Example code:

aviObject = avifile('myVideo.avi');
writerObj.FrameRate = 20; % Optional
for i=0:100
    x=cos(0:0.02:10*pi)+(0:0.02:10*pi)/pi*(1+sin(i/100*pi*4))*2;
    y=sin((0:0.02:10*pi));
    plot(x,y,'linewidth',2);
    axis([-3,50,-1.2,1.2]);
    drawnow;
    set(gcf,'Visible', 'off', 'color', [1,1,1], 'Position', [1, 1, 1024,768]); 
    I=export_fig('-nocrop');
    F = im2frame(I);
    aviObject = addframe(aviObject,F);
    i
end
close;
aviObject = close(aviObject);

ALL= NOPASSWD:/usr/bin/rsync

Then backup the files from the local machine using:

rsync -atz -e "ssh" --rsync-path="sudo rsync" ./local_directory user@server:/path_to_backup

The cheapest source of cameras for robots are broken laptops. In most cases the built-in web camera of a broken laptop is functional and can be easily extracted. Furthermore, most laptops use USB cameras. It is therefore just a matter of replacing the connector and using the camera on a robot (see image below).

I have used a camera from a Sony Vaio on a KUKA YouBot rear bumper.

PS: The laptop speakers are also useful for making the robot talk.

The biggest issue was to stop the smoke from triggering the fire alarm in the building. A smoke chamber was therefore built around the robot.

Unfortunately the respiratory motion simulator has a acrylic body which cased severe refraction and reflection of the laser beam (see image below). Fortunately the thick atmosphere inside the smoke chamber made the incident laser beam visible so the tracking behaviour can still be confirmed visually. This pilot study/experiment has been conducted under severe time constraints. The actual experiments validating our method will involve placing a light sensitive array on a moving tray (removing the acrylic body and thus the undesired optical phenomena).

The ListBox will display labels by iterating through the list and calling the ToString() method of each element.

You might want to change this label for your own classes by overriding ToString() method, otherwise you end up with labels such as “Namespace_name.Object_name”.

Export current active figure using:

set(gcf, 'Visible', 'off', 'Position', [1, 1, width, height]); % 'width' and 'height' are the desided size in pixels
export_fig('pdf', 'transparent', filename, gcf);

or change output format:

export_fig('eps', 'transparent', filename, gcf);

Additionally, glGenTextures cannot be called between glBegin and glEnd calls.

nFrames=100;
frames(1:nFrames) = struct('cdata', [], 'colormap', []);
for i=1:nFrames
  % Do your plotting
  frames(jj)=getframe(gcf);
end
mpgwrite(frames,[],'my_movie.avi');

To convert the movie file into a gif use:

convert -crop 0x0 -loop 0 my_movie.avi my_movie.gif

@rm -f *.o

This can cause problems when the compiler generates an error. In that case you need to catch the error and terminate the make process. You should also generate a message saying which command caused the problem since this command won’t be printed on the screen (The error message will show up though). Use following code to do just that:

default:
    @echo "Compiling helloworld.cpp";
    @gcc helloworld.cpp $(CFLAGS) -o helloworld \
    || (echo "Error in command: gcc helloworld.cpp $(CFLAGS) -o helloworld" && false)

You can either get from http://msinttypes.googlecode.com/svn/trunk/stdint.h or you can use following code for cross platform compatibility:

#ifdef _MSC_VER

typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;

#else
#include <stdint.h>
#endif