98 lines
3.1 KiB
Markdown
98 lines
3.1 KiB
Markdown
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# Tutorial 6 - Improved Visuals
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## Overview
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This tutorial will cover changing the node icons, changing the background, and changing or hiding links.
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## Files
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Below is the list of files used for this tutorial.
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* drone.png - icon for a drone
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* demo.py - a mobility script for a node
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* terrain.png - a background
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* completed-scenario.xml - the scenario after making all changes below
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## Running this Tutorial
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This section will cover running this sample tutorial that develops a scenario file.
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* Ensure that **/etc/core/core.conf** has **grpcaddress** set to **0.0.0.0**
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* Make sure the **core-daemon** is running in a terminal
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```shell
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sudop core-daemon
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```
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* In another terminal run the GUI
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```shell
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core-gui
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```
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### Changing Node Icons
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* Create three MDR nodes
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<p align="center">
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<img src="/static/tutorial6/create-nodes.png" width="80%">
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</p>
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* Double click on each node for configuration, click the icon and set it to use the **drone.png** image
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<p align="center">
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<img src="/static/tutorial6/configure-icon.png" width="50%">
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</p>
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* Use **Session -> Options** and set **Control Network 0** to **172.16.0.0./24**
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### Linking Nodes to WLAN
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* Add a WLAN Node
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* Link the three prior MDR nodes to the WLAN node
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<p align="center">
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<img src="/static/tutorial6/linked-nodes.png" width="50%">
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</p>
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* Click play to start the scenario
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* Observe wireless links being created
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<p align="center">
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<img src="/static/tutorial6/wlan-links.png" width="50%">
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</p>
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* Click stop to end the scenario
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* Right click the WLAN node and select **Edit -> Hide**
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* Now you can view the nodes in isolation
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<p align="center">
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<img src="/static/tutorial6/hidden-nodes.png" width="50%">
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</p>
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### Changing Canvas Background
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* Click **Canvas -> Wallpaper** to set the background to terrain.png
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<p align="center">
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<img src="/static/tutorial6/select-wallpaper.png" width="50%">
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</p>
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* Click play to start the scenario again
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* You now have a scenario with drone icons, terrain background, links displayed and hidden WLAN node
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<p align="center">
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<img src="/static/tutorial6/scenario-with-terrain.png" width="80%">
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</p>
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## Adding Mobility
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* Open and play the **completed-scenario.xml**
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* Double click on **n1** and run the **demo.py** script
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```shell
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# node id is first parameter, second is total nodes
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/opt/core/venv/bin/python demo.py 1 3
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```
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* Let it run to see the link break as the node 1 drone approches the right side
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<p align="center">
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<img src="/static/tutorial6/only-node1-moving.png" width="80%">
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</p>
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* Repeat for other nodes, double click on **n2** and **n3** and run the demo.py script
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```shell
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# n2
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/opt/core/venv/bin/python demo.py 2 3
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# n3
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/opt/core/venv/bin/python demo.py 3 3
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```
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* You can turn off wireless links via **View -> Wireless Links**
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* Observe nodes moving in parallel tracks, when the far right is reached, the node will move down
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and then move to the left. When the far left is reached, the drone will move down and then move to the right.
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<p align="center">
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<img src="/static/tutorial6/scenario-with-motion.png" width="80%">
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</p>
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