Generate static map images from TileJSON configuration and draw stuff on top with GeoJSON.
Printlet supports an extended version of TileJSON for declaring custom map projections. The specification resides here.
Intended for use as a library Printlet also comes with a thin HTTP API as an example of implementation but also for practical use.
var printlet =render = ;;
$ brew install cairo --without-x
Note: This might cause some problems. Please report issues if Printlet wont build after this step.
# For freetypeexport LIBPNG_CFLAGS=`/usr/local/opt/libpng/bin/libpng-config --cflags`export LIBPNG_LDFLAGS=`/usr/local/opt/libpng/bin/libpng-config --ldflags`# For cairobrew link libpng --forcebrew install --env=std cairo --without-xbrew link cairo --forcebrew link pixman --forcebrew link freetype --force
$ sudo apt-get install libcairo2-dev libjpeg8-dev libpango1.0-dev libgif-dev build-essential g++
$ sudo yum --enablerepo=updates-testing install npm cairo-devel
Drop "--enablerepo=updates-testing" if you're on F19 or greater.
$ npm install -g printlet
Now point your browser to http://localhost:41462/12/11.95/57.7/800x600.png and get a nice view of Göteborg using a default OSM TileJSON.
Grab your favorite TileJSON and point Printlet to it. There is an example TileJSON with a custom projection to try out here.
$ printlet 41462 your/tile.json
Open browser to same URL as previous step to check it out.
$ git clone$ cd printlet$ npm install
There is a minimalistic map image generator in the examples folder to get the basic gist of the Printlet lib.
Also there is a more advanced implementation using the GeoJSON drawing capabilities as a HTTP server.
At the moment styles for GeoJSON is defined in the
properties attribute of
a GeoJSON feature as a dictionary called
style. The keys under
are the same as the HTML5 canvas API for styling shapes.
Exceptions to the canvas properties is
marker which is possible to define for
Point and describes how points are drawn with images, text or a