Exercise 3:

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Exercise 3

• Getting data into
• IDRISI

WE WILL BE USING THE ANDES VERSION OF IDRISI
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Purpose of Ex3

• To teach you the problems that arise when
  converting manuscript map data to raster digital
  data
• Usually you will convert Vector data to raster
  much easier.
• BUT how does the software do that!

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How is it done manually?

• The data is entered into a spreadsheet in this
  case Excel
• The spread sheet is saved as a
• Space delimited text (.prn) file
• It is then imported into IDRISI
• And the Document file is created
• But first

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Setting up folders
Working folder is C\Workspace\for556\Ex3
Resource folder is C\Workspace\for556\Nifkin32
Created on any machine you use!
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Setting up folders
Move for556 contents around from machine to
machine
Working folder is C\Workspace\for556\Ex3
Resource folder is C\Workspace\for556\Nifkin32
Created on any machine you use!
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Why

• Because
• C\ Workspace in on all cluster machines
• By creating this structure on your flash stick
  you can move projects around easily
• And neither you nor IDRISI will get confused

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IDRISIs data management

• Consists of two kinds of data folders
• The working folder save stuff to ?
• Resource folders get stuff from ?
• The collection of Paths to these folders make up
  an IDIRSI project

C\Workspace\for556\Ex3
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In Andes version
Click here to open
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In IDRISI Kilimanjaro

• The first thing you do is set up the PROJECT
  ENVRONMENT
• How?
• Click on menu File/Data Paths

And you get.
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The Proj Environment Dialog
Your current working folder
Navigate to folders
NIFKIN And Any other folders that have data you
might use
In the Exercise EX3 in this case
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OK, now about data

• Launch Excel
• Type in data that you recorded in Ex2
• ONE map layer at a time!
• No column or row identifiers
• When the data is all in and verified
• Save it as

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Save Excel

• As Text
• Space delimited (.prn)
• You will get some weird messages about the file
  type not supporting
• Click OK
• Click OK on the next one also
• NOW CLOSE EXCEL!!!!!!
• Click OK about saving changes a couple of times

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Why close Excel?

• Because if the file is open IDRISIs import
  function just will not see it!
• This is a Windows thing not an IDRISI Thing

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Here we go

• Launch IDRISI
• Set up your Project Environment (and save it as
  Ex3 in Ex3 so you can go back to it).
• Click on

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Spread Sheet To IDRISi
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SSTIDRIS
Browse for the file you just created
Type in the name for the file w/o extensions
Click
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• Enter in the correct values for the image
• Reference is plane
• Units Feet
• Click OK

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SSTIDRIS
Click
c
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Title
Click OK when done
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This is my input to Excel
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And this is IDRISIs view
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Need to edit metadata?
Kilimanjaro
OR
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Kilimanjaro Metadata Dialog
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Need to edit metadata?
Andes
Changed this by clicking and then typing
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Need to edit metadata?
Andes
Chang this by clicking field and then drop down
list
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Need to edit metadata?
To change legend entries click here and this
dialog opens
Andes
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Summary

• Enter data into Excel
• Saving as .prn or .txt file
• Close Excel file
• Import to IDRISI using SSTIDRIS
• Create Metadata
• Rows, columns, mins and maxs, etc
• Title