Such coordinates are called "barycentric." Try
searching under that name.
Alex Yu wrote:
>
> I am trying to understand Triangular coordinates--a kind of graph which
> combines four dimensions into 2D by joining three axes to form a triangle
> while the Y axis "stands up." The Y axis can be hidden if the plot is
> depicted as a contour plot or a moasic plot rather than a surface plot.
>
> I have a hard time to follow how a point is determine with the three axes
> as a triangle. Is there any website/paper than can explain this? Thanks.
>
> ****************************************************************************
> Chong-ho (Alex) Yu, Ph.D., MCSE, CNE
> Academic Research Professional/Manager
> Educational Data Communication, Assessment, Research and Evaluation
> Farmer 418
> Arizona State University
> Tempe AZ 85287-0611
> Email: [EMAIL PROTECTED]
> URL:http://seamonkey.ed.asu.edu/~alex/
> ****************************************************************************
>
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Bob Wheeler --- (Reply to: [EMAIL PROTECTED])
ECHIP, Inc.
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