// 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, true);
}
else
{
mapPt = TextureMapping.GetMappingPosition(m_vertices[i].color, true);
}
int nMin = m_vertices[i].nMinI;
meshGeometry.TextureCoordinates[nMin] = mapPt;
}
}
public void Draw(Func <Vertex3D, double> calculateZ, int nGridNo)
{
int nXNo = nGridNo;
int nYNo = nGridNo;
// 1. set the surface grid
_3dChartData = new UniformSurfaceChart3D();
((UniformSurfaceChart3D)_3dChartData).SetGrid(nXNo, nYNo, -(float)Settings.Radius.Value, (float)Settings.Radius.Value, -(float)Settings.Radius.Value, (float)Settings.Radius.Value);
// 2. set surface chart z value
double xC = _3dChartData.XCenter();
double yC = _3dChartData.YCenter();
int nVertNo = _3dChartData.GetDataNo();
for (int i = 0; i < nVertNo; i++)
{
_3dChartData[i].z = (float)calculateZ(_3dChartData[i]);
}
UpdateResultTable();
_3dChartData.GetDataRange();
//_3dChartData.SetAxes();
// 3. set the surface chart color according to z vaule
double zMin = _3dChartData.ZMin();
double zMax = _3dChartData.ZMax();
for (int i = 0; i < nVertNo; i++)
{
Vertex3D vert = _3dChartData[i];
double h = (vert.z - zMin) / (zMax - zMin);
Color color = TextureMapping.PseudoColor(h);
_3dChartData[i].color = color;
}
// 4. Get the Mesh3D array from surface chart
ArrayList meshs = ((UniformSurfaceChart3D)_3dChartData).GetMeshes();
// 5. display vertex no and triangle no of this surface chart
UpdateModelSizeInfo(meshs);
// 6. Set the model display of surface chart
Model3D model3d = new Model3D();
Material backMaterial = new DiffuseMaterial(new SolidColorBrush(Colors.Gray));
_chartModelIndex = model3d.UpdateModel(meshs, backMaterial, _chartModelIndex, this.mainViewport);
// 7. set projection matrix, so the data is in the display region
float xMin = _3dChartData.XMin();
float xMax = _3dChartData.XMax();
_transformMatrix.CalculateProjectionMatrix(xMin, xMax, xMin, xMax, zMin, zMax, 0.5);
TransformChart();
}