Script generates model from input parameters using SOLIDWORKS API

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This PowerShell script allows generating model using SOLIDWORKS API based on the template with specified parameters

  • Create two files and paste the code from the below snippets


$curDir = Split-Path $script:MyInvocation.MyCommand.Path
$templateFilePath = $curDir + "\template.SLDPRT"


$Source = @"
Imports System
Imports System.Collections.Generic

Public Class ModelGenerator

    Public Shared Sub GenerateModelFromTemplate(templatePath as String, outFilePath As String, width As String, length As String, height As String)
        Dim swApp As Object = Activator.CreateInstance(Type.GetTypeFromProgID("SldWorks.Application"))
        swApp.CommandInProgress = True
        swApp.UserControlBackground = True
        If swApp Is Nothing Then
            Console.WriteLine("Failed to connect to SOLIDWORKS instance")
            Exit Sub
        End If

        Const PARAM_WIDTH As String = "Width@Base"
        Const PARAM_LENGTH As String = "Length@Base"
        Const PARAM_HEIGHT As String = "Height@Boss"

        Dim openDocSpec As Object
        Console.WriteLine("Opening template model: " + templatePath)
        openDocSpec = swApp.GetOpenDocSpec(templatePath)
        openDocSpec.Silent = True
        openDocSpec.ReadOnly = True
        Dim model As Object = swApp.OpenDoc7(openDocSpec)

        If model IsNot Nothing Then

                Console.WriteLine("Setting parameters")

                Dim parameters As New Dictionary(Of String, Double)
                parameters.Add(PARAM_WIDTH, Double.Parse(width))
                parameters.Add(PARAM_LENGTH, Double.Parse(length))
                parameters.Add(PARAM_HEIGHT, Double.Parse(height))

                For Each paramData As KeyValuePair(Of String, Double) In parameters

                    Dim paramName As String = paramData.Key
                    Dim param As Object = model.Parameter(paramName)

                    If param IsNot Nothing Then

                        Const swSetValue_InAllConfigurations As Integer = 2
                        Const swSetValue_Successful As Integer = 0

                        Dim paramValue As Double = paramData.Value

                        If param.SetSystemValue3(paramValue, swSetValue_InAllConfigurations, Nothing) = swSetValue_Successful Then
                            Console.WriteLine(String.Format("{0}={1}", paramName, paramValue))
                            Throw New Exception(String.Format("Failed to set the parameter {0} to {1} ", paramName, paramValue))
                        End If
                        Throw New Exception("Failed to find the parameter: " + paramName)
                    End If


                Console.WriteLine("Saving model to " + outFilePath)

                Const swSaveAsCurrentVersion As Integer = 0
                Const swSaveAsOptions_Silent As Integer = 1
                Const swSaveAsOptions_Copy As Integer = 2


                If model.Extension.GetWhatsWrongCount() > 0 Then
                    Console.WriteLine("Model has rebuild errors")
                End If

                Dim err As Integer = model.SaveAs3(outFilePath, swSaveAsCurrentVersion, swSaveAsOptions_Silent + swSaveAsOptions_Copy)
                If err <> 0  Then
                    Throw New Exception(String.Format("Failed to save document to {0}. Error code: {1}", outFilePath, err))
                End If

            Catch ex As Exception
                Console.WriteLine("Error: " & ex.Message)
                swApp.CommandInProgress = False
                Dim modelTitle As String = model.GetTitle()
                model = Nothing
            End Try
            Console.WriteLine("Failed to open template model " + templatePath)
        End If
    End Sub

End Class

Add-Type -TypeDefinition $Source -Language VisualBasic

[ModelGenerator]::GenerateModelFromTemplate($templateFilePath, $outFilePath, $width, $length, $height)


SET inputFilePath=%1
SET outFilePath=%2

SET outFilePath=%1
SET width=%2
SET length=%3
SET height=%4

PowerShell -NoProfile -ExecutionPolicy Bypass -File "%~dp0model-generator.ps1" %outFilePath% %width% %length% %height%

Download Template Model and save it to the same folder where the above two scripts are saved.

This is template model which has 3 driving parameters: width, height and length.

Model with parameters
Model with parameters

This will be modified by the script and saved to a new file.

  • Start the command line and execute the following command
[Full Path To model-generator.cmd] [Full Path To Output SOLIDWORKS file] [Width] [Length] [Height]

As the result the file is generated and the process log is displayed directly in the console:

Messages in console reporting the progress and the result of model generation
Messages in console reporting the progress and the result of model generation

Template file is not modified and the resulting model is saved with the parameters updated.

Generated model with applied parameters
Generated model with applied parameters

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