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2020-08-08 11:40:47 -0500

asked a question

Could NOT find ZeroMQ (missing: ZeroMQ_FOUND)

Could NOT find ZeroMQ (missing: ZeroMQ_FOUND) When doing a cmake on a plugin I get the error: Could NOT find ZeroMQ (mi

2016-04-21 09:50:03 -0500

asked a question

File already exists in database: time.proto in protobuf/descriptor_database erroor?

Hi all,

I’m doing the Contact Sensor tutorial http://gazebosim.org/tutorials?tut=co... In executing the

cd ~/gazebo_contact_tutorial/build;
gzserver ../contact.world

I get the error:

[libprotobuf ERROR google/protobuf/descriptor_database.cc:57] File already exists in database: time.proto
[libprotobuf FATAL google/protobuf/descriptor.cc:1018] CHECK failed: generated_database_->Add(encoded_file_descriptor, size): 
libc++abi.dylib: terminating with uncaught exception of type google::protobuf::FatalException: CHECK failed: generated_database_->Add(encoded_file_descriptor, size): 
Abort trap: 6

My CMakeLists.rxr is:

cmake_minimum_required(VERSION 2.8 FATAL_ERROR)

find_package(gazebo REQUIRED)

include_directories(${GAZEBO_INCLUDE_DIRS})
link_directories(${GAZEBO_LIBRARY_DIRS})
list(APPEND CMAKE_CXX_FLAGS "${GAZEBO_CXX_FLAGS}")

add_library(contact SHARED ContactPlugin.cc)
target_link_libraries(contact ${GAZEBO_LIBRARIES} ${Boost_LIBRARIES})


set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${GAZEBO_CXX_FLAGS}")

The OS is Mac Yosemite. Gazebo is 6.0. My cmake and make has no errors.

Any help is appreciated.

2016-02-22 10:57:51 -0500

asked a question

Laser ray sensor not detecting object in plugin?

Hi all,

I’m new to Gazebo and I couldn’t find any examples that show the examination of a laser sensor data in a plugin.

I’m using a model plugin and I inserted a box model in the gui. The visual ray shows the box stopping the ray. But, when I displayed the min, max range and the fidtance from a deted object. The distance from the object is always infinite.

= 0.08 max_distance = 10 current_distance = inf

The model.sdf is:

<?xml version="1.0" ?>
<sdf version="1.5">
  <model name="ab_robot">
    <link name="chassis">
      <pose>0 0 0.16 0 0 0</pose>
      <inertial>
        <mass>5.67</mass>
        <!-- interias are tricky to compute -->
        <inertia>
          <ixx>0.07</ixx>
          <iyy>0.08</iyy>
          <izz>0.10</izz>
          <ixy>0</ixy>
          <ixz>0</ixz>
          <iyz>0</iyz>
        </inertia>
      </inertial>
      <collision name="collision">
        <geometry>
          <box>
            <size>0.445 0.277 0.17</size>
          </box>
        </geometry>
      </collision>
      <collision name="castor_collision">
        <pose>-0.200 0 -0.12 0 0 0</pose>
        <geometry>
          <sphere>
            <radius>0.04</radius>
          </sphere>
        </geometry>
        <surface>
          <friction>
            <ode>
              <mu>0</mu>
              <mu2>0</mu2>
              <slip1>1.0</slip1>
              <slip2>1.0</slip2>
            </ode>
          </friction>
        </surface>
      </collision>
      <visual name="visual">
        <pose>0 0 0.04 0 0 0</pose>
        <geometry>
          <mesh>
            <uri>model://pioneer2dx/meshes/chassis.dae</uri>
          </mesh>
        </geometry>
      </visual>
      <visual name="castor_visual">
        <pose>-0.200 0 -0.12 0 0 0</pose>
        <geometry>
          <sphere>
            <radius>0.04</radius>
          </sphere>
        </geometry>
        <material>
          <script>
            <uri>file://media/materials/scripts/gazebo.material</uri>
            <name>Gazebo/FlatBlack</name>
          </script>
        </material>
      </visual>
    </link>
    <link name="right_wheel">
      <pose>0.1 -.17 0.11 0 1.5707 1.5707</pose>
      <!-- Note that the following is inertial not inertia! -->
      <inertial>
        <mass>1.5</mass>
        <!-- Note that the following is inertia not inertial! -->
        <inertia>
          <ixx>0.0051</ixx>
          <iyy>0.0051</iyy>
          <izz>0.0090</izz>
          <ixy>0</ixy>
          <ixz>0</ixz>
          <iyz>0</iyz>
        </inertia>
      </inertial>
      <collision name="collision">
        <geometry>
          <cylinder>
            <radius>0.11</radius>
            <length>0.05</length>
          </cylinder>
        </geometry>
        <surface>
          <friction>
            <ode>
              <mu>100000.0</mu>
              <mu2>100000.0</mu2>
              <slip1>0.0</slip1>
              <slip2>0.0</slip2>
            </ode>
          </friction>
        </surface>
      </collision>
      <visual name="visual">
        <geometry>
          <cylinder>
            <radius>0.11</radius>
            <length>0.05</length>
          </cylinder>
        </geometry>
        <material>
          <script>
            <uri>file://media/materials/scripts/gazebo.material</uri>
            <name>Gazebo/FlatBlack</name>
          </script>
        </material>
      </visual>
    </link>
    <link name="left_wheel">
      <pose>0.1 .17 0.11 0 1.5707 1.5707</pose>
      <!-- Note that the following is inertial not inertia! -->
      <inertial>
        <mass>1.5</mass>
        <!-- Note that the following is inertia not inertial! -->
        <inertia>
          <ixx>0.0051</ixx>
          <iyy>0.0051</iyy>
          <izz>0.0090</izz>
          <ixy>0</ixy>
          <ixz>0</ixz>
          <iyz>0</iyz>
        </inertia>
      </inertial>
      <collision name="collision">
        <geometry>
          <cylinder>
            <radius>0.11</radius>
            <length>0.05</length>
          </cylinder>
        </geometry>
        <surface>
          <friction>
            <ode>
              <mu>100000.0</mu>
              <mu2>100000.0</mu2>
              <slip1>0.0</slip1>
              <slip2>0.0</slip2>
            </ode>
          </friction>
        </surface>
      </collision>
      <visual name="visual">
        <geometry>
          <cylinder>
            <radius>0.11</radius>
            <length ...

