plsdiplz: Set parameters incrementally (zoom mode) that define current plot-space window

The PLplot Plotting Library: Programmer's Reference Manual
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### `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` 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` will zoom in by 10 per cent for each call.

`xmin` (`PLFLT`, input) Relative (incremental) minimum in x. `ymin` (`PLFLT`, input) Relative (incremental) minimum in y. `xmax` (`PLFLT`, input) Relative (incremental) maximum in x. `ymax` (`PLFLT`, input) Relative (incremental) maximum in y.

Redacted form: `plsdiplz(xmin, ymin, xmax, ymax)`

This function is not used in any examples.

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