The Fuzzy Inference System Library is where you load *.fis files so that they are available for use in the Error C alculations tab of the DEM Survey Properties dialog. In the FIS library, you can Add new FIS , Edit or configure an existing FIS and Remove items from the library. The topics at left discuss each of these operations.Adding an FIS to the LibraryTo add an existing FIS is easy. Note that by default, when you install GCD no FIS files are loaded in the library, but two example FIS files are included in the user's roaming folder. These can be found at: c:\Users\<YourUsername>\AppData\Roaming\GCD\FIS Sample Files The two FIS files provided are examples of two input FIS where the inputs are slope and point density, and the output is elevation uncertainty. We do not automtically load FIS files into GCD's Survey library as users should excercise judgement and caution in applying, calibrating and developing appropriate fuzzy inference sytems. When you add a FIS to the library, this video shows what actually happens to the FISLibraryXML.xml file, which is stored in your c:\Users\<YourUsername>\AppData\Roaming\GCD\FISLibrary folder. Every time a FIS is added, another <FISTable> entry gets added to the FISLibraryXML.xml file: <FISTable> <FISID>3</FISID> <Name>GPS_2Input_PD_SLP</Name> <Path>C:\Users\Joe Wheaton\AppData\Roaming\GCD\FIS Sample Files\GPS_2Input_PD_SLP.fis</Path> </FISTable> Removing a FIS from the LibraryRemoving a FIS from the library is as simple as highlighting it and clicking remove. When you remove a FIS from the library, it only removes it from the listing here (i.e. it deletes the corresponding<FISTable>...</FISTable> entry in the FISLibraryXML.xml file. It does not delete the actual *.fis file from your computer.Editing a FIS in FIS LibraryFuzzy Inference System Editor :This video shows you how to edit an FIS using the Fuzzy Inference System Editor: For more information on how fuzzy inference systems for elevation uncertainty work and can be created and modified, see the GCD Concept Reference documentation here. |
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