UInt32 maxX, UInt32 maxY)

[MANDATORY if not using default initialization] sets the minimum and maximum X and Y scales.

[MANDATORY if not using default initialization] sets the minimum and maximum X and Y scales. While a graph's actual X and Y axis lengths are values less than the screen's width and height, the actual values associated with a graph could be anything (e.g. X-axis showing 1998 to 2005 and Y axis showing 5000 to 10000). The scale values specify these values - and must be determined before setting the values.The Max scale values for each axis MUST be greater >= the highest numerical value in any data point of the graph for that axis.

The Min scale values for each axis MUST be <= the lowest numerical value in any data point of the graph for that axis.

**Parameters:****br**- pointer to the data structure**minX**- The minimum scale for X axis**minY**- The minimum scale for Y axis**maxX**- Minimum X axis scale**maxY**- Maximum Y axis scale**Returns:**- gErr for incorrect values,grLibNone for no error.

[**NOTE**] not required for PIE graphs.

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