[Matplotlib-users] TypeError when plotting dates on Windows 32 bit
I recently upgrade to Python 2.7 (I used EPD Free for the install which comes with matplotlib 1.1.0) and I'm getting the following error when I try to plot dates. I've tried a few different backends, but they all seem to give the same error. I had no issues using Python 2.6 up to now. I think this may have to do with the new requirement in Python 2.7 that if you passed a float to a function that was defined as an int, it now raises a TypeError (instead of a DeprecationWarning). Traceback (most recent call last): File C:\Python27\lib\site-packages\matplotlib\backends\backend_wx.py, line 1289, in _onLeftButtonDown FigureCanvasBase.button_press_event(self, x, y, 1, guiEvent=evt) File C:\Python27\lib\site-packages\matplotlib\backend_bases.py, line 1632, in button_press_event self.callbacks.process(s, mouseevent) File C:\Python27\lib\site-packages\matplotlib\cbook.py, line 256, in process proxy(*args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\cbook.py, line 189, in __call__ return mtd(*args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\backend_bases.py, line 1522, in pick self.figure.pick(mouseevent) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 332, in pick a.pick(mouseevent) File C:\Python27\lib\site-packages\matplotlib\axes.py, line 3038, in pick martist.Artist.pick(self,args[0]) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 332, in pick a.pick(mouseevent) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 321, in pick self.figure.canvas.pick_event(mouseevent, self, **prop) File C:\Python27\lib\site-packages\matplotlib\backend_bases.py, line 1598, in pick_event self.callbacks.process(s, event) File C:\Python27\lib\site-packages\matplotlib\cbook.py, line 256, in process proxy(*args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\cbook.py, line 189, in __call__ return mtd(*args, **kwargs) File C:\src\QC_DUAL\src\QC_DUAL\databrowser.py, line 284, in onpick self.fig.canvas.draw() File C:\Python27\lib\site-packages\matplotlib\backends\backend_wxagg.py, line 59, in draw FigureCanvasAgg.draw(self) File C:\Python27\lib\site-packages\matplotlib\backends\backend_agg.py, line 401, in draw self.figure.draw(self.renderer) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\figure.py, line 884, in draw func(*args) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\axes.py, line 1983, in draw a.draw(renderer) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\axis.py, line 1036, in draw ticks_to_draw = self._update_ticks(renderer) File C:\Python27\lib\site-packages\matplotlib\axis.py, line 926, in _update_ticks tick_tups = [ t for t in self.iter_ticks()] File C:\Python27\lib\site-packages\matplotlib\axis.py, line 873, in iter_ticks majorLocs = self.major.locator() File C:\Python27\lib\site-packages\matplotlib\dates.py, line 594, in __call__ dates = self.rule.between(dmin, dmax, True) File C:\Python27\lib\site-packages\dateutil\rrule.py, line 207, in between for i in gen: File C:\Python27\lib\site-packages\dateutil\rrule.py, line 451, in _iter dayset, start, end = getdayset(year, month, day) File C:\Python27\lib\site-packages\dateutil\rrule.py, line 797, in ddayset i = datetime.date(year, month, day).toordinal()-self.yearordinal TypeError: integer argument expected, got float -- Virtualization Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] TypeError when plotting dates on Windows 32 bit
On Wed, Mar 14, 2012 at 2:16 PM, Aman Thakral aman.thak...@gmail.comwrote: I recently upgrade to Python 2.7 (I used EPD Free for the install which comes with matplotlib 1.1.0) and I'm getting the following error when I try to plot dates. I've tried a few different backends, but they all seem to give the same error. I had no issues using Python 2.6 up to now. I think this may have to do with the new requirement in Python 2.7 that if you passed a float to a function that was defined as an int, it now raises a TypeError (instead of a DeprecationWarning). Traceback (most recent call last): File C:\Python27\lib\site-packages\matplotlib\backends\backend_wx.py, line 1289, in _onLeftButtonDown FigureCanvasBase.button_press_event(self, x, y, 1, guiEvent=evt) File C:\Python27\lib\site-packages\matplotlib\backend_bases.py, line 1632, in button_press_event self.callbacks.process(s, mouseevent) File C:\Python27\lib\site-packages\matplotlib\cbook.py, line 256, in process proxy(*args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\cbook.py, line 189, in __call__ return mtd(*args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\backend_bases.py, line 1522, in pick self.figure.pick(mouseevent) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 332, in pick a.pick(mouseevent) File C:\Python27\lib\site-packages\matplotlib\axes.py, line 3038, in pick martist.Artist.pick(self,args[0]) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 332, in pick a.pick(mouseevent) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 321, in pick self.figure.canvas.pick_event(mouseevent, self, **prop) File C:\Python27\lib\site-packages\matplotlib\backend_bases.py, line 1598, in pick_event self.callbacks.process(s, event) File C:\Python27\lib\site-packages\matplotlib\cbook.py, line 256, in process proxy(*args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\cbook.py, line 189, in __call__ return mtd(*args, **kwargs) File C:\src\QC_DUAL\src\QC_DUAL\databrowser.py, line 284, in onpick self.fig.canvas.draw() File C:\Python27\lib\site-packages\matplotlib\backends\backend_wxagg.py, line 59, in draw FigureCanvasAgg.draw(self) File C:\Python27\lib\site-packages\matplotlib\backends\backend_agg.py, line 401, in draw self.figure.draw(self.renderer) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\figure.py, line 884, in draw func(*args) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\axes.py, line 1983, in draw a.draw(renderer) File C:\Python27\lib\site-packages\matplotlib\artist.py, line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File C:\Python27\lib\site-packages\matplotlib\axis.py, line 1036, in draw ticks_to_draw = self._update_ticks(renderer) File C:\Python27\lib\site-packages\matplotlib\axis.py, line 926, in _update_ticks tick_tups = [ t for t in self.iter_ticks()] File C:\Python27\lib\site-packages\matplotlib\axis.py, line 873, in iter_ticks majorLocs = self.major.locator() File C:\Python27\lib\site-packages\matplotlib\dates.py, line 594, in __call__ dates = self.rule.between(dmin, dmax, True) File C:\Python27\lib\site-packages\dateutil\rrule.py, line 207, in between for i in gen: File C:\Python27\lib\site-packages\dateutil\rrule.py, line 451, in _iter dayset, start, end = getdayset(year, month, day) File C:\Python27\lib\site-packages\dateutil\rrule.py, line 797, in ddayset i = datetime.date(year, month, day).toordinal()-self.yearordinal TypeError: integer argument expected, got float Ok, so I managed to track this down. Apparently I was using a float instead of an int in the interval argument of the HourLocator. I think casting to the interval argument to int in the dates.HourLocator class would be a good idea so users not familiar with the nuance won't have to deal with this headache. -- Virtualization Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] it is possible to use basemap to create regular spaced lat/lon grids?
