在第二节里阐述了配光光形的计算，其中涉及透视变换理论和层的概念。
In the second section, calculation the light shape is introduced, the concept of layer and the theory of perspective transform are adopted.
方法：腓骨骨折半管形钢板固定或透视复位，逆行克氏针髓内固定。
Methods: In case of fibular fracture, fixation of half cast plate or retrograde Kirschner's wire fixation after reduction under fluoroscopy were recommended.
结论：C形臂x线透视下分步引导上中胸椎椎弓根螺钉植入，是一种能提高上中胸椎椎弓根螺钉植入的简单经济、确实可行的方法。
Conclusion: the implantation of upper-middle thoracic pedicle screw under the guidance of the C-shaped arm X-ray perspective is a simple and feasible method, and improve the accuracy and safety.
视觉变形通常被视作幻形或者镜头效应，但实际上它也是一种合乎逻辑的透视画法。
Anamorphism is usually considered a form of Illusion or Trompe loeil, but is really the logical mathematical continuation of Perspective.
先知所做的命名及品牌形象是一个泛着金属光泽的银灰色多边形框，里面则是公司的中文名的首字母s与H，因为做了透视效果，所以很有立体感，非常美观。
Wevin made brand LOGO a polygon glowing metallic silver frame, which is the company's Chinese name initials s and h, as did a perspective effect, so it's three-dimensional, very beautiful.
首先，我起了一个行李箱草形，设置了基本的设计和透视角度。
First off, I started out with a rough underlay of my suitcase, setting up the basic design and perspective of the scene.
采用一个与视灭三角形相似的小三角形作为绘图辅助，同时结合量点法中的分量点概念进行作图，就可以很好地解决这个难题，而且能更加快速准确地绘制两点透视图。
This paper introduces the method of using a small triangle which is similar to the vision-vanishing point triangle to solve the problem, so that making perspective drawing more rapidly and precisely.
基于类似形的定义给出了在透视投影下平面多边形为类似形的识别算法。
A new algorithm is presented for recognizing planar objects from a line drawing under axonometric and perspective projections based on principle of homograph.
基于类似形的定义给出了在透视投影下平面多边形为类似形的识别算法。
A new algorithm is presented for recognizing planar objects from a line drawing under axonometric and perspective projections based on principle of homograph.
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