It's a pretty straight-forward problem.
I'm using a slightly modified version of the example libgazebo factory.cc
The following is the relevant part.
stream << "<model:physical name='box1_model_" << i << "'>";
stream << " <xyz>" << i << " " << i << " " << 0.5 << " </xyz>";
stream << " <body:box name='box1_body'>";
stream << " <geom:box name='box1_geom'>";
stream << " <size>1 1 1</size>";
stream << " <mass>0.1</mass>";
stream << " <visual>";
stream << " <size>1 1 1</size>";
stream << " <mesh>unit_box</mesh>";
stream << " <material>Gazebo/Rocky</material>";
stream << " </visual>";
stream << " </geom:box>";
stream << " </body:box>";
stream << "</model:physical>";
printf("Creating[%d]\n",i);
strcpy((char*)factoryIface->data->newModel, stream.str().c_str());
... and later
stream << "box1_model_" << i;
printf("Deleting[%d]\n",i);
strcpy((char*)factoryIface->data->deleteModel, stream.str().c_str());
These are the only changes to the original code. The problem is the
following.
The program factory executes and exits without a problem. The blocks show
up in the simulation as they are created. However, they do not disappear
when they are deleted. When I click on a block that should have been
deleted, gazebo segfaults (understandably) with no error messages.
Backtrace follows:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1210378512 (LWP 16610)]
0x48889c0d in __dynamic_cast () from /usr/lib/libstdc++.so.6
(gdb) bt
#0 0x48889c0d in __dynamic_cast () from /usr/lib/libstdc++.so.6
#1 0x080ea07e in gazebo::OgreAdaptor::GetEntityAt (this=0x821e3c8,
camera=0x8ce2c20, [EMAIL PROTECTED])
at server/rendering/OgreAdaptor.cc:487
#2 0x0812b144 in gazebo::GLWindow::HandleMouseRelease (this=0x82d3190)
at server/gui/GLWindow.cc:204
#3 0x0812b25e in gazebo::GLWindow::handle (this=0x82d3190, event=2)
at server/gui/GLWindow.cc:407
#4 0xb7ddff4a in Fl::pushed () from /usr/lib/libfltk.so.1.1
#5 0xb7de1a03 in Fl::handle () from /usr/lib/libfltk.so.1.1
#6 0xb7e30b10 in fl_handle () from /usr/lib/libfltk.so.1.1
#7 0xb7e31b47 in fl_handle () from /usr/lib/libfltk.so.1.1
#8 0xb7e31d9b in fl_wait () from /usr/lib/libfltk.so.1.1
#9 0xb7de0827 in Fl::wait () from /usr/lib/libfltk.so.1.1
#10 0xb7de0866 in Fl::check () from /usr/lib/libfltk.so.1.1
#11 0x08128a62 in gazebo::Gui::Update (this=0x8238580) at
server/gui/Gui.cc:146
#12 0x08150a21 in gazebo::Simulator::MainLoop (this=0x82111e0)
at server/Simulator.cc:329
#13 0x08134eb8 in main (argc=1221596980, argv=0xb7f23558) at
server/main.cc:293
Is this a bug, or am I doing something wrong?
Thanks,
Bill
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