Hi Matt, Something like this?: def create_map(ax, llcrnrlon,llcrnrlat,urcrnrlon,urcrnrlat): m = Basemap(llcrnrlon=llcrnrlon,llcrnrlat=llcrnrlat,urcrnrlon=urcrnrlon,urcrnrlat=urcrnrlat,resolution='i',projection='cyl',lon_0=(urcrnrlon+llcrnrlon)/2,lat_0=(urcrnrlat+llcrnrlat)/2) m.drawcoastlines() m.drawmapboundary() m.drawstates(linewidth=3) m.fillcontinents(color='lightgrey',lake_color='white') m.drawcountries(linewidth=3) return m def plotMapData(ax,data): lats = [] lons = [] val = [] for k,v in data.iteritems(): lats.append(float(k[0])) lons.append(float(k[1])) val.append(float(v)) value = np.array(val) lat = np.array(lats) lon = np.array(lons) llcrnlon = lon.min()-0.5 llcrnlat = lat.min()-0.5 urcrnlon = lon.max()+0.5 urcrnlat = lat.max()+0.5 xi = np.linspace(llcrnlon,urcrnlon,1000) yi = np.linspace(llcrnlat,urcrnlat,1000) zi = griddata(lon,lat,value,xi,yi) cmap = cm.jet m = create_map(ax,llcrnlon,llcrnlat,urcrnlon,urcrnlat) cs = ax.contour(xi,yi,zi,15,linewidth=0.5,cmap=cmap,alpha=0.5) ax.contourf(xi,yi,zi,15,cmap=cmap,zorder=1000,alpha=0.5) colorscale = cm.ScalarMappable() colorscale.set_array(value) colorscale.set_cmap(cmap) colors = colorscale.to_rgba(value) ax.scatter(lon,lat,c=colors,zorder=1000,cmap=cmap,s=10) colorbar(colorscale, shrink=0.50, ax=ax,extend='both') On Tue, Sep 6, 2011 at 1:28 PM, Matt Funk matze...@gmail.com wrote: Hi, i want to interpolate irregular spaced satellite data onto a regular spaced grid. The regular spaced grid should have cell sizes of 1km^2. Is it possible to use basemap to create such a grid. It looked like it includes some facilities like that, but i am not sure if they are meant to be used by end user or more like internal fcns (the makegrid fcn for example). Any advice would be appreciated. thanks matt -- Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free Love Thy Logs t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Malware Security Report: Protecting Your Business, Customers, and the Bottom Line. Protect your business and customers by understanding the threat from malware and how it can impact your online business. http://www.accelacomm.com/jaw/sfnl/114/51427462/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Plotting using Basemap and FigCanvasAgg with Matplotlib on a web server
Sorry about that. I've attached a sample script. -Aman On Wed, Aug 24, 2011 at 9:05 PM, John Hunter jdh2...@gmail.com wrote: On Aug 24, 2011, at 4:09 PM, Aman Thakral aman.thak...@gmail.com wrote: Hi, I've recently created a web application, using Django, to dynamically create maps from weather data. When I tried using FigCanvasAgg and figure.Figure, the image that was responded by the web server (using canvas.print_png and django.http.HttpResponse) did not show the map, just the scatter points. When I just saved the figure (that was created using a matplotlib.pyplot.figure() instance) in folder that is statically available on the web server, the image is perfect. There is an advantage to using the latter method as the saved images can be cached, but I'm curious as to why the FigCanvasAgg method doesn't work. Is this a known issue? If so, are there any workarounds? Any help on this issue would be greatly appreciated. You will need to post an example script. views.py Description: Binary data -- EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Plotting using Basemap and FigCanvasAgg with Matplotlib on a web server
OK, so it seems to be working if I use fig=plt.figure() instead of fig = Figure() but I'm not sure why this is the case. -Aman On Thu, Aug 25, 2011 at 10:50 AM, Aman Thakral aman.thak...@gmail.comwrote: Sorry about that. I've attached a sample script. -Aman On Wed, Aug 24, 2011 at 9:05 PM, John Hunter jdh2...@gmail.com wrote: On Aug 24, 2011, at 4:09 PM, Aman Thakral aman.thak...@gmail.com wrote: Hi, I've recently created a web application, using Django, to dynamically create maps from weather data. When I tried using FigCanvasAgg and figure.Figure, the image that was responded by the web server (using canvas.print_png and django.http.HttpResponse) did not show the map, just the scatter points. When I just saved the figure (that was created using a matplotlib.pyplot.figure() instance) in folder that is statically available on the web server, the image is perfect. There is an advantage to using the latter method as the saved images can be cached, but I'm curious as to why the FigCanvasAgg method doesn't work. Is this a known issue? If so, are there any workarounds? Any help on this issue would be greatly appreciated. You will need to post an example script. -- EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Plotting using Basemap and FigCanvasAgg with Matplotlib on a web server
Hi, I've recently created a web application, using Django, to dynamically create maps from weather data. When I tried using FigCanvasAgg and figure.Figure, the image that was responded by the web server (using canvas.print_png and django.http.HttpResponse) did not show the map, just the scatter points. When I just saved the figure (that was created using a matplotlib.pyplot.figure() instance) in folder that is statically available on the web server, the image is perfect. There is an advantage to using the latter method as the saved images can be cached, but I'm curious as to why the FigCanvasAgg method doesn't work. Is this a known issue? If so, are there any workarounds? Any help on this issue would be greatly appreciated. Thanks, Aman -- EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Changing the radius of an existing CircleCollection
Hi All, I have a wx application that uses a scatter plot on a map. I am trying to figure out how to change the radius of the circles of the existing scatter plot. My first thought would be to get a list of all the patches within the CircleCollection instance so that I can just call the set_radius method for the patches.Circle instance. I haven't found a get the patches within a collection though. Is this possible? Thanks, Aman -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] making a bar chart with time on xaxis
Hi Amy, Use the vlines() function. Its what I have used in the past. Cheers, Aman On Fri, May 27, 2011 at 12:28 PM, Amy Zhang amy.xian.zh...@gmail.comwrote: Hello, I've created the following chart using matplotlib.pyplot.plot(). However, I would like to see the data points as bars from the bottom of the graph up to the points in order to more easily show the lack of data at certain dates. Is there a way to do this using plot()? If not, how do I go about making a bar chart using time as my xaxis? And how would I format the xticks so that only months are shown, as I have it now? Thank you, Amy -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Aspect ratio of a circle
Hi Mads, Did you add axis='equal' to you axes command? e.g. ax = fig.add_subplot(111, aspect='equal') -Aman On Wed, Mar 9, 2011 at 6:07 AM, Mads Ipsen madsip...@gmail.com wrote: Hi, I am using the Qt4 based back engine for displaying a 2D plot in a widget. The plot typically contains lots of line plots. Suppose I add a CirclePolygon to the plot like this: circle = CirclePolygon((x,y), radius=0.04, edgecolor='black', facecolor='red', zorder=1) axes.add_patch(circle) Then when I start to zoom in the window the aspect ratio of the circle is not preserved (it appears like an ellipse). If you plot a line with points, displaying its points using circles, these circles do have their aspect ratio (and size) preserved. There must be some approach for achieving the same effect for a manually added circle. Any help is appreciated, Best regards, Mads -- +--+ | Mads Ipsen, Scientific developer | +---+--+ | QuantumWise A/S | phone: +45-29716388 | | Lersø Parkallé 107| www: www.quantumwise.com | | DK-2100 Copenhagen Ø, Denmark | email: mads.ip...@gmail.com | +---+--+ -- Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Aspect ratio of a circle
