/// <summary>
/// Creates a new object from a wireframe visualization.
/// </summary>
/// <param name="visWire">Visualization object.</param>
/// <returns>New object, or null if visualization data fails validation.</returns>
public static WireframeObject Create(IVisualizationWireframe visWire)
{
if (!visWire.Validate(out string msg))
{
// Should not be here -- visualizer should have checked validation and
// reported an error.
Debug.WriteLine("Wireframe validation failed: " + msg);
return(null);
}
WireframeObject wireObj = new WireframeObject();
wireObj.mIs2d = visWire.Is2d;
//
// Start by extracting data from the visualization object. Everything stored
// there is loaded into this object. The VisWireframe validator will have
// ensured that all the indices are in range.
//
// IMPORTANT: do not retain "visWire", as it may be a proxy for an object with a
// limited lifespan.
//
float[] normalsX = visWire.GetNormalsX();
if (normalsX.Length > 0)
{
float[] normalsY = visWire.GetNormalsY();
float[] normalsZ = visWire.GetNormalsZ();
for (int i = 0; i < normalsX.Length; i++)
{
wireObj.mFaces.Add(new Face(normalsX[i], normalsY[i], normalsZ[i]));
}
}
float[] verticesX = visWire.GetVerticesX();
float[] verticesY = visWire.GetVerticesY();
float[] verticesZ = visWire.GetVerticesZ();
int[] excludedVertices = visWire.GetExcludedVertices();
// Compute min/max for X/Y for 2d re-centering. The trick is that we only want
// to use vertices that are visible. If the shape starts with a huge move off to
// the left, we don't want to include (0,0).
double xmin, xmax, ymin, ymax;
xmin = ymin = 10e9;
xmax = ymax = -10e9;
for (int i = 0; i < verticesX.Length; i++)
{
wireObj.mVertices.Add(new Vertex(verticesX[i], verticesY[i], verticesZ[i],
HasIndex(excludedVertices, i)));
}
int[] points = visWire.GetPoints();
for (int i = 0; i < points.Length; i++)
{
Vertex vert = wireObj.mVertices[points[i]];
wireObj.mPoints.Add(vert);
UpdateMinMax(vert, ref xmin, ref xmax, ref ymin, ref ymax);
}
IntPair[] edges = visWire.GetEdges();
int[] excludedEdges = visWire.GetExcludedEdges();
for (int i = 0; i < edges.Length; i++)
{
int v0index = edges[i].Val0;
int v1index = edges[i].Val1;
//if (v0index < 0 || v0index >= wireObj.mVertices.Count ||
// v1index < 0 || v1index >= wireObj.mVertices.Count) {
// Debug.Assert(false);
// return null;
//}
Vertex vert0 = wireObj.mVertices[v0index];
Vertex vert1 = wireObj.mVertices[v1index];
wireObj.mEdges.Add(new Edge(vert0, vert1, HasIndex(excludedEdges, i)));
UpdateMinMax(vert0, ref xmin, ref xmax, ref ymin, ref ymax);
UpdateMinMax(vert1, ref xmin, ref xmax, ref ymin, ref ymax);
}
IntPair[] vfaces = visWire.GetVertexFaces();
for (int i = 0; i < vfaces.Length; i++)
{
int vindex = vfaces[i].Val0;
int findex = vfaces[i].Val1;
//if (vindex < 0 || vindex >= wireObj.mVertices.Count ||
// findex < 0 || findex >= wireObj.mFaces.Count) {
// Debug.Assert(false);
// return null;
//}
Face face = wireObj.mFaces[findex];
wireObj.mVertices[vindex].Faces.Add(face);
if (face.Vert == null)
{
face.Vert = wireObj.mVertices[vindex];
}
}
IntPair[] efaces = visWire.GetEdgeFaces();
for (int i = 0; i < efaces.Length; i++)
{
int eindex = efaces[i].Val0;
int findex = efaces[i].Val1;
//if (eindex < 0 || eindex >= wireObj.mEdges.Count ||
// findex < 0 || findex >= wireObj.mFaces.Count) {
// Debug.Assert(false);
// return null;
//}
Face face = wireObj.mFaces[findex];
wireObj.mEdges[eindex].Faces.Add(face);
if (face.Vert == null)
{
face.Vert = wireObj.mEdges[eindex].Vertex0;
}
}
//
// All data has been loaded into friendly classes.
