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JavaScript OCAD file reader and exporter for GeoJSON, SVG and Mapbox Style Spec

A web based app for orienteering course setting and exploration

JavaScript library for mobile-friendly interactive maps

Find shortest path through a network of GeoJSON

Put realtime data on a Leaflet map

Control for routing in Leaflet

A simple geocoder form to locate places. Easily extended to multiple data providers.

Change, convert, transform, reproject GeoJSON between different projections / CRS

Make queries to OpenStreetMap's overpass API and output as GeoJSON

Rust implementation of the book Ray Tracing in One Weekend

Generate maps of sun and shade from OpenStreetMap data

A short, free and open introduction to the concept of tiled maps

Query hgt files (typically SRTM elevation data) with performance

Elevation data for your GeoJSON as a micro service

Add juicy elevation data to your fresh GeoJSON

Find interesting features is in your map using Mapbox Vector Tiles data

Support for GraphHopper in Leaflet Routing Machine

Make it easy to touch things in Leaflet

Sveriges landskap som öppen geodata i GeoJSON

Convert GeoJSON into Wavefront OBJ format

A complete user interface for routing within an OpenLayers map

Calculate slope (climb and descent) for highway ways in OpenStreetMap data.

Convert elevation data (typically SRTM elevation data, HGT files) to Wavefront OBJ 3D models

Quickly add multiple styles to GeoJSON data

Simple but awesome web based tools for GIS enthusiasts

IOF orienteering control descriptions as SVG

Convert OpenStreetMap buildings and roads into Wavefront OBJ 3D models.

Generate Wavefront OBJ 3D models from OpenStreetMap XML or JSON

A simple Leaflet plugin for powerful raster functions

Blast multi-band rasters to a canvas with speed and style.

Web UI from gps-log

Bike routing for Sweden

Find locations where there has been no movement, a stop, within a GeoJSON track, typically recorded from a GPS

DEPRECATED. Support for Mapbox directions API v4 in Leaflet Routing Machine

Web based course setting for orienteering

Fly over a map route using Mapbox GL (small demo)

JSON format for describing map tilesets.

Create map or tile layer from TileJSON, with projection support

Create raster images and tiles (image pyramids) from OCAD map files

"Let's learn Leaflet.js" presentation for Maptime GBG 2016-02

Experiment making a Leaflet plugin using the Svelte framework

Simple GeoJSON viewer based on Leaflet

Slack bot to inform about important stats from Counter Strike Source's Rankme plugin

TileJSON support for Leaflet

Find a suitable local projection from GeoJSON data

Simple import of tracks for GPS

A complete user interface for routing with Mapbox GL JS

Server side of a simple Vechile Routing Problem solver built on jsprit

My solutions for Advent of Code

Simplistic log rotation utility

Web app for logging your GPS tracks. Written in Django.

Interactive great circle distance calculator

Minimalistic database migration tool

Very basic memory game I made for my kids

Smooth Proj4js integration with Leaflet.

mapnik renderer backend for tilelive

Export tree observations from Trädportalen

Toying around with making voxel landscapes from height maps

Short introduction to turf.js @ gbgnodejs meetup

JavaScript library to transform coordinates from one coordinate system to another, including datum transformations

Enjoy Mapbox's cloudless atlas

Imports swedish Lantmäteriverkets (Swedish land survey) GSD shape file data to PostGis and makes the structure a bit like OpenStreetMap's

Friendly bot to present daily electricity price analysis

Quickly render parts of an OCAD file, for example for creating tiled maps

Interactive map to plan hikes along Bohusleden

Pet project to help me navigate Skåneleden

Basic SPA to display hiking trails. Highly focused of Swedish trails for now.

POC webapp to track Radio Online Controls (ROC) for orienteering

CO² emission calculator for JavaScript

Intro presentation on Leaflet for Knowabunga 2017-11-17

Simplest possible JavaScript comparison function, as a module

No description.

Insert SVG into a PDF document created with PDFKit

Dapper - a simple object mapper for .Net

Examine orienteering (OCAD) maps in the field

Illustration of problem with SMUI's snackbar component

Rotate feature interaction for OpenLayers

A WebGL voxel path tracer

Cloud Optimized GeoTIFF creation and validation plugin for rasterio

tilelive source for simple rasters, both local and remote

Node module that returns metadata about spatial files.

geotiff.js is a small library to parse TIFF files for visualization or analysis. It is written in pure JavaScript, and is usable in both the browser and node.js applications.

Implements the tilelive api for a variety of data sources

Implements the tilelive API for generating mapnik vector tiles from traditional mapnik datasources.

Abstract, shared components for map routing

A crude gravitational simulator that probably isn't of much use to you

oauth-login-http

Experimental procedural terrain

Access token validation middleware for Zeit's Micro

A place for small graphical experiments

Holiday Calendar for .NET

Simplistic location based game to find to a location using simulated radio location.

Extract data about Leaflet plugins by scraping and using GitHub and GitLab APIs

Leaflet Routing Machine plugin with support for OSRM version 4

What happens in Counter Strike Source should not stay in Counter Strike Source

Display arbitrary GeoJSON on a map with a timeline slider and play button

Filter out noisy points from an input geojson lineString

No description.

A Leaflet Plugin that renders Mapbox Vector Tiles on HTML5 Canvas.

A lightweight NaturalDocs-like LeafletJS-style documentation generator

Gobble plugin to generate Leafdoc (:leaves:doc) documentation.

writing about mapping is like dancing about architecture

A presentation on Leaflet Underneath for Geoinquietos in Madrid 20160401

Fast and flexible Javascript library for working with OpenStreetMap data.

An example of how to use node-canvas to create an animation as a GIF and a Video

Generate drivetime isochrones from OpenStreetMap data using OSRM

Modular rewrite of the OSRM frontend using LRM

Android client to show aircraft in your vicinity

No description.

Blog archive of http://per.liedman.net/, which will cease to exist in the future