Free and Open Source GIS

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This is the presentation given at Idlelo 4, on 20 May 2010. The topic for the presentation is on Free and Open Source GIS.

Transcript of Free and Open Source GIS

Presentation by:Nico Elema

GIS Global Image (Pty) Ltdwww.globalimage.co.za

Free and Open Source GIS

www.globalimage.co.zawww.gipapyrus.com

WHY Geographical Technologies?

Because a map speaks a thousand words!

What is a GIS?What is a GIS?

GIS is an abbreviation for geographic GIS is an abbreviation for geographic information system, which isinformation system, which is computer software that maps andcomputer software that maps and

analyzes geographic data analyzes geographic data

A GIS links location (spatial or maps) and A GIS links location (spatial or maps) and database (tabular) information and database (tabular) information and enables a person to visualize patterns, enables a person to visualize patterns, relationships and trends.relationships and trends.

Polygonsi.e. Properties

What is a GIS?What is a GIS? (Continue)(Continue)

Pointsi.e.Trees

Linesi.e. water pipelines

Spatial or Map (Raster or Vector)This is a vector map… Database (Tabular)

Still Defining GISStill Defining GIS

System

What do you need to use GIS?What do you need to use GIS?A full GIS, or geographic information A full GIS, or geographic information SYSTEMSYSTEM,, requires: requires:HardwareHardwareSoftwareSoftwareDataDataPeoplePeopleTrainingTrainingProcessesProcesses

GIS ComponentsGIS Components

GIS

HardwareComputers, Networks, Printers, Plotters, Digitizers

SoftwareGIS software, Database software, OS software, Network software

DataVector, Raster, Images, Attribute

Methods or processesGuidelines, Specifications, Standards, Procedures

PEOPLEAdministrators, Managers, Technicians, End users, Consumers

Ultimate definition of a GISUltimate definition of a GIS

It’s a TOOL.It’s a TOOL.

Oxford Dictionary defines a tool as:1. Instrument held in the hand and used for

working on2.Anything used to DO or ACHIEVE

GIS is about DATA, not SOFTWARE

Data is information, Knowledge (or know-how) has to do with the process of learning, understanding, and applying information.

Beekeeper

Source: James Dixon: Pentaho

Source: James Dixon: Pentaho

Source: James Dixon: Pentaho

OSS Solution

•Unlimited desktop and browser users •GIS & Db License fees: R0.00 •(Excluding servers)

ESRI Solution:

•MS SQL; Oracle; PostgreSQL (database)•ArcGIS Server – Standard (SDE + Map serving on web)•ArcEditor (1 license)(Edit maps on desktop)•ArcView ( 15 nonc licenses (3 per LA)) for Desktop analysis

•PostgreSQL (database)•PostGIS (spatially enables PostgreSQL)•Mapserver (Internet map generator)•MapWindow GIS (desktop GIS analysis and capture)

•15 non-concurrent desktop users; unlimited browser viewers.•1 GIS user that can edit data.•

•Min GIS License fees:~R420 000.00 ~(US$ 53 800.00)(excluding server and Database software)

Software Type GIS Software Database Software

Licensed software

• ESRI• MapInfo• AutoDesk MapGuide• IDRISI• Planet GIS

• Oracle• MS SQL• MS Access• ADABAS• Informix• dBase• Sybase

Proprietary software

MapMagic

Open Source Software

• MapWindow GIS• Quantum GIS (QGIS)• GRASS

•MySQL•PostgreSQL•OpenOffice.org base

GIS software   Free OpenSource Windows Mac OS X  Linux  BSD Unix Web  

Autodesk No Yes No Yes No No Yes

CARIS No Yes No Yes Yes Yes Yes

Chameleon Yes Yes Yes Yes Yes Yes Yes

eica ERDAS IMAGINE Yes No Yes No No No Yes No

ESRI No Yes No Yes No Yes Yes

GRASS Yes Yes Yes Yes Yes Yes Yes via pyWPS

ClarkLabs IDRISI No No Yes No No No No No

Intergraph [1] No No Yes No No No CLIX Yes

Pitney Bowes MapInfo No Yes No Yes No Yes Yes

UMN MapServer Yes Yes Yes Yes Yes Yes Yes

Caliper Maptitude No No Yes No No No No Yes

MapWindow GIS Yes Yes Yes (ActiveX)

No No No No No

Oracle Spatial No No Yes Yes Yes No Yes Yes

Orbit GIS home NoFlash & AJAX & Javascript

PostGIS Yes Yes Yes Yes Yes Yes Yes Yes

Quantum GIS Yes Yes Yes Yes Yes Yes Yes Yes

Smallworld No No Yes No Yes ? Yes Yes

Caliper TransCAD No No Yes No No No No Yes

TerraLib TerraView Yes Yes Yes No Yes No No No

uDIG Yes Yes Yes Yes Yes No No No

The power of a GIS:

Find all the market centres in Kenya that are within a 10km distance from major roads.

Problem: Kenya has more than 1600 towns. Which ones of them are market centres? How do I define a major road? I cannot go and measure, by vehicle or foot, the distance

each town is from the major road – IT WILL TAKE ME AGES!!

WITH A GIS IT CAN TAKE ME 5 minutes!

GIS Application Development:

Papyrus Integrated GIS

Papyrus Integrated GIS

www.gipapyrus.com

Papyrus Integrated GIS

www.gipapyrus.com

Papyrus Integrated GIS

www.gipapyrus.com

Papyrus Integrated GIS

www.gipapyrus.com

Papyrus Integrated GIS

www.gipapyrus.com

Papyrus Integrated GIS

www.gipapyrus.com

Papyrus Integrated GIS

www.gipapyrus.com

More GIS Magic!

Census 2001 & Cadastre 2007

Census 2001 & SPOT 2006/7

2001 Census & 2006/7 SPOT Imagery

IDENTIFYING HOUSEHOLD GROWTH 2001 - 2007

QUANTIFYING HOUSEHOLD GROWTH 2001 - 2007

CLASSIFYING FORMAL CADASTRE

STATSSA DWELLING FRAME 2007

Even more GIS Magic!

USHAHIDI

www.ushahidi.com

Stay in contact...

Contact:

nico@globalimage.co.za

www.globalimage.co.za

www.gossrc.org

LinkedIn: NicoElema

Twitter: @TheGISguy