Preserving accuracy when using a 2-d map requires understanding spatial reference systems and using them appropriately.
使用2 - d地图时保持精确度需要理解空间引用系统并合理使用。
Placebase layers on top of raw map-data would abstract a new underlying service so that users may not even notice it (unless, of course, there are performance, accuracy or capability issues).
Placebase在原始地图数据顶端的层可以抽取出一个基础的服务，这样用户可能根本不会注意（除非，当然，还有性能，准确性或容量的问题）。
They checked the accuracy of the map by testing 200 hair samples collected from 65 barber shops.
他妈呢从65家理发店中收集了200份头发样品，用以测试该地图的准确性。
Until about 20 years ago the first was answered by a map and compass, and accuracy depended on the competency of the user.
直到大约20年前第一由地图和指南针回答，并且准确性取决于用户的能力。
The most sophisticated Earth observation satellite will launch next week to map our planet's gravitational field with unprecedented resolution and accuracy.
最先进的地球观测卫星将于下周发射，它将以前所未有的分辨率和精确度来测绘地球的重力场。
It shows that this study provides good theory proof and simple algorithm of high accuracy connecting electronic map in maritime or land over theory analysis, computer simulation and experiment.
理论分析、计算机仿真及实验表明：该项研究为结合电子地图的高精度陆上定位，以及高精度海上定位导航，提供了可靠的理论依据及简化算法。
First, the basic principles of geometry rectification of digital aerial images and raster relief map are introduced and thus the accuracy of geometry rectification is improved.
首先，重点阐述了数字航空影像几何纠正，以及栅格地图变形纠正的基本原理，进一步提高了几何纠正的精度。
Experiments show that the automated map orientation is realized and the accuracy of orientation is also raised with the method proposed in this paper.
实验表明，文中所述的地图定向方法在提高自动化程度的同时，也提高了地图定向的精度。
Proceeding from the reality of work, this paper detected the accuracy of base map(DOM) in the second land survey of Jilin province, using the method of field measured checkpoints.
从工作实际出发，就吉林省第二次土地调查工作底图（DOM）的精度，通过外业实测检测点的方法，对其进行检测。
The map matching algorism, the fusion of the road data in digital map and the positioning data given by GPS can effectively improve the positioning accuracy in navigating system for vehicle.
融合电子地图中的道路数据和GPS所提供的定位数据的地图匹配算法，可以有效地提高车辆导航的定位精度。
The navigator application test indicated that the navigator for buildings can fix an accurate position in 5-10 meters accuracy range and can be used in self-made small area map navigation.
该导航仪应用测试表明，在5-10米精度范围内对于大建筑物定位准确，能够用于自制小区域地图的导航。
The accuracy of flood area is mostly dependent on the contour interval of map, accuracy of digitizing map, accuracy of DEM, and interval of GRID, detecting resolution of pixels.
对于采用本方法计算淹没区，准确性受地形图等高距大小、数字化采集精度、数字地面模型（DEM）高程精度以及格网间隔大小、像素探测分辨率等因素的影响。
To use AUTOLISP language organizes some common symbol suitable for mine map drawing, to raise accuracy and speed of drawing.
使用AUTOLISP语言编制一些适合绘制矿图通用符号，提高绘图的精度和速度。
Absrtact: spatial data editing is an important part of cartography, and spatial data moving and node operation may affect the accuracy of the map.
摘要：空间数据编辑功能是地图制图中的重要组成部分，当进行多个空间数据移动以及进行结点操作时，会影响地图精度。
On the basis of this, a pole-map based localization was introduced which does map-matching using iterative closest points and can enhance the accuracy of localization.
在此基础上，采用基于柱图的定位方法，使用迭代最近点算法进行地图匹配，提高了定位精度。
This paper discussed in detail algorithm of geometric rectification by scanned topographic map based on teaching model with least squares method to heighten image quality and data accuracy.
针对扫描矢量化这一数据采集手段，以提高图像质量、数据精度为目的，以教学模型为基础，利用最小二乘原理，详细讨论了扫描后的地形图几何纠正算法。
Then, the higher degree of accuracy of three-wave model is verified by annual temperature probability distribution map and the calculation of degree-hour.
然后通过全年温度概率图和度时数计算验证三波模型的较高精度。
Digital navigation map is fundamental part for VNS, so map data actuality will directly exert an influence on navigation accuracy.
导航电子地图作为导航系统的重要基础，数据的现势性如何直接影响到导航的准确与否。
When the precise geometric rectification of TM imagery was made with the ground control points selected from topographic map in scale of 1:100000, the accuracy of half a pixel is high.
由1：10万地形图选取平面控制点对TM磁带进行精处理，平面定位精度为半个象元，精度较高；
When the precise geometric rectification of TM imagery was made with the ground control points selected from topographic map in scale of 1:100000, the accuracy of half a pixel is high.
由1：10万地形图选取平面控制点对TM磁带进行精处理，平面定位精度为半个象元，精度较高；
应用推荐