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vb.net模仿CAD cad vba编程
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如何使用vb.net调用cad进行绘图
你去查查书吧,书上挺详细的,在这说不好说,你先在项目里引用。然后 Dim acadapp As AcadApplication Dim acaddoc As AcadDocument On Error Resume Next AcadApp = GetObject(, "AutoCAD.Application") If Err.Number Then Err.Clear() AcadApp = CreateObject("AutoCAD.Application") If Err.Number Then MsgBox("不能运行AutoCAD,请检查是否安装了AutoCAD") Exit Sub End If End If AcadApp.Visible = True '界面可视
相关问答
Q1: 在vs2012下,vb.net中点击一个按钮,就会打开一个指定位置的cad图形,然后可以在里面画图,
你是要操作cad文件vb.net模仿CAD?网上有操作dxf或dwg格式的代码vb.net模仿CAD,你看看dxf的格式吧,是明码的。
简单的点线这些好实现,但要尺寸标注或其它的就要麻烦些
Q2: 如何用vb.net编程在cad图形中插入dwg图块?
Dim ppr As PromptPointResult = ed.GetPoint("请选择插入点vb.net模仿CAD:")
Dim pt As Point3d = ppr.Value
utility.WriteToEditor(pt.ToString())
Dim pidBlock As New PIDBlock()
'自己定义vb.net模仿CAD的图块类vb.net模仿CAD,保存图块vb.net模仿CAD的路径和名称
pidBlock.Name = "sample"
pidBlock.Path = blockPath "b_sample.dwg"
Using blkDb As New Database(False, True)
'read drawing
blkDb.ReadDwgFile(pidBlock.Path, System.IO.FileShare.Read, True, Nothing)
blkDb.CloseInput(True)
Using docLock As DocumentLock = doc.LockDocument()
'多文档要先这样,否则报至命错误
Using t As Transaction = doc.TransactionManager.StartTransaction()
'insert it as a new block
Dim idBTR As ObjectId = doc.Database.Insert(pidBlock.Name, blkDb, False)
'create a ref to the block
Dim bt As BlockTable = DirectCast(t.GetObject(doc.Database.BlockTableId, OpenMode.ForRead), BlockTable)
Dim btr As BlockTableRecord = DirectCast(t.GetObject(bt(BlockTableRecord.ModelSpace), OpenMode.ForWrite), BlockTableRecord)
Using bref As New BlockReference(pt, idBTR)
btr.AppendEntity(bref)
t.AddNewlyCreatedDBObject(bref, True)
End Using
t.Commit()
End Using
End Using
End Using
Q3: vb.net怎样在当前已打开的AutoCAD画图? 最好有个判断语句, 如果CAD已打开, 在当前画图; 如果没有, 则打开
Private Function isopen() As AutoCAD.AcadApplication
Try
dim CADapp_temp AutoCAD.AcadApplication = GetObject(, "AutoCAD.Application")
return CADapp_temp
Catch ex As Exception
Return Nothing
End Try
End Function
'调用上面vb.net模仿CAD的函数,如果为nothing表示没有打开vb.net模仿CAD,否则打开并返回对象
vb.net模仿CAD的介绍就聊到这里吧,感谢你花时间阅读本站内容,更多关于cad vba编程、vb.net模仿CAD的信息别忘了在本站进行查找喔。





