[Closed] getVert Get weird Coordinates

Aug 12, 2016 5:00 pm

Hi all

I’m C# DLL to get mesh point coordinates.

IPoint3  point = myMesh.GetVert( vertid );

but I get

X: 6.16883d0, Y:1.90735d-006, Z:4.44051d0

But in 3ds MAX (and maxscript) the point is [9.87013,-4.41558,5.74244 ]

When do a debug in Visual Studio the myMesh.GetVert get the wrong coordinates… the vertID is correct

What i’m missing??

Thanks

4 Replies

guruware

Aug 12, 2016 5:00 pm

sure about that?
MXS is using 1-based indices
SDK is using 0-based indices

mariomorais

Aug 12, 2016 5:00 pm

You right VertID comes from maxscript change it but is the same get weird coordinates.


IPoint3  point = myMesh.GetVert( vertid-1 );

Maybe need to multiply with node Transform Matrix?
Who do that in C#?

mariomorais

Aug 12, 2016 5:00 pm

I do some tests and the Getvert return coordinates relative to center of object.

How to return world position?

mariomorais

Aug 12, 2016 5:00 pm

Ok get it to work!
Need to multiply with node Matrix.

 
....
IMatrix3  nodeTM= myNode.GetNodeTM(0,null);
IPoint3  point = myMesh.GetVert(vertID); 
IPoint3 pointTM = nodeTM.PointTransform(point); //World Position point