Datenum hour intervals within days to plot with imagesc (Matlab)

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Pavel Inchin
Pavel Inchin 2023-5-23
评论： Pavel Inchin 2023-5-23
Good day,
I have an array UTTf in datenum format, which includes time markers for 10 days but only for [17:30-24] UTC.
I have the same size matrix cdgridN2f as time array and now I am trying to plot the data with imagesc.
imagesc(UTTf,lat,squeeze(cdgridN2f))
datetick
However, instead of having time intervals of [17:30-24] UTC for each day, imagesc shows timestamps starting from the beginning of the day for all days except the first one (see figure).
My question is to how properly plot time ticks so it shows the data merged from many days, but for only specific interval of hours within each day.
Thanks in advance,
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Cris LaPierre
Cris LaPierre 2023-5-23
Where are you seeing hour of day on your ticks? I only see month and day.
Pavel Inchin
Pavel Inchin 2023-5-23
yeah, here it doesn't show. but time ticks can be made presented (sorry I didn't add it to the script)

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回答（1 个）

Walter Roberson
Walter Roberson 2023-5-23
What you will have to do is just use integer X coordinates, with the data in cdgridN2f having no gap (or perhaps a gap of 1), and use xticks() and xticklables() to set what shows up at what positions.
If you need data cursor to work to show you the date + time for each location instead of the relative offset, then you will need a custom callback function that fudges what to emit to the tooltip .

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