The sector command creates a two-dimensional plot data object, which when displayed is a sector of the disk of radius r and centered at [x,y].  The sector starts at radian angle a and ends at radian angle b.

If the radius is given as a range r1..r2, the sector of an annulus of inside radius r1 and outside radius r2 is created.

The plot data object produced by the sector command can be used in a PLOT data structure, or displayed using the plots[display] command.

Remaining arguments are interpreted as options, which are specified as equations of the form option = value. For more information, see plottools and plot/options.

The name pieslice is accepted as a synonym for sector for compatibility with earlier releases.

$\mathrm{with}\left(\mathrm{plottools}\right)\:$

$\mathrm{with}\left(\mathrm{plots}\right)\:$

$c≔\mathrm{sector}\left(\left[1\,1\right]\,5\,0..\frac{\mathrm{Pi}}{4}\,\mathrm{color}\=\mathrm{blue}\right)\:$

$\mathrm{display}\left(c\,\mathrm{axes}\=\mathrm{none}\,\mathrm{scaling}\=\mathrm{constrained}\right)$

$\mathrm{display}\left(\mathrm{sector}\left(\left[0\,0\right]\,1..2\,\frac{\mathrm{Pi}}{3}..\frac{\mathrm{Pi}}{2}\,\mathrm{color}\=''Khaki''\right)\,\mathrm{axes}\=\mathrm{none}\,\mathrm{scaling}\=\mathrm{constrained}\right)$

$d≔\mathrm{sector}\left(\left[1\,1\right]\,5\,\frac{\mathrm{Pi}}{4}..\frac{4\mathrm{Pi}}{3}\,\mathrm{color}\=\mathrm{red}\right)\:$

$e≔\mathrm{sector}\left(\left[1\,1\right]\,5\,\frac{4\mathrm{Pi}}{3}..\frac{35\mathrm{Pi}}{18}\,\mathrm{color}\=\mathrm{green}\right)\:$

$f≔\mathrm{sector}\left(\left[1\,1\right]\,5\,\frac{35\mathrm{Pi}}{18}..2\mathrm{Pi}\,\mathrm{color}\=\mathrm{yellow}\right)\:$

$\mathrm{display}\left(c\,d\,e\,f\,\mathrm{axes}\=\mathrm{none}\,\mathrm{scaling}\=\mathrm{constrained}\right)$

The plottools[sector] command was introduced in Maple 16.

For more information on Maple 16 changes, see Updates in Maple 16.