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Plot Layout

Each plot requires the calculation of a series of boxes (rectangular screen areas).

These are of two types:

These calculations are done automatically, but some cases can be specified by the user. These are:

1. PlotBox - isigraph window size, or the parameter to the eps or pdf commands.

2. SubBox - parameter to the sub command.

3. DrawBox - parameter to the new or use commands.

4. KeyBox - position determined by parameters to the keypos option.

The layout calculations then determine the frame boxes, in decreasing size:

1. PlotBox Pxywh - entire graphic window.

2. SubBox Sxywh - a subset of Pxywh.

2. DrawBox Dxywh - area used for the specific plot. If there is only one plot and it takes the entire window, then it is the same as the SubPlotBox.

3. The following item boxes are then calculated and positioned so as to avoid overlaps:

4. The inside area remaining is OutBox Oxywh, the area available for drawing an outside key. In this case, the key item box is calculated:

5. LabelBox Lxywh - area that remains after positioning the outside key item boxe. Labels are drawn in this box.

6. FrameBox Fxywh - area in which the plot axes are drawn.

7. GrafBox Gxywh - area in which the data is plotted.

8. An inside KeyBox is drawn after drawing the rest of the plot.


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