The Orthoimage for the City of Guelph
is in MrSID format. This procedure will describe the steps to bring
the image into ArcView and define a projection so that other datasets
can be layered.
Create a new project as a blank project.
To add the image, the MrSID Image
Support extension needs to be turned on.
Choose File and then Extensions. Scroll
down until you find the MrSID Image Support. Place a check
in the box beside this option and click "OK".
Add the image to a View in Arcview.
In the ArcView project manager, select
"Views" and click "New".
Click the "Add Theme" button.
In the "Add Theme" dialog
box, navigate to the directory where the MrSID image is located.
Change the Data Source Types to "Image Data Source"
by using the drop down menu. Choose the image file and click OK.
When the MrSID image appears in the
View, make the image visibile by clicking in the box beside the
Defining a Projection - This step is
necessary if the user wishes to overlay vector data such as roads,
municipal boundaries or building footprints.
Click View, then Properties. Then click
Click the Projection.. button
to bring up the Projection Properties dialog box.
Choose UTM - 1983 from the Category drop down menu and Zone
17 from the TYPE dropdown menu. Click OK. (Then click
OK to close the Properties dialog box.)
Adding Vector Data
Click on the Add Theme
and navigate to the location where the vector data is stored. For
Data Source Types: select Feature Data Source from
the drop down menu. Click OK.
To make the theme visible, check in
the box beside the vector data theme name.