🗺️ Vector Overlay in GIS

Vector Overlay in GIS repository, contains, two main things.

• ArcGIS Pro Project
• md Docs

argis-project contains .geodatabases both inputs and output, tool-wise that were used in this project alongside maps, with the used symbology in the project.

docs consists of markdown documents written as a kind of notes and summary on the topic.

The site is hosted with GitHub Pages using the Just the Docs theme for clean navigation and automatic in‑page Table of Contents.

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📑 Contents

• Intersect → Features overlapping in all input layers
• Union → Combines features from multiple layers
• Erase → Removes features from input based on erase layer
• Identity → Updates input features with identity layer attributes
• Update → Replaces input polygons with update polygons
• Clip → Extracts input features within clip extent

Each tool section includes:

• Technical specifications
• Input/Output rules based on geometry hierarchy (Point, Line, Polygon)
• Valid input combinations
• Example figures with visual outputs
• ArcPy function references

Each geodatabase includes:

• is mobile geodatabase.
• separate input and output folders.
• separate tool-wise.
• namings aren't consistent among the .geodatbase though they are rather obvious.

Then results are in png in figures, again tool-wise.

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🚀 Hosted Pages

This repository is published via GitHub Pages.
You can it all here:

👉 Live Site

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📐 Geometry Rules

Overlay tools follow the same or lesser dimension rule:

• Polygon input present → Output can be Polygon, Line, or Point
• Line input present → Output can be Line or Point
• Point input only → Output can only be Point

Geometry hierarchy:
Polygon (2D) > Line (1D) > Point (0D)

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📆 History

This is actually a do-over of a project I did, on latex, trying to get out of writing practical notebook of GIS in my bachelors, in January, 2024. That file is provided in docs/src/.

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🐍 ArcPy Functions

Each tool is documented with its ArcPy function signature, e.g.:

arcpy.analysis.toolname(in_features, out_feature_class {**params})

📷 Figures

Example figures are included for each tool, showing input layers and resulting outputs.
Figures are stored under:

/assets/figures/

Organized by tool (e.g. 01.union/, 02.intersect/, 03.clip/).

Releases

The ArcGIS pro Project used in for this can be downloaded from the Release Page Here.

🛠️ How to Use

Clone the repository:

git clone https://def-fun7.github.io/vector_overlay_gis/
cd vector_overlay_gis

📄 License

This project is licensed under the MIT License. See LICENSE for details.