principles of ArcGis Gokhale Lecture13_BGTD.ppt

GIS

1. GEOL 403/503 GEOL 403/503
Principles of GISPrinciples of GIS
Bhushan GokhaleBhushan Gokhale
Ted DunsfordTed Dunsford
Fall 2007Fall 2007

2. Lecture 13Lecture 13
Other GIS software - IDRISI, Other GIS software - IDRISI,
MapWindowMapWindow

3. IDRISI AndesIDRISI Andes

Is it an acronym?Is it an acronym?
A scholar of
international reputation
in the Mediterranean
world (1100-1166
A.D.)
Geographer and
cartographer

4. IDRISI Andes - cont.IDRISI Andes - cont.

Different explorerDifferent explorer

Similar to ArcCatalogSimilar to ArcCatalog

Different extensionsDifferent extensions

.rst.rst

.rdc.rdc

.rgf.rgf

.sig.sig

.sgf.sgf

.vct.vct

Etc.Etc.

5. IDRISI Andes - cont.IDRISI Andes - cont.

Supports different data Supports different data
formatsformats
Satellite-Based Scanning
Systems
LANDSAT, SPOT,
QuickBird, Other
Desktop publishining
formats
JPG, GEOTIFF/TIFF, BMP
ESRI
Shapefiles
Quickbird - Infrared

6. Different FormatsDifferent Formats

7. Different Formats - cont.Different Formats - cont.

8. Different Formats - cont.Different Formats - cont.

9. Different Formats - cont.Different Formats - cont.

10. IDRISI AndesIDRISI Andes

11. IDRISI Andes - cont.IDRISI Andes - cont.

Set your environmentSet your environment

Working folderWorking folder

Resource folderResource folder

12. Get your data in IDRISIGet your data in IDRISI

Add a category fieldAdd a category field

Rasterize the data in Rasterize the data in
ArcGIS based on ArcGIS based on
category fieldcategory field

Bring the data in as Bring the data in as
TIFF/GEOTIFFTIFF/GEOTIFF

Convert to IDRISI Convert to IDRISI
format format

13. Rasterization Rasterization

Copy spatial Copy spatial
parameters from the parameters from the
satellite imagesatellite image

Create a blank rasterCreate a blank raster

Name it ‘traningsites’Name it ‘traningsites’

14. IDRISI Andes - cont.IDRISI Andes - cont.

Convert the data to Convert the data to
vector format using vector format using
‘RASTERVECTOR’‘RASTERVECTOR’

Rasterize the vector Rasterize the vector
data by updating the data by updating the
‘trainingsites’ file‘trainingsites’ file

15. TransformationsTransformations

Data reductionData reduction

Noise removalNoise removal

Better classificationBetter classification

16. Vegetation IndicesVegetation Indices

IDRISI can generate IDRISI can generate
vegetation indicesvegetation indices

Red band and Red band and
infrared band are infrared band are
usedused

Sometimes soil Sometimes soil
reflectance is reflectance is
consideredconsidered

17. Image Classification Image Classification

Hard classifiersHard classifiers

Soft classifiersSoft classifiers

18. ArcGIS to IDRISIArcGIS to IDRISI

Tool for bringing Tool for bringing
ArcGIS data into ArcGIS data into
IDRISIIDRISI

19. Key things to remember Key things to remember
Format of the data - import/exportFormat of the data - import/export
The data may needThe data may need

Enhancement Enhancement

TransformationsTransformations
File extensionsFile extensions

Group fileGroup file

Signature fileSignature file
For better map making you may have to For better map making you may have to
use ArcGISuse ArcGIS

20. Map Window GISMap Window GIS

21. Why MapWindow?Why MapWindow?

Open Source = FREE!Open Source = FREE!

Easy to useEasy to use

Programmable Active X controlProgrammable Active X control

Ability to develop plug-insAbility to develop plug-ins

22. How do I get MapWindow?How do I get MapWindow?

Simply go to the website Simply go to the website
www.mapwindow.orgwww.mapwindow.org

23. www.MapWindow.Orgwww.MapWindow.Org

24. Click Download NowClick Download Now

26. Click on MapWindow GIS Click on MapWindow GIS
ApplicationApplication

27. Follow the instructionsFollow the instructions

After downloading, install the software.After downloading, install the software.

You can start the application using the You can start the application using the
icon added to your desktop.icon added to your desktop.

28. Map Window GISMap Window GIS

29. Add DataAdd Data

30. Some useful websitesSome useful websites

http://www.geoplan.ufl.edu/software.htmlhttp://www.geoplan.ufl.edu/software.html
http://opensourcegis.org/

31. DemoDemo

IDRISIIDRISI

MapWindowMapWindow

Exercise Exercise