On 1/18/11 6:43 AM, Nathanaël Schaeffer wrote:
If it can help, here is a screenshot of the resulting figure of the
previous script :
http://www.zimagez.com/zimage/basemapbug.php
Interestingly, when hoovering the mouse over the figure the displayed
x values start at 0 on the beginning of the coastlines, not on the
drawn boudary maps, and ends at 4.83 at the other end.
On Tue, Jan 18, 2011 at 2:29 PM, Nathanaël Schaeffer
<nathanael.schaef...@gmail.com <mailto:nathanael.schaef...@gmail.com>>
wrote:
2011/1/18 Jeff Whitaker <jsw...@fastmail.fm
<mailto:jsw...@fastmail.fm>>
On 1/18/11 3:33 AM, Nathanaël Schaeffer wrote:
Dear matplotlib developpers,
I use matplotlib for several years and I'm very satisfied
with the it.
I started using the basemap package a few days ago, and I
noticed something that looks like a bug :
With the Mollweide projection (and others too), when
specifying rsphere=1.0, the coastlines is not drawn in the
left part of the plot. With rsphere=2.0 the hidden part is
smaller, and with rsphere=10.0 it is not visible.
I'm using matplotlib 1.0.0 and basemap 1.0
To reproduce the bug :
m = Basemap(projection='moll',lon_0=180,rsphere=1.0)
m.drawcoastlines(linewidth=0.5, color='grey') # draw
discrete coastlines
m.drawmapboundary() # draw a line around the map region
show()
Nathanaël: Your test script works fine for me (no coastlines
are missing). What version of the geos library did you link
against?
geos 3.2.2
Concerning your previous message, sure r=1 is small, but I would
have thought that it is a simple scaling, and with double
precision floating point numbers, this should not be a problem. In
physics, it is common to set unit radius for the sphere. Anyway,
this is not a very important bug, as setting a larger value works
well.
Nathanaël:
Can't reproduce it (I'm using geos 3.2.2 as well). Can you try
updating from svn and see if the problem persists?
You'll get hammer that way too.
-Jeff
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