Hi David,<div><br></div><div>A cell with many verts is a vtkPolyVertex. It uses half as much memory as placing the same number of verts in individual cells.</div><div><br></div><div>It would be easy to add an option to vtkPointSource so that it places each point in a different cell, all you would have to do is change the loop that builds the cells. This would be preferable to adding a vtkVertexGlyphFilter, which would add a lot of overhead.</div>
<div><br></div><div> - David</div><div><br><br><div class="gmail_quote">On Mon, Nov 28, 2011 at 9:10 AM, David Doria <span dir="ltr"><<a href="mailto:daviddoria@gmail.com">daviddoria@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">The output of vtkPointSource has the requested number of points and 1<br>
cell. I looked in vtkPointSource.cxx and it has:<br>
<br>
newVerts = vtkCellArray::New();<br>
newVerts->Allocate(newVerts->EstimateSize(1,this->NumberOfPoints));<br>
newVerts->InsertNextCell(this->NumberOfPoints);<br>
<br>
and then goes on to do this in a loop:<br>
<br>
newVerts->InsertCellPoint(newPoints->InsertNextPoint(x));<br>
<br>
My question is which type of cell is this that has no connectivity but<br>
more than 1 point? And why does vtkPointSource not just use a<br>
vtkVertexGlyphFilter to create an output with the name number of<br>
vertices as points?<br>
<br>
David<br>
</blockquote></div><br></div>