public static CadMesh CreateSphere(Vector3d pos, double r, int slices1, int slices2)
{
VertexList vl = new VertexList(slices2);
double d = Math.PI / slices2;
for (int i = 0; i < slices2; i++)
{
double a = i * d;
double x = Math.Sin(a) * r;
double y = Math.Cos(a) * r;
vl.Add(CadVertex.Create(x, y, 0));
}
vl.Add(CadVertex.Create(0, -r, 0));
CadMesh mesh = CreateRotatingBody(
slices1, Vector3d.Zero, Vector3d.UnitY, vl, false, false, FaceType.TRIANGLE);
for (int i = 0; i < mesh.VertexStore.Count; i++)
{
mesh.VertexStore.Ref(i).vector += pos;
}
return(mesh);
}
public CadVertex Restore()
{
CadVertex v = CadVertex.Create(x, y, z);
v.Flag = Flag;
return(v);
}
public CadVertex Restore()
{
CadVertex v = CadVertex.Create(P.X, P.Y, P.Z);
v.Flag = Flag;
return(v);
}
public static CadMesh CreateUnitCube(Vector3d wv, Vector3d hv, FaceType faceType = FaceType.TRIANGLE)
{
Vector3d tv = CadMath.Normal(wv, hv);
Vector3d wv2 = wv / 2;
Vector3d hv2 = hv / 2;
Vector3d tv2 = tv / 2;
CadMesh cm = new CadMesh(8, 12);
cm.VertexStore.Add(CadVertex.Create(wv2 + hv2 + tv2));
cm.VertexStore.Add(CadVertex.Create(-wv2 + hv2 + tv2));
cm.VertexStore.Add(CadVertex.Create(-wv2 - hv2 + tv2));
cm.VertexStore.Add(CadVertex.Create(wv2 - hv2 + tv2));
cm.VertexStore.Add(CadVertex.Create(wv2 + hv2 - tv2));
cm.VertexStore.Add(CadVertex.Create(-wv2 + hv2 - tv2));
cm.VertexStore.Add(CadVertex.Create(-wv2 - hv2 - tv2));
cm.VertexStore.Add(CadVertex.Create(wv2 - hv2 - tv2));
if (faceType == FaceType.QUADRANGLE)
{
cm.FaceStore.Add(new CadFace(0, 1, 2, 3));
cm.FaceStore.Add(new CadFace(7, 6, 5, 4));
cm.FaceStore.Add(new CadFace(0, 4, 5, 1));
cm.FaceStore.Add(new CadFace(1, 5, 6, 2));
cm.FaceStore.Add(new CadFace(2, 6, 7, 3));
cm.FaceStore.Add(new CadFace(3, 7, 4, 0));
}
else
{
cm.FaceStore.Add(new CadFace(0, 1, 2));
cm.FaceStore.Add(new CadFace(2, 3, 0));
cm.FaceStore.Add(new CadFace(7, 6, 5));
cm.FaceStore.Add(new CadFace(5, 4, 7));
cm.FaceStore.Add(new CadFace(0, 4, 5));
cm.FaceStore.Add(new CadFace(5, 1, 0));
cm.FaceStore.Add(new CadFace(1, 5, 6));
cm.FaceStore.Add(new CadFace(6, 2, 1));
cm.FaceStore.Add(new CadFace(2, 6, 7));
cm.FaceStore.Add(new CadFace(7, 3, 2));
cm.FaceStore.Add(new CadFace(3, 7, 4));
cm.FaceStore.Add(new CadFace(4, 0, 3));
}
return(cm);
}
// 単位立方体作成
public static CadMesh CreateUnitCube(FaceType faceType = FaceType.TRIANGLE)
{
CadMesh cm = new CadMesh(8, 12);
cm.VertexStore.Add(CadVertex.Create(+0.5, +0.5, +0.5));
cm.VertexStore.Add(CadVertex.Create(-0.5, +0.5, +0.5));
cm.VertexStore.Add(CadVertex.Create(-0.5, -0.5, +0.5));
cm.VertexStore.Add(CadVertex.Create(+0.5, -0.5, +0.5));
cm.VertexStore.Add(CadVertex.Create(+0.5, +0.5, -0.5));
cm.VertexStore.Add(CadVertex.Create(-0.5, +0.5, -0.5));
cm.VertexStore.Add(CadVertex.Create(-0.5, -0.5, -0.5));
cm.VertexStore.Add(CadVertex.Create(+0.5, -0.5, -0.5));
if (faceType == FaceType.QUADRANGLE)
{
