Heatmap from a matrix with scattered values

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Odin Søgnen
Odin Søgnen 2015-6-13
回答： Walter Roberson 2015-6-13
Hi!
I have measured temperatures in differents locations on one floor of a building. I would like to make a heatmap out of these values, but since the values are scattered I need to fill in the blank spots to see the temperature between my measurement points. I don't know how to do this two-dimensionally. How do I do this in MatLAB?
It is a 25x25 matrix which I have attached (Excel). I am already using this code to get a heatmap from my matrix.
A = [25X25 matrix]; %Matrix to draw
colormap('hot'); % set colormap
imagesc(A); % draw image and scale colormap to values range
colorbar; % show color scale

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Walter Roberson
Walter Roberson 2015-6-13

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