Image Color Map: _getColor

Image Color Map: _getColor

Returns the specific red, green, and blue values assigned to an index in a color map

Syntax
Details
Example

Syntax

CALL SEND (object-id, '_getColor', index, red, green, blue);

Argument Type Description

index
N specifies an integer that identifies the color-map index

0 [le] index < number of color-map entries

red
N returns the red value for the index

green
N returns the green value for the index

blue
N returns the blue value for the index

Argument	Type	Description
index	N	specifies an integer that identifies the color-map index
		0 index < number of color-map entries
red	N	returns the red value for the index
green	N	returns the green value for the index
blue	N	returns the blue value for the index

Details

If the index is outside the range of color map colors, an error occurs. See _onError in this class for more information about handling error conditions.

Example

This example returns the colors for index 10:

call send(cmap_id,'_getColor',10,red,
          green,blue);

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