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This chapter is from the book

This chapter is from the book

In Brief

  • To draw a line in a window, you must call the GDI function MoveToEx() to position the starting point of the line and then call the function LineTo() to draw the line.

  • Most objects in computer graphics are defined using the Cartesian coordinate system.

  • You define graphical objects in the Cartesian coordinate system by specifying the coordinates of their vertices.

  • Shape transformations include translation, scaling, and rotation.

  • Translation, scaling, and rotation can all be performed on a single shape just by using matrix math.

  • Using matrices in graphics programming enables you to represent any number of transformations with a single matrix.

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