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Get Dimension Tolerance Example (C#)

This example shows how to set and get dimension tolerance values.

// Preconditions:
// 1. Open:
//    C:\Program Files\SolidWorks Corp\SolidWorks\samples\tutorial\api\gtolwitnessline.slddrw
// 2. Open the Immediate window.
// 3. Zoom in on a dimension and click it.
// 4. Run the macro.
// Postconditions:
// 1. The dimension tolerance for the selected dimension
//    is set to basic.
// 2. Minimum and maximum dimension tolerances are set for the
//    the selected dimension, and their values printed to the
//    the Immediate window.
// 3. The height and scale of the font for the dimension tolerance
//    are printed to the Immediate window.
// NOTE: Because this part document is used elsewhere, do not
// save any changes when closing it.
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
using System;
using System.Diagnostics;
namespace ToleranceDimension.csproj
    partial class SolidWorksMacro
        ModelDoc2 swModel;
        SelectionMgr swSelMgr;
        DisplayDimension swDisplayDimension;
        Dimension swDimension;
        DimensionTolerance swDimensionTolerance;
        bool status;
        double fontHeight;
        double fontScale;
        public void Main()
            swModel = (ModelDoc2)swApp.ActiveDoc;
            swSelMgr = (SelectionMgr)swModel.SelectionManager;
            //Get the selection
            swDisplayDimension = (DisplayDimension)swSelMgr.GetSelectedObject6(1, 0);
            // If selection is not a dimension, then exit
            if (swSelMgr.GetSelectedObjectType3(1, -1) != (int)swSelectType_e.swSelDIMENSIONS)
            // Selection is a dimension, so get the dimension tolerance object
            swDimension = (Dimension)swDisplayDimension.GetDimension();
            swDimensionTolerance = (DimensionTolerance)swDimension.Tolerance;
            // Set type of Tolerance
            swDimensionTolerance.Type = (int)swTolType_e.swTolBASIC;
            // Set dimension tolerance value
            status = swDimensionTolerance.SetValues(0.01, 0.015);
            Debug.Print("Minimum dimension tolerance: " + swDimensionTolerance.GetMinValue());
            Debug.Print("Maximum dimension tolerance: " + swDimensionTolerance.GetMaxValue());
            // Get some dimension tolerance values
            fontHeight = swDimensionTolerance.GetFontHeight();
            Debug.Print("  Height of font    = " + fontHeight * 1000.0 + " mm");
            fontScale = swDimensionTolerance.GetFontScale();
            Debug.Print("  Scale of font     = " + fontScale);
        /// <summary>
        /// The SldWorks swApp variable is pre-assigned for you.
        /// </summary>
        public SldWorks swApp;

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