CAJ | 학술논문

通过鼠标的拖动来实现三维物体的旋转，通常的做法是使场景绕 X，Y ，Z轴旋转，其不能达到图形可以随着鼠标的拖动绕任意方向旋转的预期效果，旋转有停滞、逆转和卡动现象。本文通过在屏幕外虚拟构建一个单位球体，将鼠标点击的屏幕上的二维点映射到球面上用以产生虚拟的 Z坐标来计算旋转参数，并根据四元数计算方法实现鼠标拖动下三维物体绕任意方向的流畅旋转。彻底消除停滞逆转和卡动。
통과서표적타동래실현삼유물체적선전，통상적주법시사장경요 X，Y ，Z축선전，기불능체도도형가이수착서표적타동요임의방향선전적예기효과，선전유정체、역전화잡동현상。본문통과재병막외허의구건일개단위구체，장서표점격적병막상적이유점영사도구면상용이산생허의적 Z좌표래계산선전삼수，병근거사원수계산방법실현서표타동하삼유물체요임의방향적류창선전。철저소제정체역전화잡동。
The usual way for 3D objects to rotate by mouse clicking is to rotate the 3D models around the X ,Y ,Z axises .But it can not achieve the expected effect because of stagnation and reverse in rotation .In this paper ,a new method is presented that a virtual unit sphere outside the screen is constructed ,onto which the two-dimensional point is mapped to form a virtue Z axis for calculating rotation parameters .And then a smooth rotation in any direction is achieved by the quaternion method , without any stagnation and reverse .