Don't get your hopes up, Excel's contour/surface charts are not very
sophisticated. The long and lat are categorical, not numeric, and the
algorithms that generate contours is rudimentary.
I've written about these charts in details:
Contour and Surface Charts in Excel 2007
http://peltiertech.com/WordPress/con...in-excel-2007/
Surface and Contour Charts in Microsoft Excel
http://pubs.logicalexpressions.com/P...cle.asp?ID=447
- Jon
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Jon Peltier
Peltier Technical Services, Inc.
http://peltiertech.com/
On 3/3/2010 10:29 AM, tpmbrian wrote:
I have some geophysical data I want to chart. How can I generate contours, or
with the surface chart, how can I change the values for the coloured bands?
Thank you