This graph displays an XYZ contour plot with custom boundary, using temperature data acquired during the month of January over the last 30 years.
Triangulation is automatically used to create the plot from the XYZ data, thereby eliminating the need to convert data to a matrix. With this plot type, a custom boundary can be specified by providing two additional data sets for the X and Y values of the boundary. The Contouring Info tab also provides control such as a smoothing parameter for the triangulation.
Note: The file for the temperature data is supplied with Origin in the "\Samples\Graphing\" folder. It is called "US Mean Temperature.dat".