draw_world_line

SilverScreenAPI

void draw_world_line_rgb ( SS_XYZ *p1, SS_XYZ *p2, RGB rgb, int mode )

SS_XYZ *p1; // world point 1

SS_XYZ *p2; // world point 2

RGB rgb; // rgb to use

int mode; // width and inverse control

Synopsis

#include "silver.h"

The draw_world_line_rgb function draws a line on the screen in the specified color, between the two world points specified by p1 and p2 .

Parameters

p1 and p2 are the addresses of two SS_XYZs, representing two points in world space. rgb is an rgb color number as constructed by MAKE_RGB. mode may have the following flags or'ed in (as defined in silver.h):

Name	Value	Meaning
COLOR_WIDE	0x4000	draw the specified line in wide line
COLOR_INVERSE	0x2000	draw the specified line by xor'ing the screen with a line of the specified color and width, and save the line information away, so that it may be cleared by a subsequent call to refresh_lines .

Return Value

none

Comments

The 2D projection of the 3D line between the points may not lie within the bounds of the current window.