User's Guide

Virtualwind   →   Monitor Data Visualization   →   Actors   →   Orthoslice Vectors

Orthoslice Vectors

This Actor shows a vector quantity (described below) on an orthoslice –– a slice plane of the Domain volume that is orthogonal to the Domain's X, Y, or Z axis.

Virtualwind uses "SliceOrientation" to set the axis (i.e., X, Y, or Z) that the orthoslice is orthogonal to and uses "SliceIndex" to choose a particular slice in that orientation. For example, if you have set the wind resolution to be 32 x 64 x 128 then you will have available SliceIndex's in the range [0, 31], [0, 63], and [0, 127] for the X, Y, and Z SliceOrientations, respectively.

A vector quantity is a quantity that has not only a magnitude but also a direction in 3D space, such as the wind velocity. By using this Actor, for example, you can show the wind velocity of any orthoslice, say, the slice plane parallel to the XY plane at a certain height (Z coordinate).

This Actor automatically extracts the minimum and maximum magnitude of the vector quantity at points on the orthoslice. They are used as the default limits to color map the vectors (apply colors to the vectors). You can customize the minimum and maximum limits of the color map to highlight a particular magnitude range.

You can also change the length of the vectors displayed on the screen. By default, it is set to 1.

The following figure shows an example of the wind velocity on an orthoslice parallel to the XY plane of the Domain with the custom color map limits set to 0~13m/s (the extracted maximum mean speed on this slice was 18.55m/s).