// 法線の代表値を求める
//public static CadVertex RepresentativeNormal(VertexList points)
//{
// if (points.Count < 3)
// {
// return CadVertex.Zero;
// }
// int idx = FindMaxDistantPointIndex(points[0], points);
// int idxA = idx - 1;
// int idxB = idx + 1;
// if (idxA < 0)
// {
// idxA = points.Count - 1;
// }
// if (idxB >= points.Count)
// {
// idxB = idxB - points.Count;
// }
// CadVertex normal = CadMath.Normal(points[idx], points[idxA], points[idxB]);
// return normal;
//}
public static Vector3d TypicalNormal(VertexList points)
{
if (points.Count < 3)
{
return(Vector3d.Zero);
}
int idx = FindMaxDistantPointIndex(points[0], points);
int idxA = idx - 1;
int idxB = idx + 1;
if (idxA < 0)
{
idxA = points.Count - 1;
}
if (idxB >= points.Count)
{
idxB = idxB - points.Count;
}
Vector3d normal = CadMath.Normal(points[idx].vector, points[idxA].vector, points[idxB].vector);
return(normal);
}
private void drawCircle(DrawContext dc, DrawPen pen)
{
if (PointList.Count == 0)
{
return;
}
if (PointList.Count == 1)
{
dc.Drawing.DrawCross(pen, PointList[0].vector, 2);
if (PointList[0].Selected)
{
dc.Drawing.DrawSelectedPoint(PointList[0].vector, dc.GetPen(DrawTools.PEN_SELECT_POINT));
}
return;
}
Vector3d normal = CadMath.Normal(PointList[0].vector, PointList[2].vector, PointList[1].vector);
CircleExpander.Draw(PointList[0], PointList[1], PointList[2], 32, dc, pen);
double size = dc.DevSizeToWoldSize(4);
dc.Drawing.DrawCross(pen, PointList[0].vector, size);
}
public void RotateEyePoint(Vector2 prev, Vector2 current)
{
Vector2 d = current - prev;
double ry = (d.X / 10.0) * (Math.PI / 20);
double rx = (d.Y / 10.0) * (Math.PI / 20);
CadQuaternion q;
CadQuaternion r;
CadQuaternion qp;
q = CadQuaternion.RotateQuaternion(Vector3d.UnitY, ry);
r = q.Conjugate();
qp = CadQuaternion.FromVector(mEye);
qp = r * qp;
qp = qp * q;
mEye = qp.ToVector3d();
qp = CadQuaternion.FromVector(mUpVector);
qp = r * qp;
qp = qp * q;
mUpVector = qp.ToVector3d();
Vector3d ev = mLookAt - mEye;
Vector3d a = new Vector3d(ev);
Vector3d b = new Vector3d(mUpVector);
Vector3d axis = CadMath.Normal(a, b);
if (!axis.IsZero())
{
q = CadQuaternion.RotateQuaternion(axis, rx);
r = q.Conjugate();
qp = CadQuaternion.FromVector(mEye);
qp = r * qp;
qp = qp * q;
mEye = qp.ToVector3d();
qp = CadQuaternion.FromVector(mUpVector);
qp = r * qp;
qp = qp * q;
mUpVector = qp.ToVector3d();
}
CalcViewMatrix();
CalcViewDir();
CalcProjectionZW();
}
public void PanCamera(DrawContext dc, Vector2 prev, Vector2 current)
{
Vector2 d = current - prev;
double rx = d.X * (Math.PI / 1000);
double ry = d.Y * (Math.PI / 1000);
CadQuaternion q;
CadQuaternion r;
CadQuaternion qp;
Vector3d lookv = dc.LookAt - dc.Eye;
Vector3d upv = dc.UpVector;
q = CadQuaternion.RotateQuaternion(upv, rx);
r = q.Conjugate();
qp = CadQuaternion.FromVector(lookv);
qp = r * qp;
qp = qp * q;
lookv = qp.ToVector3d();
Vector3d ev = dc.LookAt - dc.Eye;
Vector3d a = new Vector3d(ev);
Vector3d b = new Vector3d(upv);
Vector3d axis = CadMath.Normal(a, b);
if (!axis.IsZero())
{
q = CadQuaternion.RotateQuaternion(axis, ry);
r = q.Conjugate();
qp = CadQuaternion.FromVector(lookv);
qp = r * qp;
qp = qp * q;
