145     const qreal distance = circle.radius();  in calculatePeripheralPoints()
152     qreal centerLon = center.longitude();  in calculatePeripheralPoints()
153     qreal latRad = QLocationUtils::radians(center.latitude());  in calculatePeripheralPoints()
154     qreal lonRad = QLocationUtils::radians(centerLon);  in calculatePeripheralPoints()
155     qreal cosLatRad = std::cos(latRad);  in calculatePeripheralPoints()
156     qreal sinLatRad = std::sin(latRad);  in calculatePeripheralPoints()
157     qreal ratio = (distance / QLocationUtils::earthMeanRadius());  in calculatePeripheralPoints()
158     qreal cosRatio = std::cos(ratio);  in calculatePeripheralPoints()
159     qreal sinRatio = std::sin(ratio);  in calculatePeripheralPoints()
160     qreal sinLatRad_x_cosRatio = sinLatRad * cosRatio;  in calculatePeripheralPoints()
161     qreal cosLatRad_x_sinRatio = cosLatRad * sinRatio;  in calculatePeripheralPoints()
163         qreal azimuthRad = 2 * M_PI * i / steps;  in calculatePeripheralPoints()
164         qreal resultLatRad = std::asin(sinLatRad_x_cosRatio  in calculatePeripheralPoints()
166         qreal resultLonRad = lonRad + std::atan2(std::sin(azimuthRad) * cosLatRad_x_sinRatio,  in calculatePeripheralPoints()
168         qreal lat2 = QLocationUtils::degrees(resultLatRad);  in calculatePeripheralPoints()
169         qreal lon2 = QLocationUtils::wrapLong(QLocationUtils::degrees(resultLonRad));  in calculatePeripheralPoints()