Circles We can extend the Hough transform to other shapes that can be expressed parametrically. For example, a circle of fixed radius can be described fully by the location of its center (x, y). Think of each feature (edge) point on the circle

一种参数化方法，可以用于对曲线进行参数化，在设计中可以用于减少设计变量。-Used to parameterize a curve, has similar function to the NURBS

ANSYS Fluent工程平台如何优化，從幾何上优化及數值條件上的优化做說明(ANSYS Fluent plateform for how to optimum the geometry and boundary condition variation)