|
Hi osgers, I have to program this functionality: dragging the
scene with the mouse, drawing a rectangle (no problem with this) and pick all
the nodes under a branch that have fallen “in” the rectangle
(similar to multiselection of files with mouse with Windows Explorer). And I have thought this maybe not so rare, so someone
out there may have it implemented and open-sourced… you know: before you
do something, make sure it’s not done yet. If not, any suggestions about the best way to code
it? I’m thinking about “projecting” the 2D rectangle to an
infinite rectangular prism, a Visitor traversing the graph and discarding the
branches with the bounding sphere completely out the prism. Thanks in advance Ignacio Garcia |
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