Could you provide some sample code that recreates the problem (and shows what you're trying to accomplish)? On Wed, Mar 9, 2011 at 8:58 AM, Mads Ipsen madsip...@gmail.com wrote: I tried that, but that will make the entire plot look very strange if xlim = [0;100] and ylim=[-1:1]. What I really want to do is add a scale free aspect ratio correct circle to the plot. Just like the circles that appear on a scatter plot. Best regards, Mads On 2011-03-09 14:44, Aman Thakral wrote: Hi Mads, Did you add axis='equal' to you axes command? e.g. ax = fig.add_subplot(111, aspect='equal') -Aman On Wed, Mar 9, 2011 at 6:07 AM, Mads Ipsen madsip...@gmail.com wrote: Hi, I am using the Qt4 based back engine for displaying a 2D plot in a widget. The plot typically contains lots of line plots. Suppose I add a CirclePolygon to the plot like this: circle = CirclePolygon((x,y), radius=0.04, edgecolor='black', facecolor='red', zorder=1) axes.add_patch(circle) Then when I start to zoom in the window the aspect ratio of the circle is not preserved (it appears like an ellipse). If you plot a line with points, displaying its points using circles, these circles do have their aspect ratio (and size) preserved. There must be some approach for achieving the same effect for a manually added circle. Any help is appreciated, Best regards, Mads -- +--+ | Mads Ipsen, Scientific developer | +---+--+ | QuantumWise A/S | phone: +45-29716388 | | Lersø Parkallé 107| www: www.quantumwise.com | | DK-2100 Copenhagen Ø, Denmark | email: mads.ip...@gmail.com | +---+--+ -- Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- +--+ | Mads Ipsen, Scientific developer | +---+--+ | QuantumWise A/S | phone: +45-29716388 | | Lersø Parkallé 107| www: www.quantumwise.com | | DK-2100 Copenhagen Ø, Denmark | email: mads.ip...@gmail.com | +---+--+ -- Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Basemap interp nearest neighbor
On a similar note, are there any alternatives available to nearest neighbor? For example, kriging? I remember seeing a geostats library in python (hpgl i think), but I found the API rather impractical and difficult to use. Thanks, Aman On Mon, Mar 7, 2011 at 8:23 AM, Jeff Whitaker jsw...@fastmail.fm wrote: On 3/7/11 5:50 AM, Jeff Whitaker wrote: On 3/6/11 8:58 PM, Juan A. Saenz wrote: Hi, I use Basemap and netCDF4-python on a regular basis, and find them very useful tools. Thank you for developing them! I noticed that when using basemap.interp for nearest neighbor (order=0) the interpolation is not masked, and nearest neighbor masked values will be used in the interpolation. I was wondering if you could suggest a way to do nearest neighbor interpolation where masked are supported, i.e. nearest neighbor values that are not masked. Thanks for your help, Juan Juan: I agree that this would be desirable behavior. Unfortunately, it's not obvious to me how to do it. I'll think about it and get back to you. (cc'ing matplotlib-users list). -Jeff Juan: On second thought, I'm not sure this is desirable behavior. I would guess that most of the time, if a nearest neighbor is masked, the user would expect the interpolation routine to return a masked value. I would be interested to hear what others think. -Jeff -- What You Don't Know About Data Connectivity CAN Hurt You This paper provides an overview of data connectivity, details its effect on application quality, and explores various alternative solutions. http://p.sf.net/sfu/progress-d2d ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- What You Don't Know About Data Connectivity CAN Hurt You This paper provides an overview of data connectivity, details its effect on application quality, and explores various alternative solutions. http://p.sf.net/sfu/progress-d2d___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] How to create space between two subplots?
Hi Omer, use the subplots_adjust keyword argument (or click on the adjust subplots icon in the navigation toolbar at the bottom of the figure). http://matplotlib.sourceforge.net/api/figure_api.html#matplotlib.figure.Figure.subplots_adjust -Aman On Tue, Feb 15, 2011 at 6:05 AM, Omer Khalid okhalid.c...@gmail.com wrote: Hi, I am trying to create two subplots in the same figure. Currently, the x-axis of first plot overlaps with the title of second plot. I was wondering if there is a function for figure object that allows to create vertical space between two plots so that the axis and title text doesn't overlap? Regards omer -- The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matploblib multithreading
Have you looked into Celery? It is a queuing system with Django ORM support. I don't have any experience with it myself, but I have heard good things about it. -Aman 2011/2/14 wukan wekay102...@gmail.com: Hi ,When I use matplotlib to draw 2D graphics in django web site，I encounter a problem. when server users use matplotlib to draw graphics simultaneously will cause website collapse. when one user use matplotlib to draw graphics will have no problem. i suppose matplotlib doesnot support multithreading drawing. so i put the draw function in a thread . it can't work as before. so why matplotlib doesnot support multithreading drawing? How to solve this problem. Hope I can receive help from you. Regards wekay -- The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Update individual elements (i.e an artist) for drawing
Hi, I was just wondering, how would I go about redrawing only a single element (i.e. an artist)? I know that matplotlib.artist.Artist has a draw() method that accepts a renderer as the argument. I tried something along the lines of: renderer = fig.canvas.get_renderer() title = ax.set_title(This is my title) title.draw(renderer) But have not had any luck. I'm not sure what I'm missing. Any help would be greatly appreciated. Thanks, Aman -- The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Figure and Canvas
Hi Oliver, Have you looked at any examples on the matplotlib site? For instance, there are several examples about how to use wxPython (wx) with matplotlib. Also, there is a save feature currently available in current gui when you run figure() (it is a floppy disk in navigation panel below the figure). Aman On Fri, Nov 12, 2010 at 5:20 AM, Olivier Verdier zelb...@gmail.com wrote: Hi, I would like to use matplotlib in a programmatic way. I thought about creating a Figure object (with no canvas), and plot in that Figure. Depending on what the user wants, I could then either plot on screen or save on file. The problem is that I don't know how to connect a Figure object to the FigureCanvas that the user chose in its preference file. In other words, I would like to do what the function figure() does, but for an existing Figure object. How could I do that? Thanks! == Olivier -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] automatically choose different line markers
Honestly, I can't even remember why it is wrapped. I think this is just a
relic of some old example that I had lying around. Serves me right for just
copying and pasting without thinking :P . A straight call to
itertools.cycle is definitely much cleaner. Also, is there an example of
this in the docs? If not, it would be a useful addition. Seems like a
common feature to address.
