Questions tagged [polygon]
On a map, a closed shape defined by a connected sequence of x,y coordinate pairs, where the first and last coordinate pair are the same and all other pairs are unique.
2 questions from the last 30 days
4
votes
1
answer
175
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Numbering polygons in clockwise-ish way in QGIS
I'm using QGIS 3.40.12 and I have a shapefile with polygons, each of them represents a plot and I need to give them a number, an "ID". But the spatial order of the numbers should have a from ...
- 63
4
votes
1
answer
77
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Getting Geodesic Area of GDAL polygon in C
I am using GDAL to create polygons for a GeoJSON:
OGRFeatureH hFeature = OGR_F_Create(OGR_L_GetLayerDefn(hOGRLayer));
OGRGeometryH hLinearRing = OGR_G_CreateGeometry(wkbLinearRing);
OGR_G_SetPoint_2D(...
- 181