AutoCAD Basics 2004 bible phần 6

Tuy nhiên, nếu bạn có một bản vẽ rất phức tạp, chọn New để tạm thời trở về bản vẽ của bạn. Chỉ định một cửa sổ xung quanh khu vực bạn muốn cho các thiết lập ranh giới. AutoCAD trả về cho bạn vào hộp thoại. 3. Để xác định các khu vực kèm theo ranh giới, chọn Pick điểm. | 618 Part III Working with Data Continued The figure shows a typical template file that tracks the company division as well as the furniture s manufacturer purchase date cost and color. After you re done save the file with a file name extension of .txt. To use the file you must use the ATTEXT command which opens the Attribute Extraction dialog box. In this dialog box click Template File and choose the file you created. Choose the file format you want to create and name the output file. Then click OK. AutoCAD extracts the attributes. Summary In this chapter I covered all the ways you can use blocks and attributes in your drawings. You read about Combining objects into blocks in your drawings so that you can edit them as a unit Inserting blocks at any scale and rotation Saving a block as a file Copying objects by using the Windows clipboard and drag-and-drop Using the DesignCenter to import blocks from other drawings Utilizing attributes two main uses to place text and to create simple databases Defining attributes Inserting blocks with attributes and assign values to the attributes Extracting attribute data In the next chapter I explain how to insert references xrefs to other files into your drawings. Referencing Other Drawings Sometimes you need to refer to another AutoCAD drawing without inserting it. You may want to use part of another drawing as an example for your current drawing or to see how the model in your drawing fits in with models in other drawings. Before AutoCAD offered external references you had to print the other drawing to refer to it while in a current drawing or perhaps print both drawings and lay one on top of the other to compare them. Understanding External References External references commonly called xrefs enable you to view any drawing as a reference while in your current drawing. The external drawing is not part of your current drawing. The current drawing keeps track of the location and name of an external reference so you can always .

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