BitmapTransform

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Action

Specify the A-F coefficient of the Bitmap Transform Matrix.

 

 

Syntax

BitmapTransform CoefValue , CoefName

 

 

Remarks

CoefValue

Coefficient value of the Bitmap Transform Matrix in signed 8.8 bit fixed-point form. The initial value is 256.

CoefName

Coeeficient name. There are coefficient A-F. You need to specify a capital letter A,B,C,D,E or F.

 

BitmapTransform  A-F coefficients are used to perform bitmap transform functionalities such as scaling, rotation and translation.

 

 

 

Example

' Pseudocode

' A value of 0.5 (128) causes the bitmap appear double width:

BitmapSource 0

BitmapLayout RGB565, 128,64

BitmapTransform 128, A

BitmapSize Nearest, Border, Border

Begin_G Bitmaps

Vertex2II 16,0,0,0

clip0112

' Pseudocode

' A value of 2.0 (512) gives a half-width bitmap:

BitmapSource 0

BitmapLayout RGB565, 128,64

BitmapTransform 512, A

BitmapSize Nearest, Border, Border

Begin_G Bitmaps

Vertex2II 16,0,0,0

clip0113