VB drawing pulled problem

There are a lot of circle, but the group, drag a group inside the circle can be dragged along.
What controls and methods.?
There is a special attention to the place, is round and round between the tangent, if a group in the round in a single control, two circle tangent recent group between the how to get not only show a part? For example, if you use the frame, which will be covered part of the.

Started by Caesar at February 03, 2016 - 5:22 PM

This involves "layer" concept.

Posted by Clifford at February 10, 2016 - 5:46 PM

Hope guidance, , , ,

Posted by Caesar at January 02, 2017 - 4:11 PM

This is somewhat complicated.

First of all to all the graphics are treated as objects, and then define the combination model, is what you said above together drag "".

To drag the mouse behavior in detection, redraw all objects, but the dragged object or group of objects to drag the starting point for the quasi changing coordinates.

To write code is data management more complex, the other is better

Posted by Booth at January 05, 2017 - 3:32 PM

I went to see a bit of computer graphics, the graphics generation display principle clear, what is not the problem.

If the method is to use multiple controls stacked to accumulate, will see control settings and transparent manner.

Posted by Clifford at January 15, 2017 - 5:05 PM