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Plotting a Grid

The most comprehensive plotting function available is astGridastGrid, which can be used to draw labelled coordinate axes and, optionally, to overlay coordinate grids on the plotting area (Figure 8). The routine is straightforward to use, simply requiring a pointer to the PlotPlot:

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It will draw both linear and curvilinear axes and grids, as required by the particular Plot. The appearance of the output can be modified in a wide variety of ways by setting various Plot attributes. The Label attributes of the current FrameFrame are displayed as the axis labels in the grid, and the TitleTitle attribute as the plot title. Sub-strings within these strings can be given different appearances, or turned into super-scripts or sub-scripts, by the inclusion of escape sequences (see section §21.13) within the Label attributes.