protected void UpdateVisualization()
{
if (visualMode == GeometryVisualMode.ViewModes)
{
geometry.VisualizeVertexFunction(ObjectModes.Column(currentMode), ColorScheme.BlueRed);
}
else if (visualMode == GeometryVisualMode.ViewDegreeVector)
{
var diff = new DifferentialStructure(geometry);
geometry.VisualizeVertexFunction(diff.MassVector, ColorScheme.Default);
}
else if (visualMode == GeometryVisualMode.ViewLapDiagonal)
{
var diff = new DifferentialStructure(geometry);
geometry.VisualizeVertexFunction(diff.Laplacian.Diagonal(), ColorScheme.Default);
}
else if (visualMode == GeometryVisualMode.ViewMesh)
{
for (int i = 0; i < geometry.vertices.Count; ++i)
{
var data = geometry.vertices[i];
data.Color = Color4.White;
geometry.vertices[i] = data;
}
}
GenerateModelBuffers();
GenerateVertexArray();
}
static void Main(string[] args)
{
if (args.Length == 0)
{
Console.WriteLine("No arguments!");
}
var objectFile = args[0];
Console.WriteLine("Loading mesh...");
Geometry.Geometry geo;
if (Path.GetExtension(objectFile) == ".hfe")
{
// Loading an hfe file
geo = Geometry.Geometry.LoadFromBinary(objectFile);
}
else if (Path.GetExtension(objectFile) == ".json")
{
// Loading geometry from json
geo = Geometry.Geometry.LoadFromJson(objectFile);
}
else
{
// Loading an external file format
var importer = new Assimp.AssimpContext();
importer.SetConfig(new Assimp.Configs.NormalSmoothingAngleConfig(66.0f));
var scene = importer.ImportFile(objectFile, Assimp.PostProcessPreset.TargetRealTimeMaximumQuality);
if (!scene.HasMeshes)
{
Console.WriteLine("Scene has no meshes!");
return;
}
Console.WriteLine("Processing mesh...");
geo = Geometry.Geometry.FromAssimp(scene.Meshes[0], true, true);
scene.Clear();
importer.Dispose();
}
bool bUseSymmetricLaplacian = false;
var indx = Array.FindIndex(args, t => t == "-sym");
if (indx != -1)
{
Console.WriteLine("Using symmetric laplacian...");
bUseSymmetricLaplacian = true;
}
indx = Array.FindIndex(args, t => t == "-lapout");
if (indx != -1)
{
Console.WriteLine("Creating differential structure...");
var diff = new DifferentialStructure(geo);
Console.WriteLine("Writing mesh laplacian to file...");
var outputFile = args[indx + 1];
if (bUseSymmetricLaplacian)
{
DifferentialStructure.WriteSparseMatrix(diff.InteriorSymmetrizedLaplacian, outputFile);
}
else
{
DifferentialStructure.WriteSparseMatrix(diff.InteriorLaplacian, outputFile);
}
}
indx = Array.FindIndex(args, t => t == "-modesin");
Mat modes = null;
Vec spec = null;
GeometryVisualMode visMode = GeometryVisualMode.ViewMesh;
if (indx != -1)
{
Console.WriteLine("Reading mode data...");
var inputFile = args[indx + 1];
DifferentialStructure.ReadModeData(inputFile, out modes, out spec);
var diff = new DifferentialStructure(geo);
if (bUseSymmetricLaplacian)
{
modes = diff.HalfInverseMassMatrix * modes;
}
if (geo.HasBoundary)
{
modes = diff.InteriorToClosureMap * modes;
}
visMode = GeometryVisualMode.ViewModes;
}
indx = Array.FindIndex(args, t => t == "-funcin");
if (indx != -1)
{
Console.WriteLine("Reading function data...");
var inputFile = args[indx + 1];
DifferentialStructure.ReadFunctionData(inputFile, out modes);
var diff = new DifferentialStructure(geo);
if (geo.HasBoundary)
{
modes = diff.InteriorToClosureMap * modes;
}
visMode = GeometryVisualMode.ViewModes;
spec = Vec.Build.Dense(modes.RowCount, 0d);
}
indx = Array.FindIndex(args, t => t == "-viewmass");
if (indx != -1)
{
visMode = GeometryVisualMode.ViewDegreeVector;
}
indx = Array.FindIndex(args, t => t == "-viewlapdiag");
if (indx != -1)
{
visMode = GeometryVisualMode.ViewLapDiagonal;
}
indx = Array.FindIndex(args, t => t == "-meshout");
if (indx != -1)
{
Console.WriteLine("Saving processed mesh...");
var path = args[indx + 1];
if (Path.GetExtension(path) == ".hfe")
{
geo.SaveToBinary(path);
}
else if (Path.GetExtension(path) == ".json")
{
geo.SaveToJson(path);
}
else
{
Console.WriteLine("Unrecognized meshout file extension!");
}
}
indx = Array.FindIndex(args, t => t == "-noview");
if (indx != -1)
{
return;
}
using (var window = new GeometryDisplayWindow(geo))
{
window.VisualMode = visMode;
window.ObjectModes = modes;
window.ObjectEigenvalues = spec;
window.Run();
}
}