Introduction
Geocap is a software for mapping and modeling geoscientific data, designed with focus on interactivity and flexible control of visualization and manipulation. Geocap is operated through projects. The project "holds" the data in a folder-like structure, similar to Windows "File Explorer". All datasets are "children" of either a folder or another dataset. Geocap offers different project templates, giving you a pre-defined folder structure that fits your workflow for a specific type of work. In this tutorial collection we are going to use the Shelf/UNCLOS project template.
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This section will guide you through the basics of opening a project, explore and display the project data and navigate in the graphics window.
Exercises
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Starting Geocap
Initial Setup
working directory
auto save
Geocap Project
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Starting Geocap
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Start GeocapOn your start menu click Start > All programs > Geocap > Geocap 7.x.x - 64 > Geocap 7.x.x - 64 |
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Start Geocap on Windows 8.1
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User Documentation
Parts of the user documentation is found under the Help pulldown. There rest is found here: http://www.geocap.no/doc. Read briefly through the documentation to get an understanding of what you can expect to find in the documents.
The user documentations consists of:
- User Guide with detailed descriptions of Geocap usage.
- Reference manual with syntax and details of the commands in the Geocap scripting language.
- Installation Guide with details on installation, dongle drivers etc.
- Release Notes contains incremental updates and bug fix descriptions as well as major releases.
- Articles is a collection of articles on various topics that still is not included in the documentation.
- Tutorials contains thematic tutorials on products. The General tutorials mainly contains topics that are put in a better context within the more specialized product tutorials.
- FAQ is a list of Frequently asked questions, with their corresponding answers.
Initial Setup
Geocap comes with a range of settings which can modified to make it easier to work with. One of these settings is the working directory which is the folder Geocap will open every time you browse for something. We will now set this directory and we will also turn on auto save.
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Set working directory and auto save
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Geocap Project
The Atlantis project is built using the UNCLOS project template. This template consists of four main top level folders; Maritime lines, Seabed, Sediment data and Outer limit. The maritime lines folder will hold all the data that has no reference to depth or is located at the sea surface. The Seabed folder will hold all the data located at the seabed, like bathymetric profiles, foot of slope points and so on. The Sediment data folder will hold all the subsurface data like seismic, interpretations, velocities, sediment profiles etc. The Outer limit folder will hold all datasets which is used to construct the outer limit. We are now going to open the Atlantis project and look closer at this project structure.
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Open the Atlantis project
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Next time you can open the project by using going to File > Recent Projects. |
Pressing the small triangles (or '+' in older other Windows versions) to the left of a folder will display the folder's contents. Datasets and folders are organized very similarly to a file tree structure. A folder can contain other folders, or datasets.
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In the next exercise we are going to explore how the Atlantis project is structured. Taking notice of how folders and datasets are organized. Datasets and folders can be cut, copied, pasted, renamed and deleted. This is performed from the popup menu which appears when right-clicking a dataset. The right click popup menu also contains commands which may be executed on the datasets. Notice the different icons of the different datasets. They correspond to the schema of the data set. The name of the schema is written in the second column.
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Explore the project folder structure
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Note that there are two "modes" of the project view. Switch between these two by clicking on the tabs; List and Tree. List view sorts folder content into a separate window, while Tree view sorts everything into the tree itself. |
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A Geocap project is stored in a folder on your computer. The project consist of a ".db" file, which contains information about the project tree, and several files which contain the data sets. You should let Geocap manage the files in the project folder and should not store other files in this folder. If you want to make a backup of your projects, or if you want to exchange Geocap projects with other Geocap users you may zip the project folder with all the underlaying datasets into one file. This is convenient for sending e.g. to support@geocap.no. |
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Displaying Data
By right clicking a dataset a range of different visualization commands is made available. For each type of dataset Geocap will have a default command. This is the command which will be used when ticking the checkbox next to a dataset. We are now going to display the different datasets in the project using the default command.
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Display dataDisplay the various datasets in the project
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Note that by checking and unchecking the first level folder 1. Maritime Lines, or 2. Seabed all datasets displayed under this folder are shown and hidden. |
Navigating in the 3D window
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Now that we have displayed some of our data we can start navigating around the Atlantis continental shelf. Geocap is best operated using a three-button mouse with a wheel, see picture below. A two-button mouse or using the Touch-pad is possible but not recommended.
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You may use the computer mouse to move around in the display window. You do this by Navigating in the 3D graphics window is done by pressing one of the mouse buttons while the cursor is in the display graphics window, and moving the mouse while keeping the button pressed.
- Rotate - Left Press left mouse button + move
- Pan - Middle Press middle mouse button (or wheel) + move or Shift + left mouse button + move
- Zoom - Right Press right mouse button + move
- Scale Z - Mouse wheel (scroll)Scroll mouse wheel
- Spin - Ctrl + press left mouse button + move
The mouse buttons
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Navigate using the mouse
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Scrolling the mouse wheel is one way to scale depth (z) values of the dataset
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