[vtkusers] Question about outputting triangles

[William Segars]

I would like to output triangles created for a model into a raw text file containing the vertices of each triangle.  I tried using the following code I found on this list, but it didn't work.  I got an error saying I accessed memory that wasn't there.  I checked the output up until the error, and it looks like the order of the vertices is wrong (mismatched) anyway.  Does anyone know what I'm doing wrong or have any suggestions.  I appreciate any help you can give.   Thanks!!!


/*Code trying to print out triangles*/
vtkPolyData *mypoly = skinMapper->GetInput();
vtkPoints *mypoints = mypoly->GetPoints();
vtkCellArray *mystrips = mypoly->GetStrips();

int *indices=mystrips->GetPointer();
int numindices=mystrips->GetNumberOfConnectivityEntries(); //Whoa!
int idx=0;

while (idx<numindices){
    int striplen=indices[idx];  //Get length of next strip
    idx++;
    
    for (int jj=0;jj<striplen-2;jj++){
	float A[3],B[3],C[3];  //coordinates of triangle vertices
	mypoints->GetPoint(indices[idx],A);
	mypoints->GetPoint(indices[idx+1],B);
	mypoints->GetPoint(indices[idx+2],C);
                cout <<"\n" << A[0] << " " << A[1] << " " << A[2] << " " << B[0]  << " " << B[1] << " " << B[2] << " " << C[0] << " " << C[1] << " " << C[2];
	idx++;
    }
}
}