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ImageClearRect
DescriptionClears
the specified rectangle by filling it with the background color
of the current drawing surface.
Function syntaxImageClearRect(name, x, y, width, height)
HistoryColdFusion
8: Added this function.
Parameters
Parameter
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Description
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name
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Required. The ColdFusion image
on which this operation is performed.
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x
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Required. The x coordinate of the rectangle
to clear.
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y
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Required. The y coordinate of the rectangle
to clear.
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width
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Required. The width of the rectangle to
clear.
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height
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Required. The height of the rectangle to
clear.
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Example<!--- This example shows how to set the background color to green and draws four rectangles in that color on the image. --->
<!--- Create a ColdFusion image from an existing JPEG file. --->
<cfimage source="../cfdocs/images/artgallery/jeff05.jpg" name="myImage">
<!--- Set the background color to green. --->
<cfset ImageSetBackgroundColor(myImage,"green")>
<!--- Draw four rectangles in the background color. --->
<cfset ImageClearRect(myImage,10,25,50,50)>
<cfset ImageClearRect(myImage,100,25,50,50)>
<cfset ImageClearRect(myImage,10,100,50,50)>
<cfset ImageClearRect(myImage,100,100,50,50)>
<!--- Save the modified ColdFusion image to a file. --->
<cfimage source="#myImage#" action="write" destination="test_myImage.jpeg" overwrite="yes">
<!--- Display the source image and the new image. --->
<img src="../cfdocs/images/artgallery/jeff05.jpg"/>
<img src="test_myImage.jpeg"/>
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