CmdScale
From MCS Wiki AVR
Contents |
Action
Apply a scale to the current matrix.
Syntax
CmdScale sx, sy
Remarks
|
sx |
x scale factor, in signed 16. 16 bit fixed-point form |
|
sy |
y scale factor, in signed 16. 16 bit fixed-point form |
Example
' Pseudocode ' To zoom a bitmap 2X Begin_G BITMAPS CmdLoadIdentity CmdScale 2 * 65536, 2 * 65536 CmdSetMatrix Vertex2II 68, 28, 0, 0
' To zoom a bitmap 2X around its center Begin_G BITMAPS CmdLoadIdentity CmdTranslate 65536 * 32, 65536 * 32 CmdScale 2 * 65536, 2 * 65536 CmdTranslate 65536 * -32, 65536 * -32 CmdSetMatrix
Vertex2II 68, 28, 0, 0
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