Cheers,
Aman
On Mon, Nov 8, 2010 at 10:41 PM, Ryan May rma...@gmail.com wrote:
On Fri, Nov 5, 2010 at 8:07 AM, Aman Thakral aman.thak...@gmail.com
wrote:
Hi,
The best way to do this is to use a generator:
import itertools
import matplotlib.pyplot as plt
import numpy as np
def _ncycle(iterable,n):
Method to create a generator from an iterable. It keeps the
current position of the iterable in memory. Each time the
next() method for the iterable is called, it will return the
next item. If there are no more items, it will cycle to the
first item.
for item in itertools.cycle(iterable):
yield item
colors = _ncycle(('r','g','b','c','y','m','k'),1)
markers = _ncycle(('o','s','v'),1)
I like the thought, but I'm not sure why you're making it so
complicated by wrapping it. itertools.cycle by itself is perfect, and
there's no reason to prime it by calling next() before the plot. The
following is a bit more succint IMO:
import itertools
import matplotlib.pyplot as plt
import numpy as np
colors = itertools.cycle(['r','g','b','c','y','m','k'])
markers = itertools.cycle(['o','s','v'])
fig = plt.figure()
ax = fig.add_subplot(111)
for i in range(10):
x = np.linspace(0, 2*np.pi)
y = np.sin(x) + np.random.randn(*x.shape)
ax.plot(x, y, c=colors.next(), marker=markers.next())
plt.show()
Also, you can avoid calling colors.next() and markers.next() if you
put them in a zip command along with range().
Ryan
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Re: [Matplotlib-users] automatically choose different line markers
Hi,
The best way to do this is to use a generator:
import itertools
import matplotlib.pyplot as plt
import numpy as np
def _ncycle(iterable,n):
Method to create a generator from an iterable. It keeps the
current position of the iterable in memory. Each time the
next() method for the iterable is called, it will return the
next item. If there are no more items, it will cycle to the
first item.
for item in itertools.cycle(iterable):
yield item
colors = _ncycle(('r','g','b','c','y','m','k'),1)
markers = _ncycle(('o','s','v'),1)
n = 20
fig = plt.figure()
ax = fig.add_subplot(111)
for i in range(n):
x = np.arange(0,10)
y = np.sin(x)+i-n/2
c = colors.next()
if c == 'r':
marker = markers.next()
ax.plot(x,y,c=c,marker=marker)
plt.show()
On Fri, Nov 5, 2010 at 8:29 AM, Neal Becker ndbeck...@gmail.com wrote:
How can I automatically cycle through distinctive line markers?
I want a semilog plot, composed of a number of lines. Each line should
have
a different color and marker.
Cycling through the colors is automatic, but not the markers.
BTW, shouldn't this behavior be the default? I would just like to say
markers=True and get this behavior.
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Re: [Matplotlib-users] Bring the legend to the front of a plot
Hi, I've managed to fix it. It was a very simple solution. The axes are added in sequential, so I just used the latest axes to be added as the basis for the legend. I've attached a modification of a matplotlib example (multiple_y_axis_with_splines.py) to show the behavior. Perhaps the example should be updated. Regards, Aman On Sun, Sep 26, 2010 at 10:48 PM, Jae-Joon Lee lee.j.j...@gmail.com wrote: Please post a sample script (short but complete) that demonstrates your problem. Regards, -JJ On Sat, Sep 25, 2010 at 12:41 AM, Aman Thakral aman.thak...@gmail.com wrote: Hi all, I'm using a draggable legend (class, not function) with axes splines. Whenever I plot the legend using the host axes, the legend appears to behind all of the lines. I want the user to be able to drag the legend but I cannot select it when its inside the axes. If I move it outside the axes (by setting the location), I can drag it around. Is there anyway to bring the legend to the front? Thanks, Aman -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Aman Thakral B.Eng Biosci, M.Eng Design multiple_y_axis_with_splines_mod.py Description: Binary data -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Changing behavior of a Pick Event
Hi, Is there a way to change the way a Pick event occurs? Instead of a mouse click, is it possible to use a mouse hover? I'm just curious because I'm developing a wx application and would like to have a Tooltip over various artists. Thanks, Aman -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Bring the legend to the front of a plot
Hi all, I'm using a draggable legend (class, not function) with axes splines. Whenever I plot the legend using the host axes, the legend appears to behind all of the lines. I want the user to be able to drag the legend but I cannot select it when its inside the axes. If I move it outside the axes (by setting the location), I can drag it around. Is there anyway to bring the legend to the front? Thanks, Aman -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Mouse event blocked in 1.0 but works with 0.93 ?
