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Introduction
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This application has been developed in the course of the Visualisierung LU during winter term 2007/2008.
It enables you to visualize 2D flow data
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Graphical User Interface (Overview)
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The main window basically consists of up to 3 panels:
- rendering panel: here you can see the result of the visualisation
- control panel: allows you to load datasets, define the type of rendering, etc.
- transfer function panel: used for creating a transfer function
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Load/Save
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- Load Dataset: allows you to load a datasets of type DAT
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Save Image: save an image to a file (JPEG)
- Resolution: 320 up to 2048 pixel (horizontal)
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Rendering (Arrow)
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- Length As...: the length of the arrows should be represented by the select property
- Color As...: the color of the arrows should be represented by the select property
- Distance: distance between the arrows
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Rendering (Background)
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- Color As...: the color of the skalar values (pixels) should be represented by the select property
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Rendering (Combined)
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- a combination of the activated rendering modes
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Transfer Function
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In rendering modes Arrow, Background and Streamline you have the possibility to define a transfer function wich is used for mapping the data value to color and associated opacity values.
It is also possible to load or save a transfer function in these modes by using the buttons Load... and Save...
Additionally the minimum and maximum values of the selected property are displayed.
- By clicking with the left mouse button into the area of the transfer function you create a point at this position
- By using the "drag & drop" method you can change the position of the the point. Simply click on a point, hold the mouse button pressed and then move the mouse. When you release the button again the point is set at the new location.
- Double clicking onto a point opens a window where you can define its color.
- Clicking with the right mouse button onto a point removes it from the transfer function and its neighbour points are connected with each other.
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