[Rock-dev] rock-display crash when trying to display Vector3d as subfield

[Leif Christensen]

Hi,

I'm writing a std::vector<base::samples::IMUSensors> to a port.
rock-display can display the Vector3d members of each entry in the
vector, but trying to vizualize one of them with Plot2d crashes
rock-display:

> /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/task_context_proxy.rb:430:in `block in subfield': undefined method `raw_get' for #<Typelib::ContainerType::DeepCopyArray:0x0000000556e6e0> (NoMethodError)
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/task_context_proxy.rb:423:in `each'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/task_context_proxy.rb:423:in `subfield'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/task_context_proxy.rb:348:in `block in on_data'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/task_context_proxy.rb:299:in `block in on_data'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/object_base.rb:51:in `call'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/object_base.rb:51:in `call'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/ports.rb:101:in `really_add_listener'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/object_base.rb:305:in `block in really_add_listener'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/object_base.rb:301:in `each'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/object_base.rb:301:in `really_add_listener'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/ports.rb:300:in `really_add_listener'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/object_base.rb:305:in `block in really_add_listener'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/object_base.rb:301:in `each'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/object_base.rb:301:in `really_add_listener'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/task_context_proxy.rb:294:in `really_add_listener'
> 	from /home/leifole/dev/rock/magneto/tools/orocos.rb/lib/orocos/async/object_base.rb:287:in `block in add_listener'
> 	from /home/leifole/dev/rock/magneto/tools/utilrb/lib/utilrb/event_loop.rb:158:in `call'
> 	from /home/leifole/dev/rock/magneto/tools/utilrb/lib/utilrb/event_loop.rb:158:in `call'
> 	from /home/leifole/dev/rock/magneto/tools/utilrb/lib/utilrb/event_loop.rb:615:in `block in step'
> 	from /home/leifole/dev/rock/magneto/tools/utilrb/lib/utilrb/event_loop.rb:704:in `call'
> 	from /home/leifole/dev/rock/magneto/tools/utilrb/lib/utilrb/event_loop.rb:704:in `handle_errors'
> 	from /home/leifole/dev/rock/magneto/tools/utilrb/lib/utilrb/event_loop.rb:615:in `step'
> 	from /home/leifole/dev/rock/magneto/gui/vizkit/lib/vizkit/vizkit.rb:142:in `block in exec'
> 	from /usr/lib/ruby/vendor_ruby/1.9.1/Qt/qtruby4.rb:2427:in `call'
> 	from /usr/lib/ruby/vendor_ruby/1.9.1/Qt/qtruby4.rb:2427:in `invoke'
> 	from /usr/lib/ruby/vendor_ruby/1.9.1/Qt/qtruby4.rb:469:in `qt_metacall'
> 	from /usr/lib/ruby/vendor_ruby/1.9.1/Qt/qtruby4.rb:469:in `method_missing'
> 	from /usr/lib/ruby/vendor_ruby/1.9.1/Qt/qtruby4.rb:469:in `exec'
> 	from /home/leifole/dev/rock/magneto/gui/vizkit/lib/vizkit/vizkit.rb:146:in `exec'
> 	from /home/leifole/dev/rock/magneto/gui/vizkit/bin/rock-display:107:in `<main>'
> 	from /home/leifole/dev/rock/magneto/tools/utilrb/lib/utilrb/event_loop.rb:622:in `step'
> 	from /home/leifole/dev/rock/magneto/gui/vizkit/lib/vizkit/vizkit.rb:142:in `block in exec'
> 	from /usr/lib/ruby/vendor_ruby/1.9.1/Qt/qtruby4.rb:2427:in `call'
> 	from /usr/lib/ruby/vendor_ruby/1.9.1/Qt/qtruby4.rb:2427:in `invoke'
> 	from /usr/lib/ruby/vendor_ruby/1.9.1/Qt/qtruby4.rb:469:in `qt_metacall'
> 	from /usr/lib/ruby/vendor_ruby/1.9.1/Qt/qtruby4.rb:469:in `method_missing'
> 	from /usr/lib/ruby/vendor_ruby/1.9.1/Qt/qtruby4.rb:469:in `exec'
> 	from /home/leifole/dev/rock/magneto/gui/vizkit/lib/vizkit/vizkit.rb:146:in `exec'
> 	from /home/leifole/dev/rock/magneto/gui/vizkit/bin/rock-display:107:in `<main>'

In task_context_proxy.rb, the function subfield(sample,field) of class
SubGroupProxy does some checks on types, but only after calling
sample.raw_get . Do I have to do some typelib magic?

Btw, visualizing Vector3d members of IMUSensors not in a container works
fine.

Regards,
Leif

-- 
 Leif Christensen

 DFKI Bremen
 Robotics Innovation Center
 Robert-Hooke-Straße 5
 28359 Bremen, Germany

 Phone: +49 (0)421 17845-4149
 Fax:   +49 (0)421 17845-4150
 E-Mail: leif.christensen at dfki.de

 Weitere Informationen: http://www.dfki.de/robotik
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