Hi David, I'm using the pick event in wx (matplotlib 1.0) without any issues. Could you please post some sample code? Have you tried to see if legend.draggable() works? If so, the pick event is likely not an issue. -Aman On Thu, Sep 23, 2010 at 4:20 AM, David Trémouilles david.t...@gmail.comwrote: Hello, I've just updated matplotlib to 1.0 svn version from 0.93. My pyqt4 app use the pick event. Cliking on a point in the graph triggers an event but with matplotlib 1.0 it does not anymore while it was working fine with 0.93. Any idea/help on where I should look for ? Thanks in advance, David -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matplotlib/basemap plot geo data on background map
If you're just looking for points, you can use ax.scatter(). It will plot the points. Also, make sure you set the zorder keyword argument in the scatter. Example: x=range(10) y=range(10) z=range(10,20) ax.scatter(x,y,c=z,zorder=10) Hope this helps, Aman On Fri, Sep 10, 2010 at 1:06 PM, izzybitsie isid...@juno.com wrote: Hi, I'm new to matplotlib and I'm looking for an easy way to plot geographical data on a background map: bkgmap.png http://old.nabble.com/file/p29679002/bkgmap.png So far I only found out about warpimage() to do this but only part of bkgmap.png comes up in the output image. I think this is because this image has no pixels covering all the world. http://old.nabble.com/file/p29679002/partialbkg_polygon.png Any idea on how to insert this image as background? THANKS Code: the polygon displays in right position even though background doesn't show OK (tested with map,lat/lon lines drawn too) import sys import Image, ImageDraw # PIL from matplotlib.patches import Polygon from mpl_toolkits.basemap import Basemap import matplotlib.image as mpimg import matplotlib.pyplot as plt import numpy as np lat0=48 lon0=13 lllon=-15 lllat=20 urlon=73 urlat=57 map = Basemap(projection='stere',lat_0=lat0,lon_0=lon0,llcrnrlon=lllon,llcrnrlat=lllat,urcrnrlon=urlon,urcrnrlat=urlat, resolution='c',area_thresh=1000.) map.warpimage(image='bkgmap.png',scale=None,ax=plt.gca()) # points lat = [50.,55.,45.,40.,50.] lon = [-20.,-10.,10.,-10.,-20.] x0,y0 = map(lon[0],lat[0]) x1,y1 = map(lon[1],lat[1]) x2,y2 = map(lon[2],lat[2]) x3,y3 = map(lon[3],lat[3]) x4,y4 = map(lon[4],lat[4]) plt.gca().add_patch(Polygon([(x0,y0),(x1,y1),(x2,y2),(x3,y3),(x4,y4)],fill=1,facecolor='red',edgecolor='black')) plt.show() -- View this message in context: http://old.nabble.com/matplotlib-basemap-plot-geo-data-on-background-map-tp29679002p29679002.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing http://p.sf.net/sfu/novell-sfdev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Aman Thakral B.Eng Biosci, M.Eng Design -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing http://p.sf.net/sfu/novell-sfdev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Span Selector and Rectangular Selector in wxpython on Windows
Sorry, This was just a silly mistake. I forgot declare the selectors as class variables (by adding self in front of them). -Aman On Tue, Sep 7, 2010 at 1:37 PM, Aman Thakral aman.thak...@gmail.com wrote: Hi, I seem to be encountering a strange problem. I'm using a SpanSelector and a RectangularSelector in my application and they seem to be working in Linux but not in Windows. I'm using wxpython as the gui layer. Has anyone else encountered similar issues? Thanks, Aman -- Aman Thakral B.Eng Biosci, M.Eng Design -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matplotlib import warning
try this in the terminal:
python -c import matplotlib
-Aman
On Wed, Sep 8, 2010 at 12:17 PM, Gökhan Sever gokhanse...@gmail.com wrote:
Hello,
My usual ipython -pylab is giving me these warnings after I installed
matplotlib from the source (matplotlib rev.8624 using python setupegg.py
develop).
/usr/lib/python2.6/site-packages/EPDLab-3.0.1.dev_r24658-py2.6.egg/enthought/__init__.py:7:
UserWarning: Module dateutil was already imported from
/home/user/Desktop/python-repo/matplotlib/lib/dateutil/__init__.pyc, but
/usr/lib/python2.6/site-packages is being added to sys.path
__import__('pkg_resources').declare_namespace(__name__)
Under /site-packages in easy-install.pth I moved
the /home/user/Desktop/python-repo/matplotlib/lib line to the very bottom of
the file but this doesn't make any change.
Any ideas how to remove this warning?
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[Matplotlib-users] Span Selector and Rectangular Selector in wxpython on Windows
Hi, I seem to be encountering a strange problem. I'm using a SpanSelector and a RectangularSelector in my application and they seem to be working in Linux but not in Windows. I'm using wxpython as the gui layer. Has anyone else encountered similar issues? Thanks, Aman -- This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Map displayed on a plot
Here is an example of the general usage for an orthographic projection. def genMap(fig, ax, llcrnrlon,llcrnrlat,urcrnrlon,urcrnrlat): fig.sca(ax) m = Basemap(resolution='i',projection='ortho',lon_0=(urcrnrlon+llcrnrlon)/2,lat_0=(urcrnrlat+llcrnrlat)/2) m.drawcoastlines() m.drawmapboundary(fill_color='aqua') m.drawstates(linewidth=3) m.fillcontinents(color='coral',lake_color='aqua') m.drawcountries(linewidth=3) where: llcrnlon = lower left corner longitude llcrnlat = lower left corner latitude urcrnlon =upper right corner longitude urcrnlat = upper right corner latitude On Fri, Aug 27, 2010 at 1:39 PM, Brian Larsen balar...@lanl.gov wrote: Ben, I have but no where in there do I see (or at least understand) how to draw a map on top of a current figure with set bounds in data space... Cheers, Brian On Aug 27, 2010, at 11:24 AM, Benjamin Root wrote: On Fri, Aug 27, 2010 at 12:11 PM, Brian Larsen balar...@lanl.gov wrote: Hello all, I am plotting satellite orbit files and it looks really nice to plot an Earth in the center with the continents on it to orient people to where the spacecraft is. Does anyway know how to do this? All I seem to be able to do is create a whole globe as the figure. In this simple example: from pylab import * r = ndarray(40) r[:] = 3.3 rad = linspace(0, 2*pi, 40) figure() subplot(111, polar=True) plot(rad, r, lw=3) draw() wouldn't it look great to have the earth plotted in the space up to 1.0 (as measured in earth radii)? Thanks much, Brian Have you checked out the basemap tool? http://matplotlib.sourceforge.net/basemap/doc/html/ Ben Root -- Brian A. Larsen Space Science and Applications Group ISR-1 Los Alamos National Laboratory PO Box 1663, MS-D466 Los Alamos, NM 87545 USA (For overnight add: SM-30, Bikini Atoll Road) Phone: 505-665-7691 Fax: 505-665-7395 email: balar...@lanl.gov Correspondence / Technical data or Software Publicly Available -- Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Aman Thakral B.Eng Biosci, M.Eng Design -- Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Labeling/distinguishing lots of curves on a single plot
Hi John,
Here is a simple way to do it.
import matplotlib.pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.add_subplot(111)
colors = ('red','green','blue','yellow','orange')
linestyles = ('-','--',':')
linewidths = (0.5,2)
y = np.random.randn(100,30)
x = range(y.shape[0])
i = 0
for c in colors:
for ls in linestyles:
for lw in linewidths:
ax.plot(x,y[:,i],c=c,ls=ls,lw=lw)
i+=1
plt.show()
On 10-08-23 03:06 PM, John Salvatier wrote:
Hello,
I have a plot with lots of curves on it (say 30), and I would like to
have some way of distinguishing the curves from each other. Just
plotting them works well for a few curves because they come out as
different colors unless you specify otherwise, but if you do too many
you start getting repeats is there a way to have matplotlib also vary
the line style that it automatically assigns? Or perhaps someone has
another way of distinguishing lots of curves?
