How do I cancel the collision to choose?

[comput]

How do I cancel the collision to choose?

I created a collision to select the code is written so:

scene :: ITriangleSelector * sel = smgr-> createTriangleSelector (sceneNode-> getMesh (), sceneNode);
sceneNode-> setTriangleSelector (sel);
sel-> drop ();

I ask me how to cancel the collision Select and delete the scene node and release the memory?

I tried to write this, but memory is not freed, seems collision choices did not cancel.
node-> getTriangleSelector () -> drop ();
smgr-> addToDeletionQueue (node);
the mesh-> drop ();

May I ask how should I do, thank you!

[CuteAlien]

The first line "node-> getTriangleSelector () -> drop ();" looks wrong (and dangerous - this should crash). The next one would be fine - just add hte node node to the deletion queue. Alternatively calling node->remove() would also work in most cases (happens immediate, which is sometimes good, but dangerous if the node is still needed). addToDeletionQueue is safer and removes it at the end of the frame.
mesh->drop looks wrong again (you should only drop if you created something with a function starting with the name "create").

Maybe you added your selector to a metatriangleselector? In that case you have to removed it there again.

[comput]

Thank you CuteAlien！