private void button_convexdecomp_Click(object sender, EventArgs e)
{
ModelDoc2 swModel;
swModel = (ModelDoc2)this.mSWApplication.ActiveDoc;
if (swModel == null)
{
System.Windows.Forms.MessageBox.Show("Please open a part and select a solid body!");
return;
}
SelectionMgr swSelMgr = (SelectionMgr)swModel.SelectionManager;
if (swSelMgr.GetSelectedObjectCount2(-1) == 0)
{
System.Windows.Forms.MessageBox.Show("Please select one or more solid bodies!");
return;
}
for (int isel = 1; isel <= swSelMgr.GetSelectedObjectCount2(-1); isel++)
{
if ((swSelectType_e)swSelMgr.GetSelectedObjectType3(isel, -1) != swSelectType_e.swSelSOLIDBODIES)
{
System.Windows.Forms.MessageBox.Show("This function can be applied only to solid bodies! Select one or more bodies before using it.");
return;
}
bool rbody_converted = false;
Body2 swBodyIn = (Body2)swSelMgr.GetSelectedObject6(isel, -1);
// ----- tesselate
Face2 swFace = null;
Tessellation swTessellation = null;
bool bResult = false;
// Pass in null so the whole body will be tessellated
swTessellation = (Tessellation)swBodyIn.GetTessellation(null);
// Set up the Tessellation object
swTessellation.NeedFaceFacetMap = true;
swTessellation.NeedVertexParams = true;
swTessellation.NeedVertexNormal = true;
swTessellation.ImprovedQuality = true;
int group_vstride = 0;
// How to handle matches across common edges
swTessellation.MatchType = (int)swTesselationMatchType_e.swTesselationMatchFacetTopology;
// Do it
if (swProgress != null)
swProgress.UpdateTitle("Tesselation process...");
bResult = swTessellation.Tessellate();
// Now get the facet data per face
int[] aFacetIds;
int iNumFacetIds;
int[] aFinIds;
int[] aVertexIds;
double[] aVertexCoords1;
int numv = swTessellation.GetVertexCount();
int numf = swTessellation.GetFacetCount();
int iface = 0;
// Get all vertexes
vhacd_CLI.Vect3D[] myvertexes = new vhacd_CLI.Vect3D[numv];
vhacd_CLI.Triangle[] mytriangles = new vhacd_CLI.Triangle[numf];
for (int iv = 0; iv < numv; iv++)
{
if ((swProgress != null) && (iv % 200 == 0))
swProgress.UpdateTitle("Vertexes process: " + iv + "-th vertex ...");
aVertexCoords1 = (double[])swTessellation.GetVertexPoint(iv);
myvertexes[iv] = new vhacd_CLI.Vect3D(
aVertexCoords1[0],
aVertexCoords1[1],
aVertexCoords1[2] );
}
// Loop over faces
swFace = (Face2)swBodyIn.GetFirstFace();
while (swFace != null)
{
aFacetIds = (int[])swTessellation.GetFaceFacets(swFace);
iNumFacetIds = aFacetIds.Length;
for (int iFacetIdIdx = 0; iFacetIdIdx < iNumFacetIds; iFacetIdIdx++)
{
if ((swProgress != null) && (iFacetIdIdx % 100 == 0))
swProgress.UpdateTitle("Faces process: " + iFacetIdIdx + "-th face ...");
aFinIds = (int[])swTessellation.GetFacetFins(aFacetIds[iFacetIdIdx]);
// There should always be three fins per facet
int iFinIdx = 0;
aVertexIds = (int[])swTessellation.GetFinVertices(aFinIds[iFinIdx]);
int ip1 = aVertexIds[0] + group_vstride;
iFinIdx = 1;
aVertexIds = (int[])swTessellation.GetFinVertices(aFinIds[iFinIdx]);
int ip2 = aVertexIds[0] + group_vstride;
iFinIdx = 2;
aVertexIds = (int[])swTessellation.GetFinVertices(aFinIds[iFinIdx]);
int ip3 = aVertexIds[0] + group_vstride;
mytriangles[iface] = new vhacd_CLI.Triangle(ip1, ip2, ip3);
iface++;
}
swFace = (Face2)swFace.GetNextFace();
}
group_vstride += swTessellation.GetVertexCount();
// construct a new customer dialog
ConvexDecomp2 myCustomerDialog = new ConvexDecomp2();
myCustomerDialog.SetMeshInfo(numf, numv);
// show the modal dialog
if (myCustomerDialog.ShowDialog() == DialogResult.OK)