Best Regards,
John
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Re: [Matplotlib-users] Screenshot on homepage
Hi Simon, I'm fairly sure its just a contour plot with different color mappings for the lines and the fill. There are several examples of this on the site. Start here: http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.contour Best of Luck, Aman On Thu, Aug 12, 2010 at 4:44 PM, Simon Friedberger simon+matplot...@a-oben.org simon%2bmatplot...@a-oben.org wrote: Hi list members. Does anybody know how to create the graph in the middle of this http://matplotlib.sourceforge.net/_static/logo_sidebar_horiz.png image on the homepage. I can't find it in the examples and suspect it may have been taken out in a previous revision. Does anybody remember? Best Simon -- This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Aman Thakral B.Eng Biosci, M.Eng Design -- This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Text drawing outside plotting area when zoomed in
Hi all, The text draws outside the plotting area when you zoom in. Sample code is attached. To re-create the issue, just use the zoom rect function on the plot. Is there a way to fix this? Thanks, Aman text_issue.py Description: Binary data -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Text drawing outside plotting area when zoomed in
Sorry, that was a silly question. I just set the clip_on to True to fix this. On Thu, Jul 22, 2010 at 1:45 PM, Aman Thakral aman.thak...@gmail.comwrote: Hi all, The text draws outside the plotting area when you zoom in. Sample code is attached. To re-create the issue, just use the zoom rect function on the plot. Is there a way to fix this? Thanks, Aman -- Aman Thakral B.Eng Biosci, M.Eng Design -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Potential Bug with SpanSelector
Hi all, I'm getting the following exception when I use the Span Selector. It happens when I try and select the entire region. Exception in Tkinter callback Traceback (most recent call last): File C:\Python26\lib\lib-tk\Tkinter.py, line 1410, in __call__ return self.func(*args) File C:\Python26\Lib\site-packages\matplotlib\backends\backend_tkagg.py, line 246, in motion_notify_event FigureCanvasBase.motion_notify_event(self, x, y, guiEvent=event) File C:\Python26\Lib\site-packages\matplotlib\backend_bases.py, line 1245, in motion_notify_event self.callbacks.process(s, event) File C:\Python26\Lib\site-packages\matplotlib\cbook.py, line 165, in process func(*args, **kwargs) File C:\Python26\Lib\site-packages\matplotlib\widgets.py, line 952, in onmove self.rect.set_width(maxv-minv) TypeError: unsupported operand type(s) for -: 'float' and 'NoneType' My sample code is shown here (its also attached): import matplotlib.pyplot as plt from matplotlib.widgets import SpanSelector import numpy as np import datetime class TimeSelector(SpanSelector): SpanSelector that is only activated by the left mouse button def ignore(self,event): if event.button == 2 or event.button == 3: return True def onselect(xmin,xmax): print xmin,xmax fig = plt.figure() ax = fig.add_subplot(111) span = TimeSelector(ax, onselect, 'horizontal', useblit=True, rectprops=dict(alpha=0.5, facecolor='yellow') ) y = np.random.rand(100,1) start = datetime.datetime(2010,7,15,0,0) x = [] for i in range(len(y)): x.append(start + datetime.timedelta(hours=i)) ax.plot_date(x,y,'b-') plt.show() Any help on this issue would be greatly appreciated. Thanks, Aman spanselector_issue.py Description: Binary data -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Potential Bug with SpanSelector
Update on the error. It occurs in the following cases: - User clicks and drags from left to right and approaches the edge of the right side of the axes - User clicks and drags from right to left and approaches the edge of the left side of the axes I'm working on this bug now, I'll see if I can fix it. I'll welcome any input you guys can provide though. Thanks, Aman On Wed, Jul 21, 2010 at 1:58 PM, Aman Thakral aman.thak...@gmail.comwrote: Hi all, I'm getting the following exception when I use the Span Selector. It happens when I try and select the entire region. Exception in Tkinter callback Traceback (most recent call last): File C:\Python26\lib\lib-tk\Tkinter.py, line 1410, in __call__ return self.func(*args) File C:\Python26\Lib\site-packages\matplotlib\backends\backend_tkagg.py, line 246, in motion_notify_event FigureCanvasBase.motion_notify_event(self, x, y, guiEvent=event) File C:\Python26\Lib\site-packages\matplotlib\backend_bases.py, line 1245, in motion_notify_event self.callbacks.process(s, event) File C:\Python26\Lib\site-packages\matplotlib\cbook.py, line 165, in process func(*args, **kwargs) File C:\Python26\Lib\site-packages\matplotlib\widgets.py, line 952, in onmove self.rect.set_width(maxv-minv) TypeError: unsupported operand type(s) for -: 'float' and 'NoneType' My sample code is shown here (its also attached): import matplotlib.pyplot as plt from matplotlib.widgets import SpanSelector import numpy as np import datetime class TimeSelector(SpanSelector): SpanSelector that is only activated by the left mouse button def ignore(self,event): if event.button == 2 or event.button == 3: return True def onselect(xmin,xmax): print xmin,xmax fig = plt.figure() ax = fig.add_subplot(111) span = TimeSelector(ax, onselect, 'horizontal', useblit=True, rectprops=dict(alpha=0.5, facecolor='yellow') ) y = np.random.rand(100,1) start = datetime.datetime(2010,7,15,0,0) x = [] for i in range(len(y)): x.append(start + datetime.timedelta(hours=i)) ax.plot_date(x,y,'b-') plt.show() Any help on this issue would be greatly appreciated. Thanks, Aman -- Aman Thakral B.Eng Biosci, M.Eng Design -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Potential Bug with SpanSelector
