Mapping Party

Free Software Movement Karnataka

Camp 07.14

Yogesh K S

What's Mapping Party?

A mapping party is where a group of openstreetmappers and novices descend on an area to map it exhaustively.

Overview

Introduction to Openstreetmap

Introduction to Mapping

Mapping using OSMTracker data

An Introduction to OpenStreetMap

What's OpenStreetMap(OSM)?

A Wikipedia-style platform for maps – open, transparent and editable by anyone with a desire to do so.

Started in 2004, its built by a community of mappers that contribute and maintain free geographic data of the entire planet through collaboration.

Why OpenStreetMap?

(When we have Google, HERE, Bing, and others!)

Present Maps/Geodata isn't

Free (as in Freedom)

Open

Emphasize local knowledge

Wiki is obvious next step

Its just fun

Why do we need free Geodata?

Free Geodata allows generating free AND cusotmized maps.

http://geohackers.in/2013/05/mapping-mandis

With Visulisation..

http://klp.org.in/map

New Ideas and more.:)

Growth of Project

Users: 2.2Million, GPS Points: 4.1Billion, Total Data: 400GB

India Mapping

https://www.mapbox.com/osm-data-report/

Bangalore Mapping

In 2008

https://www.4thmain.github.io/projects/osm/bangalore-mapping.html

Bangalore Mapping

In 2014

https://www.4thmain.github.io/projects/osm/bangalore-mapping.html/

What do I map?

Anything that Physically Exists!
Roads, trails, cafés, railway stations, buildings, lakes, etc.,.
Start with your school or college or any place where you have been
Take a look at the present mapping in India - http://wiki.openstreetmap.org/wiki/India
Join HOT(Humanitarian OpenStreetMap Team) - Mapping for humanitarian response and economic development.

Introduction to Mapping

What do we need?
How do we do?
How the OSM data is structured - Geometry and Tags.

And there are three ways of editing OSM -

Using aerial imagery
Using GPS data(*.gpx) from tracking apps through ground survey
Importing existing geodata which is compatible with ODBl(Open Database License) to OSM.

What do we need?

GPS enabled smartphone with tracking app for ground survey.
Osm registered account.
Tools to convert existing geodata if importing is to be done.

How do we do?

Register and verify a account in osm.
Use any of these popular GUI editors are:

iD - web-based HTML5 editor(easy one)
JOSM - Java based desktop editor(advanced editor)
Poltach - Flash-based web editor(not commonly used now)

Upload the data to OSM.

OSM Data Structure

Geometry --
- Node(Point): Used for mapping Points of Interest(POIs). Ex: Cafe's, Shop, etc.,.
- Ways: Used for mapping Roads, Rivers, etc.,.
- Area: Used for mapping Regional boundaries, Buildings, Forests, etc.,.
Tags --
- Represent how data is saved in OSM.
- They are a type of key-value pair
- Ex: amenity:cafe, name:Coffee day, landuse:forest, etc.,.