The user specifies the location of the pressure taps (or a contour generation point) by clicking on the imported image with a user-friendly tool. The tap coordinates can also be entered or altered using a spreadsheet-like interface. Each tap is assigned to a particular channel of data or an arithmetic calculation involving one or more channels of data - data can be normalised for example. Each tap can be given a unique, relevant label to allow easy identification.

Taps are grouped into zones that define an area for pressure contour generation, thus ensuring that contours are not indiscriminately generated over edges or between faces. For example, each face of a building model can be assigned an independant zone, allowing all faces to be contoured and displayed simultaneously. The creation of zones completes the configuration process and the whole configuration (including image file, tap and zone information) can then be saved for future use.

With the configuration complete, pressure contours will be generated over the contour zones from the sampled channels of pressure data, in real-time. Other settings for the contour generation can also be specified and saved to the configuration file, e.g. contour triangulation level, opacity, range mode, colour map.