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What is terraingen?

ardupilot/terraingen — explained in plain English

Analysis updated 2026-07-17 · repo last pushed 2026-04-21

★ 14PythonAudience · ops devopsComplexity · 3/5MaintainedSetup · moderate

In one sentence

A Flask website that generates downloadable elevation terrain data from SRTM satellite data for ArduPilot drone flight controllers.

Mindmap

mindmap
  root((terraingen))
    What it does
      Generates terrain data
      Packages ZIP files
      Uses SRTM elevation data
    Tech stack
      Python
      Flask
      SRTM
    Use cases
      Prep drone terrain data
      Fly autonomous missions
      Visualize elevation data
    Audience
      Drone pilots
      ArduPilot hobbyists
      Contributors

Code map

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filefunction / class

What do people build with it?

USE CASE 1

Download a ZIP of terrain elevation data for a specific flight region and load it onto a drone's SD card.

USE CASE 2

Run autonomous ArduPilot missions with accurate altitude and safety data for the area.

USE CASE 3

Use included scripts to visualize, check quality, or downsample elevation data.

USE CASE 4

Self-host the site with the provided systemd service configuration.

What is it built with?

PythonFlaskSRTM

How does it compare?

ardupilot/terraingen0c33/agentic-aiadennng/stock_strategy_lab
Stars141414
LanguagePythonPythonPython
Last pushed2026-04-21——
MaintenanceMaintained——
Setup difficultymoderatehardhard
Complexity3/54/54/5
Audienceops devopsdeveloperresearcher

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 30min

Requires Flask setup and access to pre-generated SRTM terrain data.

No license information is provided in the explanation.

Copy-paste prompts

Prompt 1
Help me generate terrain data for my drone's flight region using this tool.
Prompt 2
Explain how this project converts SRTM satellite data into DAT files for ArduPilot.
Prompt 3
Show me how to run this Flask terrain generator locally for development.
Prompt 4
Walk me through using the included scripts to check terrain data quality.

Frequently asked questions

What is terraingen?

A Flask website that generates downloadable elevation terrain data from SRTM satellite data for ArduPilot drone flight controllers.

What language is terraingen written in?

Mainly Python. The stack also includes Python, Flask, SRTM.

Is terraingen actively maintained?

Maintained — commit in last 6 months (last push 2026-04-21).

What license does terraingen use?

No license information is provided in the explanation.

How hard is terraingen to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is terraingen for?

Mainly ops devops.

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