void usertoinch (x_in, y_in, x_inch, y_inch) SVC.C Level 3
float x_in, y_in The x-y pair in user units.
float *x_inch, *y_inch The returned pair in inches from the lower left corner of the plot.
usertoinch() takes an x-y pair in your user units and returns the inch values in 8192 space. The function works for linear, log, and polar plots. For the latter, x is the input radial coordinate, and y is the input angular coordinate. The returned coordinates are in x,y space.