lookv = qp.ToVector3d();
qp = CadQuaternion.FromVector(upv);
qp = r * qp;
qp = qp * q;
upv = qp.ToVector3d();
}
dc.SetCamera(dc.Eye, lookv + dc.Eye, upv);
}
public static void ForEachSegs(
CadVertex cp, CadVertex pa, CadVertex pb,
int splitCnt,
Action <CadVertex, CadVertex> action)
{
CadVertex va = pa - cp;
CadVertex vb = pb - cp;
if (va.Norm() < 0.01)
{
return;
}
double dt = (2.0 * Math.PI) / (double)splitCnt;
int div = splitCnt;
Vector3d normal = CadMath.Normal(va.vector, vb.vector);
CadQuaternion q = CadQuaternion.RotateQuaternion(normal, dt);
CadQuaternion r = q.Conjugate();
CadVertex p = va;
CadVertex tp1 = pa;
CadVertex tp2 = pa;
int i = 0;
for (; i < div - 1; i++)
{
CadQuaternion qp = CadQuaternion.FromPoint(p.vector);
qp = r * qp;
qp = qp * q;
p.vector = qp.ToPoint();
tp2 = p + cp;
action(tp1, tp2);
tp1 = tp2;
}
action(tp1, pa);
}
public static void Draw(
CadVertex cp, CadVertex pa, CadVertex pb,
int splitCnt,
DrawContext dc, DrawPen pen)
{
CadVertex va = pa - cp;
CadVertex vb = pb - cp;
if (va.Norm() < 0.01)
{
return;
}
double dt = (2.0 * Math.PI) / (double)splitCnt;
int div = splitCnt;
Vector3d normal = CadMath.Normal(va.vector, vb.vector);
CadQuaternion q = CadQuaternion.RotateQuaternion(normal, dt);
CadQuaternion r = q.Conjugate();
CadVertex p = va;
CadVertex tp1 = pa;
CadVertex tp2 = pa;
int i = 0;
for (; i < div - 1; i++)
{
CadQuaternion qp = CadQuaternion.FromPoint(p.vector);
qp = r * qp;
qp = qp * q;
p.vector = qp.ToPoint();
tp2 = p + cp;
dc.Drawing.DrawLine(pen, tp1.vector, tp2.vector);
tp1 = tp2;
}
dc.Drawing.DrawLine(pen, tp1.vector, pa.vector);
}
public override void MoveSelectedPointsFromStored(DrawContext dc, Vector3d delta)
{
//base.MoveSelectedPoints(dc, delta);
if (Locked)
{
return;
}
Vector3d d;
if (!IsSelectedAll() && mPointList.Count > 2 && RestrictionByNormal)
{
Vector3d vdir = dc.ViewDir;
Vector3d a = delta;
Vector3d b = delta + vdir;
d = CadMath.CrossPlane(a, b, StoreList[0].vector, Normal);
if (!d.IsValid())
{
Vector3d nvNormal = CadMath.Normal(Normal, vdir);
double ip = CadMath.InnerProduct(nvNormal, delta);
d = nvNormal * ip;
}
}
else
{
d = delta;
}
FigUtil.MoveSelectedPointsFromStored(this, dc, d);
mChildList.ForEach(c =>
{
c.MoveSelectedPointsFromStored(dc, delta);
});
}
public static void DrawArrow(
Action <DrawPen, Vector3d, Vector3d> DrawLine,
DrawPen pen,
Vector3d pt0,
Vector3d pt1,
ArrowTypes type,
ArrowPos pos,
double len,
double width)
{
DrawLine(pen, pt0, pt1);
Vector3d d = pt1 - pt0;
double dl = d.Length;
if (dl < 0.00001)
{
return;
}
Vector3d tmp = new Vector3d(dl, 0, 0);
double angle = Vector3d.CalculateAngle(tmp, d);
Vector3d normal = CadMath.CrossProduct(tmp, d); // 回転軸
if (normal.Length < 0.0001)
{
normal = new Vector3d(0, 0, 1);
}
else
{
normal = normal.UnitVector();
normal = CadMath.Normal(tmp, d);
}
CadQuaternion q = CadQuaternion.RotateQuaternion(normal, -angle);
CadQuaternion r = q.Conjugate();
ArrowHead a;
if (pos == ArrowPos.END || pos == ArrowPos.START_END)
{
a = ArrowHead.Create(type, ArrowPos.END, len, width);
a.Rotate(q, r);
a += pt1;
DrawLine(pen, a.p0.vector, a.p1.vector);
DrawLine(pen, a.p0.vector, a.p2.vector);
DrawLine(pen, a.p0.vector, a.p3.vector);
