Get Distance Between Entities Example (C#)
This example shows how to get the minimum and maximum distances between face
and edge entities.
//---------------------------------------------------------------------------
// Preconditions:
// Open <SOLIDWORKS_install_dir>\samples\tutorial\multibody\multi_inter.sldprt.
//
// Postconditions:
// 1. Observe the Immediate Window.
// The minimum distance
between the two face entities is 0 mm.
// The
maximum distance between the face and edge entity is
// 96.6801751904066
mm.
// 2. Click Sketch4 in the FeatureManager design tree.
// A
sketch line is created to depict the maximum distance between the
// face
and edge entities.
//
// NOTE: Do not save the part as it is used in SOLIDWORKS
tutorials.
//-----------------------------------------------------------------------------
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System;
using System.Diagnostics;
namespace GetDistanceBetweenEntities_CSharp.csproj
{
partial
class SolidWorksMacro
{
ModelDoc2
swDoc;
SelectionMgr
swSM;
Face2
swFace;
Edge
swEdge;
Entity
swTop1;
Entity
swTop2;
bool
bMin;
long
retval;
double
dist;
double[]
varParam;
object
varPos1;
object
varPos2;
double[]
Pos1 = new double[3];
double[]
Pos2 = new double[3];
int
caseType;
bool
boolstatus;
public
void Main()
{
varParam
= null;
swDoc
= (ModelDoc2)swApp.ActiveDoc;
swSM
= (SelectionMgr)swDoc.SelectionManager;
for
(caseType = 1; caseType <= 2; caseType++)
{
switch
(caseType)
{
case
1:
FaceFaceMinDistance();
break;
case
2:
FaceEdgeMaxDistance();
break;
default:
System.Windows.Forms.MessageBox.Show("Enter
proper case");
break;
}
}
}
public
void SetParameterForEdge()
{
double[]
startPt = new double[3]; ;
double[]
endPt = new double[3]; ;
double[]
startPara = new double[2]; ;
double[]
endPara = new double[2]; ;
swEdge
= (Edge)swSM.GetSelectedObject6(2, -1);
startPt
= (double[])((Vertex)swEdge.GetStartVertex()).GetPoint();
endPt
= (double[])((Vertex)swEdge.GetEndVertex()).GetPoint();
startPara
= (double[])swEdge.GetParameter(startPt[0], startPt[1], startPt[2]);
endPara
= (double[])swEdge.GetParameter(endPt[0], endPt[1], endPt[2]);
double[]
paramDl = new double[2];
paramDl[0]
= startPara[0];
paramDl[1]
= endPara[0];
varParam
= paramDl;
}
public
void SetParameterForFace()
{
swFace
= (Face2)swSM.GetSelectedObject6(2, -1);
Surface
swSurface = default(Surface);
swSurface
= (Surface)swFace.GetSurface();
double[]
varBox = new double[6];
varBox
= (double[])swFace.GetBox();
double[]
varLowParam = new double[2];
double[]
varHighParam = new double[2];
varLowParam
= (double[])swSurface.ReverseEvaluate(varBox[0], varBox[1], varBox[2]);
varHighParam
= (double[])swSurface.ReverseEvaluate(varBox[3], varBox[4], varBox[5]);
double[]
paramD2 = new double[4];
paramD2[0]
= varLowParam[0];
paramD2[1]
= varLowParam[1];
paramD2[2]
= varHighParam[0];
paramD2[3]
= varHighParam[1];
varParam
= paramD2;
}
public
void CreateLine()
{
SketchManager
swSkM = default(SketchManager);
SketchSegment
skSegment = default(SketchSegment);
swSkM
= swDoc.SketchManager;
swDoc.Extension.SelectByID2("Front",
"PLANE", 0, 0, 0, false, 0, null, 0);
swSkM.InsertSketch(true);
skSegment
= swSkM.CreateLine(Pos1[0], Pos1[1], Pos1[2], Pos2[0], Pos2[1], Pos2[2]);
swDoc.ClearSelection2(true);
swSkM.InsertSketch(true);
}
public
void FaceFaceMinDistance()
{
swDoc.ClearSelection();
boolstatus
= swDoc.Extension.SelectByID2("", "FACE", -0.07448317477082,
-0.04390354307787, 0.08443247713632, false, 0, null, 0);
boolstatus
= swDoc.Extension.SelectByID2("", "FACE", -0.05640517674067,
-0.005486808589922, 0.06500000000005, true, 0, null, 0);
SetParameterForFace();
if
((swSM.GetSelectedObjectCount() == 2))
{
swTop1
= (Entity)swSM.GetSelectedObject6(1, -1);
swTop2
= (Entity)swSM.GetSelectedObject6(2, -1);
bMin
= true;
retval
= swTop1.GetDistance(swTop2, bMin,
varParam, out varPos1, out varPos2, out dist);
Pos1
= (double[])varPos1;
Pos2
= (double[])varPos2;
Debug.Print("GetDistance
return value (0 = success) : " + retval);
Debug.Print("Face1
coordinate: " + Pos1[0] + "," + Pos1[1] + ","
+ Pos1[2]);
Debug.Print("Face2
coordinate: " + Pos2[0] + "," + Pos2[1] + ","
+ Pos2[2]);
Debug.Print("Minimum
Distance between two faces = " + dist * 1000 + " mm");
Debug.Print("");
CreateLine();
}
}
public
void FaceEdgeMaxDistance()
{
swDoc.ClearSelection();
boolstatus
= swDoc.Extension.SelectByID2("", "FACE", -0.0712080569869,
-0.04996892464504, 0.08163440548356, false, 0, null, 0);
boolstatus
= swDoc.Extension.SelectByID2("", "EDGE", -0.04898677039967,
0.0004196506486664, 0.06476403488529, true, 0, null, 0);
SetParameterForEdge();
if
((swSM.GetSelectedObjectCount() == 2))
{
swTop1
= (Entity)swSM.GetSelectedObject6(1, -1);
swTop2
= (Entity)swSM.GetSelectedObject6(2, -1);
bMin
= false;
retval
= swTop1.GetDistance(swTop2, bMin,
varParam, out varPos1, out varPos2, out dist);
Pos1
= (double[])varPos1;
Pos2
= (double[])varPos2;
Debug.Print("GetDistance
return value (0 = success) : " + retval);
Debug.Print("Face
coordinate: " + Pos1[0] + "," + Pos1[1] + ","
+ Pos1[2]);
Debug.Print("Edge
coordinate: " + Pos2[0] + "," + Pos2[1] + ","
+ Pos2[2]);
Debug.Print("Maximum
Distance between face and edge = " + dist * 1000 + " mm");
Debug.Print("");
CreateLine();
}
}
public
SldWorks swApp;
}
}