I'm trying to learn Gazebo and I'm kinda puzzled about how difficult it is. I'm using the latest LTS version (Gazebo Garden) and following the intro tutorials. I'm manually editing sdf files, with which I'm struggling to create something as simple as a box with 4 wheels. In the UI I can move things around, but I see no option to do something as simple as scaling objects and I'm just manually inserting numbers for shapes, positions and orientations in the XML/sdf file and constantly reload the sdf file with
gz sim my_world.sdf to see what the result is of my little change.
And then I run into models like the ones below. How do people make these complex models? I cannot believe they are manually editing sdf files and reloading them every 5 seconds to see what their edit did. Are they using different programs to construct these models? If so, which ones? Why is there no mention of this in the Gazebo documentation? What am I missing here?
And lastly, where is the Gazebo community? I just found this form, but it seems pretty dead. There have only been 3 questions in the past week. I asked a question, but got no response. Any tips on where to find the community would be great as well.