Re: pollutants distribution over traffic map

From: Luo, Chao <chao.luo_at_nyahnyahspammersnyahnyah>
Date: Tue Apr 09 2013 - 15:40:43 MDT


I am try to plot pollutants conc. over map (with highways on map)in GA. The pollutants data are two dimension grids data. What I did in modified shapefiles_12.ncl script are:
First make poly map by poly = gsn_add_shapefile_polylines_subset(wks,map,shp_filename,"ROUTE",\
second read two dimensional data, and lat/lon, make plot by plot = gsn_csm_contour_map_ce(wks,dat2d_1(:,:),res)

Then overlay two plots by overlay(poly,plot).

But it gives error: fatal:Number of elements of dimension (0) of argument (0) is (464) in function (overlay), expected (1) elements. That means overlay function requires same dimension of poly and plot?

Thanks much,


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Received on Tue Apr 9 15:41:03 2013

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