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# varea.m 1.0

Date Added: July 05, 2013  |  Visits: 236

Compute the area and judge the direction of a closed curve.function area=varea(C)%VAREA compute the "sign-area" of a closed curve.% NOTE: Sign-area equals to the area of the closed curve when it is in anti-clockwise and equals to the negative area when it is in clockwise.% Negative area means equal to area in magnitude but is negtive in sign.We can see that this script may also be used to judge the direction of a closed curve.% C provides the coordinats of the nodes of the curve in the following way:% C=[x1 x2 ...% y1 y2 ...]% AREA=VAREA(C)% AREA returns the area of the curve(>0) when it is in anti-clockwise% AREA returns the negtive area of the curve(

 Requirements: No special requirements Platforms: Matlab Keyword: Coordinats,  Curvegt,  Curvelt,  Equal,  Magnitude,  Negtive,  Nodes,  Script,  Signwe Users rating: 0/10

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