mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-27 14:20:34 +05:00
470 lines
14 KiB
C++
470 lines
14 KiB
C++
#ifndef FILE_STLGEOM
|
|
#define FILE_STLGEOM
|
|
|
|
/**************************************************************************/
|
|
/* File: stlgeom.hpp */
|
|
/* Author: Joachim Schoeberl */
|
|
/* Author2: Johannes Gerstmayr */
|
|
/* Date: 26. Jul. 99 */
|
|
/**************************************************************************/
|
|
|
|
/**
|
|
STL Geometry
|
|
|
|
|
|
Terminology:
|
|
|
|
Point ... coordinates of STL triangles
|
|
Triangle (short Trig) STL triangle
|
|
TopEdge .... edge in topology, boundary of STL triangles (many)
|
|
Edge .... Edges which will occur in the mesh (confirmed edges, less)
|
|
*/
|
|
|
|
|
|
#include <meshing.hpp>
|
|
|
|
|
|
namespace netgen
|
|
{
|
|
inline int IsInArray(int n, const Array<int>& ia)
|
|
{
|
|
return ia.Contains(n);
|
|
}
|
|
|
|
inline bool AddIfNotExists(Array<int>& list, int x)
|
|
{
|
|
if (list.Contains(x)) return false;
|
|
list.Append(x);
|
|
return true;
|
|
}
|
|
|
|
extern DLL_HEADER MeshingParameters mparam;
|
|
|
|
|
|
|
|
#include "stltopology.hpp"
|
|
#include "stltool.hpp"
|
|
#include "stlline.hpp"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class STLEdgeDataList
|
|
{
|
|
Array<int> storedstatus;
|
|
STLTopology & geom;
|
|
public:
|
|
|
|
STLEdgeDataList(STLTopology & ageom);
|
|
~STLEdgeDataList();
|
|
|
|
void Store ();
|
|
void Restore ();
|
|
|
|
void SetSize(int /* size */) { };
|
|
void Clear() { };
|
|
int Size() const { return geom.GetNTE(); }
|
|
const STLTopEdge & Get(int i) const { return geom.GetTopEdge(i); }
|
|
STLTopEdge & Elem(int i) { return geom.GetTopEdge(i); }
|
|
|
|
int GetNEPP(int pn) const {return geom.NTopEdgesPerPoint(pn); }
|
|
int GetEdgePP(int pn, int vi) const {return geom.TopEdgePerPoint(pn, vi);};
|
|
|
|
//void AddEdgePP(int pn, int vn) { } ;
|
|
|
|
void ResetAll();
|
|
void ChangeStatus(int status1, int status2);
|
|
|
|
int GetEdgeNum(int np1, int np2) const
|
|
{ return geom.GetTopEdgeNum (np1, np2); }
|
|
|
|
int GetNConfEdges() const;
|
|
|
|
void Write(ofstream& of) const;
|
|
void Read(ifstream& ifs);
|
|
|
|
void BuildLineWithEdge(int ep1, int ep2, Array<twoint>& line);
|
|
void BuildClusterWithEdge(int ep1, int ep2, Array<twoint>& line);
|
|
|
|
int GetNEPPStat(int p, int status) const;
|
|
int GetNConfCandEPP(int p) const;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class STLGeometry : public STLTopology, public NetgenGeometry
|
|
{
|
|
// edges to be meshed:
|
|
Array<STLEdge> edges;
|
|
//edges per point
|
|
TABLE<int> edgesperpoint;
|
|
|
|
// line: a connection of edges
|
|
Array<STLLine*> lines;
|
|
Array<int> lineendpoints; //per geometrypoint, 1 = is endpoint; 0 = no endpoint,
|
|
|
|
Array<Vec3d> normals; //normals belong to points!
