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The task of selection implies a multi-step process, and automating this task using a script or model is strongly suggested. Applying a filtering query to the input features allows the isolation of just the input features useful in creating polygons.
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Limit the candidates from the CAD file used to build polygons.Once it is determined how data is organized in the drawing, use the distinguishing information to filter the input data. Therefore, identify just the lines and points in a CAD file that are used to depict the desired polygon boundaries and optional descriptive attributes.ĬAD files typically organize data by layers, but it is equally valid to distinguish features by graphic properties in combination, such as line style, line weight, or color. It is rare that all the linear features or point features in a CAD drawing are used as boundary features and label points to build the polygons. To generate meaningful polygons from CAD lines and points, consider the following before executing FEATURE TO POLYGON with the CAD data: Use any valid line and point feature class, including CAD polylines and points to create the input line features and optional input label features.
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Be discriminating about the CAD data used to get the desired result. Run the FEATURE TO POLYGON tool with a CAD POLYLINE feature class as input to build polygons from CAD data. The FEATURE TO POLYGON tool generates polygons from a linear network of lines, and can optionally include the attributes of point features found to be inside the newly created polygons. There is no standard way to create polygon attributes in CAD, and it is common to include a point, symbol, or text entity inside the inferred boundary as attribution. It is common in CAD to represent polygon features as a network of individual line boundaries rather than closed polygons.
Autocad lisp label polyline how to#
Instructions provided describe how to generate polygons from CAD lines with text, blocks, points or attributes inside. How To: Generate polygons from CAD lines with text, blocks, points or attributes inside Summary