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2020-08-08 13:47:30 -0500	commented question	Could NOT find ZeroMQ (missing: ZeroMQ_FOUND) I had previously installed zeromq with brew. The C+ code is the velodyne example. I get this failure on all my plugins t
2020-08-08 11:40:47 -0500	asked a question	Could NOT find ZeroMQ (missing: ZeroMQ_FOUND) Could NOT find ZeroMQ (missing: ZeroMQ_FOUND) When doing a cmake on a plugin I get the error: Could NOT find ZeroMQ (mi
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2016-04-21 09:50:03 -0500	asked a question	File already exists in database: time.proto in protobuf/descriptor_database erroor? Hi all, I’m doing the Contact Sensor tutorial http://gazebosim.org/tutorials?tut=co... In executing the `cd ~/gazebo_contact_tutorial/build; gzserver ../contact.world` I get the error: `[libprotobuf ERROR google/protobuf/descriptor_database.cc:57] File already exists in database: time.proto [libprotobuf FATAL google/protobuf/descriptor.cc:1018] CHECK failed: generated_database_->Add(encoded_file_descriptor, size): libc++abi.dylib: terminating with uncaught exception of type google::protobuf::FatalException: CHECK failed: generated_database_->Add(encoded_file_descriptor, size): Abort trap: 6` My CMakeLists.rxr is: `cmake_minimum_required(VERSION 2.8 FATAL_ERROR) find_package(gazebo REQUIRED) include_directories(${GAZEBO_INCLUDE_DIRS}) link_directories(${GAZEBO_LIBRARY_DIRS}) list(APPEND CMAKE_CXX_FLAGS "${GAZEBO_CXX_FLAGS}") add_library(contact SHARED ContactPlugin.cc) target_link_libraries(contact ${GAZEBO_LIBRARIES} ${Boost_LIBRARIES}) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${GAZEBO_CXX_FLAGS}")` The OS is Mac Yosemite. Gazebo is 6.0. My cmake and make has no errors. Any help is appreciated.
2016-03-16 12:53:15 -0500	received badge	● Popular Question (source)
2016-02-22 10:57:51 -0500	asked a question	Laser ray sensor not detecting object in plugin? Hi all, I’m new to Gazebo and I couldn’t find any examples that show the examination of a laser sensor data in a plugin. I’m using a model plugin and I inserted a box model in the gui. The visual ray shows the box stopping the ray. But, when I displayed the min, max range and the fidtance from a deted object. The distance from the object is always infinite. = 0.08 max_distance = 10 current_distance = inf The model.sdf is: <?xml version="1.0" ?> <sdf version="1.5"> <model name="ab_robot"> <link name="chassis"> <pose>0 0 0.16 0 0 0</pose> <inertial> <mass>5.67</mass> <!-- interias are tricky to compute --> <inertia> <ixx>0.07</ixx> <iyy>0.08</iyy> <izz>0.10</izz> <ixy>0</ixy> <ixz>0</ixz> <iyz>0</iyz> </inertia> </inertial> <collision name="collision"> <geometry> <box> <size>0.445 0.277 0.17</size> </box> </geometry> </collision> <collision name="castor_collision"> <pose>-0.200 0 -0.12 0 0 0</pose> <geometry> <sphere> <radius>0.04</radius> </sphere> </geometry> <surface> <friction> <ode> <mu>0</mu> <mu2>0</mu2> <slip1>1.0</slip1> <slip2>1.0</slip2> </ode> </friction> </surface> </collision> <visual name="visual"> <pose>0 0 0.04 0 0 0</pose> <geometry> <mesh> <uri>model://pioneer2dx/meshes/chassis.dae</uri> </mesh> </geometry> </visual> <visual name="castor_visual"> <pose>-0.200 0 -0.12 0 0 0</pose> <geometry> <sphere> <radius>0.04</radius> </sphere> </geometry> <material> <script> <uri>file://media/materials/scripts/gazebo.material</uri> <name>Gazebo/FlatBlack</name> </script> </material> </visual> </link> <link name="right_wheel"> <pose>0.1 -.17 0.11 0 1.5707 1.5707</pose> <!-- Note that the following is inertial not inertia! --> <inertial> <mass>1.5</mass> <!-- Note that the following is inertia not inertial! --> <inertia> <ixx>0.0051</ixx> <iyy>0.0051</iyy> <izz>0.0090</izz> <ixy>0</ixy> <ixz>0</ixz> <iyz>0</iyz> </inertia> </inertial> <collision name="collision"> <geometry> <cylinder> <radius>0.11</radius> <length>0.05</length> </cylinder> </geometry> <surface> <friction> <ode> <mu>100000.0</mu> <mu2>100000.0</mu2> <slip1>0.0</slip1> <slip2>0.0</slip2> </ode> </friction> </surface> </collision> <visual name="visual"> <geometry> <cylinder> <radius>0.11</radius> <length>0.05</length> </cylinder> </geometry> <material> <script> <uri>file://media/materials/scripts/gazebo.material</uri> <name>Gazebo/FlatBlack</name> </script> </material> </visual> </link> <link name="left_wheel"> <pose>0.1 .17 0.11 0 1.5707 1.5707</pose> <!-- Note that the following is inertial not inertia! --> <inertial> <mass>1.5</mass> <!-- Note that the following is inertia not inertial! --> <inertia> <ixx>0.0051</ixx> <iyy>0.0051</iyy> <izz>0.0090</izz> <ixy>0</ixy> <ixz>0</ixz> <iyz>0</iyz> </inertia> </inertial> <collision name="collision"> <geometry> <cylinder> <radius>0.11</radius> <length>0.05</length> </cylinder> </geometry> <surface> <friction> <ode> <mu>100000.0</mu> <mu2>100000.0</mu2> <slip1>0.0</slip1> <slip2>0.0</slip2> </ode> </friction> </surface> </collision> <visual name="visual"> <geometry> <cylinder> <radius>0.11</radius> <length ... (more)
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