|
|
|
|
Array<twoint> externaledges;
|
|
|
|
int undoexternaledges;
|
|
Array<twoint> storedexternaledges;
|
|
|
|
STLEdgeDataList * edgedata;
|
|
// STLEdgeDataList edgedata_store;
|
|
int calcedgedataanglesnew;
|
|
|
|
int edgedatastored;
|
|
|
|
|
|
|
|
int facecnt;
|
|
//meshpoint is only set, if an edge is at this point!!!
|
|
|
|
Array<int> vicinity; //is one, if a triangle belongs to vicinity (eg. of selecttrig)
|
|
Array<int> markedtrigs; //is one, if a triangle belongs to marked triangles (calcdirtystrigs)
|
|
Array<Point3d> markedsegs; //every pointpair is a segment!!!
|
|
Array<twoint> selectedmultiedge;
|
|
|
|
|
|
//spiralpoints:
|
|
Array<int> spiralpoints;
|
|
//
|
|
Array<STLChart*> atlas;
|
|
//marks all already charted trigs with chartnumber
|
|
Array<int> chartmark;
|
|
//outerchartspertrig, ascending sorted
|
|
TABLE<int> outerchartspertrig;
|
|
|
|
|
|
//for meshing and project:
|
|
Array<int> meshcharttrigs; //per trig: 1=belong to chart, 0 not
|
|
int meshchart;
|
|
|
|
Array<int> ha_points; // help array, np long, filled with 0
|
|
|
|
|
|
// sharp geometric edges not declared as edges
|
|
// (not considered for spiral check)
|
|
INDEX_2_HASHTABLE<int> * smoothedges;
|
|
|
|
|
|
//transformation:
|
|
Vec<3> meshtrignv;
|
|
Vec<3> ex, ey, ez;
|
|
Point<3> p1;
|
|
|
|
public:
|
|
int edgesfound;
|
|
int surfacemeshed;
|
|
int surfaceoptimized;
|
|
int volumemeshed;
|
|
|
|
int trigsconverted; //when STLTriangles exist -> 1
|
|
|
|
//for selecting nodes
|
|
//int selecttrig, nodeofseltrig;
|
|
|
|
//only for testing;
|
|
Array<STLLine*> meshlines;
|
|
Array<Point3d> meshpoints;
|
|
|
|
double area;
|
|
public:
|
|
STLGeometry();
|
|
virtual ~STLGeometry();
|
|
|
|
|
|
void Clear();
|
|
|
|
virtual void Save (string filename) const;
|
|
|
|
|
|
void STLInfo(double* data);
|
|
//stldoctor:
|
|
void SmoothNormals();
|
|
void MarkNonSmoothNormals();
|
|
|
|
void CalcEdgeData();
|
|
void CalcEdgeDataAngles();
|
|
|
|
const STLEdgeDataList& EdgeDataList() const {return *edgedata;}
|
|
|
|
void UndoEdgeChange();
|
|
void StoreEdgeData();
|
|
void RestoreEdgeData();
|
|
|
|
//void ClearSelectedMultiEdge() {selectedmultiedge.SetSize(0);}
|
|
//void AddSelectedMultiEdge(twoint ep) {selectedmultiedge.Append(ep);}
|
|
//int SelectedMultiEdgeSize() {return selectedmultiedge.Size();}
|
|
const Array<twoint>& SelectedMultiEdge() {return selectedmultiedge;}
|
|
twoint GetNearestSelectedDefinedEdge();
|
|
void BuildSelectedMultiEdge(twoint ep);
|
|
void BuildSelectedEdge(twoint ep);
|
|
void BuildSelectedCluster(twoint ep);
|
|
|
|
void ImportEdges();
|
|
void AddEdges(const Array<Point<3> >& eps);
|
|
void ExportEdges();
|
|
void LoadEdgeData(const char* file);
|
|
void SaveEdgeData(const char* file);
|
|
// void SetEdgeAtSelected(int mode);
|
|
|
|
|
|
void STLDoctorConfirmEdge();
|
|
void STLDoctorCandidateEdge();
|
|
void STLDoctorExcludeEdge();
|
|
void STLDoctorUndefinedEdge();
|
|
|
|
void STLDoctorSetAllUndefinedEdges();
|
|
void STLDoctorEraseCandidateEdges();
|
|
void STLDoctorConfirmCandidateEdges();
|
|
