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Get Transform for Each Circular Pattern Instance Example (C#)

This example shows how to get the transform for each instance in a circular pattern feature.

//----------------------------------------------- 
// Preconditions: 
// 1. Verify that the specified part exists.
// 2. Open the Immediate window.
//
// Postconditions: 
// 1. Opens the part.
// 2. Selects the circular-pattern feature.
// 3. Get the number of instances in the circular-pattern
//    feature.
// 4. Gets the transform for each instance
//    in the circular-pattern feature.
// 5. Examine the Immediate window.
//
// NOTE: Because the part is used elsewhere, do not
// save changes. 
//----------------------------------------------- 
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System;
using System.Diagnostics;
 
namespace Macro1CSharp.csproj
{
    partial class SolidWorksMacro
    {
        public void Main()
        {
            ModelDoc2 swModel = default(ModelDoc2);
            ModelDocExtension swModelDocExtension = default(ModelDocExtension);
            SelectionMgr swSelectionMgr = default(SelectionMgr);
            Feature swFeature = default(Feature);
            CircularPatternFeatureData swCircularPatternFeatureData = default(CircularPatternFeatureData);
            MathTransform swMathTransform = default(MathTransform);
            bool boolstatus = false;
            int nErrors = 0;
            int nWarnings = 0;
            int NbrInstances = 0;
            int i = 0;
 
            swModel = (ModelDoc2)swApp.OpenDoc6("C:\\Users\\Public\\Documents\\SOLIDWORKS\\SOLIDWORKS 2017\\tutorial\\introtosw\\pressure_plate.sldprt", (int)swDocumentTypes_e.swDocPART, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, ""ref nErrors, ref nWarnings);
            swModelDocExtension = (ModelDocExtension)swModel.Extension;
 
            // Select the circular-pattern feature 
            boolstatus = swModelDocExtension.SelectByID2("CirPattern1""BODYFEATURE", 0, 0, 0, false, 0, null, 0);
            swSelectionMgr = (SelectionMgr)swModel.SelectionManager;
            swFeature = (Feature)swSelectionMgr.GetSelectedObject6(1, -1);
            swCircularPatternFeatureData = (CircularPatternFeatureData)swFeature.GetDefinition();
 
            // Get the number of instances in the circular-pattern feature 
            NbrInstances = swCircularPatternFeatureData.TotalInstances;
            Debug.Print("Number of instances: " + NbrInstances);
 
            // Get the transform for each instance 
            // in the circular-pattern feature 
            for (i = 0; i < NbrInstances; i++)
            {
                Debug.Print(" Processing instance " + (i + 1) + "...");
                swMathTransform = (MathTransform)swCircularPatternFeatureData.GetTransform(i);
                // TODO: Do something with the transform 
 
            }
        }
 
        /// <summary> 
        /// The SldWorks swApp variable is pre-assigned for you. 
        /// </summary> 
        public SldWorks swApp;
    }
}


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