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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.

1. Open an MTG file
2. MTG node classes and corresponding GroIMP modules
3. MTG feature attributes and GroIMP module variables
4. Visualizing the MTG data
5. Saving the MTG graph in a GroIMP project
6. Modifying the loaded MTG graph