Module 2: Working with different data sources

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<h3>[[Module 1: Working with different data sources | Go to previous module: Module 2: Working with different data sources]]
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<h3>[[Module 1: Learning the basic concepts of GeoDMS | Go to previous module: Module 1: Learning the basic concepts of GeoDMS]]
<h3>[[Module 3: Doing basic analyses with vector data | Go to next module: Module 3: Doing basic analyses with vector data]]
<h3>[[Module 3: Doing basic analyses with vector data | Go to next module: Module 3: Doing basic analyses with vector data]]

Revision as of 11:58, 10 August 2020

Different data types

In GeoDMS you can read many different data types:

  • Tables: .csv, .asc, .dbf, .xml, .xdb, .txt
  • Grid raster: .tif, .asc
  • Vector: .shp
  • GeoDMS' own data storage file: .fss
  • Databases: MsAccess, MsExcel, PostgreSQL, PostGIS, FileGeoDatabase

In the following configuration file you'll see example of how you can configure several common data types: download configuration. How to set up this configuration see: Module 0: Install GeoDMS GUI and setup a configuration

Now you should navigate to SourceData and here you'll see serveral types of SourceData listed. Click on the top one called: "Raster_TifData", and press CTRL + E or right-click and choose "Edit Config Source". That will open a text editor, preferably Notepad++




By convention you should configure your configuration in a way that all data that is just being read should be in SourceData, and then when you do any analysis that should be done in the Analysis container. This way there is natural division between the original data and the manipulated data/results.




GeoDMS cannot check whether certain data types have been changed between sessions, i.e. shapefiles. Therefore, it recalculates everything that uses such data types. A way to circumvent this and thefefore speed up repeated calculation is to save such data type to GeoDMS' own data storage file (fss). You have to do that once and then direct expressions towards that disconnected data attribute.




Go to previous module: Module 1: Learning the basic concepts of GeoDMS <h3> Go to next module: Module 3: Doing basic analyses with vector data

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