Ok, so I've fixed it. Its just because the mouse goes outside the axes. How do I make the change in the code? Error: line 924 in widgets.py old code: x,y = event.xdata, event.ydata fixed code: if not event.xdata is None: x = event.xdata else: x = self.prev[0] if not event.ydata is None: y = event.ydata else: y = self.prev[1] I know it's a bit verbose, but it works. Thanks, Aman On Wed, Jul 21, 2010 at 2:44 PM, Aman Thakral aman.thak...@gmail.comwrote: Update on the error. It occurs in the following cases: - User clicks and drags from left to right and approaches the edge of the right side of the axes - User clicks and drags from right to left and approaches the edge of the left side of the axes I'm working on this bug now, I'll see if I can fix it. I'll welcome any input you guys can provide though. Thanks, Aman On Wed, Jul 21, 2010 at 1:58 PM, Aman Thakral aman.thak...@gmail.comwrote: Hi all, I'm getting the following exception when I use the Span Selector. It happens when I try and select the entire region. Exception in Tkinter callback Traceback (most recent call last): File C:\Python26\lib\lib-tk\Tkinter.py, line 1410, in __call__ return self.func(*args) File C:\Python26\Lib\site-packages\matplotlib\backends\backend_tkagg.py, line 246, in motion_notify_event FigureCanvasBase.motion_notify_event(self, x, y, guiEvent=event) File C:\Python26\Lib\site-packages\matplotlib\backend_bases.py, line 1245, in motion_notify_event self.callbacks.process(s, event) File C:\Python26\Lib\site-packages\matplotlib\cbook.py, line 165, in process func(*args, **kwargs) File C:\Python26\Lib\site-packages\matplotlib\widgets.py, line 952, in onmove self.rect.set_width(maxv-minv) TypeError: unsupported operand type(s) for -: 'float' and 'NoneType' My sample code is shown here (its also attached): import matplotlib.pyplot as plt from matplotlib.widgets import SpanSelector import numpy as np import datetime class TimeSelector(SpanSelector): SpanSelector that is only activated by the left mouse button def ignore(self,event): if event.button == 2 or event.button == 3: return True def onselect(xmin,xmax): print xmin,xmax fig = plt.figure() ax = fig.add_subplot(111) span = TimeSelector(ax, onselect, 'horizontal', useblit=True, rectprops=dict(alpha=0.5, facecolor='yellow') ) y = np.random.rand(100,1) start = datetime.datetime(2010,7,15,0,0) x = [] for i in range(len(y)): x.append(start + datetime.timedelta(hours=i)) ax.plot_date(x,y,'b-') plt.show() Any help on this issue would be greatly appreciated. Thanks, Aman -- Aman Thakral B.Eng Biosci, M.Eng Design -- Aman Thakral B.Eng Biosci, M.Eng Design -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Update Colorbar
Hi, Is there a way to get the current colorbar (or a list of colorbars) for the current axes and update the mappable property? If an update is not possible, i would like to replace the current colorbar with a new one. I've tried something similar to the following: import pylab as plt fig = plt.figure() ax = fig.add_subplot(111) x = range(10) y = range(10) z = range(10) scatter1 = ax.scatter(x,y,c=z,visible=False) cbar = fig.colorbar(scatter1) z = range(10,20) scatter2 = ax.scatter(x,y,c=range(10,20),visible=True) cbar.mappable = scatter2 plt.show() but the colorbar is still on the range 0...9. Also, is there a way to control the visibility of the colorbar? Thanks, Aman -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Updating Scatter Plot data
Hi, I was just curious if there is a way to update the data for a scatter plot similar to the set_data function for a axes.plot object? The reason is because I need to update a scatter plot at various zoom levels and colors/distribution of the circles will change with the zoom level. I looked at the output from the get_paths and it does not correspond to the vertices of circles that are in the plot. Any help would be greatly appreciated. Thanks, Aman -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Updating Scatter Plot data
I found one method to work around this. I iterate through the list of collections by accessing the axes.collections list and checking to see if the type of the collection is a CircleCollection. If so, I remove the item then redraw the collection for the appropriate zoom level. This doesn't really seem like an optimal way of doing this though. -Aman On Wed, Jul 7, 2010 at 4:36 PM, Aman Thakral aman.thak...@gmail.com wrote: Hi, I was just curious if there is a way to update the data for a scatter plot similar to the set_data function for a axes.plot object? The reason is because I need to update a scatter plot at various zoom levels and colors/distribution of the circles will change with the zoom level. I looked at the output from the get_paths and it does not correspond to the vertices of circles that are in the plot. Any help would be greatly appreciated. Thanks, Aman -- Aman Thakral B.Eng Biosci, M.Eng Design -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Adding Streets to a Basemap
Hi, I have a cylindrical projection that I would like to add some streets on. I only need major highways in southern Ontario, Canada. Is this functionality included in the Basemap package, or would I have to find a customized package/shape file (Openstreet?) ? Thanks, Aman -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Adding Streets to a Basemap
Hi Jeff, Thanks for your help. The shapefile works great, but I cannot see the labels. The DESCRIP attribute in the shapefile has the labels, but I'm not sure how to apply them to the map. Thanks, Aman On Tue, Jul 6, 2010 at 9:27 AM, Jeff Whitaker jsw...@fastmail.fm wrote: On 7/6/10 7:07 AM, Aman Thakral wrote: Hi, I have a cylindrical projection that I would like to add some streets on. I only need major highways in southern Ontario, Canada. Is this functionality included in the Basemap package, or would I have to find a customized package/shape file (Openstreet?) ? Thanks, Aman Aman: Basemap does not include a streets database (only coastlines, rivers, lakes and political boundaries). Shouldn't be too hard to find a shapefile that fits your needs though. -Jeff -- Aman Thakral B.Eng Biosci, M.Eng Design -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] zorder for individual points in a scatter plot on a Basemap
Hi,
I'm currently using a scatter plot on a Basemap and I'd like to set the
zorder of the individual points based on their temperature. The higher
the temperature, the higher the zorder. Also, i'm using a colorbar to
set the colors for the plot. Here is a snippet of my code:
x = np.array(val)
fig.sca(ax1)
lon_0 =(urcrnrlon+llcrnrlon)/2
lat_0 =(urcrnrlat+llcrnrlat)/2
m =
Basemap(llcrnrlon=llcrnrlon,llcrnrlat=llcrnrlat,urcrnrlon=urcrnrlon,
urcrnrlat=urcrnrlat,resolution='i',projection='cyl',lon_0=lon_0,lat_0=lat_0)
m.drawcoastlines()
m.drawmapboundary()
m.drawparallels(np.arange(llcrnrlat-1,urcrnrlat+1,5.))
m.drawmeridians(np.arange(llcrnrlon-1,urcrnrlon+1,5.))
m.fillcontinents(color='white',lake_color='aqua')
m.drawcountries(linewidth=1)
lons,lats = m(lon,lat)
#I can do it this way, but this screws up the colorbar
#for i in range(len(x)):
#
m.scatter(lons[i],lats[i],c=x[i],marker='o',picker=5,zorder=x[i])
m.scatter(lons,lats,c=x,marker='o',picker=5)
plt.title('Time Range: %s to %s'%(startDay.strftime(%b-%d
%H:%M),endDay.strftime(%b-%d %H:%M)))
plt.colorbar(shrink=0.5)
Is there anyway to set the zorder of the points without using the loop
in commented code? Any help would be greatly appreciated.
