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R语言geoviz包，mapzen_dem#通过“Amazon公共数据集”从“mapzen”获取数字高程模型（DEM）数据
# Tue Mar 16 13:42:26 2021 -
# 字符编码：UTF-8
# R 版本：R x64 4.0.4 for window 10
# cgh163email@163.com
# 个人笔记不负责任，拎了个梨🍐
.rs.restartR()
require(geoviz)
rm(list = ls());gc()
?mapzen_dem#通过“Amazon公共数据集”从“mapzen”获取数字高程模型（DEM）数据
lat = 54.4502651
long = -3.1767946
square_km = 2
dem <- mapzen_dem(lat, long, square_km, max_tiles = 2)
terra::plot(dem)
# Tue Mar 16 13:48:05 2021 --end
