Calculate a multiplication factor for the Y dimension to correct
for unequal plot aspect and coordinate ratios on the current graphics device.

Usage

getYmult()

Arguments

Value

The correction factor for the Y dimension.

Author

Jim Lemon

Details

getYmult retrieves the plot aspect ratio and the coordinate ratio for
the current graphics device, calculates a multiplicative factor to equalize
the X and Y dimensions of a plotted graphic object.