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Results tagged with qgis
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user 98664
QGIS is a cross-platform GIS application licensed under the GNU General Public License.
3
votes
1
answer
113
views
Vizualise different projections of a vector using QGIS
How to vizualise different map projection for a vector layer at once with QGIS, then export the two forms as Geographic WGS84
e.g. …
- 287
0
votes
0
answers
40
views
Wrong direction results from r.horizon, raster mode in QGIS?
I perform the algorithm r.horizon, raster mode using QGIS 3.28.15, I used always to check the flag -c and set it to true, because I am interested in compass direction clockwise (so North is at 0 degrees … , East 90 degrees and so on) until I noticed something not expected in shadow when visualizing the results in QGIS, so I took an small DEM containing an Island for test purpose then I performed r.horizon …
- 287
1
vote
1
answer
49
views
Count values greater equal to sthg from multiple rasters at once pixelwise in QGIS
Is there such algorithm or tool to do it in QGIS? I am using QGIS 3.28. …
- 287
2
votes
1
answer
74
views
Problem running QGIS r.horizon command in PowerShell
I would to run this command in images below via CMD also without opening QGIS GUI on Windows 10
I added "C:\Program Files\QGIS 3.28.2\bin\qgis_process-qgis.bat" to PATH then run my command into QGIS to … be sure that everything is okay, the algorithm run until end with expected result without problems, I copied the command from QGIS then closed QGIS and paste that copied command in PowerShell them it …
- 287
4
votes
2
answers
2k
views
Calculate area of ellipsoidal polygon with QGIS
Can one calculate the area of geometry in QGIS so as ellipsoidal polygons (in order to get the most accurate area), and not with $area that gives planar area after a equal-area projection of a geometry …
- 287
1
vote
1
answer
1k
views
Change multiple polygons' area from square degrees to square meter in attribute table with QGIS
I imported an ESRI personal geodatabase vector file (.mdb file) into QGIS, when I open the attribute table, it seems the the shape_area unit is in square degree. …
- 287
2
votes
1
answer
155
views
Convert .mdb file shape area and length units to meter with Qgis
I have a personal geodatabase file (.mdb file), I open it with QGIS Las Palmas on windows 7. …
- 287
1
vote
1
answer
119
views
Best orientation line bearing of a vector polygon in QGIS to fit the best
Let say, I have a country vector layer like Lebanon in this example, for us as humans we can easly see that the country extends the best not from north to south like Chile, or from east to west like T …
- 287
1
vote
1
answer
2k
views
How to open .hgts file from NASADEM data
data type: 4-byte real
hgt_srtmOnly contains heights relative to the WGS84 ellipsoid
hgts meters (with value set to -32768 for a void in hgt_srtmOnly hgts
files)
I tried to open it with Qgis …
- 287