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Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Eduardo Mattenet Consultant 2013 Using Open Source desktop.

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Presentation on theme: "Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Eduardo Mattenet Consultant 2013 Using Open Source desktop."— Presentation transcript:

1 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Eduardo Mattenet Consultant 2013 Using Open Source desktop Quantum GIS

2 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines GIS Concepts & Overview

3 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines An integration of five basic components  People:  People: This is the most important component in a GIS. People must develop the procedures and define the tasks of the GIS. People can often overcome shortcomings in other components of the GIS, but the best software and computers in the world cannot compensate for the incompetence of people.  Data:  Data: The availability and accuracy of data can affect the results of any query or analysis.  Hardware:  Hardware: Hardware capabilities affect processing speed, ease of use, and the type of output available.  Software:  Software: This includes not only actual GIS software, but also various database, drawing, statistical, imaging, or other software.  Procedures:  Procedures: Analysis requires well-defined, consistent methods to produce accurate, reproducible results.

4 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines GIS visualized x y Geographic reference Visualize the geographic data as theme layers in the computer, with each layer linked to a common geo- referencing system

5 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines GIS functions QueryQuery AnalyzeAnalyze StoreStore DisplayDisplay CaptureCapture OutputOutput

6 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Capturing data Hardcopy maps GPSGPS Coordinate s Digital data GI S Satellite Imagery

7 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Storing data - Raster formats - Use square cells to model reality - Vector formats - Discrete representations of reality

8 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Representing features in vector data Real-world entities are abstracted into three basic shapes PointsPoints HospitalsHospitals LinesLines StreetsStreets Areas/PolygonsAreas/Polygons Land uses

9 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Table Join A GIS at least consists of a database, digital layer, map information, and a computer-based links 678 265 954 Bldg ID Property ID OwnerYearType OwnerAreaAddress 678265954 44/11044/4344/93 44/11044/4344/93 Digital Map (spatial data) Computerized Tabular Data (Database) Carol Day 25,000 14 Blair Str.

10 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Query Identifying specific features Parish with a population greater than 2,000 and less than 6,000 (6,000 > x > 2,000) Parish with a population greater than 2,000 and less than 6,000 (6,000 > x > 2,000) Identifying features based on conditions

11 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Output.qgp QGIS projects (map documents) QGIS projects (map documents) GIS Data.jpg.tiff.bmp ImageImage Paper map QGIS Server (.qpg projects using WMS) QGIS Server (.qpg projects using WMS)

12 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Analysis Which parcels are within 50 feet of the road? Proximity Overlay Network

13 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Display Maps

14 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines QGIS Overview

15 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines How do I refer to Quantum GIS? QGIS is spelled in all caps. There are various subprojects of the QGIS project, to avoid confusion refer to each by its name: QGIS Library - this is the C++ library that contains the core logic that is used to build the QGIS user interface and other applications. QGIS Application - this is the desktop application that you know and love so much :-). QGIS Mapserver - this is a server-side application based on the QGIS Library that will serve up your.qgs projects using the WMS protocol.

16 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Quantum GIS is open source Quantum GIS is open source software; this means: The software source code can be freely viewed and modified, The GPL places a restriction that any modifications you make must be made available to the QGIS project, and that you can not create a new version of QGIS under a 'closed source' license. For more info QGIS home page: http://qgis.orghttp://qgis.org

17 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Quantum GIS Installation Quantum GIS Installs on Windows 1.Windows: tested on XP, Windows 7 2. Mac OS X: tested on 10.6, 10.7 3. Linux: tested on Ubuntu (10.x,12.04) & Debian Lenny(6)

18 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines QGIS Installation Windows 7 / Vista / XP 1)Download QGIS "Windows Standalone Installer" 1.8.0 Lisboa from http://www.qgis.org/ 2)Save the File to your machine 3)Double click on the.exe file to install 4)Accept the install defaults to complete the process 5)Launch QGIS

19 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Installing QGIS on Mac OS X 1. Download complete instructions in PDF format 2. Quick and dirty install as follows: download the following packages from KyngChaos Wiki 3. GDAL Complete 4. GSL framework 5. Freetype framework 6. Cairo framework 7. GRASS 8. QGIS 9. Install all packages * 10. launch QGIS ( * ) Installation, including sub- packages install in the following order: 1. GDAL Complete 2. NumPy (sub-package of GDAL Complete) 3. GSL framework 4. Freetype Framework 5. Cairo Framework 6. GRASS 7. GRASS GDAL plugin.mkpg (sub- package of GRASS) 8. open Terminal and as Superuser or Root run the command: export PATH=/Library/Frameworks/GDAL.fram ework/Programs:$PATH 9. QGIS

20 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Installing QGIS on LINUX Installing on Ubuntu [10.04]/[12.04] 1. you need to use the ppa name: ppa:ubuntugis/ppa 2. open Terminal and run command: sudo add-apt-repository ppa:ubuntugis/ppa 3. expect a result that gets keyserver for ppa which looks like: Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv 6B827C12C2D425E227EDCA75089EBE08314DF160 gpg: requesting key 314DF160 from hkp server keyserver.ubuntu.com gpg: key 314DF160: public key "Launchpad ubuntugis-stable" imported gpg: Total number processed: 1 gpg: imported: 1 (RSA: 1) 4. now, to get the new ppa: sudo apt-get update 5. now you should be able to install QGIS and get all the needed packages and dependencies: sudo apt-get install qgis

21 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Overview of QGIS application QGIS Application share common QGIS modules: QGIS Desktop, QGIS Browser, QGIS Plugins

22 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines QGIS Browser A window into your database! Browse your data View data documentation (metadata) View attribute table Manage WMS Create new shape file Set layers CRS

23 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Multiple Spatial data formats RasterRaster TablesTables QGIS Data formats QGIS ShapefileShapefile Internet Map Service Geospatial database

24 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Managing Spatial Data w/QGIS Browser -Uniform way to view your data sources -Four views: Param, Metadata, Preview, Attributes -Create your data sources: shapefiles -Drag and drop your data sources into the your project file.qgs Important Note Never use Windows Explorer for this task. It doesn’t recognize the established file connections for the data formats

25 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Param Tab - Large icons - List - Details - Thumbnails - Data - Layers

26 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Preview Tab -Preview layer content

27 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Attributes Tab -Preview attribute table content -Sort fields Ascending / descending -Preview attribute table content -Sort fields Ascending / descending

28 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Metadata Tab Metadata tab Description Spatial Reference system

29 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Create New Spatial Data Click on “New Shapefile” icon Shapefile: point, line, polygon feature class

30 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Set Layer’s CRS Assign/define a CRS to a layer Override default CRS by selecting a different projection

31 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines QGIS Plugins Quantum GIS has plugins that extend its functionality  Data conversion, managing coordinate systems, changing map projections …  Data management, spatial analysis tools

32 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Getting help Help  Contents  What’s this? (F1)  API documentation  QGIS Home page Check QGIS Version  About  QGIS Support

33 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines Question?

34 Exposure Mapping Assistance Workshop - April 2013 - Kingstown St. Vincent and the Grenadines QGIS Applications Lab Activity QGIS Desktop, QGIS Browser, QGIS Plugins QGIS Plugins


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