polyDBG.h

/*
 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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 * Software is furnished to do so, subject to the following conditions:
 *
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 * http://oss.sgi.com/projects/FreeB/
 * shall be included in all copies or substantial portions of the Software.
 *
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 */
/*
*/

#ifndef _POLYDBG_H
#define _POLYDBG_H

#include "definitions.h"
#include "directedLine.h"
#include "monoTriangulation.h"

Int DBG_edgesIntersectGen(Real A[2], Real B[2], Real C[2], Real D[2]);
Int DBG_intersectChain(vertexArray* chain, Int start, Int end, Real A[2], Real B[2]);
  

Int DBG_edgesIntersect(directedLine* l1, directedLine* l2);
Int DBG_polygonSelfIntersect(directedLine* poly);
Int DBG_edgeIntersectPoly(directedLine* edge, directedLine* poly);
Int DBG_polygonsIntersect(directedLine* p1, directedLine* p2);
Int DBG_polygonListIntersect(directedLine* pList);

Int DBG_isCounterclockwise(directedLine* poly);
Int DBG_rayIntersectEdge(Real v0[2], Real dx, Real dy, Real v10[2], Real v1[2], Real v2[2]);
Int DBG_pointInsidePoly(Real v[2], directedLine* poly);
Int DBG_enclosingPolygons(directedLine* poly, directedLine* list);
void  DBG_reverse(directedLine* poly);
Int DBG_check(directedLine *polyList);

Int DBG_isConvex(directedLine *poly);
Int DBG_is_U_direction(directedLine *poly);
Int DBG_is_U_monotone(directedLine* poly);

directedLine* DBG_cutIntersectionAllPoly(directedLine* list);
directedLine* DBG_cutIntersectionPoly(directedLine *polygon, int& cutOccur);

sampledLine*  DBG_collectSampledLinesAllPoly(directedLine *polygonList);

void  DBG_collectSampledLinesPoly(directedLine *polygon, sampledLine*& retHead, sampledLine*& retTail);

#endif