You can configure the size of text in the contour lines, and also the spacing between each label, and also the number of decimal cases. Check in the manual again for plot plus commands (PPL).
Domingos.
On Fri, Jun 18, 2010 at 5:09 PM, William S. Kessler
<william.s.kessler@xxxxxxxx> wrote:
A simple way to see the contour line values is to do SHADE or FILL. Then the colorbar will show the values.
The problem is that you have very dense contours. There is no real reason to contour etopo2, which is a 2-minute (roughly 3km) grid, namely 1320 points on the side of your box. Try contouring etopo5: the result should look essentially the same, and it will probably show contour values.
The reason for this is that the contour algorithm was written in a time when computers had little memory (1968!). It therefore divides the region into smaller subregions for calculation (you can see this if you do the plot over a slow internet connection). Since the algorithm tries to avoid overwriting contour labels (which is a very hard problem!), when it works in small separate subregions it usually deduces that there is no room for a label. That's why using etopo5, which does not need such small regions, will probably help.
Billy K
On 18 Jun 2010, at 3:15 AM, Farshid Daryabor wrote:
Dear All
Hi
I have contour from etopo2. I need reveal the values of contour lines. I don't know how do that.
I refer to user guide just I saw some command for thickness of contours and definition of colors.
I sent figure you can see.
High appreciate anybody can help me.
Your Sincerely
F.Daryabor
<topo.gif>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
William S. Kessler
NOAA / Pacific Marine Environmental Laboratory
7600 Sand Point Way NE
Seattle WA 98115 USA
william.s.kessler@xxxxxxxx
Tel: 206-526-6221
Fax: 206-526-6744
Web: http://www.pmel.noaa.gov/people/kessler
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Dr. Domingos Urbano
Instituto Nacional de Pesquisas Espaciais - INPE
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tel: 55(12)3186.8552 fax: 55(12)3101.2835
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