plots and colors a rotated rectangle; color can be a palette

1 2 3 |

`mid ` |
midpoint of rectangle. |

`wx ` |
horizontal width. |

`wy ` |
vertical width. |

`col ` |
color palette to be used; also allowed are two extremes or one value. |

`values ` |
if not |

`zlim ` |
Only if values is not NULL: the minimum and maximum z values
for which colors should be plotted, defaulting to the range of the
finite values of the second column of |

`lwd ` |
width of external line. |

`lcol ` |
line color. |

`angle ` |
angle of rotation, in degrees. |

`... ` |
arguments passed to R-function polygon. |

If `angle`

=0, coloration starts from top to bottom. This is different
from `filledmultigonal`

,
where coloration proceeds from middle to external

`wx`

,`wy`

: horizontal and vertical width of the shape
Here "horizontal" and "vertical" denote the position BEFORE rotation

`values`

: if not `NULL`

, a matrix providing (radius,z-values)
couples, used for coloring.
Here radius are positive values denoting the relative distance between
the shapes centre and edge.
The radiusses are rescaled to be in [0,1] if needed.
z-values (2nd column of `values`

) together with `zlim`

and
`col`

denote the coloration level.

Colors in `col`

will be interpolated to the z-values and used to
color an interval as given by the input radiusses.

Karline Soetaert <karline.soetaert@nioz.nl>

`filledmultigonal`

, `filledshape`

,
`filledcylinder`

, `filledellipse`

`polygon`

, `rect`

for corresponding R-functions.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | ```
color <- shadepalette(grey(0.3), "lightblue", n = 50)
emptyplot(main = "filledrectangle")
filledrectangle(wx = 0.5, wy = 0.5, col = color,
mid = c(0.5, 0.5), angle = 0)
filledrectangle(wx = 0.25, wy = 0.25, col = "darkblue",
mid = c(0.5, 0.5), angle = 45)
filledrectangle(wx = 0.125, wy = 0.125, col = c("lightblue","blue"),
mid = c(0.5, 0.5), angle = 90)
color <- shadepalette(grey(0.3), "blue", n = 50)
emptyplot(c(-1, 1), main = "filledrectangle")
filledrectangle(wx = 0.5, wy = 0.5, col = color,
mid = c(0, 0), angle = 0)
filledrectangle(wx = 0.5, wy = 0.5, col = color,
mid = c(0.5, 0.5), angle = 90)
filledrectangle(wx = 0.5, wy = 0.5, col = color,
mid = c(-0.5, -0.5), angle = -90)
filledrectangle(wx = 0.5, wy = 0.5, col = color,
mid = c(0.5, -0.5), angle = 180)
filledrectangle(wx = 0.5, wy = 0.5, col = color,
mid = c(-0.5, 0.5), angle = 270)
``` |

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