Category Archive for: Storing and Linking Data with Graphics

Locating Database Records through Drawing Objects

Now that you’ve got database links established, you can begin to make use of them. In the following exercise, you’ll see how you can locate a database record by selecting an object in your drawing. 1. Go to the top of the table by clicking the first record button at the bottom of the Data View dialog box.…

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Linking Objects to a Database

So far, you’ve looked at ways you can access and edit an external database file.You can also link specific drawing objects to elements in a database. But before you can link your drawing to data, you must Create a link template. Link templates let you set up different sets of links to a database. For example, you can…

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Accessing External Databases

AutoCAD offers a way to access an external database from within AutoCAD through the dbConnect Manager. With the dbConnect Manager, you can read and manipulate data from external database files. You can also use dbConnect Manager to link parts of your drawing to an external database. There are numerous reasons for doing this. The most obvious is…

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Extracting Block Information Using Attributes

This chapter mentioned that you can extract information regarding blocks, as well as attributes. To do this, you must use the following format: This example includes some typical values for the attribute-codes. The following list describes what each line in the above example is used for. LEVEL Returns the nesting level. NAME Returns the block name. X…

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Extracting and Exporting Attribute Information

Once you have entered the attributes into your drawing, you can extract the information contained in the attributes and use that information in other programs. You may, for example, want to keep track of the door information in a database manager. This is especially useful if you have a project such as a large hotel that contains thousands of…

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Redefining Blocks Containing Attributes

Finally, you should be aware that attributes act differently from other objects when included in redefined blocks. Normally, blocks that have been redefined change their configuration to reflect the new block definition. But if a redefined block contains attributes, the attributes will maintain their old properties. This means that the old attribute position, style, and so on, do not…

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Editing Attributes

Because drawings are usually in flux even after actual construction or manufacturing begins, you will eventually have to edit previously entered attributes. In the example of the apartment building, many things can change before the final set of drawings is completed. Attributes can be edited individually (one at a time) or they can be edited globally (meaning you can…

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Creating Attributes

Attributes depend on blocks. You might think of an attribute as a tag attached to a block, where the tag contains information about the block. For example, you could have included an-attribute definition with the door drawing you created. If you had, then every time you subsequently inserted the door you would have been prompted for a value…

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Storing and Linking Data with Graphics

Attributes are unique to computer-aided design and drafting; nothing quite like them exists in traditional drafting. Because of this, they are often poorly understood. Attributes enable you to store information as text that you can later extract to use in database managers, spreadsheet programs, and word processors. By using attributes, you can keep track of virtually any object in…

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