contourplot_forces(model,Z,vmax,Tmax,Pmax,deltav,deltaT,tit)

function contourplot_forces(model,Z,vmax,Tmax,Pmax,deltav,deltaT,tit)
%PLOT_FORCES3D
%plot_forces3D(model,Z,vmax,Tmax,Pmax,deltav,deltaT,tit,cmap)
%this function plots the 3D traction force as a function of speed and
%torque for a given model, maximum values for speed, torque and power
%should be given, and also speedstep and torquestep, a title and a colormap
%are inputs.

if not(isnumeric(model))
% if isnumeric(model)
%     errordlg('the requested model does not exist in the given directory','bad input','modal')
% else

% make a new grid with max speed, max Torque and Speed step and Torque step
vgrid = 0:deltav:vmax;
Tgrid = 0:deltaT:Tmax;

for k=1:length(vgrid)
hulp(((k-1)*(length(Tgrid))+1):k*length(Tgrid),:)=[vgrid(k).*ones(length(Tgrid),1) Tgrid'];
end
Xnew = hulp;
Ynew = simlssvm(model,Xnew);

%Remove point above the powerlimit and the torquelimit
for i=1:length(Xnew)
    if or(Xnew(i,1)/3.6*Xnew(i,2)/Z>Pmax,Ynew(i)>120)
            Ynew(i)=NaN;
        end
        if Xnew(i,2)>Tmax
            Ynew(i)=NaN;
        end
    end

    
%Prepare to mesh
[Xen Yen]=meshgrid(vgrid,Tgrid);

for k=1:length(vgrid)
        ZZ(:,k)=Ynew(((k-1)*length(Tgrid))+1:k*length(Tgrid));
end  

  
set(text,'fontsize',12)
[C,h]=contour(Xen,Yen,ZZ);
clabel(C,h);
axis([0 vmax 0 Tmax]);
title(tit,'fontsize',14)
xlabel('Speed [km/h]')
ylabel('Torque [Nm]')

else
     errordlg('there are no models found for this assistance mode','Bad Input','modal')
end
%end