ncl如何添加线shp文件_添加底图的另一种方法——shp文件
时间: 2023-08-07 21:06:53 浏览: 105
要在NCL中添加线shp文件,您可以使用以下代码:
```ncl
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
begin
;-- Open a workstation
wks = gsn_open_wks("x11","plot_shp")
;-- Read in the shapefile
shp_file = addfile("your_shp_file.shp","r")
;-- Extract the shapefile data
shp = shp_file->your_shape_name
;-- Define the map projection
mpProjection = "LambertConformal"
;-- Define the map resources
mpRes = True
mpRes@mpProjection = mpProjection
mpRes@mpLimitMode = "LatLon"
mpRes@mpMinLonF = -125.
mpRes@mpMaxLonF = -67.
mpRes@mpMinLatF = 24.
mpRes@mpMaxLatF = 50.
mpRes@mpCenterLonF = -95.
mpRes@mpCenterLatF = 38.
mpRes@mpDataBaseVersion= "MediumRes"
;-- Create the map
map = gsn_csm_map(wks,mpRes)
;-- Set the line resources
lineRes = True
lineRes@gsLineColor = "red"
lineRes@gsLineWidth = 2.
;-- Add the shapefile to the map
gsn_add_shapefile_polylines(wks,map,shp,lineRes)
end
```
这段代码将打开一个x11工作站,并在地图上添加一个名为"your_shape_name"的线shp文件。您需要将"your_shp_file.shp"替换为您的shp文件的路径和文件名。您还需要根据自己的地理数据设置地图投影和资源。
希望这可以帮助您添加线shp文件并在NCL中绘制地图!