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Create polygon with list of points
Posted: Wed Jul 08, 2015 4:00 pm
by oscariglesias
Hi,
i wish to know if there is a way to create a 2D polygon with a ordered point cloud?
I mean i would like to define a polyline with the ordered points i have in a ascii file and then create the polygon linking this points.
Thank for your attention.
Óscar Iglesias
Re: Create polygon with list of points
Posted: Thu Jul 09, 2015 8:25 pm
by daniel
Well, if your polygon is convex, then you can simply open the (border) points as a point cloud and use 'Delaunay 2.5D' to create the polygon (mesh).
Re: Create polygon with list of points
Posted: Fri Jul 10, 2015 2:18 pm
by oscariglesias
Tnx for answering daniel, but that´s the problem. The polygon i am working with it has not to be convex, so i don´t think that the triangulation is the best solution.
Anyways i am going to try it.
Thank you.
Óscar
Re: Create polygon with list of points
Posted: Tue Jun 05, 2018 2:25 pm
by pwhelley
If make a polyline in CC then open it in a GIS (QGIS for example) then convert it to a shape file (.shp) it will be flat.
Re: Create polygon with list of points
Posted: Tue Jun 05, 2018 7:00 pm
by daniel
Are you converting the polyline to a shape file in CloudCompare or in QGis? (not sure to understand).
And how do you create your polyline?
CC will export a 3D polyline as a SHP_POLYLINE_Z (i.e. 3D 'Shape' polyline) and as a SHP_POLYLINE otherwise (2D).