Hello,
is there a callback which will be executed in a plugin, when I select a DrawingObject in a scene?
And if not, its possible with eventcallback "key_pressed"? And/Or with a ray which hits the drawingobject to identify it?
Best,
vrepUser1
Callback for selecting DrawingObjects
Re: Callback for selecting DrawingObjects
I think drawing objects cannot do the interaction you request.
Try to create a physical object (e.g. a mesh).
What are you trying to do?
Try to create a physical object (e.g. a mesh).
What are you trying to do?
Re: Callback for selecting DrawingObjects
Hi fferri,
I'm representing some entities through line drawing objects and this entities have some specific attributes which I want to display through a cutom gui when you click on it.
I found that the "sim_message_eventcallback_proxsensorselectup" is doing what I requested for. But yes I get a '-1' as handle from this callback message, because it doesnt have a real handle like an object. But perhaps we can work with this, because he recognize the click on the line.
Now how can I get the line handle from the mouse click coordinates, which the callback also provides as information?
According to the callback auxiliary data (handle, mouse coordinates) I thought about this way:
1. handle == -1
2. if 1. is true, then continue with 4.
3. if 1. is false, ignore and return
4. check if there is a line drawing object crosses this mouse coordinate and give me the handle, otherwise return
5. fire custom line callback
Challenge: How can I check if the line is crossing the mouse coordinate in an efficient way? I can go through all generated lines with there start and endpoint, create a analytical geometrical line representation an check for the distance (with a suitable threshold) between the line and the mousecoordinate( e.g. with normalform of an line). I think this should work, but is this the most efficient way to iterate thorugh each line?
Best
vrepUser1
I'm representing some entities through line drawing objects and this entities have some specific attributes which I want to display through a cutom gui when you click on it.
I found that the "sim_message_eventcallback_proxsensorselectup" is doing what I requested for. But yes I get a '-1' as handle from this callback message, because it doesnt have a real handle like an object. But perhaps we can work with this, because he recognize the click on the line.
Now how can I get the line handle from the mouse click coordinates, which the callback also provides as information?
According to the callback auxiliary data (handle, mouse coordinates) I thought about this way:
1. handle == -1
2. if 1. is true, then continue with 4.
3. if 1. is false, ignore and return
4. check if there is a line drawing object crosses this mouse coordinate and give me the handle, otherwise return
5. fire custom line callback
Challenge: How can I check if the line is crossing the mouse coordinate in an efficient way? I can go through all generated lines with there start and endpoint, create a analytical geometrical line representation an check for the distance (with a suitable threshold) between the line and the mousecoordinate( e.g. with normalform of an line). I think this should work, but is this the most efficient way to iterate thorugh each line?
Best
vrepUser1
Re: Callback for selecting DrawingObjects
As I said, use an object such as a shape, a mesh, an octree or a point cloud. Those objects can register mouse clicks.