Gets the alpha channel value at the given pixel coordinates.
Namespace:
Grasshopper.Kernel
Assembly:
Grasshopper (in Grasshopper.dll)
Syntax public byte A(
int x,
int y
)
Public Function A (
x As Integer,
y As Integer
) As Byte
Parameters
- x
- Type: SystemInt32
X coordinate (column) of pixel. Must be on image interior. - y
- Type: SystemInt32
Y coordinate (column) of pixel. Must be on image interior.
Return Value
Type:
ByteValue of alpha channel at given pixel or 255 if the alpha channel is not defined.
See Also