// highlight the selection
public override void HighlightSelection(System.Windows.Media.Media3D.MeshGeometry3D meshGeometry, System.Windows.Media.Color selectColor)
{
int nDotNo = GetDataNo();
if (nDotNo == 0)
{
return;
}
Point mapPt;
for (int i = 0; i < nDotNo; i++)
{
if (m_vertices[i].selected)
{
mapPt = TextureMapping.GetMappingPosition(selectColor, false);
}
else
{
mapPt = TextureMapping.GetMappingPosition(m_vertices[i].color, false);
}
int nMin = m_vertices[i].nMinI;
int nMax = m_vertices[i].nMaxI;
for (int j = nMin; j <= nMax; j++)
{
meshGeometry.TextureCoordinates[j] = mapPt;
}
}
}
public override void HighlightSelection(MeshGeometry3D meshGeometry, Color selectColor)
{
var nDotNo = GetDataNo();
if (nDotNo != 0)
{
for (var i = 0; i < nDotNo; i++)
{
var color = _vertices[i].IsSelected ? selectColor : _vertices[i].Color;
var mapPt = TextureMapping.GetMappingPosition(color, true);
var nMin = _vertices[i].MinI;
meshGeometry.TextureCoordinates[nMin] = mapPt;
}
}
}
// highlight the selection
public override void HighlightSelection(MeshGeometry3D meshGeometry, System.Windows.Media.Color selectColor)
{
var nDotNo = GetDataNo();
if (nDotNo == 0)
{
return;
}
for (var i = 0; i < nDotNo; i++)
{
var mapPt = TextureMapping.GetMappingPosition(MVertices[i].selected ? selectColor
: MVertices[i].color, false);
var nMin = MVertices[i].nMinI;
var nMax = MVertices[i].nMaxI;
for (var j = nMin; j <= nMax; j++)
{
meshGeometry.TextureCoordinates[j] = mapPt;
}
}
}
void SetModel(List <Mesh3D> meshs, Material backMaterial)
{
var nMeshNo = meshs.Count;
if (nMeshNo != 0)
{
var triangleMesh = new MeshGeometry3D();
var nTotalVertNo = 0;
for (var j = 0; j < nMeshNo; j++)
{
var mesh = meshs[j];
var nVertNo = mesh.GetVertexNo();
var nTriNo = mesh.GetTriangleNo();
if (nVertNo > 0 && nTriNo > 0)
{
var vx = new Double[nVertNo];
var vy = new Double[nVertNo];
var vz = new Double[nVertNo];
for (var i = 0; i < nVertNo; i++)
{
vx[i] = vy[i] = vz[i] = 0;
}
for (var i = 0; i < nTriNo; i++)
{
var tri = mesh.GetTriangle(i);
var vN = mesh.GetTriangleNormal(i);
var n0 = tri.N0;
var n1 = tri.N1;
var n2 = tri.N2;
vx[n0] += vN.X;
vy[n0] += vN.Y;
vz[n0] += vN.Z;
vx[n1] += vN.X;
vy[n1] += vN.Y;
vz[n1] += vN.Z;
vx[n2] += vN.X;
vy[n2] += vN.Y;
vz[n2] += vN.Z;
}
for (var i = 0; i < nVertNo; i++)
{
var length = 1.0 / Math.Sqrt(vx[i] * vx[i] + vy[i] * vy[i] + vz[i] * vz[i]);
if (length < 1e20)
{
vx[i] *= length;
vy[i] *= length;
vz[i] *= length;
}
triangleMesh.Positions.Add(mesh.GetPoint(i));
var color = mesh.GetColor(i);
var mapPt = _mapping.GetMappingPosition(color);
triangleMesh.TextureCoordinates.Add(new Point(mapPt.X, mapPt.Y));
triangleMesh.Normals.Add(new Vector3D(vx[i], vy[i], vz[i]));
}
for (var i = 0; i < nTriNo; i++)
{
var tri = mesh.GetTriangle(i);
var n0 = tri.N0;
var n1 = tri.N1;
var n2 = tri.N2;
triangleMesh.TriangleIndices.Add(nTotalVertNo + n0);
triangleMesh.TriangleIndices.Add(nTotalVertNo + n1);
triangleMesh.TriangleIndices.Add(nTotalVertNo + n2);
}
nTotalVertNo += nVertNo;
}
}
//Material material = new DiffuseMaterial(new SolidColorBrush(Colors.Red));
var material = _mapping.Material;
var triangleModel = new GeometryModel3D(triangleMesh, material);
triangleModel.Transform = new Transform3DGroup();
if (backMaterial != null)
{
triangleModel.BackMaterial = backMaterial;
}
Content = triangleModel;
}
}
