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user 5850
A set of ordered co-ordinates that represent the shape of geographic features too narrow to be displayed as an area at the given scale (contours, street centrelines, or streams), or linear features with no area (county boundary lines)
5
votes
Get a point on a polyline from end points given distance along poly line
Solving a linear reference problem like this without importing any modules is beyond my range..
I have used Shapely(python package for manipulation and analysis of 2D geospatial geometries. And it is …
- 7,290
13
votes
Moving points onto lines (~neighborhood)
Posted a code snippet(tested in python console) that doest the below
Use QgsSpatialIndex to find the nearest line feature to a point
Find the nearest point on this line to the point. … nearestIterator.nextFeature(nearFeature)
shplyLineString = shapely.wkt.loads(nearFeature.geometry().exportToWkt())
shplyPoint = shapely.wkt.loads(ptGeom.exportToWkt())
#nearest distance from point to line …
- 7,290