Aguila is the current generation of visualisation software for PCRaster. PCRaster used to contain the Display application for 2D visualisation of raster maps and the Timeplot application for visualisation of timeseries data. And Victor Jetten (of NutShell fame) created the Drape application for 2½D visualisation of raster maps. Display and Timeplot are obsoleted by Aguila. This is one application for the visualisation of raster maps and timeseries data.
More information about Aguila, including the manual, can be found at the PCRaster Open Source Tools website.