| How to add the grid to a figure [message #62453] |
Tue, 09 September 2008 07:02 |
duxiyu@gmail.com
Messages: 88
Registered: March 2007
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Member |
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Dear all,
I want to wrtie a procedure to get the similar plot as it below.
http://lh6.ggpht.com/duxiyu/SMZ8O2FYDRI/AAAAAAAAACo/HCWygAzv Y60/sample.png
Is there a simple method to add the dashed grid like that?
The vertical dashed lines are easy to be added, becase the duration
for all data is three hours and the interval between tow vertical
lines is 3 min.
Therefore, it is easy to use a loop to plot them.
But I cannot find a universal method to plot the horizontal dashed
lines.
Becase for different data interval, the Y values are different for
each other.
The values of horizontal lines are equal to the major ticks.
Meanwhile, according to the different data set, IDL selected the
different major ticks.
So it is difficult for me to build the procedure which can be applied
to all the data.
Best wishes,
Du
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