earthSurfaceCoord.h

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/*******************************************************************************
** Copyright (c) 2023 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/

#pragma once


#include "vrfutil/vrfutilDefines.h"
#include <matrix/vlVector.h>

class DtGeodeticCoord;

DT_DLL_vrfutil bool earthArcsIntersect(const DtVector& a1, const DtVector& a2,
   const DtVector& normalA, const DtVector& middleA,
   const DtVector& b1, const DtVector& b2, 
   const DtVector& normalB, const DtVector& middleB,
   DtVector& intersectionPoint);

DT_DLL_vrfutil bool earthArcsIntersect(const DtVector& a1, const DtVector& a2,
   const DtVector& b1, const DtVector& b2,
   DtVector& intersectionPoint);

DT_DLL_vrfutil bool earthArcsIntersect(const DtGeodeticCoord& a1, const DtGeodeticCoord& a2,
   const DtGeodeticCoord& b1, const DtGeodeticCoord& b2,
   DtGeodeticCoord& intersectionPoint);


DT_DLL_vrfutil bool earthArcIntersectsPath(
   const DtVector& v1, const DtVector& v2, 
   const DtVector& arcNormal, 
   const std::vector<DtVector>& pathVertices,
   const std::vector<DtVector>& pathEdgeNormals,
   const bool isPathClosed,
   DtVector& intersectionPoint,
   const bool debug = false);

DT_DLL_vrfutil bool earthArcIntersectsPath(
   const DtVector& v1, const DtVector& v2,
   const std::vector<DtVector>& pathVertices,
   DtVector& intersectionPoint,
   const bool debug = false);


DT_DLL_vrfutil bool earthPathIntersectsArea(
   const std::vector<DtVector>& pathVertices,
   const std::vector<DtVector>& pathEdgeNormals,
   const std::vector<DtVector>& areaVertices,
   const std::vector<DtVector>& areaEdgeNormals,
   const bool debug = false);


enum DtHemisphereSide
{
   DtPositiveHemisphere,
   DtNegativeHemisphere,
   DtBothHemispheres
};

struct DtHemisphereLimitsStruct
{
   DtHemisphereLimitsStruct()
   {
      myXAxisSide = DtBothHemispheres;
      myYAxisSide = DtBothHemispheres;
      myZAxisSide = DtBothHemispheres;
   }
   DtHemisphereSide myXAxisSide;
   double myXLimit;
   DtHemisphereSide myYAxisSide;
   double myYLimit;
   DtHemisphereSide myZAxisSide;
   double myZLimit;
};
typedef struct DtHemisphereLimitsStruct DtHemisphereLimits;

DT_DLL_vrfutil void setHemisphereLimits(const std::vector<DtVector> points,
   DtHemisphereLimits& limits);
DT_DLL_vrfutil bool pointOverlapsHemisphereLimits (const DtVector& point,
   const DtHemisphereLimits& limits);

DT_DLL_vrfutil bool hemisphereLimitsOverlap(const DtHemisphereLimits& limit1,
   const DtHemisphereLimits& limit2);