plimage: Plot a 2D matrix using cmap1 with automatic color adjustment

`plimage`: Plot a 2D matrix using cmap1 with automatic color adjustment
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#### `plimage`: Plot a 2D matrix using cmap1 with automatic color adjustment

`plimage (` | idata,
| nx,
| ny,
| xmin,
| xmax,
| ymin,
| ymax,
| zmin,
| zmax,
| Dxmin,
| Dxmax,
| Dymin,
| Dymax`)`;

Plot a 2D matrix using the cmap1 palette. The color scale is automatically adjusted to use the maximum and minimum values in idata as valuemin and valuemax in a call to `plimagefr`.

`idata` (``PLFLT_MATRIX``, input)

  A matrix containing function values to plot. Should have dimensions of `nx` by `ny`.

`nx, ny` (``PLINT``, input)

  Dimensions of idata

`xmin, xmax, ymin, ymax` (``PLFLT``, input)

  The `x` and `y` index ranges are linearly transformed to these world coordinate ranges such that `idata[0][0]` corresponds to `(xmin, ymin)` and `idata[nx - 1][ny - 1]` corresponds to `(xmax, ymax)`.

`zmin, zmax` (``PLFLT``, input)

  Only data between zmin and zmax (inclusive) will be plotted.

`Dxmin, Dxmax, Dymin, Dymax` (``PLFLT``, input)

  Plot only the window of points whose plot coordinates fall inside the window of (Dxmin, Dymin) to (Dxmax, Dymax).

Redacted form:

- General: `plimage(idata, xmin, xmax, ymin, ymax, zmin, zmax, Dxmin, Dxmax, Dymin, Dymax)`

This function is used in example 20.

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