void STLDoctorConfirmedToCandidateEdges();
|
|
|
|
void STLDoctorDirtyEdgesToCandidates();
|
|
void STLDoctorLongLinesToCandidates();
|
|
|
|
void UndoExternalEdges();
|
|
void StoreExternalEdges();
|
|
void RestoreExternalEdges();
|
|
|
|
void ImportExternalEdges(const char * filename); // Flame edges, JS
|
|
// void LoadExternalEdges();
|
|
|
|
void BuildExternalEdgesFromEdges();
|
|
void SaveExternalEdges();
|
|
void AddExternalEdgeAtSelected();
|
|
void AddClosedLinesToExternalEdges();
|
|
void AddLongLinesToExternalEdges();
|
|
void AddAllNotSingleLinesToExternalEdges();
|
|
void STLDoctorBuildEdges();
|
|
void AddExternalEdgesFromGeomLine();
|
|
void DeleteDirtyExternalEdges();
|
|
void DeleteExternalEdgeAtSelected();
|
|
void DeleteExternalEdgeInVicinity();
|
|
void AddExternalEdge(int p1, int p2);
|
|
void DeleteExternalEdge(int p1, int p2);
|
|
int IsExternalEdge(int p1, int p2);
|
|
int NOExternalEdges() const {return externaledges.Size();}
|
|
twoint GetExternalEdge(int i) const {return externaledges.Get(i);}
|
|
|
|
void DestroyDirtyTrigs();
|
|
void CalcNormalsFromGeometry();
|
|
void MoveSelectedPointToMiddle();
|
|
void NeighbourAnglesOfSelectedTrig();
|
|
void PrintSelectInfo();
|
|
void ShowSelectedTrigChartnum();
|
|
void ShowSelectedTrigCoords();
|
|
void SmoothGeometry ();
|
|
|
|
|
|
void LoadMarkedTrigs();
|
|
void SaveMarkedTrigs();
|
|
void ClearMarkedSegs() {markedsegs.SetSize(0);}
|
|
void AddMarkedSeg(const Point<3> & ap1, const Point<3> & ap2)
|
|
{
|
|
markedsegs.Append(ap1);markedsegs.Append(ap2);
|
|
}
|
|
|
|
void GetMarkedSeg(int i, Point<3> & ap1, Point<3> & ap2)
|
|
{
|
|
ap1=markedsegs.Get(i*2-1);
|
|
ap2=markedsegs.Get(i*2);
|
|
}
|
|
int GetNMarkedSegs() {return markedsegs.Size()/2;}
|
|
void CalcVicinity(int starttrig);
|
|
void GetVicinity(int starttrig, int size, Array<int>& vic);
|
|
|
|
int Vicinity(int trig) const;
|
|
|
|
void InitMarkedTrigs();
|
|
void MarkDirtyTrigs();
|
|
void SmoothDirtyTrigs();
|
|
void GeomSmoothRevertedTrigs();
|
|
void MarkRevertedTrigs();
|
|
double CalcTrigBadness(int i);
|
|
int IsMarkedTrig(int trig) const;
|
|
void SetMarkedTrig(int trig, int num);
|
|
void MarkTopErrorTrigs ();
|
|
|
|
//Selected triangle
|
|
void SetSelectTrig(int trig);
|
|
int GetSelectTrig() const;
|
|
void SetNodeOfSelTrig(int n);
|
|
int GetNodeOfSelTrig() const;
|
|
|
|
|
|
int AddNormal(const Vec3d& n) {return normals.Append(n);}
|
|
const Vec3d & GetNormal(int nr) const {return normals.Get(nr);}
|
|
void SetNormal(int nr, const Vec3d& n) {normals.Elem(nr) = n;}
|
|
|
|
int AddEdge(const STLEdge& v) {return edges.Append(v);}
|
|
int AddEdge(int p1, int p2);
|
|
|
|
STLEdge GetEdge(int nr) {return edges.Get(nr);}
|
|
int GetNE() {return edges.Size();}
|
|
|
|
double Area();
|
|
|
|
double GetAngle(int t1, int t2);
|
|
double GetGeomAngle(int t1, int t2);
|
|
//if triangles t1 and t2 touch, return 1 and in p1, p2 the touching points
|
|
//int TrigsTouch(int t1, int t2, int& p1, int& p2);
|
|
|
|
|
|
|
|
///
|
|
|
|
///ReadTriangle->STLTriangle, initialise some important variables, always after load!!!
