vb.net连接cad,vbnet web

VB.Net读取AutoCAD图纸

如果可以的话请把分给我

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以下是cad2007版的，引用autocad 2007 type library 和autocad/objectdbx common 17如果是04或者版本更低的只要引用autocad 2007 type library，代码的话大同小异，思路是一样的

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

On Error Resume Next

Dim acadapp As Autodesk.AutoCAD.Interop.AcadApplication

acadapp = GetObject(vbNullString, "autoCAD.application")

Dim acaddoc As Autodesk.AutoCAD.Interop.AcadDocument

acaddoc = acadapp.ActiveDocument

Dim Ms As Autodesk.AutoCAD.Interop.Common.AcadModelSpace

Ms = acaddoc.ModelSpace

Dim acadObjectI As Autodesk.AutoCAD.Interop.Common.AcadObject

Dim Linei As Autodesk.AutoCAD.Interop.Common.AcadLine

Dim Circlei As Autodesk.AutoCAD.Interop.Common.AcadCircle

Dim Polylinei As Autodesk.AutoCAD.Interop.Common.AcadPolyline

Dim pt As Autodesk.AutoCAD.Interop.Common.AcadPoint

For Each acadObjectI In Ms

Debug.Print(acadObjectI.ObjectName)

Select Case acadObjectI.ObjectName

Case "AcDbLine"

Linei = acadObjectI

Debug.Print("X =" Linei.StartPoint(0).ToString)

Debug.Print("Y =" Linei.StartPoint(1).ToString)

Case ""

End Select

End Sub

VB2010版中怎么用用OLE控件连接CAD软件，显示CAD图形？会的给段代码

vb2010(vb.net）貌似已经没有OLE控件

下面的代码是用PictureBox控件显示CAD的DWG文件

Private Structure BITMAPFILEHEADER

Dim bfType As Short

Dim bfSize As Integer

Dim bfReserved1 As Short

Dim bfReserved2 As Short

Dim bfOffBits As Integer

End Structure

Public Function GetDwgImage(ByVal FileName As String) As Image

If Not File.Exists(FileName) Then Exit Function

Dim DwgF As FileStream '文件流

Dim PosSentinel As Integer '文件描述块的位置

Dim br As BinaryReader '读取二进制文件

Dim TypePreview As Integer '缩略图格式

Dim PosBMP As Integer '缩略图位置

Dim LenBMP As Integer '缩略图大小

Dim biBitCount As Short '缩略图比特深度

Dim biH As BITMAPFILEHEADER 'BMP文件头，DWG文件中不包含位图文件头，要自行加上去

Dim BMPInfo() As Byte '包含在DWG文件中的BMP文件体

Dim BMPF As New MemoryStream '保存位图的内存文件流

Dim bmpr As New BinaryWriter(BMPF) '写二进制文件类

Dim myImg As Image

Try

DwgF = New FileStream(FileName, FileMode.Open, FileAccess.Read) '文件流

br = New BinaryReader(DwgF)

DwgF.Seek(13, SeekOrigin.Begin) '从第十三字节开始读取

PosSentinel = br.ReadInt32 '第13到17字节指示缩略图描述块的位置

DwgF.Seek(PosSentinel + 30, SeekOrigin.Begin) '将指针移到缩略图描述块的第31字节

TypePreview = br.ReadByte '第31字节为缩略图格式信息，2 为BMP格式，3为WMF格式

Select Case TypePreview

Case 1

Case 2, 3

PosBMP = br.ReadInt32 'DWG文件保存的位图所在位置

LenBMP = br.ReadInt32 '位图的大小

DwgF.Seek(PosBMP + 14, SeekOrigin.Begin) '移动指针到位图块

biBitCount = br.ReadInt16 '读取比特深度

DwgF.Seek(PosBMP, SeekOrigin.Begin) '从位图块开始处读取全部位图内容备用

BMPInfo = br.ReadBytes(LenBMP) '不包含文件头的位图信息

br.Close()

DwgF.Close()

With biH '建立位图文件头

.bfType = H4D42

If biBitCount 9 Then .bfSize = 54 + 4 * (2 ^ biBitCount) + LenBMP Else .bfSize = 54 + LenBMP

.bfReserved1 = 0 '保留字节

.bfReserved2 = 0 '保留字节

.bfOffBits = 14 + H28 + 1024 '图像数据偏移

End With

'以下开始写入位图文件头

bmpr.Write(biH.bfType) '文件类型

bmpr.Write(biH.bfSize) '文件大小

bmpr.Write(biH.bfReserved1) '0

bmpr.Write(biH.bfReserved2) '0

bmpr.Write(biH.bfOffBits) '图像数据偏移

bmpr.Write(BMPInfo) '写入位图

BMPF.Seek(0, SeekOrigin.Begin) '指针移到文件开始处

myImg = Image.FromStream(BMPF) '创建位图文件对象

Return myImg

bmpr.Close()

BMPF.Close()

End Select

Catch ex As Exception

Return Nothing

End Try

End Function

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

vb.net打开cad画图的问题？

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：")

Dim pt As Point3d = ppr.Value

utility.WriteToEditor(pt.ToString())

Dim pidBlock As New PIDBlock()

'自己定义的图块类，保存图块的路径和名称

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

VB.NET连接AutoCAD出错

这个是vb.net教材里面的吧，我也是前两天刚下的。遇到类似的问题，下面是我的解决办法

首先要参考引用Autodesk.AutoCAD.Interop.dll还有Autodesk.AutoCAD.Interop.Common.dll

然后代码有两处也需要相应修改，我用的是.NET 的 vb2008

'Dim AcadApp As AutoCAD.AcadApplication

Dim AcadApp As Autodesk.AutoCAD.Interop.AcadApplication

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Call 连接AutoCAD()

End Sub

Sub 连接AutoCAD()

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

AcadApp.Visible = True '界面可视

'AcadApp.WindowState = AutoCAD.AcWindowState.acMax '界面最大化

AcadApp.WindowState = Autodesk.AutoCAD.Interop.Common.AcWindowState.acMax

AppActivate(AcadApp.Caption) '显示AutoCAD界面

End Sub

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