AutoCAD .NET :: Centroid Of Closed Polyline2D
Apr 30, 2012I would like to place text in centre of each closed polyline2d as a batch.
To do this I need to find out the the centroid of closed polyline2d.
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View 2 Replies View RelatedAutoCAD 2010 :: MASSPROP Centroid Algorithum
May 29, 2012What algorithum is used to determine the centroid when the MASSPROP command is used?
Example, a 3D polyhedra defined by vertices:
2466.0975 2739.0486 2185.3153
0 2013.2174 0
3146.7943 1560.0472 2185.3153
1785.4008 1560.0472 172.0979
3146.7943 1560.0472 172.0979
2466.0975 2739.0486 23.2646
MASSPROP returns the centroid (2466.098, 1957.774, 1153.603).
I have used a second method to determine the centroid writen in Matlab code
>> P = [2466.0975 2739.0486 2185.3153
0 2013.2174 0
3146.7943 1560.0472 2185.3153
1785.4008 1560.0472 172.0979
3146.7943 1560.0472 172.0979
[Code] .....
This uses 'The Quickhull Algorithm for Convex Hulls' and returns the centroid (2095.20268741281, 2084.74098328248, 837.825401397925). There is a massive difference.
I have attached the example polyhedra.
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I've attached the file I'm working on. The polyline in question is the green outline on the object on the right.
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Dim pso As PromptStringOptions = New PromptStringOptions("Enter name of block to create reference: ")
Dim pr As PromptResult = myEd.GetString(pso)
Dim blkName As String = pr.StringResult
'If (!bt.Has(blkName)) Then
[Code] ....
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public void AddVertexOnPolyline(Point3d addPoint,Polyline editPolyline) { Document acDoc = Autodesk.AutoCAD.ApplicationServices.Core.Application.DocumentManager.MdiActiveDocu
[Code].....
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Dim t As Inventor.TransientGeometry
Set t = ThisApplication.TransientGeometry
Dim c As Inventor.ComponentDefinition
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[Code].....
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