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jnkather/distance-2D.m

Created May 27, 2015 18:46
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calculate distance from a given point for a cloud of points, 2D
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distance-2D.m
% JN Kather 2015
% calculate distance from a given point for a cloud of points, 2D
% cloud of points
Pts = rand(500,2);
% calculate distance from P(px|py)
px = 0.5; py = 0.5
distance = sqrt((Pts(:,1)-px).^2 + (Pts(:,2)-py).^2);
% plot
figure()
hold on
plot(px,py,'x','MarkerSize',50,'Color',[0 0 0])
scatter(Pts(:,1),Pts(:,2),25,distance,'filled')
hold off
colorbar
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