//
// Compute center of visible vertices.
wireObj.mCenterAdjX = -(xmin + xmax) / 2;
wireObj.mCenterAdjY = -(ymin + ymax / 2);
// Compute the magnitude of the largest vertex, for scaling.
double bigMag = -1.0;
double bigMagRc = -1.0;
for (int i = 0; i < wireObj.mVertices.Count; i++)
{
Vector3 vec = wireObj.mVertices[i].Vec;
double mag = vec.Magnitude();
if (bigMag < mag)
{
bigMag = mag;
}
// Repeat the operation with recentering. This isn't quite right as we're
// including all vertices, not just the visible ones.
mag = new Vector3(vec.X + wireObj.mCenterAdjX,
vec.Y + wireObj.mCenterAdjY, vec.Z).Magnitude();
if (bigMagRc < mag)
{
bigMagRc = mag;
}
}
// Avoid divide-by-zero.
if (bigMag == 0)
{
Debug.WriteLine("NOTE: wireframe magnitude was zero");
bigMag = 1;
}
if (bigMagRc == 0)
{
bigMagRc = 1;
}
wireObj.mBigMag = bigMag;
wireObj.mBigMagRc = bigMagRc;
return(wireObj);
}
/// <summary>
/// Creates a new object from a wireframe visualization.
/// </summary>
/// <param name="visWire">Visualization object.</param>
/// <returns>New object.</returns>
public static WireframeObject Create(IVisualizationWireframe visWire)
{
WireframeObject wireObj = new WireframeObject();
//
// Start by extracting data from the visualization object. Everything stored
// there is loaded into this object.
//
float[] normalsX = visWire.GetNormalsX();
if (normalsX.Length > 0)
{
float[] normalsY = visWire.GetNormalsY();
float[] normalsZ = visWire.GetNormalsZ();
if (normalsX.Length != normalsY.Length || normalsX.Length != normalsZ.Length)
{
Debug.Assert(false);
return(null);
}
for (int i = 0; i < normalsX.Length; i++)
{
wireObj.mFaces.Add(new Face(normalsX[i], normalsY[i], normalsZ[i]));
}
}
float[] verticesX = visWire.GetVerticesX();
float[] verticesY = visWire.GetVerticesY();
float[] verticesZ = visWire.GetVerticesZ();
int[] excludedVertices = visWire.GetExcludedVertices();
if (verticesX.Length == 0)
{
Debug.Assert(false);
return(null);
}
if (verticesX.Length != verticesY.Length || verticesX.Length != verticesZ.Length)
{
Debug.Assert(false);
return(null);
}
for (int i = 0; i < verticesX.Length; i++)
{
wireObj.mVertices.Add(new Vertex(verticesX[i], verticesY[i], verticesZ[i],
HasIndex(excludedVertices, i)));
}
IntPair[] edges = visWire.GetEdges();
int[] excludedEdges = visWire.GetExcludedEdges();
for (int i = 0; i < edges.Length; i++)
{
int v0index = edges[i].Val0;
int v1index = edges[i].Val1;
if (v0index < 0 || v0index >= wireObj.mVertices.Count ||
v1index < 0 || v1index >= wireObj.mVertices.Count)
{
Debug.Assert(false);
return(null);
}
wireObj.mEdges.Add(new Edge(wireObj.mVertices[v0index],
wireObj.mVertices[v1index], HasIndex(excludedEdges, i)));
}
IntPair[] vfaces = visWire.GetVertexFaces();
for (int i = 0; i < vfaces.Length; i++)
{
int vindex = vfaces[i].Val0;
int findex = vfaces[i].Val1;
if (vindex < 0 || vindex >= wireObj.mVertices.Count ||
findex < 0 || findex >= wireObj.mFaces.Count)
{
Debug.Assert(false);
return(null);
}
Face face = wireObj.mFaces[findex];
wireObj.mVertices[vindex].Faces.Add(face);
if (face.Vert == null)
{
face.Vert = wireObj.mVertices[vindex];
}
}
IntPair[] efaces = visWire.GetEdgeFaces();
for (int i = 0; i < efaces.Length; i++)
{
int eindex = efaces[i].Val0;
int findex = efaces[i].Val1;
if (eindex < 0 || eindex >= wireObj.mEdges.Count ||
findex < 0 || findex >= wireObj.mFaces.Count)
{
Debug.Assert(false);
return(null);
}
Face face = wireObj.mFaces[findex];
wireObj.mEdges[eindex].Faces.Add(face);
if (face.Vert == null)
{
face.Vert = wireObj.mEdges[eindex].Vertex0;
}
}
//
// All data has been loaded into friendly classes.
//
// Compute the magnitude of the largest vertex, for scaling.
double bigMag = -1.0;
for (int i = 0; i < wireObj.mVertices.Count; i++)
{
double mag = wireObj.mVertices[i].Vec.Magnitude();
if (bigMag < mag)
{
bigMag = mag;
}
}
wireObj.mBigMag = bigMag;
return(wireObj);
}