Bug report #17622
[Print composer] "Crop to content" when exporting adds a black band when items are not placed on the paper
| Status: | Open | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | Map Composer/Printing | ||
| Affected QGIS version: | 3.5(master) | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 25519 |
Description
Open a print composer
Add items
Add an item out of the paper area
Export to image with the "crop to content" option checked.
You get a black band when out of the paper frame.
Note that when the item placed out of the paper does not have a transparent background, the black band does not cover this item.
History
#1
Updated by Jürgen Fischer over 5 years ago
- Status changed from Open to Feedback
Please test with QGIS 3.4 - QGIS 2.18 reached it's end of life.
#2
Updated by Harrissou Santanna over 5 years ago
- Affected QGIS version changed from 2.18.14 to 3.5(master)
- Status changed from Feedback to Open
- File croppedLayout.png added
Still applies to 3.5.
#3
Updated by Nyall Dawson over 5 years ago
- Status changed from Open to Feedback
It's because you are saving as JPG, which does not support opacity. Try PNG instead.
#4
Updated by Harrissou Santanna about 5 years ago
- Status changed from Feedback to Open
That means that a bigger than paper rendering with "crop to content" is not desirable for some formats. Might be worth mentioning this somewhere.
#5
Updated by Nyall Dawson about 5 years ago
- Status changed from Open to Feedback
So it's a documentation issue?
#6
Updated by Harrissou Santanna about 5 years ago
- Status changed from Feedback to Open
Maybe (see https://github.com/qgis/QGIS-Documentation/pull/3483) but I'm not convinced that people ever read docs and, the layout component is the part of QGIS where no help button is available, not a single one. So for doc visibility...
I thought about a warning message (in bar?) but no idea when to raise it, nor whether it's better.