Difference between revisions of "Png"
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(New comment about transparent png's) |
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| Line 3: | Line 3: | ||
===USAGE=== | ===USAGE=== | ||
| − | png filename | + | png filename, dpi |
===PYMOL API=== | ===PYMOL API=== | ||
<source lang="python"> | <source lang="python"> | ||
| − | cmd.png( string file ) | + | cmd.png( string file, dpi ) |
</source> | </source> | ||
===COMMENTS=== | ===COMMENTS=== | ||
| + | ====Transparent Backgrounds==== | ||
To obtain transparent png images, use the following command before ray-tracing and exporting your scene: | To obtain transparent png images, use the following command before ray-tracing and exporting your scene: | ||
| − | + | <source lang="python">set ray_opaque_background, 0</source> | |
| + | |||
| + | ====DPI Setting==== | ||
| + | Use the DPI option to have PyMol set the DPI of your image. If I execute | ||
| + | <source lang="python">ray 1200,1200</source> | ||
| + | then execute | ||
| + | <source lang="python">png /tmp/ex.png, dpi=300</source> | ||
| + | I will get a four-inch square image at 300dpi. Leaving off the '''dpi''' flag would net me a 1200x1200 image at 72dpi. This saves the intermediate step of having to use GIMP/PhotoShop/etc to rescale your photos for publication. | ||
[[Category:Commands|png]] | [[Category:Commands|png]] | ||
Revision as of 21:07, 4 October 2006
DESCRIPTION
png writes a png format image file of the current image to disk.
USAGE
png filename, dpi
PYMOL API
cmd.png( string file, dpi )
COMMENTS
Transparent Backgrounds
To obtain transparent png images, use the following command before ray-tracing and exporting your scene:
set ray_opaque_background, 0
DPI Setting
Use the DPI option to have PyMol set the DPI of your image. If I execute
ray 1200,1200
then execute
png /tmp/ex.png, dpi=300
I will get a four-inch square image at 300dpi. Leaving off the dpi flag would net me a 1200x1200 image at 72dpi. This saves the intermediate step of having to use GIMP/PhotoShop/etc to rescale your photos for publication.