vefm_271.py 文件源码

def ellipsecomp(self, efactor, theta):
        if theta == self.a90:
            result = self.a90
        elif theta == self.a180:
            result = self.a180
        elif theta == self.a270:
            result = self.a270
        elif theta == self.a360:
            result = 0.0
        else:
            result = atan(tan(theta) / efactor ** 0.5)
            if result < 0.0:
                if theta > self.a180:
                    result = result + self.a180
                elif theta < self.a180:
                    result = result + self.a180

            if result > 0.0:
                if theta > self.a180:
                    result = result + self.a180
                elif theta < self.a180:
                    result = result
        return result