Plot Zero on a Contour Plot
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I'm plotting z values, 0 to 10, on a contour plot.
When I include data 1 or greater, I obtain a contour plot. Like the following:
longitude = [80 82 95]
latitude = [30 32 35]
temp = [1 4 6; 1 2 7; 3 5 7]
contourf(longitude,latitude,temp)
Now, I want to plot the ZERO VALUE also on the contour plot. While I was expecting one color representing the zero value, instead I obtained a white square.
longitude = [80 82 95]
latitude = [30 32 35]
temp = [0 0 0; 0 0 0; 0 0 0]
contourf(longitude,latitude,temp)
Amanda
1 件のコメント
Doug Hull
2012 年 11 月 27 日
Where on the original set of temp data is there an isoline of values equal to zero? The answer is nowhere! That is why you are not getting a zero value. In the second example, all the data is zero, so it is a degenerate problem.
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