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Hong Tang Ian D. Bishop P. M. Yates Center for Geographic Information System and Modeling

Systems Design Options for Linking GIS, Modeling and Visualization: Application to Forest Management. Hong Tang Ian D. Bishop P. M. Yates Center for Geographic Information System and Modeling The University of Melbourne. Geographic Information System in Forest Management.

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Hong Tang Ian D. Bishop P. M. Yates Center for Geographic Information System and Modeling

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  1. Systems Design Options for Linking GIS, Modeling and Visualization:Application to Forest Management Hong Tang Ian D. Bishop P. M. Yates Center for Geographic Information System and Modeling The University of Melbourne -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  2. Geographic Information System in Forest Management • spatial data capture • data storage • data manipulation • display • report • ... -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  3. Forest Decision Support System GIS + Additional tools = SDSS such as: resource & environmental modeling realistic visualization, ... -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  4. The Ideal Forest Decision Support System The objective: • present current condition of forest • forecast forest succession • predict impacts of management decisions • make better decision -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  5. The Ideal Forest Decision Support System The available tools: • GIS : ArcView, ArcInfo... • Modeling: forest growth & yield models • Visualization: OpenGL, IRIX Performer toolkits GIS Visualization Modeling -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  6. Integration - the purposes • minimizes the development effort • maximize the functionality of each module • promise the rapid application design -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  7. Integration - the methodologies • stand alone applications - no integration GIS Modeling VIS. -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  8. Integration - the methodologies • data exchange - loose integration File exchange File exchange Modeling GIS visualization USER -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  9. Integration - the methodologies • closer linkages - tight integration full integration 2 interfaces 1 interface many others: merged, enhanced, customised, embedded... -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  10. Client/server integration Client RPCs/DDE/ Server AppleEvents, etc Client-Server Paradigm -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  11. Messages Passing Processes -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  12. The purpose of developing system • closely links GIS, modeling and visualizations • provides full set of function for forest management • provides different form of visualization which is accessible to different users -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  13. Data sets and formats supported • Arc/Info coverages: forest stands, road, creeks, DEM • ArcView shape files: • Images data: satellite images, aerial photos, sampled textures • Object file: stores the geometry and other properties (textures, etc) -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  14. Implementation of integration methodologies Visualization RPCs GIS(ArcView) (PFV)Modeling Message passing system Forest Decision Support System -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  15. Highlight PID Grow Years Harvest PID … ... Agreements Communication protocols GIS PFV -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  16. File conversions GIS ---> Visualization • Pid 2 Obj - convert polygon coverage to .obj file, use PID as common identifier between GIS and PFV • Arc 2 Obj - convert user drawn polygon to object file Visualization ---> GIS • view position • polygon identification -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  17. System architecture -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  18. Overview of the system • ArcView (Model integrated), Visualization (PFV) • Shell window • 2 way communications • interactive, real-time decision support • image realism • Friendly interface, easy control -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

  19. Overview of the system -------------------- Hong Tang Center for GIS and Modeling The University of Melbourne Australia ----

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