==== Import and Export Formats: MTG - Multiscale Tree Graph ====


EXAMPLE - Importing and Using MTG data in GroIMP

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**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