Difference between revisions of "API2"

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The new API2 is currently under development. The main new features are
+
==Introduction==
* Support for up to 4 cameras
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{|class="wikitable" cellpadding="20" vertical-align="top"
* Support for camera controls like brightness, contrast, auto white balance ... The supported controls depend on the camera used
+
|-
* Integrated web server for controlling Robotino by a web browser or your smartphone
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|[[Image:Robotino_api2_icon_64.png]]
* Easy build process due to minimal dependencies to external libraries
+
|A C/C++ library to access Robotino's sensors and actors from your own program.
 +
|}
  
The new API2 is based on a RPC like infrastructure. The [http://servicerobotics.eu/weitere-projekte/rec-rpc-library/ REC-RPC] library is a interprocess communication middleware similar to ROS. It is based on Qt and does not have any other dependencies.
+
==Download and install==
 +
Check [[Robotino_OS|Robotino OS]] to find the link to the API2 library.
  
===API2 packages for Robotino===
+
===Windows===
In order to use the API2 you need to replace packages on Robotino. The easiest way is to give Robotino Internet access. The file '''/etc/apt/sources.list''' should look like this.
+
On Windows (Visual Studio) you need to install the binary package that fits your compiler. Currently we support two compilers. Please open a command prompt and use ''set'' to see your Visual Studio or Visual Studio Tools version.
 +
 
 +
API2 for
 +
* [http://packages.openrobotino.org/windows/robotino-api2/msvc-12 Visual Studio 2013]
 +
* [http://packages.openrobotino.org/windows/robotino-api2/msvc-140 Visual Studio 2015]
 +
* [http://packages.openrobotino.org/windows/robotino-api2/msvc-141 Visual Studio 2017]
 +
* [http://packages.openrobotino.org/windows/robotino-api2/msvc-142 Visual Studio 2019]
 +
 
 +
==Build examples==
 +
The API2 package comes with examples showing how to use the C/C++ interface.
 +
 
 +
===Linux===
 
<pre>
 
<pre>
deb http://doc.openrobotino.org/download/packages/i386 ./
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mkdir examples
deb http://old-releases.ubuntu.com/ubuntu/ jaunty main restricted
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cd examples
deb-src http://old-releases.ubuntu.com/ubuntu/ jaunty main restricted
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cp -R /opt/robotino/examples/cpp/circle/ circle
 +
cd circle
 +
mkdir build
 +
cd build
 +
cmake ..
 +
make
 
</pre>
 
</pre>
  
 +
===Windows===
 +
* Download and install [https://cmake.org/ cmake].
 +
* Copy c:\program files\rec gmb\api2\examples to a user writable directory.
 +
* Run cmake-gui
 +
* Choose source and destiantion directory
 +
* Configure and Generate
 +
* Open the generated Visual Studio Solution
 +
 +
==Quick links==
 +
* [https://doc.openrobotino.org/download/RobotinoAPI2/rec_robotino_api2/ Documentation]
 +
 +
==C++ example==
 
<pre>
 
<pre>
echo "deb http://doc.openrobotino.org/download/packages/i386 ./" > /etc/apt/sources.list
+
#include <iostream>
echo "deb http://old-releases.ubuntu.com/ubuntu/ jaunty main restricted" >> /etc/apt/sources.list
+
#include "rec/robotino/api2/all.h"
echo "deb-src http://old-releases.ubuntu.com/ubuntu/ jaunty main restricted" >> /etc/apt/sources.list
+
 
</pre>
+
rec::robotino::api2::Com com;
 +
rec::robotino::api2::Bumper bumper;
 +
 
 +
int main( int argc, char **argv )
 +
{
 +
  std::string hostname = "172.26.1.1";
 +
  if( argc > 1 )
 +
  {
 +
    hostname = argv[1];
 +
  }
 +
 
 +
  com.setAddress( hostname.c_str() );
 +
  com.connectToServer( true );
 +
 
 +
  while(com.isConnected() && false == bumper.value())
 +
  {
 +
    std::cout << "Bumper is " << (bumper.value()?"":"not") << " pressed" << std::endl;
 +
    com.processEvents();
 +
    rec::robotino::api2::msleep( 100 );
 +
  }
  
