I got a similar problem as this post:
This Post ;-)
And the difference is i've got multiple objects (actually paths) with different colors. Also, i want to know if i can do this without clipping, 'cause clipping creates an object that cannot be converted to a path, which adds a lot of limitations. Please look at [this post] for further info: So, once again, how can i cut the objects that is out of the model shape （which is colored in purple in the image below）, or we say, cut them at the edge.
So here are those objects with different colors:
And the purple box is the model object,
and i want those circles to disappear at the edge of the purple square, so i can get a square filled with colorful circles!
And i create an example with gimp (which creates bitmaps) and show you what is the thing i exactly i want: