Subject: Extracting attribute information
• Comma Delimited Format (CDF) Contains one line for each instance of a block, with individual attribute fields separated by commas. Character string fields are enclosed with single quotation marks. You must specify a template file when extracting to a CDF file.
• Space Delimited Format (SDF) Contains one line for each instance of a block. Each attribute field has a fixed length; there are no separators or character string delimiters. You must specify a template file when extracting to a SDF file.
• Drawing Exchange Format (DXF) Creates a subset of a standard DXF file (a *.dxx file) containing all the information about each block, including the insertion points, rotation angles, and attribute values. No template file is required.
Before extracting attributes to a CDF or SDF file, you must create a template file. The template file is an ASCII text file that specifies the attribute data fields to be written in the extract file. Each line of the template file specifies one attribute field.
Each line in the template file must start with the field name. Block name and insertion-point values must begin with BL:. The next nonblank character must be either a C (indicating a character string field) or an N (indicating a numeric field). This character is then followed by three digits indicating the width of the field (in characters). The final three digits indicate the number of decimal places (for numeric fields). In the case of character fields, the last three digits must be zeros (000). A typical template file is similar to the one shown here:
To create a template file
1 Create a template file using any ASCII text editor (such as Microsoft® Notepad or Microsoft® WordPad) or a word-processing program such as Microsoft® Word.
2 Include the necessary fields in the template file.
3 Save the template file in ASCII text format.
1 Do one of the following to choose Extract Attributes ():
• On the ribbon, choose Insert > Extract Attributes (in Block Definition).
• On the menu, choose Tools > Extract Attributes.
• On the Tools toolbar, click the Extract Attributes tool.
• Type ddattext and then press Enter.
2 Click Select, specify the entities from which to extract attributes, and then press Enter.
3 Specify the format of the extracted file.
4 For CDF and SDF formats, specify the template file.
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