Hi David,<br /><br />
I would be glad to see a detailed article about point selection e.g. in an unstructured grid.<br />
The article should focus on:<br />
<ul>
<li>The differences between all the available ways to pick one point or multiple points at once and when to use vtkPointPicker, vtkRenderedAreaPicker, vtkAreaPicker, vtkHardwareSelector, ...</li>
<li>How to set this magic tolerance value (default value = 0.01), maybe being automatically set, based on other values (which one I can only assume at the moment)</li>
<li>Which role nearPlane and farPlane distance is playing</li>
<li>How only visible point can be picked (It happened to me sometime, that hidden points are selected as well, like doing a frustum selection, although not performing a frustum selection)</li>
<li>etc... ;-)</li>
</ul>
<br /><br />
with kind regards<br />
Jochen
        
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