In RVIZ, why does the aspect ratio with the top-down view change after a selection

asked 2011-03-06 21:16:30 -0600

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updated 2011-03-06 21:19:21 -0600

In RVIZ, with the top-down view, the user can resize the window to any format, and the aspect ratio stays constant (i.e. the squares of the grid are always squares). However, after the user tried to select something, the aspect ratio becomes variables. For example, if the window is 1000 X 500, the grid cells are squeezed and they are displayed twice as large as their height.

Why is that? How can I get rid of this behaviour?

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answered 2011-03-07 03:13:06 -0600

hersh
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updated 2011-03-07 03:14:53 -0600

This is definitely a bug. I've opened this ticket https://code.ros.org/trac/ros-pkg/ticket/4858 about it.

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answered 2011-03-07 04:28:57 -0600

hersh
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Fixed in trunk. To check out and build the latest version, do:

svn co https://code.ros.org/svn/ros-pkg/stacks/visualization/trunk/rviz cd rviz export ROS_PACKAGE_PATH=pwd:$ROS_PACKAGE_PATH rosmake

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answered 2011-03-06 21:18:49 -0600

Benoit Larochelle

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updated 2011-03-06 22:47:02 -0600

I have narrowed down the problem to these two lines:

render_texture->removeAllViewports(); render_texture->addViewport(viewport->getCamera());

inside this function:

SelectionManager::renderAndUnpack

I tried these two alternatives (separately), but they did not change anything:
viewport->getCamera()->setAspectRatio(0.4);
viewport->getCamera()->setAutoAspectRatio(false);

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In RVIZ, why does the aspect ratio with the top-down view change after a selection

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