OpenDEM Generator

Create your own Digital Elevation Model




Luca Delucchi - Markus Neteler

Idea

Needs

Create high resolution DEM from several existing standardized (Open data) dataset

Idea

Problems

  • different resolutions
  • different projection systems
  • different formats
  • final product could be really big

Idea

Solution

Provide a tool able to download and process the data to obtain our final product

OpenDEM Generator provide a command line tool, but you can use also the Python API

Implementation

Used software

Python logo GRASS GIS logo GDAL logo

Implementation

Configuration file

Configuration file contains all the information about input and output data

Implementation

Configuration file

Configuration file example

Implementation

Download data

Help of download command

Implementation

Process data

Help of proccess command

Hot it works

Original data

Hot it works

Original data

Hot it works

Masked and resampled data

Hot it works

Masked and resampled data

Hot it works

Merged

Hot it works

Merged

Hot it works

First result

FOSS4G 2016 FAQ

Why don't use gdal_merge

  • border problem
  • don't know what is the interpolation method

FOSS4G 2016 FAQ

Oh cool, so I can fix SRTM errors

  • OpenDEM Generator was not designed to do that
  • maybe it could work
  • maybe in the future

Future

Plans

  • logo
  • documentation
  • new input data


Question??


Luca Delucchi

http://www.lucadelu.org

CC-BY-SA license