DH2320 Lab 5

Introduction to 3D visualization

Visualizing complex data in an intuitive way is not a trivial thing. In this lab we used the program ParaView to make visualizations of given datasets.

Visualizing a vector field

Using the StreamTracer tool to simulate points in the vector field and combining it with the top and bottom Slice filter it becomes obvious how the vector field is behaving. The arrows shows the direction of the vector field.

Vector field

Analyzing the air quality of a kitchen

In order to see where dust may be collected in the kitchen I simulated the air velocity with the StreamTracer tool. Starting points for the points was placed along the edges of the door and the Integration direction was set to FORWARD. It looks as if the air velocity is very low at both sides of the "kitchen isle" so dust will most likely end up there.

Dust collection

The pressure could be visualized by using the Contour filter. To find the maximum pressure a Contour filter was used with only the maximum pressure as an entry under Isosurfaces. A Glyph filter could then be added to show the maximum as a point.

Air pressure

The approach to find the maximum air velocity was the same as finding the maximum air pressure. In order to get the magnitude from the three velocity components (x, y & z) the Calculator filter was used, calculating the length of the vector.

Air velocity

Volume rendering

Having a set of scanned images of a head we could display them as a volume rendering, by setting Representation to Volume. The Color Map was modified in order to display interesting areas, such as extracting the bone.

Skull & soft tissue