ScaleImage

ScaleImage

Command Index · BlitzBasic · Images

ScaleImage:Void image:Int32, xscale:Float32, yscale:Float32

Parameter	Mode	Type	Default	Description
image	In	Int32	required	The image.
xscale	In	Float32	required	Horizontal factor.
yscale	In	Float32	required	Vertical factor.

Description

Scales every frame of an image by a factor: 2 doubles its size, 0.5 halves it, and a negative factor flips the picture, which then extends to the left or up from the handle. The change is permanent, so scale a copy when the original is still needed.

Differences

• Scaling uses the same smooth filter as TFormImage, which TFormFilter can turn off.

Examples

Graphics 320, 240, 0, 2
SetBuffer BackBuffer()
Local img = CreateImage(32, 32)
SetBuffer ImageBuffer(img)
Color 255, 160, 0
Rect 0, 0, 32, 32, 1
Color 0, 0, 0
Rect 0, 16, 16, 16, 1
SetBuffer BackBuffer()
Local big = CopyImage(img)
ScaleImage big, 3, 3
Local flip_x = CopyImage(img)
ScaleImage flip_x, -2, 2
Cls
DrawImage img, 20, 100
DrawImage big, 80, 70
DrawImage flip_x, 270, 100
Flip
WaitKey

Media

Related Commands

CopyImage, CreateImage, DrawImage, FreeImage, GrabImage, HandleImage, LoadAnimImage, LoadImage

Command Index · BlitzBasic · Images