Reference

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quiver

Arguments:

Description:

Draw specified 2D vector/orientation field on selected images.

Default values:

sampling=5%, factor=1, is_arrow=1, opacity=1, pattern=(undefined)


and color1=0.

Examples of use:

• Example #1

$ gmic 100,100,1,2,'if(c==0,x-w/2,y-h/2)' 500,500,1,3,255 quiver[-1] [-2],10
Command: 100,100,1,2,'if(c==0,x-w/2,y-h/2)' 500,500,1,3,255 quiver[-1] [-2],10
Command: 100,100,1,2,'if(c==0,x-w/2,y-h/2)' 500,500,1,3,255 quiver[-1] [-2],10

• Example #2

$ gmic image.jpg +resize2dy 600 luminance[0] gradient[0] mul[1] -1 reverse[0,1] append[0,1] c blur[0] 8 orientation[0] quiver[1] [0],20,1,1,0.8,255
Command: image.jpg +resize2dy 600 luminance[0] gradient[0] mul[1] -1 reverse[0,1] append[0,1] c blur[0] 8 orientation[0] quiver[1] [0],20,1,1,0.8,255
Command: image.jpg +resize2dy 600 luminance[0] gradient[0] mul[1] -1 reverse[0,1] append[0,1] c blur[0] 8 orientation[0] quiver[1] [0],20,1,1,0.8,255