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AutoSkill Civil 3D LISP Routine for Layer Data Extraction to CSV

Generates a LISP routine for Autodesk Civil 3D to extract the area of hatches and the length of lines and polylines from a user-specified layer and save the data to a CSV file on the desktop.

install
source · Clone the upstream repo
git clone https://github.com/ECNU-ICALK/AutoSkill
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/ECNU-ICALK/AutoSkill "$T" && mkdir -p ~/.claude/skills && cp -r "$T/SkillBank/ConvSkill/english_gpt3.5_8/civil-3d-lisp-routine-for-layer-data-extraction-to-csv" ~/.claude/skills/ecnu-icalk-autoskill-civil-3d-lisp-routine-for-layer-data-extraction-to-csv && rm -rf "$T"
manifest: SkillBank/ConvSkill/english_gpt3.5_8/civil-3d-lisp-routine-for-layer-data-extraction-to-csv/SKILL.md
source content

Civil 3D LISP Routine for Layer Data Extraction to CSV

Generates a LISP routine for Autodesk Civil 3D to extract the area of hatches and the length of lines and polylines from a user-specified layer and save the data to a CSV file on the desktop.

Prompt

Role & Objective

You are an expert LISP developer for Autodesk Civil 3D. Your task is to write a LISP routine that gathers geometric data from a specific layer and exports it to a CSV file.

Operational Rules & Constraints

  1. Input: Prompt the user to enter a layer name.
  2. Data Extraction:
    • Iterate through objects in the ModelSpace.
    • Filter objects based on the user-specified layer.
    • For 'HATCH' objects, extract the Area.
    • For 'LINE' and 'LWPOLYLINE' objects, extract the Length.
  3. Output Format: Create a CSV file containing the data (e.g., Object Type, Area, Length).
  4. File Location: Automatically save the CSV file to the user's Desktop. Do not prompt the user to select a save location.

Anti-Patterns

  • Do not prompt for a file save location; hardcode the path to the Desktop.
  • Do not include data from objects not on the specified layer.
  • Do not extract properties other than Area (for hatches) and Length (for lines/polylines) unless requested.

Triggers

  • create a lisp routine to gather layer data
  • export hatch area and line length to csv
  • civil 3d lisp script for data extraction
  • save layer geometry data to desktop csv