Math2DFloodFill_4Neighbour(Int32, Int32, FuncInt32, Int32, Boolean, ActionInt32, Int32, FuncInt32, Int32, Boolean) Method

public static void FloodFill_4Neighbour(
	int xStart,
	int yStart,
	Func<int, int, bool> IsPixelToBeFilled,
	Action<int, int> SetPixelToNewValue,
	Func<int, int, bool> IsPixelCoordinateValid
)

Parameters

xStart  Int32

The start pixel's x coordinate.

yStart  Int32

The start pixel's x coordinate.

IsPixelToBeFilled  FuncInt32, Int32, Boolean

Function that evaluated if the pixel fulfills a condition so that it should be set to a new value. Args are the x and y pixel coordinates, the return value is true if the pixel should be set to a new value.

SetPixelToNewValue  ActionInt32, Int32

Action to set the pixel to a new value. Args are the x and y coordinates of the pixel. Since the pixel's value is never tested again, there is no need to really set the pixel's value. Thus, this action can also be used to count the pixels that fulfill the condition given in IsPixelToBeFilled, etc.

IsPixelCoordinateValid  FuncInt32, Int32, Boolean

Tests the pixel coordinate to find out if it is in a valid range. Params are x, y of the pixel coordinate. The return value is true if the coordinate is valid, i.e. the pixel should be processed; otherwise, it is false.

Reference