DrawLine(pen, a.p0.vector, a.p4.vector);
}
if (pos == ArrowPos.START || pos == ArrowPos.START_END)
{
a = ArrowHead.Create(type, ArrowPos.START, len, width);
a.Rotate(q, r);
a += pt0;
DrawLine(pen, a.p0.vector, a.p1.vector);
DrawLine(pen, a.p0.vector, a.p2.vector);
DrawLine(pen, a.p0.vector, a.p3.vector);
DrawLine(pen, a.p0.vector, a.p4.vector);
}
}
private void DrawDim(DrawContext dc, DrawPen linePen, DrawBrush textBrush)
{
dc.Drawing.DrawLine(linePen, PointList[0].vector, PointList[3].vector);
dc.Drawing.DrawLine(linePen, PointList[1].vector, PointList[2].vector);
Vector3d cp = CadMath.CenterPoint(PointList[3].vector, PointList[2].vector);
double arrowW = ARROW_W;
double arrowL = ARROW_LEN;
double ww = (PointList[1] - PointList[0]).Norm() / 4.0;
if (ww > arrowL)
{
dc.Drawing.DrawArrow(linePen, cp, PointList[3].vector, ArrowTypes.CROSS, ArrowPos.END, arrowL, arrowW);
dc.Drawing.DrawArrow(linePen, cp, PointList[2].vector, ArrowTypes.CROSS, ArrowPos.END, arrowL, arrowW);
}
else
{
Vector3d v0 = cp - PointList[3].vector;
Vector3d v1 = cp - PointList[2].vector;
v0 = -(v0.Normalized() * (arrowL * 1.5)) / dc.WorldScale + PointList[3].vector;
v1 = -(v1.Normalized() * (arrowL * 1.5)) / dc.WorldScale + PointList[2].vector;
dc.Drawing.DrawArrow(linePen, v0, PointList[3].vector, ArrowTypes.CROSS, ArrowPos.END, arrowL, arrowW);
dc.Drawing.DrawArrow(linePen, v1, PointList[2].vector, ArrowTypes.CROSS, ArrowPos.END, arrowL, arrowW);
dc.Drawing.DrawLine(linePen, PointList[2].vector, PointList[3].vector);
}
CadVertex lineV = PointList[2] - PointList[3];
double len = lineV.Norm();
string lenStr = CadUtil.ValToString(len);
CadVertex p = PointList[3] + (lineV / 2);
p += (PointList[3] - PointList[0]).UnitVector() * (arrowW);
CadVertex up = PointList[3] - PointList[0];
// 裏返しになる場合は、反転する
// If it turns over, reverse it
Vector3d normal = CadMath.Normal(lineV.vector, up.vector);
double scala = CadMath.InnerProduct(normal, dc.ViewDir);
if (scala > 0)
{
lineV = -lineV;
}
// --- lineV --->
// 3<------------ p ----------->2
// ^ | |
// | | |
// up 0 1
//
dc.Drawing.DrawText(FontID, textBrush, p.vector, lineV.vector, up.vector,
new DrawTextOption(DrawTextOption.H_CENTER),
lenStr);
}
public override void MoveSelectedPointsFromStored(DrawContext dc, Vector3d delta)
{
if (PointList[0].Selected && PointList[1].Selected &&
PointList[2].Selected && PointList[3].Selected)
{
PointList[0] = StoreList[0] + delta;
PointList[1] = StoreList[1] + delta;
PointList[2] = StoreList[2] + delta;
PointList[3] = StoreList[3] + delta;
return;
}
if (PointList[2].Selected || PointList[3].Selected)
{
Vector3d v0 = StoreList[3].vector - StoreList[0].vector;
if (v0.IsZero())
{
// 移動方向が不定の場合
MoveSelectedPointWithHeight(dc, delta);
return;
}
Vector3d v0u = v0.UnitVector();
double d = CadMath.InnerProduct(v0u, delta);
Vector3d vd = v0u * d;
CadVertex nv3 = StoreList[3] + vd;
CadVertex nv2 = StoreList[2] + vd;
if (nv3.EqualsThreshold(StoreList[0], 0.001) ||
nv2.EqualsThreshold(StoreList[1], 0.001))
{
return;
}
PointList[3] = nv3;
PointList[2] = nv2;
return;
}
if (PointList[0].Selected || PointList[1].Selected)
{
Vector3d v0 = StoreList[0].vector;
