Re: [Matplotlib-users] imshow axis labels
You may just want to start with the custom_ticker1.py example here: http://matplotlib.sourceforge.net/examples/pylab_examples/custom_ticker1.html The meat of it is just to provide a function that converts the incoming values (in your case pixel positions) into whatever you want to be displayed. Cheers, Mike Jeremy Lewi wrote: I want to let matplotlib control where the tick marks go, but I want to scale the value of the tick labels. For example, if my matrix has a 100 columns the tick marks might be [0,25,50,100]. I want to scale these tick labels by some value say .01 so that the corresponding tick labels would be [0,.25,.5,1]. Now say I zoom in on the image so that the xaxis limits are (0,50). Lets suppose the tick marks are now [0,10,20,30,40,50] Then in this case the tick labels should be [0,.1,.2,.3,.4,.5] So how do I go about creating a custom formatter? Thanks Jeremy Michael Droettboom wrote: What are you setting the x ticklabels to? If you want to control how the numbers are displayed, you can create a custom formatter (which is basically a function to convert a floating-point number to a string). If you want to control the number of ticks across the axis, you can make a custom ticker. If you can describe what your end goal is, I'm happy to describe the above options in more detail. Cheers, Mike Jeremy Lewi wrote: Hi, I'm using imshow to make an image of a 2-d matrix. I use set_xticklabels to adjust the x-axis labels. The problem is that when I then zoom in on the plot, the axis labels are not adjusted appropriately. Does anyone suggestions on how I can fix this? Thanks Jeremy -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] imshow axis labels
Hi, I'm using imshow to make an image of a 2-d matrix. I use set_xticklabels to adjust the x-axis labels. The problem is that when I then zoom in on the plot, the axis labels are not adjusted appropriately. Does anyone suggestions on how I can fix this? Thanks Jeremy -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] imshow axis labels
What are you setting the x ticklabels to? If you want to control how the numbers are displayed, you can create a custom formatter (which is basically a function to convert a floating-point number to a string). If you want to control the number of ticks across the axis, you can make a custom ticker. If you can describe what your end goal is, I'm happy to describe the above options in more detail. Cheers, Mike Jeremy Lewi wrote: Hi, I'm using imshow to make an image of a 2-d matrix. I use set_xticklabels to adjust the x-axis labels. The problem is that when I then zoom in on the plot, the axis labels are not adjusted appropriately. Does anyone suggestions on how I can fix this? Thanks Jeremy -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] imshow axis labels
I want to let matplotlib control where the tick marks go, but I want to scale the value of the tick labels. For example, if my matrix has a 100 columns the tick marks might be [0,25,50,100]. I want to scale these tick labels by some value say .01 so that the corresponding tick labels would be [0,.25,.5,1]. Now say I zoom in on the image so that the xaxis limits are (0,50). Lets suppose the tick marks are now [0,10,20,30,40,50] Then in this case the tick labels should be [0,.1,.2,.3,.4,.5] So how do I go about creating a custom formatter? Thanks Jeremy Michael Droettboom wrote: What are you setting the x ticklabels to? If you want to control how the numbers are displayed, you can create a custom formatter (which is basically a function to convert a floating-point number to a string). If you want to control the number of ticks across the axis, you can make a custom ticker. If you can describe what your end goal is, I'm happy to describe the above options in more detail. Cheers, Mike Jeremy Lewi wrote: Hi, I'm using imshow to make an image of a 2-d matrix. I use set_xticklabels to adjust the x-axis labels. The problem is that when I then zoom in on the plot, the axis labels are not adjusted appropriately. Does anyone suggestions on how I can fix this? Thanks Jeremy -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
