R中的RasterLayer [英] RasterLayer in R

问题描述

我有一个包含几个.adf文件的GIS项目.当我刚接触ArcMap时，我不知道如何使用它们.我设法使用光栅库将它们读入r

I have a GIS project containing several .adf files. As I m new to ArcMap I don t know how to use them. I managed to read them into r using the raster library

r <- raster("w001001.adf") 

查看sum(r)时，我得到:

When looking at sum(r) I get:

sum(r)
class       : RasterLayer 
dimensions  : 1641, 1358, 2228478  (nrow, ncol, ncell)
resolution  : 0.008333333, 0.008333333  (x, y)
extent      : -47.63578, -36.31911, -20.93489, -7.259889  (xmin, xmax, ymin, ymax)
coord. ref. : NA 
data source : C:\Users\balal\Desktop\blabla\w001001.adf 
names       : w001001 
values      : 1, 15  (min, max)

我试图查找有关单元格大小和每个单元格的土地使用情况的信息(我假设土地使用情况与值有关，因为我有15种土地使用情况类别.)并将此数据放入表格中，可以写为.csv.R可以吗?还是我看错了文件?

I trying to find information regarding the size of the cells and the land use of each cell (I assume the land use is related to the values as I have 15 land use categories.) and bring this data into a table which I can write as .csv. Is this possible with R? Or am I looking at the wrong file?

很抱歉，我不清楚，但是我几乎不了解GIS.谢谢！

Sorry to be rather unclear but I hardly know anything about GIS. Thank you!

推荐答案

您始终可以以矩阵格式获取栅格文件中的信息(像元值):

You can always get the information inside the raster file (cell values) in matrix format:

r.matrix<-as.matrix(r)

每个单元格的大小由下式给出:

The size of each cell is given by:

resolution  : 0.008333333, 0.008333333  (x, y)

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