BitFill

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BitMaxY Direct Graphics

BitFill abitmap x y

Command to flood fill an area inside a Bitmap with FloodColor, using the current pen color to determine the rim. The advantage over fill is its speed, because aUCBLogo uses OpenGL and I have not found out how to get a pointer to the memory buffer on the graphics card containing the current OpenGL context. If anyone knows how to do this please tell me.

Example: 

to bitfilltest
	clearScreen
	disableLineSmooth
	box
	PenUp setXY -100 -100
	bmp=BitCopy 200 200
	BitFill bmp (BitMaxX bmp)*0.6 (BitMaxY bmp)*0.6
	Home
	setXY -100 -100
	BitPaste bmp
	Home
	PenDown
end

It should draw a filled square.

Example:

Reference:

BitMaxY Direct Graphics