plsdiplz - Set parameters incrementally (zoom mode) that define current plot-space window
plsdiplz(xmin, ymin, xmax, ymax)
Set relative minima and maxima incrementally (zoom mode) that define the current plot-space window. This function has the same effect as plsdiplt(3plplot) if that function has not been previously called. Otherwise, this function implements zoom mode using the transformation min_used = old_min + old_length*min and max_used = old_min + old_length*max for each axis. For example, if min = 0.05 and max = 0.95 for each axis, repeated calls to plsdiplz(3plplot) will zoom in by 10 per cent for each call.
Redacted form: plsdiplz(xmin, ymin, xmax, ymax)
This function is used in example 31.
Many developers (who are credited at http://plplot.org/credits.php) have contributed to PLplot over its long history.
PLplot documentation at http://plplot.org/documentation.php.