Vector3d v1 = StoreList[1].vector;
Vector3d v2 = StoreList[2].vector;
Vector3d v3 = StoreList[3].vector;
Vector3d lv = v3 - v0;
double h = lv.Norm();
Vector3d planeNormal = CadMath.Normal(v0, v1, v2);
Vector3d cp0 = v0;
Vector3d cp1 = v1;
if (PointList[0].Selected)
{
cp0 = CadMath.CrossPlane(v0 + delta, v0, planeNormal);
}
if (PointList[1].Selected)
{
cp1 = CadMath.CrossPlane(v1 + delta, v1, planeNormal);
}
if (cp0.EqualsThreshold(cp1, 0.001))
{
return;
}
if (PointList[0].Selected)
{
PointList[0] = PointList[0].SetVector(cp0);
}
if (PointList[1].Selected)
{
PointList[1] = PointList[1].SetVector(cp1);
}
Vector3d normal = CadMath.Normal(cp0, cp0 + planeNormal, cp1);
Vector3d d = normal * h;
PointList[3] = PointList[3].SetVector(PointList[0] + d);
PointList[2] = PointList[2].SetVector(PointList[1] + d);
}
}
private void DrawCompassOrtho()
{
PushMatrixes();
double size = 40;
double vw = DC.ViewWidth;
double vh = DC.ViewHeight;
double cx = size / 2 + 24;
double cy = size / 2 + 40;
double left = -cx;
double right = vw - cx;
double top = cy;
double bottom = -(vh - cy);
double arrowLen = 10;
double arrowW2 = 5;
Matrix4d prjm = Matrix4d.CreateOrthographicOffCenter(left, right, bottom, top, 100, 10000);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadMatrix(ref prjm);
GL.MatrixMode(MatrixMode.Modelview);
Vector3d lookAt = Vector3d.Zero;
Vector3d eye = -DC.ViewDir * 300;
Matrix4d mdlm = Matrix4d.LookAt(eye, lookAt, DC.UpVector);
GL.LoadMatrix(ref mdlm);
Vector3d p0;
Vector3d p1;
GL.LineWidth(2);
p0 = Vector3d.UnitX * -size;
p1 = Vector3d.UnitX * size;
DrawArrow(DC.GetPen(DrawTools.PEN_AXIS_X), p0, p1, ArrowTypes.CROSS, ArrowPos.END, arrowLen, arrowW2);
p0 = Vector3d.UnitY * -size;
p1 = Vector3d.UnitY * size;
DrawArrow(DC.GetPen(DrawTools.PEN_AXIS_Y), p0, p1, ArrowTypes.CROSS, ArrowPos.END, arrowLen, arrowW2);
p0 = Vector3d.UnitZ * -size;
p1 = Vector3d.UnitZ * size;
DrawArrow(DC.GetPen(DrawTools.PEN_AXIS_Z), p0, p1, ArrowTypes.CROSS, ArrowPos.END, arrowLen, arrowW2);
GL.LineWidth(1);
FontTex tex;
Vector3d xv = CadMath.Normal(DC.ViewDir, DC.UpVector);
Vector3d yv = CadMath.Normal(DC.ViewDir, DC.UpVector);
double fs = 0.6;
tex = mFontFaceW.CreateTexture("X");
p1 = Vector3d.UnitX * size;
GL.Color4(DC.GetBrush(DrawTools.BRUSH_COMPASS_LABEL_X).Color4());
mFontRenderer.Render(tex, p1, xv * tex.ImgW * fs, DC.UpVector * tex.ImgH * fs);
tex = mFontFaceW.CreateTexture("Y");
p1 = Vector3d.UnitY * size;
GL.Color4(DC.GetBrush(DrawTools.BRUSH_COMPASS_LABEL_Y).Color4());
mFontRenderer.Render(tex, p1, xv * tex.ImgW * fs, DC.UpVector * tex.ImgH * fs);
tex = mFontFaceW.CreateTexture("Z");
p1 = Vector3d.UnitZ * size;
GL.Color4(DC.GetBrush(DrawTools.BRUSH_COMPASS_LABEL_Z).Color4());
mFontRenderer.Render(tex, p1, xv * tex.ImgW * fs, DC.UpVector * tex.ImgH * fs);
PopMatrixes();
}
// 図形は凸である
public static bool IsConvex(VertexList points)
{
int cnt = points.Count;
if (cnt < 3)
{
return(false);
}
int i = 0;
Vector3d n = default;
Vector3d cn = default;
double scala = 0;
for (; i < cnt - 2;)
{
n = CadMath.Normal(points[i].vector, points[i + 1].vector, points[i + 2].vector);
i++;
if (!n.IsZero())
{
break;
}
}
