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02_user_tutorials:mtg:import_mtg

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02_user_tutorials:mtg:import_mtg [2025/12/10 13:14] – removed - external edit (Unknown date) 127.0.0.102_user_tutorials:mtg:import_mtg [2025/12/10 13:14] (current) – ↷ Page moved from 02_new_tutorials:mtg:import_mtg to 02_user_tutorials:mtg:import_mtg gaetan
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 +==== MTG - Multiscale Tree Graph ====
  
 +
 +EXAMPLE - Importing and Using MTG data in GroIMP
 +
 +------------------------------------------------------------------------
 +
 +== ==
 +
 +
 +**NOTE**: In this example, a .mtg file is already imported and a .rgg file has already been added into the project.
 +
 +Begin at step 1 if you wish to find out how to load a .mtg file into GroIMP.
 +
 +Skip to step 6 if you wish to know how to modify the loaded MTG data in this example project.
 +
 +- Start GroIMP
 +
 +- Click on 'File -> Open'. Select a .mtg file.
 +
 +- A file '<name of MTG file selected>-generated.xl' is generated.
 +
 +- 2 files appear in GroIMP's file explorer:
 +
 +<name of MTG file selected>-generated.xl
 +
 +<name of MTG file selected>.mtg
 +
 +- The naming of standard MTG attributes can be seen in the commented section at the beginning of the generated .xl file. In this case, <name of MTG file selected>-generated.xl
 +
 +- To determine if a feature value was specified in the file, use function to return a boolean. E.g.
 +
 +hasXX()
 +
 +hasdist()
 +
 +...
 +
 +- In the 3D view, select "View -> Scales -> Scale 3".
 +
 +Add a .rgg file
 +
 +- In GroIMP's File Explorer (below the 3D view), click on 'Add File'.
 +
 +- Select '<name of RGG file selected>.rgg'.
 +
 +- Click save in GroIMP's text editor view. <name of RGG file selected>.rgg should be successfully compiled now.
 +
 +Save as project
 +
 +- In GroIMP's main top menu bar, click File->Save.
 +
 +- Save the project as .gsz file.
 +
 +- Write a method/function (e.g. run() in this example) in the .rgg file to modify the data.
 +
 +- Once the .rgg file is saved and compiled, a new set of modules are generated in the .xl file and compiled.
 +
 +- The nodes in the graph are replaced with the new modules in the .xl file.
 +
 +- Turn "View -> Scales -> Scale X" off and on to refresh the 3D view. (where X is the scale you want to visualize)
 +
 +- Execute the method/function you wrote (e.g. run() in this example) by clicking on the button with the method name.
 +
 +- Move or rotate the 3D view to refresh and visualize the changes you have made.
 +
 +  - Open an MTG file
 +  - MTG node classes and corresponding GroIMP modules
 +  - MTG feature attributes and GroIMP module variables
 +  - Visualizing the MTG data
 +  - Saving the MTG graph in a GroIMP project
 +  - Modifying the loaded MTG graph