Thanks,
Aman
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Re: [Matplotlib-users] zorder for individual points in a scatter plot on a Basemap
Hi,
Thanks for the suggestions. I also came the same conclusion about ordering
the arrays before hand. This did the trick for the zorder, but I also have
to make the marker unique for each data point. I need to keep everything
into one artist since I'm using a pick event to display the data represented
by that point. I'm not sure how I can use just 1 Artist, but get a variety
of distinct shapes (circles, squares, and triangles should be sufficient).
Thanks so much!
Aman
PS. Sorry about the duplicate emails Jeff. I forgot to hit Reply to All
the first time.
On Tue, Jun 29, 2010 at 3:39 PM, Jeff Whitaker jsw...@fastmail.fm wrote:
On 6/29/10 1:19 PM, Thomas Lecocq wrote:
Hi,
What about ordering the arrays before plotting ? Are the first elements
drawn back to front ?
Thomas
**
Thomas Lecocq
Geologist
Ph.D.Student (Seismology)
Royal Observatory of Belgium
**
--
Date: Mon, 28 Jun 2010 12:55:22 -0400
From: athak...@weatherinnovations.com
To: matplotlib-users@lists.sourceforge.net
Subject: [Matplotlib-users] zorder for individual points in a scatter plot
on a Basemap
Hi,
I'm currently using a scatter plot on a Basemap and I'd like to set the
zorder of the individual points based on their temperature. The higher the
temperature, the higher the zorder. Also, i'm using a colorbar to set the
colors for the plot. Here is a snippet of my code:
x = np.array(val)
fig.sca(ax1)
lon_0 =(urcrnrlon+llcrnrlon)/2
lat_0 =(urcrnrlat+llcrnrlat)/2
m =
Basemap(llcrnrlon=llcrnrlon,llcrnrlat=llcrnrlat,urcrnrlon=urcrnrlon,
urcrnrlat=urcrnrlat,resolution='i',projection='cyl',lon_0=lon_0,lat_0=lat_0)
m.drawcoastlines()
m.drawmapboundary()
m.drawparallels(np.arange(llcrnrlat-1,urcrnrlat+1,5.))
m.drawmeridians(np.arange(llcrnrlon-1,urcrnrlon+1,5.))
m.fillcontinents(color='white',lake_color='aqua')
m.drawcountries(linewidth=1)
lons,lats = m(lon,lat)
#I can do it this way, but this screws up the colorbar
#for i in range(len(x)):
#
m.scatter(lons[i],lats[i],c=x[i],marker='o',picker=5,zorder=x[i])
m.scatter(lons,lats,c=x,marker='o',picker=5)
plt.title('Time Range: %s to %s'%(startDay.strftime(%b-%d
%H:%M),endDay.strftime(%b-%d %H:%M)))
plt.colorbar(shrink=0.5)
Is there anyway to set the zorder of the points without using the loop in
commented code? Any help would be greatly appreciated.
Thanks,
Aman: You can save the mappable from the scatter you want the colorbar to
represent, then pass that to colorbar. i.e.
im = m.scatter(lons,lats,c=x,marker='o',picker=5) # plot all the pts, save
mappable
# now do one at a time
for i in range(len(x)):
m.scatter(lons[i],lats[i],c=x[i],marker='o',picker=5,zorder=x[i])
plt.colorbar(im,shrink=0.5) # use mappable from 1st call to scatter for
colorbar
-Jeff
--
Jeffrey S. Whitaker Phone : (303)497-6313
Meteorologist FAX: (303)497-6449
NOAA/OAR/PSD R/PSD1Email : jeffrey.s.whita...@noaa.gov
325 BroadwayOffice : Skaggs Research Cntr 1D-113
Boulder, CO, USA 80303-3328 Web: http://tinyurl.com/5telg
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Aman Thakral
B.Eng Biosci, M.Eng Design
--
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[Matplotlib-users] zorder for individual points in a scatter plot on a Basemap
Hi,
I'm currently using a scatter plot on a Basemap and I'd like to set the
zorder of the individual points based on their temperature. The higher the
temperature, the higher the zorder. Also, i'm using a colorbar to set the
colors for the plot. Here is a snippet of my code:
x = np.array(val)
fig.sca(ax1)
lon_0 =(urcrnrlon+llcrnrlon)/2
lat_0 =(urcrnrlat+llcrnrlat)/2
m =
Basemap(llcrnrlon=llcrnrlon,llcrnrlat=llcrnrlat,urcrnrlon=urcrnrlon,
urcrnrlat=urcrnrlat,resolution='i',projection='cyl',lon_0=lon_0,lat_0=lat_0)
m.drawcoastlines()
m.drawmapboundary()
m.drawparallels(np.arange(llcrnrlat-1,urcrnrlat+1,5.))
m.drawmeridians(np.arange(llcrnrlon-1,urcrnrlon+1,5.))
m.fillcontinents(color='white',lake_color='aqua')
m.drawcountries(linewidth=1)
lons,lats = m(lon,lat)
#I can do it this way, but this screws up the colorbar
#for i in range(len(x)):
#
m.scatter(lons[i],lats[i],c=x[i],marker='o',picker=5,zorder=x[i])
m.scatter(lons,lats,c=x,marker='o',picker=5)
plt.title('Time Range: %s to %s'%(startDay.strftime(%b-%d
%H:%M),endDay.strftime(%b-%d %H:%M)))
plt.colorbar(shrink=0.5)
Is there anyway to set the zorder of the points without using the loop in
commented code? Any help would be greatly appreciated.
Thanks,
Aman
--
Aman Thakral
B.Eng Biosci, M.Eng Design
--
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