IDP.Math.KGeomFace2d.isPositive() method

检查外轮廓是否逆时针。

Check whether face2d's contour is counter-clockwise.

Signature:

isPositive(): boolean;

Returns:

boolean

返回外轮廓的绕向是否为逆时针。

Return true if the the contour loop is counter-clockwise.