• Use case: From an elevation data set, extract a subset given by a bounding box and deliver either GIS-ready (with values unchanged) or visualization-ready (with height translated into color codes)
• Dataset: ICGC Elevation data set; coverage created from ASCII file and separate XML file with INSPIRE metadata
• Service used: OGC WCPS

Here is another option: traffic-light coloring to highlight specific height, such as for flood danger maps: