function out=flyBurHandData(data,numFlies,roi)

%flyBurHandData(data,roi)

for i=1:numFlies
    inx=data(:,2*i+1);
    iny=data(:,2*i+2);
    width=roi;
    
    out={};
    out.x=inx;
    out.y=iny;
    out.r=sqrt((inx-width/2).^2+(iny-width/2).^2);
    out.theta=atan2(iny-width/2,inx-width/2);
    
    out.direction=zeros(size(inx,1),1);
    out.speed=zeros(size(inx,1),1);
    out.turning=zeros(size(inx,1),1);
    
    for i=1:size(inx,1)
        
        if mod(i,1000) ==1
            i
        end
        
        if i > 1
            out.direction(i)=atan2(iny(i)-iny(i-1),inx(i)-inx(i-1));
            out.speed(i)=sqrt((iny(i)-iny(i-1))^2+(inx(i)-inx(i-1))^2);
            if i>2
                out.turning(i)=out.direction(i)-out.direction(i-1);
                if out.turning(i) >pi()
                    out.turning(i)=out.turning(i)-2*pi();
                end
                if out.turning(i) < -pi()
                    out.turning(i)=out.turning(i)+2*pi();
                end
            end
        end             
    end
end

out.speed(out.speed>12)=NaN;