Is polyarea command related to fill comand?

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Rafi
Rafi 2014 年 10 月 16 日
回答済み: Sean de Wolski 2014 年 10 月 16 日
In the attachment you can find a plot of the data I want to analyze. I used the fill command to color the polygon, which works quite nicely. I want to find the area of colored filling. Does the polyarea command exactly calculate the specified area? Or are there better approximations?

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Sean de Wolski
Sean de Wolski 2014 年 10 月 16 日
Polyarea will calculate the area of the polygon from the vertices. Fill is probably doing a little bit more interpolation, but the areas should match each other closely.

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