C# SolidWorks 二次开发 API ---工程图尺寸信息的读取

工程图尺寸信息的读取

前提条件： 在打开的工程图选中一个尺寸
本文目标： 通过转换选择的尺寸为一个尺寸对象，获取该尺寸的值与公差。

 private void btnGetDimensionInfo_Click(object sender, EventArgs e)
        {
    
    
            ISldWorks swApp = Utility.ConnectToSolidWorks();
            swApp.CommandInProgress = true;

            ModelDoc2 swModel = (ModelDoc2)swApp.ActiveDoc;

            SelectionMgr selectionMgr = (SelectionMgr)swModel.SelectionManager;

            //转换成尺寸显示对象
            var swDisplayDimension = (DisplayDimension)selectionMgr.GetSelectedObject6(1, 0);

            DisplayData displayData = (DisplayData)swDisplayDimension.GetDisplayData();

            //获取尺寸上的文字
            var anno = (Annotation)swDisplayDimension.GetAnnotation();

            //获取所在视图  ---如果是图纸，这里会报错。需要用OwnerType来判断
            var thisView = (View)anno.Owner;//

            var textwidth = displayData.GetTextInBoxWidthAtIndex(0);

            var textHeight = displayData.GetTextHeightAtIndex(0);

            // dat.GetLineCount 几条线
            var lineCount = displayData.GetLineCount();
            var lineAngle = displayData.GetTextAngleAtIndex(0);
            var linePoints = (double[])displayData.GetLineAtIndex(0);
            var linePoints2 = (double[])displayData.GetLineAtIndex(1);
            var textPoint = (double[])displayData.GetTextPositionAtIndex(0);

            var thisDimAng = lineAngle * 180 / Math.PI;

            //尺寸对象
            var swDimension = (Dimension)swDisplayDimension.GetDimension();

            //获取尺寸的公差
            var cruToleranceType = swDimension.GetToleranceType();
            var cruTolerance = swDimension.Tolerance;

            if (cruToleranceType == (int)swTolType_e.swTolBILAT)
            {
    
    
                cruTolerance.GetMaxValue2(out double ToleranceValueMax); //上公差

                cruTolerance.GetMinValue2(out double ToleranceValueMin);//下公差
            }

            var TextAll = swDisplayDimension.GetText((int)swDimensionTextParts_e.swDimensionTextAll);
            var TextPrefix = swDisplayDimension.GetText((int)swDimensionTextParts_e.swDimensionTextPrefix);
            var TextSuffix = swDisplayDimension.GetText((int)swDimensionTextParts_e.swDimensionTextSuffix);
            var CalloutAbove = swDisplayDimension.GetText((int)swDimensionTextParts_e.swDimensionTextCalloutAbove);
            var CalloutBelow = swDisplayDimension.GetText((int)swDimensionTextParts_e.swDimensionTextCalloutBelow);

            var relValue = Math.Round(swDimension.GetSystemValue2("") * 1000, 3).ToString();

            MessageBox.Show(relValue);
        }

上面是代码，有一些备注。

这是初学markdown写的， 源代码继续在码云或者github上拿。