|
|
virtual void InitSTLGeometry (const Array<STLReadTriangle> & readtrigs);
|
|
virtual void TopologyChanged(); //do some things, if topology changed!
|
|
int CheckGeometryOverlapping();
|
|
|
|
//get NO edges per point
|
|
int GetEPPSize() const {return edgesperpoint.Size();};
|
|
int GetNEPP(int pn)
|
|
{
|
|
if (edgesperpoint.Size() == 0) {BuildEdgesPerPoint();}
|
|
return edgesperpoint.EntrySize(pn);
|
|
};
|
|
int GetEdgePP(int pn, int vi)
|
|
{
|
|
if (edgesperpoint.Size() == 0) {BuildEdgesPerPoint();}
|
|
return edgesperpoint.Get(pn,vi);
|
|
};
|
|
void AddEdgePP(int pn, int vn) {edgesperpoint.Add1(pn,vn);};
|
|
//von 2 punkten ermitteln, ob sie eine Kante sind
|
|
int IsEdge(int p1, int p2);
|
|
int IsEdgeNum(int p1, int p2);
|
|
|
|
///Build EdgeSegments
|
|
void ClearEdges();
|
|
void BuildEdges();
|
|
void BuildEdgesPerPoint();
|
|
void UseExternalEdges();
|
|
|
|
|
|
void FindEdgesFromAngles();
|
|
void CalcFaceNums();
|
|
int GetNOBodys();
|
|
int GetNOFaces() {return facecnt;}
|
|
void LinkEdges();
|
|
|
|
void AddConeAndSpiralEdges();
|
|
void AddFaceEdges(); //each face should have at least one starting edge (outherwise it won't be meshed)
|
|
|
|
void GetDirtyChartTrigs(int chartnum, STLChart& chart, const Array<int>& outercharttrigs,
|
|
Array<int>& chartpointchecked, Array<int>& dirtytrigs);
|
|
|
|
void ClearSpiralPoints();
|
|
void SetSpiralPoint(int pn) {spiralpoints.Elem(pn) = 1;};
|
|
int GetSpiralPoint(int pn) const {return spiralpoints.Get(pn);};
|
|
|
|
void GetSortedTrianglesAroundPoint(int p, int starttrig, Array<int>& trigs);
|
|
|
|
// smooth edges: sharp geometric edges not declared as edges
|
|
void BuildSmoothEdges ();
|
|
int IsSmoothEdge (int pi1, int pi2) const;
|
|
|
|
|
|
//make charts with regions of a max. angle
|
|
void MakeAtlas(class Mesh & mesh);
|
|
|
|
//outerchartspertrig, sorted!
