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1. Introduction
This tutorial is intended to familiarize you with the Geomatica Toolbar and describe
the basics of viewing data using Geomatica Focus.
All data used in this tutorial is available in the \Geomatica_v100\demo directory.
2. Starting Geomatica
To start Geomatica:
a) Double-click the Geomatica desktop icon, or
b) Launch Geomatica from your system’s Start menu.
When you start Geomatica using the desktop icon, the Geomatica toolbar opens and
Focus starts automatically. All Geomatica applications can be started from the
Geomatica toolbar.
3. The Geomatica Toolbar
The Geomatica toolbar provides access to all Geomatica programs.
Figure 3.1: The Geomatica toolbar
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Each button on the Geomatica toolbar provides access to a specific Geomatica
program. The Geomatica programs are described below:
Focus
Focus is the main data visualization environment in Geomatica. Focus includes geospatial
processing algorithms, data capture functionality, and information extraction and
analysis tools.
OrthoEngine
OrthoEngine is a complete photogrammetry environment, offering geometric correction,
orthorectification, Mosaicking, and DEM extraction functionality, as well as 3-D
visualization and data extraction environments.
Modeler
Modeler is a visual scripting environment that provides an interactive methodology for
developing, automating, and batch-processing both simple and complex workflows.
EASI
EASI is a command-line-based scripting environment that provides workflow
development as well as customization functionality.
FLY!
FLY! is a visualization tool that renders perspective scenes and interactive ‘fly-throughs’
by using imagery and elevation information.
Chip Manager
The Chip Manager lets you create and manage image chip libraries that are used as
ground controls in orthorectification workflows.
GeoRaster Metadata Mapper
The GeoRaster Metadata Mapper lets you store, index, and manage geospatial files in
Oracle 10g databases.
License Manager
The License Manager provides Geomatica licensing and installation information and
options.
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3. Viewing Data in Geomatica Focus
When Geomatica is started from the desktop icon, Focus starts automatically. The
following illustration shows the basic components of the Focus interface.
Figure 2.2: The Focus interface
D
A
B
C
E
F
A. Menu bar B. Toolbar C. Maps and Files tabs D. Work area E. View area F. Status bar
Geomatica Focus is designed to work with geospatial data in more than 100 data
formats through PCI Geomatics Generic Database (GDB) technology. This format
flexibility, combined with a suite of easy-to-use viewing tools, makes Geomatica
Focus the perfect environment for viewing spatial data.
A major strength of Focus is its ability to easily view and navigate databases. This
section will show you how to open and view image layers, vectors, and attribute data
in Focus.
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3.1 Viewing Image Data in Focus
With Geomatica Focus started, you are ready to add data.
To open an image file in Focus:
1. In the Focus File menu, click Open.
The File Selector window opens.
2. In the Geomatica program files, locate and open the demo folder.
3. In the demo folder, select irvine.pix.
4. Click Open.
A Landsat multispectral image of Irvine, California opens in the Focus view
area.
Figure 3.1: The irvine.pix image in the Focus View area
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3.2 Viewing Vector Data in Focus
When a file is loaded into Focus, a default layer is presented in the viewer and listed
in the Maps tree. All other layers contained in the same file are listed in the Files
tree. It is possible to load any of these layers into the viewer and Maps tree.
To add a layer to the Files tree:
1. Click the Files tab.
A list of available files and layers are displayed from irvine.pix.
2. Expand the vector layer list of irvine.pix by clicking the next to it.
3. Right-click the Transportation layer and click View on the shortcut menu.
The Transportation layer displays in the Map tree as well as in the viewer.
3.3 Adjusting Layers in the Current View
In Focus, the Maps tree displays all data layers contained in the View area. You can
show or hide the items from the View area by clicking or clearing the check box in
the Maps tree next to the item. You can also change the display priority of a layer by
dragging it up or down the Maps tree.
To move a layer in the Maps tree:
1. Click the Maps tab.
2. Drag the Transportation layer to the bottom of the Maps tree.
The transportation vectors move below the imagery and do not display in the
View area.
3. Drag the Transportation layer to the top of the Maps tree.
The transportation vectors display in the View area.
3.4 Viewing Data Attributes
Attributes are characteristics of geographic features typically stored in tabular
format. In Focus, attributes can be viewed and edited using the Attribute Manager.
To open the Attribute Manager:
1. In the Maps tree, right-click the Transportation layer.
2. From the shortcut menu, click Attribute Manager.
The Attribute Manager opens.
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Two attributes are included in the transportation layer. ShapeID is an shape
identifier and Attribute is a code indicating road class for each vector segment.
4. Zoom and Pan Tools
When viewing data in Focus, it is important to be able to navigate the data
effectively. The zoom and pan tools allow you to do this quickly and easily.
Figure 4.1: Focus zoom and pan tools
4.1 Zoom Tools
There are several ways to zoom an image in the Focus viewer. The following zoom
tools are located on the Focus toolbar:
• Zoom Interactive
• Zoom In
• Zoom Out
• Zoom 1:1 Image Resolution
To zoom in on an image feature:
1. Click anywhere near the airport (t-shaped object) in the Focus View area.
2. On the Focus toolbar, click the Zoom to 1:1 Image Resolution button.
The image changes to a 1:1 resolution.
4.2 Pan Tool
The Pan tool is available when the View area is not at an overview magnification.
To pan an image:
1. On the Focus toolbar, click the Pan button.
2. Drag the image to where you want to move.
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5. Image Enhancement in Focus
The Focus toolbar includes commands for quickly enhancing and adjusting the
appearance of your images. These enhancements include contrast and brightness
adjustments.
Figure 5.0: The Focus image Enhancements, Contrast and Brightness buttons
5.1 Applying Image Enhancements
The standard Focus image enhancements are Linear, Root, Adaptive, Equalization,
and Infrequency. Image enhancements can be automatically applied using the
Enhancements menu.
To apply an enhancement to an image layer:
1. On the Focus toolbar, click the arrow next to the Enhancements button.
2. Select an enhancement from the Enhancements menu.
5.2 Adjusting the Image Contrast and Brightness
Interpreting image data is often made easier by adjusting the image contrast and
brightness.
To increase or decrease the image contrast or brightness:
1. On the Focus toolbar, click the arrow next to the Contrast or Brightness
button.
2. Select Decrease or Increase from the menu, depending on how you want to
adjust the image.
You Have Questions, We Have Answers
If you have questions or would like a personal demonstration, contact us today.
Phone: 1-905-764-0614
Email: info@pcigeomatics.com
Web: www.pcigeomatics.com
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