Visualization of Streamlines
Streamline visualization is a technique used in computer graphics and scientific visualization to illustrate the paths that massless particles follow within a vector field. This method is widely used in fields such as fluid dynamics, aerodynamics, and meteorology to analyze flow patterns, identify vortices, and better understand complex fluid behaviors. By tracing curves that remain tangent to the velocity field at every point, streamline visualization provides an intuitive representation of steady-state flow characteristics.
To open the feature-streamline.vws workspace in Voreen, follow these steps:
- Navigate to File → Open Workspaces.
- Go to Workspaces.
- Select
feature-streamline.vws. - Click Open and switch to Application Mode.
-
Input Vectorfield:
Use Clear Volume to remove the current input file and Load Volume to import new data. -
Seed Mask (Optional):
Load a segmentation of the volume, which can be created using methods such as Random Walker. -
Streamline Creation:
Defines the number of seed points and starts the computation of streamlines. -
Streamline Selection:
Specifies the region of interest (ROI) where seed points are placed. - Streamline Predicates:
Needs to be addeted
-
Streamline Bundling:
Configures how streamlines are grouped within the visualization. -
Streamline Rendering:
Adjusts the rendering style, such as displaying streamlines as tubes or lines, and modifying their color and intensity.
As mentioned, the region of interest (ROI) can be adjusted in the Streamline Selection properties. Alternatively, you can modify it directly in the canvas by selecting and repositioning the arrows. Dragging them to a new location updates the ROI accordingly.
This page introduces the predefined streamline workspace, but how can the visualization be further enhanced? To explore extensions and modifications, visit Visualization on Streamline Continued, where you will find details on expanding the network of this workspace.