/**********************************************************************
* render_outline
*
* Create a list of line segments that represent the expanded outline
* that was supplied as input.
**********************************************************************/
void render_outline(void *window,
TESSLINE *outline,
C_COL color) {
/* No outline */
if (!outline)
return;
/* Draw Compact outline */
if (outline->loop)
render_edgepts (window, outline->loop, color);
/* Add on next outlines */
render_outline (window, outline->next, color);
}
/**********************************************************************
* display_edgepts
*
* Macro to display edge points in a window.
**********************************************************************/
void display_edgepts(LIST outlines) {
void *window;
/* Set up window */
if (edge_window == NULL) {
edge_window = c_create_window ("Edges", 750, 150,
400, 128, -400.0, 400.0, 0.0, 256.0);
}
else {
c_clear_window(edge_window);
}
/* Render the outlines */
window = edge_window;
/* Reclaim old memory */
iterate(outlines) {
render_edgepts (window, (EDGEPT *) first_node (outlines), White);
}
}