空间引用系统的第二部分是投影，它定义了如何将地球表面放置在2 - d平面上。
The second part of a spatial reference system is its projection, which defines how to lay out the Earth surface onto a 2-d surface.
纸上或屏幕上的地图是平面的；它们需要从地球的曲面向平面进行转换：地图投影。
Maps (on paper or on the screen) are flat surfaces; they require a transformation from the curved surface of the earth to the flat plane: a map projection.
那就意味着，我可能想看到，这个在水平面上的投影。
That means I want maybe to look at the projection of this guy onto a horizontal plane.
这个额外的功能令你在拍摄照片后，只要按下相机上的一个按钮，就能将照片投影到附近的任何平面上，像老式幻灯片那样。
This extra characteristic lets you take pictures and, by pressing a button on the camera, project them onto any nearby surface, in old-school slideshow style.
使用真实的照片，我投影了一些平面，将那些照片作为纹理匹配到模型上。
Using real photos, I projected some planes, mapped with these photos as the textures onto the model.
向量投影法是一种对平面机构进行运动分析的图解方法。
The vector projection method is a graphical technique for motion analysis to the plane mechanism.
绘图法中的地图投影方法可以在平面中表示一个两维的曲面，例如一个标准地图。
Map projection in cartography is a way to present a two-dimensional curved surface on a plane, such as a normal map. Figure 2 shows a Traverse Mercator projection.
将光栅投影到已知目标平面，通过数字摄影得到光栅平面与目标平面相交的光栅图像。
An image with intersection lines between grating planes and a known objective plane can be captured by a digital camera.
将投影平面的每一行分成由若干个像素组成的区间。
Every row of the projection plane is divided into some sections.
并且通过坐标变换或投影平面代替曲面等方法可以处理球壳及曲面屋盖的风压分布插值计算。
Wind pressure distributions on spherical shell or curving roofs can be obtained by the method of coordinate transform or projected plane of curved surface.
在每两个摇摆的水平圆形钢平面之间，安装着曲面的圆锥形投影屏幕。
Between each pair of staggered horizontal circular steel plains, the curving, conical projection screens are installed.
重建应用多平面重建（MPR），最大密度投影（M IP）及容积显示技术（VRT）。
Reconstruction methods were multiple planar reconstruction(MPR), maximum intensity projection(MIP) and volume rendering technique(VRT).
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.
同时区分了刀刃在坐标平面上的投影角和刀面相对坐标平面的倾斜角，并用实例计算说明这两种角度有时差值较大。
Difference between the angles of edge projections and the angles of the intersections of surfaces and coordinate planes are raised in this paper.
本文提出且推导了刚体平面运动的加速度投影定理，并介绍了该定理的应用。
The theorem of Projections of accelerations of plane motion of rigid body is derived in this paper. Some applications of this theorem are given as examples.
用每一个平面的投影边缘代替面积预测化合物的活性。
Instead of areas, the peripheries of each plane of projection were used to predict the activities of compounds.
工作投影面为赤道平面―相当于地平面。
The working projection plane is taken at the equatorial plane corresponding to the ground surface.
卫星图像都是沿卫星飞行方向而获取的切平面投影图像。
All satellite image are tangent plane projection obtained along the flight direction of satellite.
并以此为基点，系统地研究了点、直线和平面的线投影。
A new projected light-lineal light is put forth according to production and actual life, lineal projection on point, line and plane.
对两圆弧法绘制叶片平面投影图中相对液流角的计算误差会造成叶片不连续问题提出修正；
The problem that can be likely the lamina incontinuity is resolved, which is induced by calculating error of relatively liquid angle in the drawing lamina plane by two arc.
借助于四维坐标的球极平面投影验证SO(4,2)与SU(2,2)间的同态特性。
Demonstrated Homomorphic Characteristic Between SO (4, 2) and SU (2, 2) by Stereographically Projecting of Four-dimensional Coordinates.
推导了投影平面上以直代曲的极限距离计算公式，代曲极限间隔值的探求。
The calculation formula of extreme distance and limit interval to draw curves by straight lines on projection plane is deduced.
提出并论证了各种位置直线与平面相交，直线在相邻两投影面上可见性的投影规律。
The projection sequence of plane graphs apex and relationship of the sequence and plane faces were discussed in this paper.
根据所得到的分割结果建立了透视投影下的运动平面跟踪模型。
Then, the tracking model under perspective imaging for body plane is established.
最后使用等距墨卡托投影，将卫星覆盖绘制在地球平面图上。
The satellite cover are drawn on the ichnography of the earth with the projection of Mercator.
具有公共对称平面的二次曲面的交线在该平面上的投影为二次曲线。
It is known that the projection of the intersection of quadrics with common plane of symmetry on this plane is a curve of second order.
由画法几何原理可知平面面积等于其正投影面积乘以该平面与投影面夹角的余弦。
According to principle of descriptive geometry, the area of plane equals projection of the plane divided by cosine between plane and projection of plane.
为了研究两平面相交可见性的规律，从空间一个平面的投影特点入手，将平面分别设定为正面、背面两面，讨论平面图形各顶点投影顺序与平面正面、背面的投影所具有的内在规律。
To study the intersection visibility of two general place planes, this paper set the planes as two faces of front and backs from the point of projection character of a space plane.
提出了一种光栅投影式立体照相系统中光栅投影平面的标定方法。
In this paper, a method is proposed for projector calibration in 3d photography systems using grating projection.
用射线跟踪法，按射程计算将散射投影在平面图像对应单元的像素点上，得到自然地表的雷达图像模拟。
By using the ray tracing method, the scattering from all cells of scatters under a certain radar resolution is mapped into the image pixels.
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