查询词典 map projection

Affected by the deformation of maps, the accuracy of map data is also changed. Therefore, how to select a suitable map projection is an important subject.

受到地图变形的影响，地图资料的正确性则发生变化，因此如何选择适合的投影是极重要的课题。

This paper systemically elaborates map projection and map projective transformation.

1引言如何将地球空间信息通过一种数据交换表现在平面中，是地图投影研究的范畴。

A map projection in which quadrilaterals formed by meridians and parallels have an area on the map proportional to their area on the globe.

由子午线形成四边形并且把地球上的领域相应的投射在地图上形成的地图投影图。

Topography map of the hip bone displays the depth of all parts of the hip bone and the projection of important blood vessel and nerve onto the hip bone imaginarily and directly. Deep understanding of topography map of the hip bone may prevent vital blood vessel and nerve from accidental injury during the operation of internal fixation of pelvic fracture and acetabular fracture.

提示髋骨的地形图形象、直观地表达了髋骨各个部位的厚度、重要血管和神经在髋骨表面的投影，深入地了解髋骨的地形图能够在骨盆骨折和髋臼骨折内固定中防止重要血管和神经的意外损伤发生。

Topographic map of the pelvis expresses the depth of all parts of the pelvis, the projection of important blood vessels and nerves in the pelvis imaginarily and directly. To understand deeply the topography map of the pelvis may prevent vital blood vessel and nerve from accidental injury during the operation of internal fixation of pelvic fracture and acetabular fracture.

骨盆地形图形象、直观地表达了骨盆各个部位的厚度、重要血管和神经在骨盆表面的投影，深人地理解骨盆地形图能够在骨盆骨折和髓臼骨折内固定手术中防止发生重要血管和神经的意外损伤。

For a two-dimensional type map, both abscissa and ordinate of the map are two unknown parameters of the linkage. A map is then composed of several regions that represent different types.

於二维类型图中，以连杆组中两个尚待决定的尺寸为图面座标轴，再於图面上区分出代表各种类型的区域。

In the paper, the researches and conclusions are:The basic theory and technique ofgeography information system, Introduce the history of the GIS technique developmentand it develops the trend, the GIS modernizes the meaning of the construction and thepurpose and the meaning of the topic researches to the our army artillery.The design ofartillerist numeric map, Make use of the soft strong graphics function of the SuperMapgeography information system, from how made the numerical map of artillery tocommence, carried on the processing and processed the piece to the artilleryappropriative paper quality diagram to manufacture the numerical map of artillery.Themold of choosing the position of artillerist and excavating the position of spacedata;Rules of space clustering analyzing and space relationship on the basis ofmathematics configuration;Choosing the path of positing convert;optimalpath arithmetic on the basis of chart theory and realize optimal path analyze.

论文研究内容有：地理信息系统的基本理论与技术，介绍GIS技术发展的历史及其发展趋势，GIS对我军炮兵现代化建设的意义和课题研究的目的及意义；炮兵地图数字化设计与制作，利用SuperMap地理信息系统软强大的制图功能，从如何制炮兵数字地图入手，对炮兵专用的纸质地图进行处理和加工件来制作炮兵数字地图；炮兵阵地选取分析模型、阵地空间数据挖掘模型的建立和挖掘过程，基于数学形态学的空间聚类分析法、空间关联规则法的挖掘模型；阵地转移的路径选择，对炮兵阵地转移路径进行分析，基于图论中的Dijkstra最优路径算法，实现转移最佳路径分析。

Firstly, on the base of the strictly monotone map, we provide the definition of strictly invariant quasi-monotone map, it is the extent of the strictly monotone mapping, at the same time, it is the especial case of the invariant quasi-monotone map, too. It is supported by some examples.

在理论部分做了三方面的工作：首先，在严格拟单调映射的基础上，提出了严格不变拟单调映射，它是严格拟单调映射的推广，同时也是不变拟单调映射的特殊情况，举例加以说明。

To fulfill a TV guidance system task of fast recognizing and tracking missile target from sequential images including multiple interferences,a fast segmentation and target characteristic extraction algorithm of sequential images based on binary image index map was proposed.After the sequential images were processed to binary images,a Field Programmable Gate Array was used to scan the binary image once and an index map was built,and then Digital Signal Processing was used to scan the index map once.

针对电视制导系统需从包含多个干扰目标的序列图像中快速识别和跟踪导弹目标的要求，提出了一种基于二值图像索引图的序列图像快速分割及目标特征提取算法，在序列图像二值化后，只需由FPGA对其遍历一次就可得到一张含有目标信息的索引图表，再由DSP对该索引图表边遍历边计算就可得到图像所含目标的数量、面积、质心坐标、二阶矩不变量等特征。

The system , according to the approach and method of the software engineering on geography information system ,is under scientific system analysis and design combining with Duoluokou Market Information System's self-characteristic and is based on Ajax. Ruby on Rails framework will be applied to manage the date information. Such framework provide several ways to record data information and organize them in an efficient way and to do management, update, maintenance on them; Date information are visible that means the framework provide some operating function on map such as maximum, minimum and brose, user can use the button above the map to imply those function; Information query and brose, a corresponding entity will be offered according to the input terms and its location in the map.

系统按照地理信息系统软件工程的思路与方法，结合舵落口大市场信息化建设的自身特点，对其进行科学的系统分析与设计，并以Ajax技术为基础，利用Rails框架实现了数据信息管理，即运用多种方式录入数据信息，以有效的数据组织形式进行数据库管理、更新、维护；实现了信息查询与浏览，即提供根据输入的条件查询其对应的实体的相关属性；实现了数据信息可视化，即提供了放大、缩小、漫游等基本地图操作功能，用户可以利用地图上方按钮来方便的使用这些功能以及在地图中定位与显示所查询的目标物。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。