A visual programming language for spatial modelling in GIS |
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| Authors: | GREGORY HADDOCK PIOTR JANKOWSKI |
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| Institution: | Department of Geology and Geography, Northwest Missouri State University, 800 University Drive, Maryville, Missouri 64468–6001, USA. e-mail:;Department of Geography, University of Idaho, Moscow, Idaho 83844–3021, USA. e-mail: |
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| Abstract: | An integration between a visual programming environment and GIS has been developed to create and run spatial models. The visual programming environment provides graphical objects to create flowchart-like models of spatial phenomena using GIS data. The integrated system is object-oriented and designed to lessen the technical burdens of GIS programming. The system capabilities are demonstrated using a hydrological model example, and the model execution speed is compared with an equivalent model implementation in a traditional raster-based modelling system. |
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