r 从空间对象中提取坐标的方法(例如SpatialPolygonsDataFrame)
Posted
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了r 从空间对象中提取坐标的方法(例如SpatialPolygonsDataFrame)相关的知识,希望对你有一定的参考价值。
# Ben Fasoli
library(sp)
library(rgdal)
shape <- readOGR(dsn = 'data', layer = 'four_samples')
head(shape@polygons[[1]]@Polygons[[1]]@coords)
# [,1] [,2]
# [1,] -111.6227 40.75247
# [2,] -111.6227 40.75243
# [3,] -111.6226 40.75185
# [4,] -111.6224 40.75108
# [5,] -111.6224 40.75105
# [6,] -111.6221 40.75080
head(raster::geom(shape))
# object part cump hole x y
# [1,] 1 1 1 0 -111.6227 40.75247
# [2,] 1 1 1 0 -111.6227 40.75243
# [3,] 1 1 1 0 -111.6226 40.75185
# [4,] 1 1 1 0 -111.6224 40.75108
# [5,] 1 1 1 0 -111.6224 40.75105
# [6,] 1 1 1 0 -111.6221 40.75080
head(ggplot2::fortify(shape))
# long lat order hole piece id group
# 1 -111.6227 40.75247 1 FALSE 1 25 25.1
# 2 -111.6227 40.75243 2 FALSE 1 25 25.1
# 3 -111.6226 40.75185 3 FALSE 1 25 25.1
# 4 -111.6224 40.75108 4 FALSE 1 25 25.1
# 5 -111.6224 40.75105 5 FALSE 1 25 25.1
# 6 -111.6221 40.75080 6 FALSE 1 25 25.1
以上是关于r 从空间对象中提取坐标的方法(例如SpatialPolygonsDataFrame)的主要内容,如果未能解决你的问题,请参考以下文章
如何使用坐标和 R 中 shapefile 中的另一个值从栅格中提取值?
微软Hololens学院教程-Hologram 230-空间映射(Spatial mapping )
关于Oracle Spatial的数据格式 C#
数字图像处理:线性和非线性滤波的平滑空间滤波器(Smoothing Spatial Filters)
论文笔记:Spatial-Temporal Map Vehicle Trajectory Detection Using Dynamic Mode Decomposition and Res-UNe
怎么从Auto CAD中提取多段线坐标?