Bug report #16707
SLD export of "hairline" lines results in a different visual thickness
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | Symbology | ||
| Affected QGIS version: | master | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | fixed/implemented |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 24606 |
Description
Exporting a layer using a "hairline" line width results in a LineSymbolizer with no stroke-width property.
That in turns kicks the SLD default of 1 pixel thickness, which is visually thicker than the one used by QGIS.
By trial and error it seems the proper value would be 0.5 pixels instead.
History
#1
Updated by Guilherme Leao over 7 years ago
Andrea Aime wrote:
Exporting a layer using a "hairline" line width results in a LineSymbolizer with no stroke-width property.
That in turns kicks the SLD default of 1 pixel thickness, which is visually thicker than the one used by QGIS.
By trial and error it seems the proper value would be 0.5 pixels instead.
I have the same problem, in my case it is also changing the line color to Black.
#2
Updated by Eric Xanderson over 7 years ago
This problem seems to affect PDF production also. Hairline (according to Inkscape pdf conversion) creates this style:
```
fill:none;stroke:#808080;stroke-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:10;stroke-dasharray:none
```
When these PDFs are printed, the lines are very ugly, if not absent. When I set the width manually on the style, the issue goes away on outlines.
However, Fill Styles (BDiagonal was tested) doesn't appear modifiable, and presents a problem, making it useless for printable things.
#3
Updated by Andrea Aime about 7 years ago
- Resolution set to fixed/implemented
- Affected QGIS version changed from 2.18.9 to master
- Status changed from Open to Closed
Fixed in QGIS 3.0 for the original ticket report (SLD).
As for PDF, I would suggest to open a separate ticket.