MapTools produces grids, corner rulers, roamers, and rulers to assist with plotting or measuring positions on many different map scales. Tools for both UTM/MGRS/USNG and Latitude/Longitude coordinates are available. If you are already an experienced map and GPS user, you have come to the righ...
Map Scale: 1: Ground Distance: Map Distance Units: At a map scale of 1:100000, 1 kilometer on the ground is equivalent to 1 millimeter on the map. Calculate ground distance given map scale and map distance Map Scale: 1: Map Distance: ...
Map Distance: Equivalent Ground Distance: When 1 millimeter on the map is equivalent to 1 kilometer on the ground, the map scale is 1:100000.Calculate map distance given map scale and ground distanceMap Scale: 1: Ground Distance: Map Distance Units: ...
要在R语言中安装maptools包,请按照以下步骤操作: 打开R语言环境: 确保你已经启动了R或RStudio环境。 输入安装命令: 在R的命令行中输入以下命令来安装maptools包: R install.packages("maptools") 选择合适的CRAN镜像源进行下载: 在安装过程中,R会提示你选择一个CRAN镜像源。你可以选择一个地理位置较近或速度...
R语言 maptools 点面距离 在地理数据分析和空间统计中,R语言的maptools包扮演了重要的角色,尤其是在计算点与面之间的距离时。这项任务在各种应用场景中都有重要意义,例如城市规划、环境监测以及资源管理等。用户通常需要将某些地理点(如污染源、商店等)与地理区域(如城市、保护区等)进行距离计算,以便做出决策。在...
UpdatedNov 4, 2018 CSS Add a description, image, and links to themaptoolstopic page so that developers can more easily learn about it. To associate your repository with themaptoolstopic, visit your repo's landing page and select "manage topics."...
001、R语言中安装maptools出现如下问题: > install.packages("maptools") 将程序包安装入‘C:/Users/liujiaxin/AppData/Local/R/win-library/4.3’ (因为‘lib’没有被指定) Warningininstall.packages :package ‘maptools’isnot availableforthisversion of RA version ofthispackageforyour version of R might...
General Tools General map tools that are relevant to all locations. Area Calculator Using Maps- Find an enclosed area using a polyline on a map Create and Plot Encoded Polyline on Map- Plot an encoded polyline on map and draw a polyline to produce an encoded polyline ...
R语言maptools包读取点数据 r语言mapply函数 今天的帖子,是对在R语言里面批量操作的总结: 事情的起源来自于临床师弟的需求 ## 读入数据 1. 因为excel的使用习惯,很多临床医生收集标本的时候,喜欢合并把同一个患者的信息,只写一次。但是,如果想要更好地分析,我们需要的是清洁数据:...
MAPtools is a set of command-line tools for the analysis and visualization of mapping-by-sequencing (MBS) and QTL-seq data. A typical pipeline involves: (1) aligning the reads of an MBS or QTL-seq experiment using a read mapper, such as Bowtie2 or BWA, (2) processing the alignment ...