Locking figure axis for quiver loop
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I have code for figure with superimposition of temperature image and quiver plot in loop.
But it image shifts every loop if side arrows exceed length of 1 pixel. How i can lock image or scale arrows?
[x,y]=meshgrid(1:1:31,1:1:38);
k=4997;
cnt=0;
heat_conductivity=28;
d=4;
for i=1:k
[dTdx,dTdy] = gradient(V(:,:,i));
u(:,:,i) = -heat_conductivity*dTdx;
v(:,:,i) = -heat_conductivity*dTdy;
end
f=figure('Renderer', 'painters', 'Position', [10 10 600 620]);
ax=gca;
ax.XLim = [1 38];
ax.YLim = [1 31];
%f.WindowState='maximized';
for i=1:k
%figure
imagesc(V(:,:,i));
axis tight
hold on
q=quiver(x,y,v(:,:,i),u(:,:,i))
%q.AutoScale='on';
q.AutoScaleFactor=0.9;
q.ShowArrowHead='on';
%q.MaxHeadSize= 1;
q.AlignVertexCenters='on';
q.LineWidth=0.5;
q.MaxHeadSize=1;
q.Color='black';
%axis tight
colormap jet
colorbar
caxis([26 35])
cnt=i;
title(cnt);
pause (0.1)
clf;
end
![untitled.png](https://www.mathworks.com/matlabcentral/answers/uploaded_files/234452/untitled.png)
![untitled2.png](https://www.mathworks.com/matlabcentral/answers/uploaded_files/234453/untitled2.png)
4 commentaires
Alexandr Lozak
le 19 Août 2019
Modifié(e) : Alexandr Lozak
le 19 Août 2019
Adam
le 19 Août 2019
axis tight
in the loop is what caused the original behaviour, by fitting tightly around each new set of quivers
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