n*****r
发帖数: 2447 | 1 It is a very stupid question -_____-, but I still want to know how.
I have the DEM file, and now i just need a small piece of it. I have a
polygon(shapefile), which is the boundary of a watershed, and now I want to
cut the DEM file using this polygon. But Arc just does not allow me to do
that. I used the Analysis Tools--Extract--Clip. But I can not input the DEM
file...Why?
I am not a master of GIS, just need to use the DEM file to finish my
hydrologic analysis.....
Thank you.... |
A*****r
发帖数: 795 | 2 use the raster calculator in Spatial Analysis module.
google it |
n*****r
发帖数: 2447 | 3 haha, thank you! I finally figure out how to do it. Still runing GeoHMS....
【在 A*****r 的大作中提到】
: use the raster calculator in Spatial Analysis module.
: google it
|
G*******s
发帖数: 76 | 4 HEC...做什么呀？
【在 n*****r 的大作中提到】
: haha, thank you! I finally figure out how to do it. Still runing GeoHMS....
|
m******t
发帖数: 147 | 5
to
---------------------------
who told you this? did you try gridclip in grid module?
DEM
【在 n*****r 的大作中提到】
: It is a very stupid question -_____-, but I still want to know how.
: I have the DEM file, and now i just need a small piece of it. I have a
: polygon(shapefile), which is the boundary of a watershed, and now I want to
: cut the DEM file using this polygon. But Arc just does not allow me to do
: that. I used the Analysis Tools--Extract--Clip. But I can not input the DEM
: file...Why?
: I am not a master of GIS, just need to use the DEM file to finish my
: hydrologic analysis.....
: Thank you....
|
G*******s
发帖数: 76 | 6 孩子们哪里知道命令行，都是用鼠标点
module?
【在 m******t 的大作中提到】
:
: to
: ---------------------------
: who told you this? did you try gridclip in grid module?
: DEM
|
C*********g
发帖数: 3728 | 7 that's nice. When I learned AML years ago, my teacher also told me that's
not possible to clip to a shapefile...
module?
【在 m******t 的大作中提到】
:
: to
: ---------------------------
: who told you this? did you try gridclip in grid module?
: DEM
|
S****t
发帖数: 1186 | 8 one needs to convert the shapefile to coverage first to use the command
mentioned by myaspect.
【在 C*********g 的大作中提到】
: that's nice. When I learned AML years ago, my teacher also told me that's
: not possible to clip to a shapefile...
:
: module?
|
i****y
发帖数: 12 | 9 Arctoolbox->Spatial analysis->Extraction->Extract by mask |
