mo
((including forest and open areas) and mv
((including water) from the downloaded data. The names are not really mo
and mv
but instead something more similar to: fastighetskartanVektor_MO_1302_epsg3006_polygon
To add files:
:File » Add Data
You will now a create a study area of 30000 X 30000 meters. Click on
:Customize » Toolbars » Draw
In the toolbar that appears; click on the Rectangle
tool to mark up the area you want to work with. Rightclick your rectangle, choose Properties
, and Size and Position
. Type 30,000 m for width and height in the Size and click OK
. Then go to
:Drawing » Convert Graphics To Features
Make sure the output file is saved in your folder ((D:\Undervisning_HumangeostudX\…) and name it studyarea
.
To avoid border effects; create a buffer ((Geoprocessing » Buffer) of 1200 meters. Name it studyarea_buffer
.
===Calculate the distance from water===
First we want to create a raster layer were the pixels indicate the distance to the nearest water. This is done with the tool Euclidean Distance
:
:ArcToolbox » Spatial Analyst Tools » Distance » Euclidean Distance
((If Tool Not Licensed
? Customize » Extensions…)
The input is the water ((mv) and give a name and location for the file that will be created. Also set the pixel size to 100 meters. Then click Environments
. Under Processing Extent
, choose to have the same extent as layer studyarea_buffer. Click OK
.
((((((Question 1: What does it mean when a pixel in the created euclidean distance layer have the value 1000?