public IsoBlock(InitialPt ip, double ar)
{
this.BasePt = ip.Pt;
this.WidthLine = ip.MainAxis;
this.widthVec = WidthLine.UnitTangent;
this.HeightLine = ip.SubAxis;
this.heightVec = HeightLine.UnitTangent;
this.aspectRatio = ar;
}
public InitialPt NextInitialPt()
{
Point3d nextBase = BasePt + heightVec * Height;
InitialPt nextInit = new InitialPt(nextBase, widthVec, heightVec);
nextInit.MainAxis = new Line(nextBase, nextBase + WidthLine.UnitTangent * Width);
nextInit.SubAxis = new Line(nextBase, HeightLine.To);
Line subCandidate = nextInit.SubAxis;
if (subCandidate.Length != 0 && subCandidate.UnitTangent == -heightVec)
{
nextInit.SubAxis = new Line(nextBase, nextBase);
}
return(nextInit);
}
/// <summary>
/// 지정한 벡터를 좌표 평면 기준으로 해서 가장긴 PCX라인들을 축으로 잡습니다.
/// </summary>
public Isothetic DrawStrict(Point3d basePt, Vector3d axis, Vector3d perpAxis)
{
InitialPt strictInit = new InitialPt(basePt, axis, perpAxis);
strictInit.SetMainAxisForStrict(boundary);
List <IsoBlock> maxBlocks = SearchLocalMaxIso(strictInit, ConcaveCount, true);
if (maxBlocks.Count == 0)
{
return(null);
}
Isothetic strictIso = BakeIso(maxBlocks);
return(strictIso);
}
/// <summary>
/// 지정한 라인을 축으로 기준점애서 최대내접 다각형을 그립니다.
/// </summary>
public Isothetic DrawStrict(Point3d basePt, Line longAxis, Line shortAxis)
{
InitialPt superInit = new InitialPt(basePt, longAxis.UnitTangent, shortAxis.UnitTangent);
superInit.MainAxis = longAxis;
superInit.SubAxis = shortAxis;
List <IsoBlock> maxBlocks = SearchLocalMaxIso(superInit, ConcaveCount, true);
if (maxBlocks.Count == 0)
{
return(null);
}
Isothetic strictIso = BakeIso(maxBlocks);
return(strictIso);
}
private List <IsoBlock> SearchLocalMaxIso(InitialPt initial, int concaveCount, bool isInitialPhase)
{
List <IsoBlock> bestBlocksL = new List <IsoBlock>();
double bestAreaL = 0;
foreach (double ratio in aspectRatio)
{
List <IsoBlock> tempBlocks = new List <IsoBlock>();
IsoBlock tempBlock = new IsoBlock(initial, ratio);
tempBlock.Inflate(boundary, boundCrv, minLength, !isInitialPhase);
if (tempBlock.Area <= 0)
{
continue;
}
if (concaveCount == 0)
{
tempBlocks.Add(tempBlock);
}
else
{
tempBlocks.Add(tempBlock);
tempBlocks.AddRange(SearchLocalMaxIso(tempBlock.NextInitialPt(), concaveCount - 1, false));
}
double tempArea = 0;
tempBlocks.ForEach(n => tempArea += n.Area);
if (tempArea > bestAreaL)
{
bestBlocksL = tempBlocks;
bestAreaL = tempArea;
}
}
return(bestBlocksL);
}
