This is a fork of a forked heightmap builder (sysoppl/Cities-Skylines-heightmap-generator)

Roblox online heightmap generator

Online heightmap generator for Roblox https://ribzix.github.io

Features

• easy to use interface
• takes a 4.58 x 4.58 km square from a map which equates to 16384 x 16384 studs. The minumum size for the square is 0.56 x 0.56 km which equates to 2000 x 2000 studs-
• can produce png, raw images and zip packages
• exports .osm files which you can convert to geojson in order to use S1xty`s GeoJSON City loader plugin

How to

1. Select area that you want to download
   
   Green zone shows playable tiles

2. Choose the options that suit you
   

3. To download use one of available options
   

Info panel

You can modify settings in info panel for your height map so it fits your needs.

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Original text by original author below

Settings

• Sea level: the height that will be used as sea level. For land adjacent to the sea or ocean, this will usual be 0.
  For land located in mountains, this will usual be the minimum height of the square.

• height scale: When the scale is 100%, the map is transferred 1:1 to Roblox. When the scale is above 100%, heights are stretched, giving mountains more accent.

• Below sea level: the is the depth that can be dug in the land before hitting absolute minimum. Handy for creating lakes at sea level, or canals that are at sea level.

• rise only land: the sea level is kept at 0 meters, but the land gets a extra rise. This creates the possibility of creating land that is risen a small amount out of the sea. When all is raised, it creates the possibility to create a lake, when land is not adjacent to the ocean.

Settings examples:

• A square has a minimum height of 200 meters and a maximum height of 2200 meters (like the Alps), auto settings are calculated like this:
  Sea level is set to 200 meters, Height scale to 50%, below sea level to 5 meters and all land is raised. By setting only land rise, and below sea level to 10, the land will raise 10 meters out of the sea. In the map editor from cities, the sea level can also be adjusted. Wen set to 9 meters, this gives a shoreline that is risen 1 meter out of the sea.

• A square has a minimum height of 0 meters and a maximum of 350 meters (like San Francisco), auto settings are calculated like this:
  Sea level is set to 0 meters, Height scale to 300%, below sea level to 20 meters and only land is raised.

Frequently asked questions

Q: when downloading the map Chrome says heightmap.raw is not commonly downloaded and may be dangerous
A: just click on the arrow up and choose keep. Height maps are not dangerous at al ;)