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<font size="-1"><font face="Helvetica, Arial, sans-serif">Hi.<br>
<br>
I have toyed around in this matter and can narrow the problem down.<br>
<br>
I'm feeding the cell locator with <b>cellCenters</b> in hope these are
the points the cell locator will look at if a comparison needs to be
done:<br>
<br>
<font face="Courier New, Courier, monospace">vtkCellLocator
*cellLocator = vtkCellLocator::New();<br>
cellLocator->SetDataSet(this->cellCenters->GetOutput());</font><br>
<br>
The point I'm comparing from is a (dynamic) point which is an <b>implicit
plane representations origin</b>.<br>
<font face="Courier New, Courier, monospace"><br>
double planePoint[3];<br>
planePoint[0] = rep->GetOrigin()[0];<br>
planePoint[1] = rep->GetOrigin()[1];<br>
planePoint[2] = rep->GetOrigin()[2];</font><br>
<br>
Than I pass this point to the FindClosestPoint()-function in hope the
closest point is written to the closestPoint variable.<br>
<font face="Courier New, Courier, monospace"><br>
double closestPoint[3];<br>
vtkIdType cellId;<br>
int subId;<br>
double dist;<br>
cellLocator->FindClosestPoint(planePoint,closestPoint,cellId,subId,dist);<br>
<br>
cout << "closestPoint: " << closestPoint[0] << " "
<< closestPoint[1] << " " << closestPoint[2] <<
"\n" << endl;</font><br>
<br>
This code crashes at the<b> if-statement</b> at line 989 of
vtkCellLocator.cxx which contains this function:<br>
<font face="Courier New, Courier, monospace"><br>
// If at this bucket, just place into list<br>
//<br>
if ( level == 0 ) <br>
{<br>
if (this->Tree[leafStart + ijk[0] + ijk[1]*this->NumberOfDivisions<br>
+ ijk[2]*numberOfBucketsPerPlane])<br>
{<br>
this->Buckets->InsertNextPoint(ijk);<br>
}<br>
return;<br>
}</font><br>
<br>
So, what may be wrong?<br>
<br>
</font></font><br>
Am 19.03.2010 10:49, schrieb Sebastian Gatzka:
<blockquote cite="mid:4BA348B4.7040809@stud.tu-darmstadt.de" type="cite">
<meta http-equiv="content-type"
content="text/html; charset=ISO-8859-15">
<font face="Helvetica, Arial, sans-serif" size="-1">Hello World.<br>
<br>
I'm currently working with the vtkCellLocator to locate the closest
cell center from a specific point (which I set).<br>
I had a look at the example from the documentation, but I'm not sure
how to handle the<small> </small></font><font
face="Helvetica, Arial, sans-serif"><small>FindClosestPoint function.<br>
<br>
Can anyone explain?<br>
<br>
Thank you.<br>
Sebastian</small></font><br>
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