POINTVISIBLEINFO Struct Reference

List of all members.

Public Member Functions
POINTVISIBLEINFO &	operator= (const POINTVISIBLEINFO &r)
	POINTVISIBLEINFO (const POINTVISIBLEINFO &r)
Public Attributes
h_uint32	color
h_int32	opacity
h_int32	screenX
h_int32	screenY

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Detailed Description

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

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Member Data Documentation

h_uint32 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.

h_int32 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%.

h_int32 POINTVISIBLEINFO::screenX

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

h_int32 POINTVISIBLEINFO::screenY

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