matplotlib / matplotlib/basemap
Lambert azimuthal equal-area projection for full globe
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- Dominant language
- Python
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- 817
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Description
The Lambert azimuthal equal-area projection can show the full globe, as in the example image in the Wikipedia article. However, with Basemap(projection='laea',...) I'm only able to plot a small portion of the globe. Once the width or height are > 15 million or so, it gives an error "ValueError: width and/or height too large for this projection, try smaller values".
Is there a good reason why basemap's laea projection doesn't do the full sphere? I'm using release 1.0.7_1 from Macports.
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First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the reported Basemap(projection='laea',...) failure with width or height above roughly 15 million, then inspect the Lambert azimuthal equal-area projection path and its size validation. Compare the behavior with the full-globe example linked in the issue; done means establishing whether full-globe plotting should work and either enabling it or documenting the limitation.
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Assessment
- Tech stack
- python
- Domain
- data-visualization
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100