|
|
int GetOCPTSize() const {return outerchartspertrig.Size();};
|
|
int GetNOCPT(int tn) const {return outerchartspertrig.EntrySize(tn);};
|
|
int GetOCPT(int tn, int vi) const {return outerchartspertrig.Get(tn,vi);};
|
|
void SetOCPT(int tn, int vi, int ocn) {outerchartspertrig.Set(tn,vi,ocn);};
|
|
void AddOCPT(int tn, int ocn) {outerchartspertrig.Add1(tn, ocn);};
|
|
int TrigIsInOC(int tn, int ocn) const;
|
|
|
|
//get chart number of a trig or 0 if unmarked
|
|
int GetChartNr(int i) const;
|
|
int GetMarker(int i) const
|
|
{ return chartmark.Get(i); }
|
|
void SetMarker(int nr, int m);
|
|
int GetNOCharts() const;
|
|
//get a chart from atlas
|
|
const STLChart& GetChart(int nr) const;
|
|
STLChart& GetChart(int nr) {return *(atlas.Get(nr));};
|
|
int AtlasMade() const;
|
|
|
|
void GetInnerChartLimes(Array<twoint>& limes, int chartnum);
|
|
|
|
//FOR MESHING
|
|
int GetMeshChartNr () { return meshchart; }
|
|
void GetMeshChartBoundary (Array<Point2d > & points,
|
|
Array<Point3d > & points3d,
|
|
Array<INDEX_2> & lines, double h);
|
|
|
|
|
|
Point<3> PointBetween(const Point<3> & p1, int t1, const Point<3> & p2, int t2);
|
|
|
|
//select triangles in meshcharttrigs of actual (defined by trig) whole chart
|
|
void PrepareSurfaceMeshing();
|
|
//
|
|
void DefineTangentialPlane(const Point<3> & ap1, const Point<3> & ap2, int trig);
|
|
//
|
|
void SelectChartOfTriangle (int trignum);
|
|
//
|
|
void SelectChartOfPoint (const Point<3> & p);
|
|
//
|
|
const Vec<3> & GetChartNormalVector () const { return meshtrignv; }
|
|
|
|
// list of trigs
|
|
void ToPlane (const Point<3> & locpoint, int * trigs, Point<2> & plainpoint,
|
|
double h, int& zone, int checkchart);
|
|
//return 0, wenn alles OK, 1 sonst
|
|
int FromPlane (const Point<2> & plainpoint, Point<3> & locpoint, double h);
|
|
|
|
//get nearest point in actual chart and return any triangle where it lies on
|
|
int ProjectNearest(Point<3> & p3d) const;
|
|
//project point with normal nv from last define tangential plane
|
|
|
|
int LastTrig() const;
|
|
int Project(Point<3> & p3d) const;
|
|
int ProjectOnWholeSurface (Point<3> & p3d) const;
|
|
|
|
int GetNLines() const {return lines.Size();}
|
|
int AddLine(STLLine* line) {return lines.Append(line);}
|
|
STLLine* GetLine(int nr) const {return lines.Get(nr);}
|
|
int GetLineP(int lnr, int pnr) const {return lines.Get(lnr)->PNum(pnr);}
|
|
int GetLineNP(int nr) const {return lines.Get(nr)->NP();}
|
|
|
|
void SetLineEndPoint(int pn);
|
|
int IsLineEndPoint(int pn);
|
|
int LineEndPointsSet() const {return lineendpoints.Size() == GetNP();}
|
|
void ClearLineEndPoints();
|
|
|
|
void RestrictLocalH(class Mesh & mesh, double gh);
|
|
void RestrictLocalHCurv(class Mesh & mesh, double gh);
|
|
void RestrictHChartDistOneChart(int chartnum, Array<int>& acttrigs, class Mesh & mesh,
|
|
double gh, double fact, double minh);
|
|
|
|
friend class MeshingSTLSurface;
|
|
|
|
|
|
virtual int GenerateMesh (Mesh*& mesh, MeshingParameters & mparam,
|
|
int perfstepsstart, int perfstepsend);
|
|
|
|
virtual const Refinement & GetRefinement () const;
|
|
};
|
|
|
|
|
|
#include "meshstlsurface.hpp"
|
|
|
|
|
|
|
|
extern int STLMeshingDummy (STLGeometry* stlgeometry, Mesh*& mesh, MeshingParameters & mparam,
|
|
int perfstepsstart, int perfstepsend);
|
|
|
|
|
|
}
|
|
#endif
|