This Lisp function, automates the export process of selected AutoCAD points to a user-specified CSV file. Here's a breakdown of its functionalities:
User Interaction:
Prompts the user to enter a desired filename for the exported data.
Offers a default filename ("points_output.csv") if no input is provided and automatically adds the ".csv" extension if missing.
Allows customization of text height for point labels within the drawing. Offers a default value (0.40) if no input is provided.
Enables configuration of a point name prefix (e.g., "P") and starting number for the sequence. Defaults to "P" for prefix and 1 for starting number if no input is given.
Functionality:
Creates a temporary layer named "points_to_CSV" with a yellow color for visual reference of exported points.
Extracts coordinates (X, Y, Z) for each selected point.
Generates unique point names based on the defined prefix and starting number.
Writes point names and their corresponding coordinates to the specified CSV file.
Places text labels with the generated point names at the corresponding point locations within the drawing.
It may be worthwhile providing a sample dwg with the "selected AutoCAD points" clearly shown, the task is not a hard one. Really need to know what is a "Point".
