Introduc)on to InVEST ArcGIS Tool

Transcription

1 Introduc)on to InVEST ArcGIS Tool Nasser Olwero GMP, Bangkok April

2 Background of tool design Why a tool/arcgis Tool?

3 ArcGIS Geoprocessing Framework 1. Tool dialog 2. Command line 3. Model builder 4. ScripOng (ArcObjects, Python, VB ) a) The python geoprocessing object

4 Why Python? 1. Supported by ESRI 2. Simple, easy to learn and use 3. Robust 4. Extensible 5. Flexible

5 InVEST InstallaOon process InVEST: The ApplicaOon Get InVEST Install the core InVEST applicaoon InVEST staosocs while that runs Check installaoon InVEST Marine Extensions

6 InVEST: The ApplicaOon InVEST is a framework for mapping Ecosystem Services and evaluaong tradeoffs. InVEST The So/ware consists of A set of Python scripts dependent on ArcGIS generally one per model biophysical and valuaoon module Base datasets Some required, some opoonal DocumentaOon

7 Where to get InVEST InVEST is released as a Windows installer downloadable from our website h`p://

8 AlternaOve Download OpOons We offer alternaove downloads for InVEST users with slow Internet connecoons: Full (296 MB) Models Only (56.7 MB) Individual datasets (variable sizes)

9 InVEST InstallaOon Procedure 1. Copy InVEST_2.2.2_Full_Setup.exe to your desktop (or other locaoon) 2. Double click the icon to start the installaoon process 3. By default the InVEST toolset will copy itself to C:\InVEST_2_2_2 and take 1.9 GB of disk space. 4. This is will take a few minutes.

10 Checking Your InstallaOon Open your file explorer and check for a directory in C:\InVEST_2_2_2

11 Checking Your InstallaOon In C: \InVEST_2_2_2 you ll find an ArcMap document and an ArcToolbox Open the ArcMap document and add the toolbox if necessary

12 You ll End up With this

13 Complete InstallaOon Enable SpaOal Analyst Extension Install Marine Python Extensions Non- English Language in Windows? We might need to change the decimal symbol and digit grouping symbol.

14 Enable SpaOal Analyst Extension Most InVEST models require the SpaOal Analyst Extension Customize -> Extensions -> Spatial Analyst

15 InVEST Marine Extensions Visit Navigate to the download page Download the Marine Python Extensions for your version of Arc (9.3 or 10). Install each of the installers: matplotlib numpy pywin32 Scipy

16 Check Marine Extensions Run the Marine Python Extension Check

17 ArcGIS Licensing and ArcToolbox 1. Licensing ArcView, ArcEditor, Arcmap, SpaOal Analyst 2. ArcGIS Tools and Toolboxes

18 Loading toolbox (tbx)

19 Seing script source

20 Seing tool parameters 1 2

21 Running model

22 Progress and error reporong Custom errors

23 Windows Language Seings Some InVEST models require that floaong point values are separated by decimals. A problem in some non- English languages Windows 7 Users: Go to Control Panel - > Clock, Language and Region Under Region and Language choose "Change the date, Ome or number format Easiest thing to do: Set Format to English (United States) OR: To just do commas and periods, click "AddiOonal seings..." then change values in "Decimal symbol" to. and "Digit grouping symbol to, Windows XP Users: Control Panel - > Regional and Language OpOons Easiest thing to do: Under the Regional OpOons tab, pick English (United States) from the drop- down OR: To just do commas and periods, click "Customize..." then change values in "Decimal symbol" to. and "Digit grouping symbol to,

24 InVEST Versioning Scheme is the major version number An increment means change of planorm or architecture is the minor version number This increments as new models are added to the suite is the release number This increments when bugs are fixed and released with no new funcoonality

25 Release Schedule Generally we release a new InVEST version every 3-5 months: InVEST /13/2008 InVEST /16/2008 InVEST /17/2009 InVEST /10/2009 InVEST /12/2010 InVEST /13/2010 InVEST 2.0 2/16/2011 InVEST 2.1 5/13/2011 InVEST /17/2011 InVEST /22/2012 InVEST /22/ InVEST 3.0 will be the big one in late 2012

26 Folder/file/column naming: 1. No spaces 2. Use shorter names 3. Avoid special characters(eg hyphen) 4. Naming consistency.

27 ChangeLog

28 ProjecOons 1. Data should be in meters 2. All data should have same projecoon 3. If possible, project the vector to match raster and not the other way round.

29 Sopware versions 1. ArcGIS 9.3, Python 2.4, Extensions 1. SpaOal Analyst 2. Numpy 3. Scipy (See specific models)

30 Data locking 1. ArcGIS and Python are separate 2. Close files before running model.

31 ResoluOon and file size 1. Set working resoluoon on tool interface 2. High resoluoon takes Ome to compute, demanding on computer resources 3. Set resoluoon based on the model.

32 Results suffix 1. Uniquely idenofies each run 2. Restricted to 1 character 3. Parameter log file records input

33 User Support for InVEST Online user s guide, also included with the InVEST install. Need addioonal support or file a bug report? richsharp@stanford.edu InVEST user listserv launched

34 EdiOng tables 1. Edit in ArcMap OR Excel* 2. Excel 2007 does not save dbf 3. ArcGIS 9.2 does not read xlsx 4. Use Open office.

35 Under the hood (advanced)

36 InVEST 3.0 Preview

37 Who Downloads InVEST? We started tracking user analytics on October 23, Prior to that we had about 2000 downloads. InVEST (released 10/17/2011) 164 downloads InVEST (released 12/22/2011) 889 downloads InVEST (released 1/22/2012) 55 downloads

38 Who Downloads InVEST? Breaking down InVEST downloads per country for those > 3% Country Percent of InVEST Downloads United States 23.99% China 22.61% Brazil 4.27% South Korea 4.04% Mexico 3.69% South Africa 3.34%