FloVis

What is it ?	This Program is designed for viewing computer 2D flow data interactively. The flow data is displayed using various flow visualization techniques.
Features	Two Layers of Flow Visualisation Color Coded Flow: Speed, Direction, Additional Data Line Integral Convolution Evenly Spaced Streamlines and Arrows Manually Set Stream Lines Line Integration: Euler, Runge-Kutta
Requirements	Microsoft Windows 95/98/NT/2000/XP with OpenGL
Download	Download FloVis 1.0 with MSVC++ 6.0 Source Code (kontaktiere die Übungsleitung) ZIP file, 250KB
Screenshot
Rendering Examples	(1) Speed - (2) Direction - (3) Direction + LIC - (4) Direction + LIC + Arrows - (5) Pressure + Stream Lines
User's Guide	Buttons Draw : Draws flow using current settings Draw Selection : Draws selected area using current settings Reset : Resets selection and draws Flow using current settings Draw ESS : Draws equaly spaced streamlines using current settings Background Parameters Enable Layer: If checked this layer is displayed Line Integral Conv: If checked, Line Integral Convolution (LIC) is applied on the next drawing after pressing the Button Draw, Draw Selection or Reset Speed: Data source for the background layer is the speed information (vector length) of the flow data Direction: Data source for the background layer is the direction of the flow data" other: Data source for the background layer is one of the additional data channels of the flow data, select the channel from the list The Line Integration Box: The settings for line integration are used in LIC. Euler: selects the Euler integration method Runge-Kutta-2: selects the Runge-Kutta-2 integration method Runge-Kutta-4: selects the Runge-Kutta-4 integration method Line Length: Maximum line length in pixels of the integrated line Step Length: Scaling factor for the direction vectors of the flow Steps: Maximum number of integration step Edit Transfer Function opens the Transfer Function Window Foreground Parameters Enable Layer: If checked this layer is displayed Arrows: displays arrows Stream Lines (ESS): displays equaly spaced stream lines, press Draw ESS to redraw the using the current settings The Arrows Box: Settings for arrow drawing Grid Distance: Distance between the rotation points of the arrows Arrow Length: Select the data source which is used for the arrow length Arrow Width: Select the data source which is used for the arrow width The Stream Lines (ESS) Box: Settings for equaly spaced stream lines. Press Draw ESS to redraw the using the current settings Separation Distance: Distance of potential starting points of a stream line from a stream line Min. Dist. Precentage: Percentage of the Separation Distance: Minimum distance between streamlines Transfer Function Window Click into the color bar below the color wheel to apply the Current Color on the transfer function. Click on Choose Color to select the Current Color. Click on Blur Colors to blur the colors to get smooth color shades. If wrap around is checked, the bluring wraps around at the ends of the color bar. That's good for creating a color table for visualizing directional data. A predfined color table can be selected by clicking on one element in the Select predefined colors list.