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.
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。
Key points include setting the projection of the map file to EPSG: 4326 and defining the WMS layer you want to pull in along with its appropriate metadata (the layer section).
关键的几点是：将地图文件的投影设为EPSG： 4326以及定义想要拉入的wms层及其相应的元数据(LAYER部分)。
The images were re-projected into an orthographic map projection.
该图像被重新投影成正射投影图。
Strebe Projection "on my back," write the geographer Marina Islas, "I have a map of the world."
斯特·雷贝投影图：“在我的后背上，”地理学家玛丽娜·伊丝莱斯(MarinaIslas)写到，“纹有一幅世界地图。”
Finally, the map file must provide a WEB section where the wms_srs value includes the projection you want to request - in this case, 900913.
最后，这个地图文件必须提供一个WEB部分，其中wms_srs值包括您想要请求的这个投影—在本例中为900913。
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.
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。
This map, by the way, is the entire sky spread out into an ellipse, known as a Mollweide projection.
（此图，顺便说一句，此图是整个天空展开成椭圆的图——摩尔维特投影（Mollweide projection） 。）
OpenLayers does not have the ability to re-project data itself, so all data included in a map must also be provided in Spherical Mercator projection.
OpenLayers本身并不具备重新投影数据的能力，所以包含在地图内的所有数据必须在Spherical Mercator投影内提供。
The map you're used to seeing pinned on classroom walls and in Atlases is known as a Mercator projection, and was first presented by the Flemish geographer Gerardus Mercator back in 1569.
过去常被钉在教室墙上而且常出现在地图册中的那幅地图以墨卡托投影著称，最早是由弗兰德地理学家杰拉杜斯·麦卡托提出来的，可追溯至1569年。
One is how to get geography datum independently, i. e, how to get a map in a projection by using the datum gotten from a map in another projection.
这两个问题是，位置信息采集的重用或投影方式无关问题（即在某种地球投影地图上录取的地理位置信息可以按另一种地球投影投影或制作地图）；
In order to be able to map the schema structure in the parser to the composer, the Group to List projection has to be applied to the item address in the Output TAB of the XML parser step.
为了能够将分析器中的架构结构映射到编写器中，必须将GroupToList映射应用到XML分析器步骤的Out put选项卡中的项目地址。
Map projection transformation is a new research and application field of mathematical cartography.
地图投影变换是数学制图学的一个新的研究和应用领域。
In order to attain a high-resolution image, the algorithm is based on the MAP algorithm, solving the optimization by proposed iteration steps with using the gradient projection method.
该方法基于MAP算法，通过利用梯度投影的方法对重建结果不断进行迭代优化得到最终的理想高分辨率影像。
The GIS software is mainly applied to the department of Geography Information system. Its coordinate system is closely related with map projection.
地理信息系统软件主要应用于地理信息系统部门，所用到的坐标系与地图投影密切相关。
The transformation of map projection is the base for mapping theory and an important component of GIS.
地图投影变换是地图制图理论的基础，也是GIS的重要组成部分。
Under general feasible set, in consideration of the algorithms for nonsmooth equations and the properties of projection map, the algorithms using the normal equation to solve are discussed.
在一般可行集下，结合非光滑方程组解法及投影映射的性质，讨论了法方程求解变分不等式问题的算法构成。
Classical feature extraction methods include: Principle Component Analysis, Singular Value Decomposition, Projection Pursuit, Self-Organizing Map, and so on.
传统的特征提取方法主要有：主分量分析、奇异值分解、投影追踪、自组织映射等。
A common statement that I hear in GIS is the following "My map doesn't have a projection", but this is simply not possible (unless you have a good old rotating globe).
有种说法我经常在GIS圈子里听到：“我的地图没有投影”，但实际上这决不可能(除非你的地图是一个可以转动的地球仪)。
The heat and cold sources are distributed at the stereographic projection map of Northern Hemisphere on the dishpan bottom.
将热源及冷源分布在绘有北半球极赤射面投影地图的底面上。
The validity of simulating star map is verified by using the angle-distance of stars and projection theorem.
利用星间角距和投影原理的性质来验证星图模拟的有效性。
Only on this projection are two points on the map at correct compass course from one another.
只在这种投影之下地图上相互两点的罗盘方位才是正确的。
Map projection transformation of vector data is becoming mature presently, but research and application of raster data projection transformation in GIS needs further efforts.
当前GIS中矢量数据的投影变换已日趋成熟，而栅格数据的投影变换的研究与应用还需要进一步的深入。
The expansions of conformal latitude in map projection are studied in this paper.
对地图投影学中经常遇到的等量纬度正反解展开式进行了新的研究。
Let say map is initialize and no event is fired than projection does not gives any result.
让说，地图是初始化和没有事件触发比投影不提供任何结果。
In the compilation of land use planning map at county level, it is used to transform one region to the adjacent one to display the more projection zones.
在县级土地利用规划用图中，常涉及到跨投影带的地图拼接问题，一般使用邻带转换法实现跨带区域的地图显示，该方法在实际应用中存在面积和角度变形相对较大的不足。
In order to satisfy the requirement of high precision in map equiareal projection, the precise forward and inversion formulas of ellipsoid trapezoid area are studied out according to the basic theory.
在地图等积投影中，椭球面梯形面积的正、反算方法和精度是关键。
As an important part of GIS platform, spatial reference system includes coordinate transformation and map projection, also named as map projection transformation system.
GIS中的空间参照系统是GIS平台中的重要组成部分，内容包括各种坐标系统的转换和地图投影，故也称为投影变换系统。
As an important part of GIS platform, spatial reference system includes coordinate transformation and map projection, also named as map projection transformation system.
GIS中的空间参照系统是GIS平台中的重要组成部分，内容包括各种坐标系统的转换和地图投影，故也称为投影变换系统。
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