Learn how to streamline SOLIDWORKS add-in development using C# and VB.NET via free and open-source SwEx.AddIn Framework
SOLIDWORKS allows to insert the free form curve through XYZ coordinates from the external text file. This file however is not linked to the feature itself and the curve is not updated when external file changes.
This VBA macro allow to automatically link the external file with coordinates and update the selected curve with single click.
Example of curve file:
0mm 0mm 0mm 10mm 10mm 10mm 5mm 1mm 25mm
Curve text file must be saved in the same folder where the SOLIDWORKS file is saved and must be named as [Model Title]_[Feature Name].sldcrv. For example if curve feature is named Curve1 and resides in the SOLIDWORKS file named Part1.sldprt, the curve text file must be named Part1_Curve1.sldcrv.
Dim swApp As SldWorks.SldWorks Sub main() Set swApp = Application.SldWorks Dim swModel As SldWorks.ModelDoc2 Set swModel = swApp.ActiveDoc If Not swModel Is Nothing Then Dim swFeat As SldWorks.Feature Set swFeat = swModel.SelectionManager.GetSelectedObject6(1, -1) If Not swFeat Is Nothing Then Dim swCurveFeatDef As SldWorks.FreePointCurveFeatureData Set swCurveFeatDef = swFeat.GetDefinition If Not swCurveFeatDef Is Nothing Then Dim filePath As String filePath = swModel.GetPathName filePath = Left(filePath, InStrRev(filePath, ".") - 1) filePath = filePath & "_" & swFeat.Name & ".sldcrv" If False = swCurveFeatDef.LoadPointsFromFile(filePath) Then MsgBox "Failed to update curve" End If swFeat.ModifyDefinition swCurveFeatDef, swModel, Nothing Else MsgBox "Selected feature is not XYZ points curve" End If Else MsgBox "Please select Curve XYZ feature" End If Else MsgBox "Please open model" End If End Sub