Reference

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line

Built-in command

Arguments:

Description:

Draw specified colored line on selected images.

pattern is an hexadecimal number starting with 0x which can be omitted
even if a color is specified.

Default values:

opacity=1, pattern=(undefined) and color1=0.

Example of use:

$ gmic image.jpg repeat 500 line 50%,50%,{u(w)},{u(h)},0.5,${-rgb} done line 0,0,100%,100%,1,0xCCCCCCCC,255 line 100%,0,0,100%,1,0xCCCCCCCC,255

Command: image.jpg repeat 500 line 50%,50%,{u(w)},{u(h)},0.5,${-rgb} done line 0,0,100%,100%,1,0xCCCCCCCC,255 line 100%,0,0,100%,1,0xCCCCCCCC,255