styxman / elevation

Scripts for generating maps based in OSM and SRTM

elevation's Issues

generate_tiles.py - mapnik.load_map flag

Hi,

I think you might maintain the most updated/functional version of generate_tiles.py.

I would suggest to consider revising the hardcoded setting of the strict flag in mapnik.load_map.

Possibly, it might be set to False like

mapnik.load_map(self.m, mapfile, False)

or alternatively parametrized through a command-line option.

It will avoid errors like:

RuntimeError: Failed to find font face 'unifont Medium' in FontSet 'book-fonts'

How to install generate_tiles.py

As your generate_tiles.py version needs python-3.6 and related prerequisites, I have put here a possible installation procedure including python 3.6:

# Download generate_tiles.py
wget https://raw.githubusercontent.com/StyXman/elevation/master/generate_tiles.py
wget https://raw.githubusercontent.com/StyXman/elevation/master/map_utils.py

# Install python-3.6
sudo apt-get install build-essential python-dev python-setuptools libboost-python-dev libboost-thread-dev -y
sudo add-apt-repository -y ppa:jonathonf/python-3.6
sudo apt-get update
sudo apt-get install -y python3.6
sudo apt-get install -y python3.6-dev

# Install python-3.6 prerequisites
wget https://bootstrap.pypa.io/get-pip.py
sudo python3.6 get-pip.py
sudo python3.6 -m pip install --upgrade pip setuptools wheel
sudo python3.6 -m pip install shapely

# Install python-3.6 python-mapnik
git clone -b v3.0.x https://github.com/mapnik/python-mapnik
cd python-mapnik
BOOST_PYTHON_LIB=boost_python-py35 python3.6 setup.py install
cd ..

Additional notes:

• generate_tiles.py requires to have the XML file in the current directory.
• When running generate_tiles.py, you might get the following error if python3.6 is not installed: /usr/bin/env: ‘python3.6’: No such file or directory
• Tou might get the following error if map_utils.py is not downloaded: ModuleNotFoundError: No module named 'map_utils'

generate_tiles.py -i needs the style in the current directory

Just to inform, the way the -i option is currently implemented requires to have the XML file in the current directory of generate_tiles.py.

This for instance produces an error even if the file does exist:

cd ~/src
./generate_tiles.py -i ~/src/openstreetmap-carto/style.xml -o ~/src/Tiles

RuntimeError: Could not load map file: File does not exist of 'style.xml'