josemarcosrf / GPX-3D-Mapping

GPX 3D Mapping

This repo is a collection of methods and scripts to create 3D Map renders given a GPX track file.

The R scripts r copies or have been inspired by the following repositories:

• edeaster/Routes3D
• fredderks/3DHikeMap

How to

Install

The easiest way to install is to open the repo in Rstudio and upon opening any of the scripts in the editor, a message to install the missing libraries will pop at the top.

Alternatively, check the detailed instructions bellow.

NOTE: Some system wide dependencies might need to be installed. See any package installation error to determine if any is missing.

Show dependencies installation instructions

R packages

Apart from the libraries listed in the scripts itself, you might need to run:

install.packages(c('sf', 'terra', 'rgdal'))

Run

NOTE: You can run all of the commands below with render.sh <your-input-gpx-file>

Show me the commands!

To run the selected rendering script from the R console:

source('3DMapping.R')  # Will prompt for the GPX file as input

This script will save a series of renders as pngs in the Track directory. Then, to compose a GIF from all renders:

cd Track
convert -delay 2 -loop 0 *.png output.gif

# Alternatively (faster but less quality):
ffmpeg -framerate 5 -y -i %02d.png output.gif

# To convert from GIF to video in MP4
ffmpeg -i output.gif \
 -movflags faststart -pix_fmt yuv420p \
 -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" output.mp4