gz-sim: empty_gui.sdf

[azeey-test]

Configuration

• os: Any

Links

• Source

Process

Step 1 - Instructions work

Step 2 - Images (if there are any) match the result

[avanmalleghem]

Interested in !

[avanmalleghem]

Issue when running the first command (gz sim empty_gui.sdf). The world is not empty and indeed the file https://github.com/gazebosim/gz-sim/blob/gz-sim9/examples/worlds/empty_gui.sdf describes exactly what we can see on the screenshot.

So the tutorial in the sdf file is incorrect. Should I update this tutorial or is it the SDF file that is incorrect ? (and it should effectively be an empty world)

[arjo129]

Yes please update the SDF file!

[avanmalleghem]

After more investigation, I think this SDF makes no-sense with this version. In fact, everything is set up correctly because of the .gz/sim/9/gui.config. I guess it has changed since the latest version (now it adds SelectEntities, InteractiveControl, CameraTracking, VisualizationCapabilities and GzSceneManager plugins). So all the tutorial in this file doesn't make sense anymore.

I think the best option is to remove it completely. If ok for you, I can open a PR.

[iche033]

oh good catch, that's a behavior change in newer versions. This should prevent all other plugins from being loaded:

diff --git a/examples/worlds/empty_gui.sdf b/examples/worlds/empty_gui.sdf
index 0975a4f14..54df8c2e3 100644
--- a/examples/worlds/empty_gui.sdf
+++ b/examples/worlds/empty_gui.sdf
@@ -37,6 +37,10 @@ This example helps illustrate the interaction of the MinimalScene with other GUI
 
   <world name="empty_gui">
 
+    <gz:policies>
+      <include_gui_default_plugins>false</include_gui_default_plugins>
+    </gz:policies>
+
     <gui fullscreen="0">
       <plugin filename="MinimalScene" name="3D View">
         <gz-gui>

Can you see if that works for you? If so, we can keep this demo world

[avanmalleghem]

Indeed, it fix the issue. I created a PR : gazebosim/gz-sim#2591