After setting up the sources.list
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  com.disconnectFromServer();
<pre>
 
apt-get update
 
apt-get install rec-rpc-qt4.5.0 robotino-common robotino-daemons robotino-api robotino-examples
 
</pre>
 
  
Questions during the installation process
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  rec::robotino::api2::shutdown();
<pre>
 
Install these packages without verification [y/N]? y
 
Do you want to install symlinks? -> Yes
 
</pre>
 
This will remove the API1 daemons and install the API2 counterparts. Reboot the system when installation is finished.
 
  
Alternatively you can download the packages to your computer. Replace * by the latest version.
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  return 0;
<pre>
+
}
wget http://doc.openrobotino.org/download/packages/i386/rec-rpc-qt4.5.0_*_i386.deb
 
wget http://doc.openrobotino.org/download/packages/i386/robotino-common_*_i386.deb
 
wget http://doc.openrobotino.org/download/packages/i386/robotino_daemons_*_i386.deb
 
wget http://doc.openrobotino.org/download/packages/i386/robotino-api_*_i386.deb
 
wget http://doc.openrobotino.org/download/packages/i386/robotino-examples_*_i386.deb
 
 
</pre>
 
</pre>
  
Then copy the files to Robotino using scp or ftp. On Robotino do
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==C example==
 
<pre>
 
<pre>
dpkg -i rec-rpc-qt4.5.0_*_i386.deb
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#include <stdio.h>
dpkg -i robotino-common_*_i386.deb
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#include <stdlib.h>
dpkg -i --auto-reconfigure robotino-daemons_*_i386.deb
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#include <string.h>
dpkg -i robotino-api_*_i386.deb
 
dpkg -i robotino-examples_*_i386.deb
 
</pre>
 
 
 
===API2 for Windows===
 
  
===API2 for Linux===
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#ifdef WIN32
Setup your '''/etc/apt/sources.list'''. On i386 system
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#include <windows.h>
<pre>
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#else
deb http://doc.openrobotino.org/download/packages/i386 ./
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#include <unistd.h> //usleep
<pre>
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#endif
  
On amd64 systems
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#include "rec/robotino/api2/c/Com.h"
<pre>
 
deb http://doc.openrobotino.org/download/packages/amd64 ./
 
<pre>
 
  
Install the packages
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void msleep( unsigned int ms )
* robotino-api
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{
* robotino-examples
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#ifdef WIN32
* libqt4-dev
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  SleepEx( ms, FALSE );
<pre>
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#else
apt-get install robotino-api robotino-examples libqt4-dev
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  usleep( ms * 1000 );
</pre>
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#endif
 +
}
  
Pre build binaries are in ''/usr/local/robotino/examples/bin''
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ComId com;
 +
BumperId bumper;
  
Build the circle example see section below.
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int main( int argc, char **argv )
 +
{
 +
  com = Com_construct();
  
===Building the API2 examples on Robotino===
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  if( argc > 1 )
<pre>
+
  {
mkdir -p build/circle
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    Com_setAddress( com, argv[1] );
cd build/circle
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  }
ccmake /usr/local/robotino/examples/src/c++/circle/
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  else
configure(c) 2x, generate(g)
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  {
make
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    Com_setAddress( com, "172.26.1.1" );
target/example_circle 127.0.0.1
+
  }
</pre>
 
  
Right now you can run the example as root only. If you change permissions manually
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  if( FALSE == Com_connect( com ) )
<pre>
+
  {
chmod 777 /tmp/*
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    printf( "Error on connect" );
</pre>
+
    exit(1);
you can run the example as user robotino.
+
  }
 +
  else
 +
  {
 +
    char addressBuffer[256];
 +
    Com_address( com, addressBuffer, 256 );
 +
    printf( "Connected to %s\n", addressBuffer );
 +
  }
  
===Build API2 yourself===
+
  while( Com_isConnected( com ) && FALSE == Bumper_value( bumper ) )
 +
  {
 +
    printf("Value of bumper is %d\n",Bumper_value( bumper ) )
 +
    msleep( 50 );
 +
  }
  
Windows:
+
  Bumper_destroy( bumper );
* Get the latest Qt libraries from [http://qt.nokia.com/downloads Digia]
+
  Com_destroy( com );
* Alternatively build Qt from source
 
  
====Build REC-RPC====
+
  return 0;
Get the source via SVN:
+
}
<pre>
 
svn co http://svn.servicerobotics.eu/rec_rpc/trunk source/rec_rpc
 
</pre>
 
Configure the build environment with cmake, build and install:
 
<pre>
 
mkdir build/rec_rpc
 
cd build/rec_rpc
 
ccmake ../../source/rec_rpc
 
make install
 
 
</pre>
 
</pre>
In case you used a 32bit compiler set the environment variable '''RECRPC32_DIR''' to the installation directory. When you compiled the library with a 64bit compiler set the environment variable '''RECRPC64_DIR''' The environment variable is used by the other packages to find the FindRecRpc.cmake scripts.
 
 
Example: On my system I got
 
<pre>RECRPC32_DIR=E:\build\rec-rpc_win32_vc100\install</pre>
 

Latest revision as of 08:24, 10 May 2019

Introduction

Robotino api2 icon 64.png A C/C++ library to access Robotino's sensors and actors from your own program.

Download and install

Check Robotino OS to find the link to the API2 library.

Windows

On Windows (Visual Studio) you need to install the binary package that fits your compiler. Currently we support two compilers. Please open a command prompt and use set to see your Visual Studio or Visual Studio Tools version.

API2 for

Build examples

The API2 package comes with examples showing how to use the C/C++ interface.

Linux

mkdir examples
cd examples
cp -R /opt/robotino/examples/cpp/circle/ circle
cd circle
mkdir build
cd build
cmake ..
make

Windows

  • Download and install cmake.
  • Copy c:\program files\rec gmb\api2\examples to a user writable directory.
  • Run cmake-gui
  • Choose source and destiantion directory
  • Configure and Generate
  • Open the generated Visual Studio Solution

Quick links

C++ example

#include <iostream>
#include "rec/robotino/api2/all.h"

rec::robotino::api2::Com com;
rec::robotino::api2::Bumper bumper;

int main( int argc, char **argv )
{
  std::string hostname = "172.26.1.1";
  if( argc > 1 )
  {
    hostname = argv[1];
  }

  com.setAddress( hostname.c_str() );
  com.connectToServer( true );
  
  while(com.isConnected() && false == bumper.value())
  {
    std::cout << "Bumper is " << (bumper.value()?"":"not") << " pressed" << std::endl;
    com.processEvents();
    rec::robotino::api2::msleep( 100 );
  }

  com.disconnectFromServer();

  rec::robotino::api2::shutdown();

  return 0;
}

C example

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef WIN32
#include <windows.h>
#else
#include <unistd.h> //usleep
#endif

#include "rec/robotino/api2/c/Com.h"

void msleep( unsigned int ms )
{
#ifdef WIN32
  SleepEx( ms, FALSE );
#else
  usleep( ms * 1000 );
#endif
}

ComId com;
BumperId bumper;

int main( int argc, char **argv )
{
  com = Com_construct();

  if( argc > 1 )
  {
    Com_setAddress( com, argv[1] );
  }
  else
  {
    Com_setAddress( com, "172.26.1.1" );
  }

  if( FALSE == Com_connect( com ) )
  {
    printf( "Error on connect" );
    exit(1);
  }
  else
  {
    char addressBuffer[256];
    Com_address( com, addressBuffer, 256 );
    printf( "Connected to %s\n", addressBuffer );
  }

  while( Com_isConnected( com ) && FALSE == Bumper_value( bumper ) )
  {
    printf("Value of bumper is %d\n",Bumper_value( bumper ) )
    msleep( 50 );
  }

  Bumper_destroy( bumper );
  Com_destroy( com );

  return 0;
}