Displaying the flow through a half cylindrical pipe using IRIS Explorer under Windows NT. The fluid velocity has been calculated using PHOENICS, the popular CFD package, and read into the map using the ReadPhoenics module. OrthoSlice and VectorDisplay are used to show the velocity in one plane of the curvilinear grid. This map also features animation; the For module is used to step through the different slices, while the caption updates dynamically as the slice number changes.