if (n.IsZero())
{
return(false);
}
for (; i < cnt - 2;)
{
cn = CadMath.Normal(points[i].vector, points[i + 1].vector, points[i + 2].vector);
i++;
scala = CadMath.InnerProduct(cn, n);
if (Math.Abs(scala) < CadMath.Epsilon)
{
continue;
}
if (scala < CadMath.RP1Min)
{
return(false);
}
}
cn = CadMath.Normal(points[i].vector, points[i + 1].vector, points[0].vector);
scala = CadMath.InnerProduct(cn, n);
if (Math.Abs(scala) < 0.000001)
{
return(true);
}
if (scala < 0.999999)
{
return(false);
}
return(true);
}
private void CheckCircle(DrawContext dc, CadLayer layer, CadFigure fig)
{
if (fig.PointCount < 3)
{
return;
}
VertexList vl = fig.PointList;
if (fig.StoreList != null)
{
vl = fig.StoreList;
}
Vector3d c = vl[0].vector;
Vector3d a = vl[1].vector;
Vector3d b = vl[2].vector;
Vector3d normal = CadMath.Normal(a - c, b - c);
Vector3d tw = Target.Pos;
tw.Z = 0;
tw = dc.DevPointToWorldPoint(tw);
Vector3d crossP = CadMath.CrossPlane(tw, tw + dc.ViewDir, c, normal);
if (crossP.IsInvalid())
{
// 真横から見ている場合
// viewed edge-on
//DOut.tpl("crossP is invalid");
return;
}
double r = (a - c).Norm();
double tr = (crossP - c).Norm();
Vector3d cirP = c + (crossP - c) * (r / tr);
Vector3d dcirP = dc.WorldPointToDevPoint(cirP);
Vector3d dcrossP = dc.WorldPointToDevPoint(crossP);
dcirP.Z = 0;
dcrossP.Z = 0;
double dist = (dcirP - Target.Pos).Norm();
if (dist > Range)
{
//DOut.tpl($"dist:{dist} Range:{Range}");
return;
}
if (dist < MinDist)
{
FigureSegment fseg = new FigureSegment(fig, 0, 0, 0);
MarkSeg.Layer = layer;
MarkSeg.FigSeg = fseg;
MarkSeg.CrossPoint = cirP;
MarkSeg.CrossPointScrn = dc.WorldPointToDevPoint(cirP);
MarkSeg.Distance = dist;
MinDist = dist;
}
}
public static List <CadFigure> Split(CadFigure fig, int curveSplitNum = 32)
{
CadVertex p0 = default(CadVertex);
var triangles = new List <CadFigure>();
int i1 = -1;
int state = 0;
CadFigure triangle;
VertexList pointList = fig.GetPoints(curveSplitNum);
i1 = CadUtil.FindMaxDistantPointIndex(p0, pointList);
if (i1 == -1)
{
return(triangles);
}
triangle = GetTriangleWithCenterPoint(pointList, i1);
Vector3d tp0 = triangle.PointList[0].vector;
Vector3d tp1 = triangle.PointList[1].vector;
Vector3d tp2 = triangle.PointList[2].vector;
Vector3d dir = CadMath.Normal(tp1, tp0, tp2);
Vector3d currentDir = Vector3d.Zero;
while (pointList.Count > 3)
{
if (state == 0)
{
i1 = CadUtil.FindMaxDistantPointIndex(p0, pointList);
if (i1 == -1)
{
return(triangles);
}
}
triangle = GetTriangleWithCenterPoint(pointList, i1);
tp0 = triangle.PointList[0].vector;
tp1 = triangle.PointList[1].vector;
tp2 = triangle.PointList[2].vector;
currentDir = CadMath.Normal(tp1, tp0, tp2);
bool hasIn = ListContainsPointInTriangle(pointList, triangle);
double scala = CadMath.InnerProduct(dir, currentDir);
if (!hasIn && (scala > 0))
{
triangles.Add(triangle);
pointList.RemoveAt(i1);
state = 0;
continue;
}
if (state == 0)
{
state = 1;
i1 = 0;
}
else if (state == 1)
{
i1++;
if (i1 >= pointList.Count)
{
break;
}
}
}
if (pointList.Count == 3)
{
triangle = CadFigure.Create(CadFigure.Types.POLY_LINES);
triangle.AddPoints(pointList, 0, 3);
triangle.IsLoop = true;
triangles.Add(triangle);
}
return(triangles);
}
