POINTVISIBLEINFO Struct Reference

Public Member Functions
POINTVISIBLEINFO &	operator= (const POINTVISIBLEINFO &r)
	POINTVISIBLEINFO (const POINTVISIBLEINFO &r)

Public Attributes
unsigned int	color
signed int	opacity
signed int	screenX
signed int	screenY

Detailed Description

Structure for returning info about point visibility. Used by GetPointVisibility().

Member Data Documentation

unsigned int POINTVISIBLEINFO::color

Color accumulated while traversing the line from the point to the screen.

• Red – lowest byte.
• Green – 2nd byte.
• Blue – 3rd byte.
• 4th byte – Reserved for future use.

signed int POINTVISIBLEINFO::opacity

The opacity of the specified point from the current view angle. This is a number from 0-4095 where 0=0% and 4095=100%.

signed int POINTVISIBLEINFO::screenX

The offset from the left side of the image to the specified point. The positive direciton is to the right.

signed int POINTVISIBLEINFO::screenY

The offset from the top of the image to the specified point. The positive direction is down.