Opened 16 years ago
Closed 14 years ago
#4955 closed enhancement (fixed)
Feature Request: PicLayer: Specify Opacity and Alpha channel/color — at Version 3
| Reported by: | Owned by: | team | |
|---|---|---|---|
| Priority: | normal | Milestone: | |
| Component: | Core | Version: | latest |
| Keywords: | PicLayer Alpha Channel Color | Cc: |
Description (last modified by )
It would be useful to mark an alpha channel / transparent color in images being referenced in PicLayer.
I'm going through some hand-drawn fire escape maps and have to layer scans on top of each other. It would be useful to have a color picker to identify a transparent color so that overlapping layers can be viewed simultaneously.
The current behavior is for each layer to be opaque to the one below it.
Change History (3)
comment:1 by , 16 years ago
| Component: | Plugin → Plugin piclayer |
|---|
comment:2 by , 15 years ago
comment:3 by , 14 years ago
| Component: | Plugin piclayer → Core |
|---|---|
| Description: | modified (diff) |
| Resolution: | → fixed |
| Status: | new → closed |
this functionality is already in josm core - you can set opacity of the layer in layers list.
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As a workaround until this is implemented, one can use ImageMagick :
convert file1.png -alpha set -channel RGBA -fill none -opaque black file2.png