Monday, 18 June 2018

qgis - Is it possible to convert Polygon to centerline linestring?


I have a Polygon which I want to convert to centerline linestring.


Polygon IMAGE 1


I used the Vector to convert to Polyline but they are not center line as under:


VECTOR TOOL


enter image description here


IMAGE 2



Polyline created by the above tool is not centerline polyline.


enter image description here IMAGE 3


What I am expecting to get is as under (centerline per road, instead of the lines on the side of the road[Image 3]):


enter image description here


IMAGE 4




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