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Get UV Parameters for XYZ Location Example (C#)

This example shows how to use IFace2 and ICurve interfaces to get the UV parameters from the XYZ location.

//---------------------------------------------------------------------------

// Preconditions:

// 1. Open <SolidWorks_install_dir>\samples\tutorial\cosmosxpress\aw_hook.sldprt.

// 2. Ensure that Tools > Options > FeatureManager > Solid Bodies

//    dropdown selection is "Show".

// 3. Expand the Solid Bodies folder and select Split Line1.

//   

// Postconditions: Observe the output in the Immediate Window.

//----------------------------------------------------------------------------

using SolidWorks.Interop.sldworks;

using SolidWorks.Interop.swconst;

using System;

using System.Diagnostics;

namespace ReverseEvalTestMIK_CSharp.csproj

{

    partial class SolidWorksMacro

    {

        ModelDoc2 swModel;

        SelectionMgr swSelMgr;

        Face2 swFace;

        public void Main()

        {

            swModel = (ModelDoc2)swApp.ActiveDoc;

            swSelMgr = (SelectionMgr)swModel.SelectionManager;

            double[] pntData = new double[3];

            Body2 swBody = default(Body2);

            Body2 procBody = default(Body2);

            swBody = (Body2)swSelMgr.GetSelectedObject6(1, -1);

            procBody = swBody.GetProcessedBody2(0.5, 0.5);

            //MIK bypass surface split

            swFace = (Face2)procBody.GetFirstFace();

            //Set swFace = swBody.GetFirstFace

            while ((swFace != null))

            {

                double[] uvBnds = null;

                uvBnds = (double[])swFace.GetUVBounds();

                double UminFace = 0;

                double UmaxFace = 0;

                double VminFace = 0;

                double VmaxFace = 0;

                UminFace = uvBnds[0];

                UmaxFace = uvBnds[1];

                VminFace = uvBnds[2];

                VmaxFace = uvBnds[3];

                Surface swSurf = default(Surface);

                swSurf = (Surface)swFace.GetSurface();

                uvBnds = (double[])swSurf.Parameterization();

                double UminSurf = 0;

                double UmaxSurf = 0;

                double VminSurf = 0;

                double VmaxSurf = 0;

                UminSurf = uvBnds[0];

                UmaxSurf = uvBnds[1];

                VminSurf = uvBnds[2];

                VmaxSurf = uvBnds[3];

                object[] vEdges = null;

                vEdges = (object[])swFace.GetEdges();

                int i = 0;

                for (i = 0; i <= vEdges.GetUpperBound(0); i++)

                {

                    Edge swEdge = default(Edge);

                    swEdge = (Edge)vEdges[i];

                    Curve swCurve = default(Curve);

                    swCurve = (Curve)swEdge.GetCurve();

                    double[] vCurveParams = null;

                    vCurveParams = (double[])swEdge.GetCurveParams2();

                    double startParam = 0;

                    double endParam = 0;

                    double incParam = 0;

                    double curParam = 0;

                    startParam = vCurveParams[6];

                    endParam = vCurveParams[7];

                    incParam = (endParam - startParam) / 10.0;

                    curParam = startParam;

                    while (curParam < endParam)

                    {

                        double[] vEdgePnt = null;

                        vEdgePnt = (double[])swEdge.Evaluate(curParam);

                        double[] vUVSurfParams = null;

                        double UEdge = 0;

                        double VEdge = 0;

                        // Get the UV parameters for the point using IFace2::ReverseEvaluate

                        vUVSurfParams = (double[])swFace.ReverseEvaluate(vEdgePnt[0], vEdgePnt[1], vEdgePnt[2]);

                        if ((vUVSurfParams != null))

                        {

                            UEdge = vUVSurfParams[0];

                            VEdge = vUVSurfParams[1];

                            Debug.Print("Edge point: " + " x: " + vEdgePnt[0] + " y: " + vEdgePnt[1] + " z: " + vEdgePnt[2]);

                            Debug.Print("U parameter returned from IFace2::ReverseEvaluate is " + UEdge);

                            if (UEdge > UmaxFace | UEdge < UminFace)

                            {

                                Debug.Print("U param error face");

                            }

                            //Stop

                            Debug.Print("V parameter returned from IFace2::ReverseEvalute is " + VEdge);

                            if (VEdge > VmaxFace | VEdge < VminFace)

                            {

                                Debug.Print("V param error face");

                            }

                            //Stop

                        }

                        else

                        {

                            Debug.Print("Face reverse evaluate fails - empty data");

                        }

                        // Get the UV parameters for the point using ICurve::ReverseEvaluate

                        vUVSurfParams = (double[])swSurf.ReverseEvaluate(vEdgePnt[0], vEdgePnt[1], vEdgePnt[2]);

                        if ((vUVSurfParams != null))

                        {

                            UEdge = vUVSurfParams[0];

                            VEdge = vUVSurfParams[1];

                            Debug.Print("U parameter returned from ICurve::ReverseEvaluate is " + UEdge);

                            if (UEdge > UmaxFace | UEdge < UminFace)

                            {

                                Debug.Print("U param error surface");

                            }

                            //Stop

                            Debug.Print("V parameter returned from ICurve::ReverseEvaluate is " + VEdge);

                            if (VEdge > VmaxFace | VEdge < VminFace)

                            {

                                Debug.Print("V param error surface");

                            }

                            //Stop

                        }

                        curParam = curParam + incParam;

                    }

                }

                swFace = (Face2)swFace.GetNextFace();

            }

            Debug.Print("complete");

        }

        public SldWorks swApp;

    }

}



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