cm.FaceStore.Add(new CadFace(0, 1, 2, 3));
cm.FaceStore.Add(new CadFace(7, 6, 5, 4));
cm.FaceStore.Add(new CadFace(0, 4, 5, 1));
cm.FaceStore.Add(new CadFace(1, 5, 6, 2));
cm.FaceStore.Add(new CadFace(2, 6, 7, 3));
cm.FaceStore.Add(new CadFace(3, 7, 4, 0));
}
else
{
cm.FaceStore.Add(new CadFace(0, 1, 2));
cm.FaceStore.Add(new CadFace(2, 3, 0));
cm.FaceStore.Add(new CadFace(7, 6, 5));
cm.FaceStore.Add(new CadFace(5, 4, 7));
cm.FaceStore.Add(new CadFace(0, 4, 5));
cm.FaceStore.Add(new CadFace(5, 1, 0));
cm.FaceStore.Add(new CadFace(1, 5, 6));
cm.FaceStore.Add(new CadFace(6, 2, 1));
cm.FaceStore.Add(new CadFace(2, 6, 7));
cm.FaceStore.Add(new CadFace(7, 3, 2));
cm.FaceStore.Add(new CadFace(3, 7, 4));
cm.FaceStore.Add(new CadFace(4, 0, 3));
}
return(cm);
}
public static ArrowHead Create(ArrowTypes type, ArrowPos pos, double len, double width)
{
ArrowHead a = default(ArrowHead);
double w2 = width / 2;
if (pos == ArrowPos.END)
{
if (type == ArrowTypes.CROSS)
{
a.p0 = CadVertex.Create(0, 0, 0);
a.p1 = CadVertex.Create(-len, w2, w2);
a.p2 = CadVertex.Create(-len, w2, -w2);
a.p3 = CadVertex.Create(-len, -w2, -w2);
a.p4 = CadVertex.Create(-len, -w2, w2);
}
else if (type == ArrowTypes.PLUS)
{
a.p0 = CadVertex.Create(0, 0, 0);
a.p1 = CadVertex.Create(-len, w2, 0);
a.p2 = CadVertex.Create(-len, 0, -w2);
a.p3 = CadVertex.Create(-len, -w2, 0);
a.p4 = CadVertex.Create(-len, 0, w2);
}
}
else
{
if (type == ArrowTypes.CROSS)
{
a.p0 = CadVertex.Create(0, 0, 0);
a.p1 = CadVertex.Create(len, w2, w2);
a.p2 = CadVertex.Create(len, w2, -w2);
a.p3 = CadVertex.Create(len, -w2, -w2);
a.p4 = CadVertex.Create(len, -w2, w2);
}
else if (type == ArrowTypes.PLUS)
{
a.p0 = CadVertex.Create(0, 0, 0);
a.p1 = CadVertex.Create(len, w2, 0);
a.p2 = CadVertex.Create(len, 0, -w2);
a.p3 = CadVertex.Create(len, -w2, 0);
a.p4 = CadVertex.Create(len, 0, w2);
}
}
return(a);
}
public CadMesh Load(string fname, double scale)
{
TotalPointCount = 0;
TotalFaceCount = 0;
CadMesh mesh = new CadMesh(10, 10);
StreamReader reader = new StreamReader(fname);
string L1;
string L2;
DxfState state = DxfState.STATE_NONE;
int valCnt = 0;
double[] val = new double[3];
int code;
VertexList pointList = new VertexList();
while (!reader.EndOfStream)
{
L1 = reader.ReadLine();
L2 = reader.ReadLine();
code = Int32.Parse(L1);
L2 = L2.Trim();
if (code == 0)
{
if (L2 == "3DFACE")
{
state = DxfState.STATE_3DFACE;
valCnt = 0;
}
if (pointList.Count > 0)
{
AddFace(mesh, pointList);
TotalFaceCount++;
pointList.Clear();
}
if (valCnt != 0)
{
state = 0;
}
}
if (state == DxfState.STATE_3DFACE)
{
if (code < 10)
{
continue;
}
val[valCnt] = Double.Parse(L2) * scale;
valCnt++;
if (valCnt >= 3)
{
pointList.Add(CadVertex.Create(val[2], val[1], val[0]));
valCnt = 0;
TotalPointCount++;
}
continue;
}
}
return(mesh);
}
public CadVertex CreateVertex(double x, double y, double z)
{
return(CadVertex.Create(x, y, z));
}