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# im.ramp

Function: im.ramp( | start, end)

Returns a 256 character linear ramp, where the first character has the value start and the last character has the value end. Such a ramp can be used as a map argument of im.Map .

## Example

    init:
        image cyan green = im.Map("cyan.png", bmap=im.ramp(0, 0))

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