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How do I best create a detailed model of a real parking lot?

asked 2018-07-02 10:11:34 -0500

arzumanov_s gravatar image

Hello all,

I am trying to simulate the parking lot and road outside my building in order to test a vehicle in Gazebo. Originally I used Blender in order to create a .dae file to use in Gazebo, and approximated where all of the buildings and roads go. However, I would like to create a better model that takes into account all of the dips and imperfections of the parking lot and road in order to best simulate the environment. It's pretty crucial that this is as accurate as possible.

I am fairly new to ROS/Gazebo/Blender/etc., but I found varied information regarding DEM and DSM as a possible solution. However, I would like to ask the community if anyone has any experience with this, and what is the easiest and best way for me to accomplish this.

Thank you very much.

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answered 2018-07-03 01:36:23 -0500

Raskkii gravatar image

In my experience with heightmaps, they are not incredibly accurate. The collision is not always quite right (see here: https://bitbucket.org/osrf/gazebo/iss...).

I think when accuracy is vital you're better off going with Blender.

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Thanks so much! Do you know how to easily create bumpy roads in Blender? I have all the roads in the correct places, but am unsure of how to add this bumpiness. Searching through hours of online tutorials yesterday didn't prove helpful as many are outdated or poorly written. Thank you!

arzumanov_s gravatar imagearzumanov_s ( 2018-07-03 07:57:15 -0500 )edit

Hmm, there may be a fancy way to create bumps in your model that I'm not aware of. But I would probably use a combination of subdividing and/or the knife tool to separate the area you want to add bumps to and then using extruding or scaling (bevel tool for making the edges smooth) to shape the bumps. It would probably be kind of a finicky and tedious process but that's my best guess at this point.

Raskkii gravatar imageRaskkii ( 2018-07-03 08:24:37 -0500 )edit
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Asked: 2018-07-02 10:11:34 -0500

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Last updated: Jul 03