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Kivy: Interactive Applications in Python by Roberto Ulloa

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Comic creator – PushMatrix and PopMatrix

It is time to insert a few graphics to the project we started in the Chapter 1, GUI Basics: Building an Interface. Previously, we have insisted on the following two important things regarding the coordinate space:

  • The coordinate space is not restricted to any position or size. It usually has its origin in the bottom-left corner of the screen. We avoided this in the last example by using RelativeLayout, which internally performs a translation to the pos property of the Widget.
  • Once the coordinate space context is transformed by any instruction, it stays like that until we specify something different. RelativeLayout also addresses this problem with a two context instructions that we are going to study in this ...

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