There are many drawable objects on my display. I would like my program to call a function when one of the polygons is selected.
How to make a polygon selectable and associate a function to it? Obviously I am new here.
Thanks.
There are many drawable objects on my display. I would like my program to call a function when one of the polygons is selected.
How to make a polygon selectable and associate a function to it? Obviously I am new here.
Thanks.
For selection, have a look at OpenGL’s selection mode.
For calling a function based on selection, it depends on language. Since you didn’t mention any language I’m going to assume C++. You can map OpenGL’s selection names to a function pointer using map or vector.
Here’s a link for selection (among other things).