Opened 13 years ago
Last modified 11 years ago
#1373 new defect
Wrong stereographic grid tracing and labeling in stereographic projection
| Reported by: | alf | Owned by: | |
|---|---|---|---|
| Priority: | normal | Milestone: | 6.5.0 |
| Component: | Display | Version: | svn-develbranch6 |
| Keywords: | d.grid | Cc: | |
| CPU: | Unspecified | Platform: | All |
Description
When using stereographic projection set, for example, at the south pole, d.grid's geographical output is messy: grids are not completely traced and the labels accumulates at the corners at various angles.
Find attached a screenshot of the output for a 1000x1000 km area centered at the south pole, and a sample location (to reproduce the screenshot, use: d.grid -g size=10).
Regards,
Alessandro Frigeri
Attachments (2)
Change History (4)
by , 13 years ago
| Attachment: | stereo_geo-grid.png added |
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by , 13 years ago
| Attachment: | earthsouth_grid.tar.gz added |
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Example location in stereographic projection - Earth's south pole
comment:1 by , 13 years ago
| Keywords: | d.grid added |
|---|---|
| Milestone: | → 6.5.0 |
known bug.
for the stereographic images on the raster screenshots page (1,2) the work-around I used was to use v.mkgrid in a lat/lon location which I then pulled into the stereographic projection with v.proj.
(1) http://grass.osgeo.org/screenshots/images/day_on_earth_N.png (2) http://grass.osgeo.org/screenshots/images/day_on_earth_S.png
Hamish
comment:2 by , 11 years ago
hopefully the label text is a little better now. grid lines around anomalies still need work.
Geogrid and labels output, for stereographic projection centered at Earth's south pole