{
// Perform convexdecomposition
vhacd_CLI.vhacd_CLI_wrapper myConvexDecomp = new vhacd_CLI.vhacd_CLI_wrapper();
myConvexDecomp.SetMesh(myvertexes, mytriangles);
myConvexDecomp.targetNTrianglesDecimatedMesh = myCustomerDialog.m_decimate;
myConvexDecomp.alpha = myCustomerDialog.m_alpha;
myConvexDecomp.concavity = myCustomerDialog.m_concavity;
myConvexDecomp.depth = myCustomerDialog.m_depht;
myConvexDecomp.posSampling = myCustomerDialog.m_positionsampling;
myConvexDecomp.angleSampling = myCustomerDialog.m_anglesampling;
myConvexDecomp.posRefine = myCustomerDialog.m_posrefine;
myConvexDecomp.angleRefine = myCustomerDialog.m_anglerefine;
int nhulls = myConvexDecomp.Compute(true, false);
Body2 myNewBody = null;
IPartDoc mpart = null;
if (myConvexDecomp.GetNClusters() > 0)
{
Configuration swConf;
Component2 swRootComp;
swConf = (Configuration)swModel.GetActiveConfiguration();
swRootComp = (Component2)swConf.GetRootComponent3(true);
if (swModel.GetType() == (int)swDocumentTypes_e.swDocPART)
{
mpart = (IPartDoc)swModel;
}
}
for (int nc = 0; nc < myConvexDecomp.GetNClusters(); nc++)
{
vhacd_CLI.Vect3D[] hull_vertexes = new vhacd_CLI.Vect3D[0];
vhacd_CLI.Triangle[] hull_triangles = new vhacd_CLI.Triangle[0];
int npoints = myConvexDecomp.GetClusterConvexHull(nc, ref hull_vertexes, ref hull_triangles);
if (mpart != null)
{
//myNewBody = (Body2)mpart.CreateNewBody();
myNewBody = (Body2)mpart.ICreateNewBody2();
for (int ihf = 0; ihf < hull_triangles.GetLength(0); ihf++)
{
double[] vPt = new double[9];
vPt[0] = hull_vertexes[hull_triangles[ihf].p1].X;
vPt[1] = hull_vertexes[hull_triangles[ihf].p1].Y;
vPt[2] = hull_vertexes[hull_triangles[ihf].p1].Z;
vPt[3] = hull_vertexes[hull_triangles[ihf].p2].X;
vPt[4] = hull_vertexes[hull_triangles[ihf].p2].Y;
vPt[5] = hull_vertexes[hull_triangles[ihf].p2].Z;
vPt[6] = hull_vertexes[hull_triangles[ihf].p3].X;
vPt[7] = hull_vertexes[hull_triangles[ihf].p3].Y;
vPt[8] = hull_vertexes[hull_triangles[ihf].p3].Z;
myNewBody.CreatePlanarTrimSurfaceDLL((Object)vPt, null);
}
bool created = myNewBody.CreateBodyFromSurfaces();
if (created)
{
ModelDocExtension mextension = swModel.Extension;
Feature mlastfeature = mextension.GetLastFeatureAdded();
mlastfeature.Select2(true, nc); // does not append?
/* ***TO DO***
int materr = myNewBody.SetMaterialProperty("Default", "", "Air");
if (materr != 1)
materr = myNewBody.SetMaterialProperty("Default", "", "Aria");
if (materr != 1)
materr = myNewBody.SetMaterialProperty("Default", "", "Luft");
//if (materr != 1)
// System.Windows.Forms.MessageBox.Show("Warning! could not assign 'air' material to the collision shape: " + myNewBody.Name + "\n This can affect mass computations.");
*/
double[] mcolor = new double[9] { 1, 0, 0, 1, 1, 1, 0, 0.7, 0 }; // R, G, B, Ambient, Diffuse, Specular, Shininess, Transparency, Emission
myNewBody.MaterialPropertyValues2 = mcolor; // it does not work
}
}
} // end loop on clusters
/* ***TO DO***
// all new 'imported body' features must be grouped into a folder to avoid confusion:
IFeatureManager swFeatMgr = swModel.FeatureManager;
Feature swFeat = swFeatMgr.InsertFeatureTreeFolder2((int)swFeatureTreeFolderType_e.swFeatureTreeFolder_Containing);
*/
// must force rebuild otherwise one cannot see in the design tree that an 'air' material has been added to collision bodies, etc.
//swModel.Rebuild((int)swRebuildOptions_e.swForceRebuildAll);
swModel.ForceRebuild3(false);
} // end if user choose OK to decompose
} // end loop on selected items
}
