azimuthal map projection
- azimuthal map projection的基本解释
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方位投影
- 相似词
- 更多 网络例句 与azimuthal map projection相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this paper, a series of lunar map projection formulas are deduced including azimuthal projections, cylindrical projections and conical projections. The lunar map projections software is compiled. By caculating lunar map projection distortions, their projection distortion rules are found. Base on the lunar exploration mission, the lunar map projection scheme is given in this paper. The azimuthal conformal projection or the circumcenter perspective azimuthal projection is usually used in small areas, especially in two poles. When the whole map of the moon is needed, the azimuthal conformal projection or the circumcenter perspective azimuthal projection is used within 10° in the poles, and the traverse tangent cylindrical conformal projection or the normal secant conical conformal projection can be used in else areas, furthermore, band-division is necessary to reduce the projection distortion.
本文推导了基于月球参考球的各种投影公式,主要包括方位投影、圆柱投影和圆锥投影;编制了月球地图投影计算软件;对多种月球的投影变形进行了详细的计算,总结分析了各种月球投影的变形规律;结合月球探测的需要,给出了月球投影方案的建议:对于局部的面积较小的投影区域,建议使用等角方位投影或外心透视方位投影;如果绘制月面全图,在两极10°范围内采用等角方位投影或外心透视方位投影,其余区域可以采用等角横切圆柱投影和等角正割圆锥投影,并且要进行分带处理。
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先锐投影幕红叶投影幕、白雪投影幕、美视投影幕、投影机屏幕、丽屏投影幕、三石投影幕、三叶投影幕、三星投影幕、特莱投影机、地诺投影幕、丽屏投影幕、帝诺投影屏幕,cigna西格娜投影幕,森浦投影屏幕,富士通投影屏幕,丹麦DNP投影幕,Da-Lite投影屏幕,进口投影幕、网格、网络工程、系统集成、机柜、屏幕、综合布线、投影机出租、吊架校园网,监控网,广播网,多媒体网络教室,卡拉OK,舞台灯光,音响设备,网络产品、视频采集卡……销售地区:广东省广州市番禺区花都区增城市从化市江门市恩平市湛江市鹤山东莞市中山市河源市台山市潮州市茂名市深圳市城珠海市汕头市韶关市梅州市汕尾市佛山市阳江市湛江市肇庆市清远市云浮市城乡揭阳市海南省湖南省广西省
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This article detailedly expatiated upon the principles, contents and methods of cropland classification; it analyzed the necessity to combine the work of cropland classification with GIS technology, summarized the attributions of ARC/INFOand some other related softwares; it established the technologic route of cropland classification supported by GIS, by a case study in Liwu Town,Li County Hebei Province, this article expatiated the practicable mechanism of combining the function of ARC/INFO with the work of cropland classification, and put forward some new ideas and approaches of utilizing GIS: this paper put forward the idea of coding the polygons in the basic graphic database such as soil map and land use map according to their attributes, and put forward the detailed coding project; based on the code databases, it expatiated upon the detailed approaches to create single梖actor map and output the final classification map; it put forward the principles and the method of creating classification units in the environment of GIS, that is how to keep the lines of soil polygon, the border of districts and the important objects such as residential areas, banks of rivers and roads ,and how to overlap single梖actor soil map and land use map, and to delete some vector lines of the overlapped map appropriately; it detailed the methods of creating mathematic model of classification coefficients in the environment of computer, and used FOXPRO6.0 programs to realize the automation of calculating coefficients; it represented the method of plotting the final map by overlapping various coverages according to the code tables and lookup tables, the process of outputting the cropland classifying map was finished by program.
本文法对耕地等别划分的原则、内容及方法作了较详细的阐述,介绍了多系数综合修正法的耕地等别计算方法及其具体应用和AHP的确权方法;分析了耕地等别划分工作与地理信息系统技术相结合的必要性,简要介绍了地理信息系统软件ARC/INFO及其他相关软件的功能特点,制定了地理信息系统支持下耕地等别划分的技术路线,通过对河北省蠡县蠡吾镇的实证研究,重点阐述了ARC/INFO及相关数据库软件与耕地等别划分结合的有效机制及GIS应用的一些新思想、新方法:提山了对土壤图和土地利用现状图等基础图形数据库进行特征编码的思想和具体的编码方案,阐述了基于与图形库相链接的特征编码表,单因素图提取、成果图的输出的具体实现方法;提出了GIS环境下耕地单元划分的原则和方法,即在保留土壤因素图斑界线、行政界线和重要地物等的原则下,将土壤单因素图和土地利用现状图进行拓扑叠加,对叠加图中的矢量线进行适当的删除;阐述了在计算机环境下,耕地分等参数计算模型建立的方法,并用FOXPRO6.0语言程序实现了参数计算的自动化;阐述了根据图形库特征编码表和建立绘图符号查找表,按不同图层叠加绘制成果图的方法,该过程用命令程序实现耕地等别图的输出。
- 更多网络解释 与azimuthal map projection相关的网络解释 [注:此内容来源于网络,仅供参考]
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azimuthal orthomorphic projection:球面投影
azimuthal map projection 方位投影 | azimuthal orthomorphic projection 球面投影 | azimuthal projection 方位投影; 方位投影法
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azimuthal equidistant map projection:正方位等距投影
"正方位等积投影","azimuthal equalarea projection" | "正方位等距投影","azimuthal equidistant map projection" | "正方位等距投影","azimuthal equidistant projection"
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azimuthal equidistant projection:正方位等距投影
"正方位等距投影","azimuthal equidistant map projection" | "正方位等距投影","azimuthal equidistant projection" | "方位杆","azimuthal lever"