<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:verdana,helvetica,sans-serif;font-size:10pt">Hi Guys,<br><br>I have a scenario where I am trying to enable annotations on images displayed in a vtkImageActor. When I click on the image, I place a small marker at that point on the image. Now when I click on that marker, it allows me to do other things like enter notes etc.<br><br>Problem is, I use vtkPicker to do the pick, and when I click on the marker it works, problem is I move several pixels AWAY from the marker and when I attempt a pick, I still pick the same marker. It seems the markers have a few pixels around them where if you click, you can still pick the actor. IS there any way to change this? Are there any params in vtkPicker I can set to make sure that the markers should ONLY be picked if the intersect DIRECTLY with the pick point?<br><br>Thanks<br><br>John E<br></div><br>
</body></html>