[Chimera-users] HLS color adjustments?

Tom Goddard goddard at sonic.net
Wed Dec 30 11:18:09 PST 2015


Hi Oliver,

  I added a feature request to our database for ChimeraX to allow modulating colors.  I agree this would be useful.

  Exporting images with text, pseudobonds and silhouette edges as vector graphics is not easy.  Text labels could be done.  Currently we use dashed cylinders in ChimeraX for pseudobonds instead of dashed lines as in Chimera.  Silhouette edges are not computed as lines, they are just a set of pixels on boundaries where a depth change occurs so it would be difficult to turn those into lines.  Much more feasible would be to save each of these things as a separate bitmap image so they could be used as layers in a photo editing program.

	Tom



> On Dec 23, 2015, at 11:28 AM, Oliver Clarke <olibclarke at gmail.com> wrote:
> 
> Hi all,
> 
> Suggestion for ChimeraX: Allow tweaking (not replacing) color of selection, to adjust hue, lightness or saturation of selection (which could contain multiple colors). 
> 
> This would be handy when creating duotone images, where one selection is one color and another selection is a lighter (or darker) version of the same color; Or for creating Goodsell-style images where carbons are one color and heavier elements are a darker version of the same color. 
> 
> In general this would also be useful in cases where you want to edit a color that is close to but not quite the desired one - currently, launching the color editor defaults the selection to black, and it can sometimes be difficult to locate the exact color one had previously, so a way to edit colors in place would be useful for this purpose.
> 
> Another suggestion to consider - would it be possible to allow exporting to a format (perhaps SVG?) where both vector and bitmap information can be edited separately? Specifically, I’m envisioning a three-layer file, with a bitmap + text and lineart, where lineart would include pseudobonds and potentially silhouettes. This would allow easy adjustment of the thickness, style etc of silhouettes and pseudo bonds post-Chimera, and editing/reformatting of text labels. I am not sure how practical this is, but if it is feasible to implement eventually it would certainly be useful.
> 
> Cheers,
> Oliver.
> 
> 
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