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GetPolyPt3D.md

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GetPolyPt3D

Description

Procedure GetPolyPt3D returns the coordinates of the specified vertex of the referenced mesh, 3D polygon, or NURBS curve object.

Error checking for valid index values must be provided by the programmer.

PROCEDURE GetPolyPt3D(
				objectHd     : HANDLE;
				index        : INTEGER;
				VAR pX,pY,pZ : REAL);
def vs.GetPolyPt3D(objectHd, index):
    return p

Parameters

Name Type Description
objectHd HANDLE Handle to 3D mesh or polygon.
index INTEGER Index of vertex (range of 0 to n-1).
p REAL Returns 3D coordinates of vertex.

Remarks

Conrad Preen, 2014/10/12: Save you the trip to VectorLab, index is zero-based and points returned w.r.t. internal origin.

Gerard Jonker, 2007/1/8: Please have a look at my [http://www.vectorlab.info/index.php?title=Absolute_Origin comments on the VectorLab] regarding this function, concerning index and origin.

_c_, 2010/09/12: Warning: From VW13 this function returns the z-value adding the layer Z. So, for example, by a layer z of 10, if you have a vertex whose z is 1, the routine will return 11.

Examples

VectorScript

FOR i := 0 to (GetVertNum(thePoly) - 1) DO
    GetPolyPt3D(thePoly, i, vertX, vertY, vertZ);

Python

def Example():
    obj = vs.FSActLayer()
    for vertexNum in range(1, vs.GetVertNum(obj)):
        ptVt = vs.GetPolyPt3D(obj, vertexNum)
        vs.TextOrigin(ptVt[0], ptVt[1], ptVt[2])
        vs.CreateText(vs.Concat('vNum: ', vertexNum))
Example()

See Also

VS Functions:

Version

Availability: from MiniCAD 7.0

Category