}//selectMeshVertex
public void selectMeshEdges(Quad2d q)
{
HalfEdge[] guideLines = this.mesh.Edges;
double[] vertexPos = this.mesh.VertexPos;
for (int i = 0; i < guideLines.Length; ++i)
{
int fromIdx = guideLines[i].FromIndex;
int toIdx = guideLines[i].ToIndex;
Vector3d vf = new Vector3d(vertexPos[fromIdx * 3],
vertexPos[fromIdx * 3 + 1],
vertexPos[fromIdx * 3 + 2]);
Vector3d vt = new Vector3d(vertexPos[toIdx * 3],
vertexPos[toIdx * 3 + 1],
vertexPos[toIdx * 3 + 2]);
Vector3d screenFrom = this.projectToScreen(vf);
Vector3d screenTo = this.projectToScreen(vt);
if (Quad2d.isPointInQuad(new Vector2d(screenFrom.x, screenFrom.y), q) ||
Quad2d.isPointInQuad(new Vector2d(screenTo.x, screenTo.y), q))
{
if (!this.unSelect)
{
if (!this.selectedEdges.Contains(i))
{
this.selectedEdges.Add(i);
}
}
else
{
this.selectedEdges.Remove(i);
}
}
}
}//selectMeshEdges
}//selectMeshEdges
public void selectMeshFaces(Quad2d q)
{
fixed(double *vertexPos = this.mesh.VertexPos)
{
fixed(int *faceIndex = this.mesh.FaceVertexIndex)
{
for (int i = 0, j = 0; i < this.mesh.FaceCount; ++i, j += 3)
{
Vector3d[] verts = { new Vector3d(vertexPos[faceIndex[j] * 3],
vertexPos[faceIndex[j] * 3 + 1],
vertexPos[faceIndex[j] * 3 + 2]),
new Vector3d(vertexPos[faceIndex[j + 1] * 3],
vertexPos[faceIndex[j + 1] * 3 + 1],
vertexPos[faceIndex[j + 1] * 3 + 2]),
new Vector3d(vertexPos[faceIndex[j + 2] * 3],
vertexPos[faceIndex[j + 2] * 3 + 1],
vertexPos[faceIndex[j + 2] * 3 + 2]) };
for (int k = 0; k < 3; ++k)
{
Vector3d v3 = this.projectToScreen(verts[k]);
Vector2d screen = new Vector2d(v3.x, v3.y);
if (Quad2d.isPointInQuad(screen, q))
{
if (!this.unSelect)
{
if (!this.selectedFaces.Contains(i))
{
this.selectedFaces.Add(i);
}
break;
}
else
{
this.selectedFaces.Remove(i);
break;
}
}
}
}
}
}
}//selectMeshFaces
public void selectMeshVertex(Quad2d q)
{
double[] vertexPos = this.mesh.VertexPos;
for (int i = 0, j = 0; i < this.mesh.VertexCount; ++i, j += 3)
{
Vector3d screen = this.projectToScreen(new Vector3d(vertexPos[j], vertexPos[j + 1], vertexPos[j + 2]));
if (Quad2d.isPointInQuad(new Vector2d(screen.x, screen.y), q))
{
if (!this.unSelect)
{
if (!this.selectedVertices.Contains(i))
{
this.selectedVertices.Add(i);
}
}
else
{
this.selectedVertices.Remove(i);
}
}
}
}//selectMeshVertex