idxfdata.h

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#pragma once
//dxfreader.h
 
// DXF Reader class
// Pass in IDXFData class to process data
 
/*********************************************************************
DXF Format: 
Find    "0 SECTION"
"2 ENTITIES"
 
Find    "0 POINT"
"8     <layer name>"
"10    < x > "
"20    < y > "
"30    < z > "
 
Find    "0 3DFACE"
"8    < layer name > "
"10    < x1 > "
"20    < y1 > "
"30    < z1 > "
"11    < x2 > "
"21    < y2 > "
"31    < z2 > "
"12    < x3 > "
"22    < y3 > "
"32    < z3 > "
"13    < x4 > "
"23    < y4 > "
"33    < z4 > "
 
Find    "0 POLYLINE"
"70    64 "  [Polyface Mesh]
"8     <layer name>"
"0 VERTEX"
"70    192"
"10    < x > "
"20    < y > "
"30    < z > "
"0 VERTEX" [INDEXED FACE]
"70    128"
"71    <vi1>"
"72    <vi2>"
"73    <vi3>"
["74    <vi4>"]
"0 SEQEND"
 
Find "0 POLYLINE"
"8     <layer name>"
"70    16 "  [3D polygon mesh]
"70    1 "   [Polygon mesh closed in the M direction.]
"70    64 "  [Polygon mesh closed in the N direction.]
"71    <M>" [Polygon mesh M vertex count (optional; default = 0)]
"72    <N>" [Polygon mesh N vertex count (optional; default = 0)]
"0 VERTEX"
"70    64"
"10    < x > "
"20    < y > "
"30    < z > "
"0 SEQEND"
 
Find    "0 POLYLINE"
"70    < g.n > "  [ g.n%2=1 implies closed polyline.]
"8     <layer name>"
"210   < extrude_x > "
"220   < extrude_y > "
"230   < extrude_z > "
"0 VERTEX"
"10    < x > "
"20    < y > "
"30    < z > "
"0 SEQEND"
 
Or      "0 LWPOLYLINE"
"8     <layer name>"
"38    < z > "
"70    < g.n > "  [ g.n%2=1 implies closed polyline.]
"90    < n > "     [# of vertices]
"10    < x > "
"20    < y > "
 
Or        "0 LINE"
"8     <layer name>"
"10    < x1 > "
"11    < x2 > "
"20    < y1 > "
"21    < y2 > "
"30    < z1 > "
"31    < z2 > "
"210   < extrude_x > "
"220   < extrude_y > "
"230   < extrude_z > "
 
Or        "0 ARC"
"8     <layer name>"
"10    < x1 > "
"20    < y1 > "
"30    < z1 > "
"40    < radius > "
"50    < angle1(degrees) > "
"51    < angle2(degrees) > "
 
Until "0 ENDSEC"
"0 EOF"
*/
 
#include "../../base/src/baseqt.h"
 
namespace itasca
{
 
  class IDXFData
  {
  public:
    virtual void setLayer(const QString &layername)=0;
    virtual void setClosed()=0;
    
    virtual void addPoint(const DVect3& p)=0;    
    virtual void addLine(const DVect3& p1, const DVect3& p2)=0;
    virtual void addArc(const DVect3& cent, double r, double a1, double a2)=0;
    virtual void startPolyline()=0;
    virtual void addPolylineVertex(const DVect3 &p)=0;
    virtual void endPolyline()=0;
    
    virtual void add3DFace(const DVect3 &p1, const DVect3 &p2, const DVect3 &p3)=0;
    virtual void add3DFace(const DVect3 &p1, const DVect3 &p2, const DVect3 &p3, const DVect3 &p4)=0;
 
    virtual void startPolyFaceMesh()=0;  
    virtual void addPolyFace(int32_t n1, int32_t n2, int32_t n3, int32_t n4)=0;
 
    virtual void startPolygonMesh()=0;
    virtual void setMeshClosedN()=0;
    virtual void setMeshClosedM()=0;
    virtual void setMeshN(int n)=0;
    virtual void setMeshM(int m)=0;
 
    virtual void startLWPolyline()=0;
    virtual void setLWPolylineZ(const double &z)=0;
    virtual void addLWPolylineVertex(const double &x,const double &y)=0;
    virtual void endLWPolyline()=0;
    
    virtual void writeParseWarning(int line,const QString &x)=0;
 
    virtual bool updateProgress(quint64 pos,quint64 max=0)=0;
  };
} // namespace itasca
// EoF