Vis > visualization > explorer > Explorer Sample Map 2
Explorer Sample Map 2
Sample Map - Isosurface, Annotation
Description
This map reads in NMC temperature data (must be 3-D) from a netCDF file and creates an isosurface in a bounding-box. The color and transparency of the isosurface are adjustable via IsosurfaceNaN (set Render into "Blended Transparency" mode).
This map also introduce the "Histogram" module which can give a good idea of the range of the entire data variable. Some of the input to "Histogram" is the output Min/Max from the "MinMaxNaN" module, which determines the minimum and maximum values of the dataset taking into account any "missing values". Note that there are two modules available for creating isosurfaces (Isosurface and IsosurfaceNaN). IsosurfaceNaN is used here because it is smart enough not to try to "contour" around missing data points, and it also does not exhibit some of the shading problems seen in Isosurface. The downside is that it is a bit slower than Isosurface and the outputgeometry is somewhat larger.
Also introduced here is the "Text2D" module, which is simple and very handy for annotating plots. In this case, the name of the file and the plotted variable are input to Render's "Screen" port to help document the image.
Availability
This map is available (gzip-compressed) as "isosfc_sample_1.map.gz".