Re: overlapped texts on map

With regard to Ozan's question, it turned out he *wasn't* talking
about contour labels, but rather just simple strings on a plot.

Because this is somewhat a kludgy thing you have to do, I've created
an Applications example showing how to attach a bunch of strings to a
plot, and then how to loop through the attached strings to see which
ones are overlapping other ones, and remove them.

Please see example 10 at:

   http://www.ncl.ucar.edu/Applications/text.shtml

--Mary

On Mon, 17 Jul 2006, Mary Haley wrote:

> All,
>
> I'm responding to this one off-line, but in general, if you use
> gsn_add_text, there's no way to tell it if there's already a text
> string on or close to the same location, not to draw it.
>
> In order to do this, you need to retrieve the locations of all the
> current strings, and figure out what part of the plot they are already
> covering. Then, you would need to calculate how much space the current
> string was going to take up, and figure out if it overlapped with an
> existing string.
>
> I'm working with Ozan offline because I believe he is trying to to get
> around a different problem of having contour labels overlapping, and I
> think maybe he doesn't need to use gsn_add_text.
>
> --Mary
>
>
>
> On Sat, 15 Jul 2006, ozan mert gokturk wrote:
>
>> Hi All,
>>
>> I am trying to show some text on a map by using gsn_add_text function. But
>> some
>> pieces of texts are overlapping. Is there a way to eliminate one of the
>> overlapping pieces without changing the size of the texts?
>>
>> Thanks
>>
>> Ozan
>>
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Received on Wed Jul 19 2006 - 17:53:00 MDT