Azzera filtri
Azzera filtri

Options of pcolor lines

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Andreas Christensen Sørensen
Risposto: Walter Roberson il 28 Dic 2018
Hi i have this plot made with pcolor. Is there a way to only include grid lines for the bounded values, I have a lot on NaN values which should not be boxed
best regards

Risposte (2)

Akshay Khadse
Akshay Khadse il 28 Dic 2018
As per my knowledge, it not possible to selectively hide the grid in this case. Following are the two alternatives:
1) Hide the entire grid by using the following:
h = pcolor(X,Y,C);
h.EdgeColor = 'none';
2) Change the X axis limits by using the following:
h = pcolor(X,Y,C);
xlim([-0.6 0.6])
ylim([-0.6 0.6])
This could also be done using the follwing command
axis([-0.6 0.6 -0.6 0.6])

Walter Roberson
Walter Roberson il 28 Dic 2018
pcolor is internally aa call to surf() with edgecolor none followed by aa call to view(2)
so.. turn your grid off and call surf without the edgecolor option and then view(2)
surf puts in edges between any two horizontally or vertically adjacent locations that are both non nan.
surf only puts in faces if aa 2x2 block is all non nan.
It is possible to end up with edges between faces that are not drawn. Yesterday II posted code that would clean up the stray edges using aa simple imopen or imclose




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