RGComputeContour#

Computes the coordinates of several points lying on the contour of the region.

Synopsis#

#include "slepcrg.h" 
PetscErrorCode RGComputeContour(RG rg,PetscInt n,PetscScalar cr[],PetscScalar ci[])

Not Collective

Input Parameters#

  • rg - the region context

  • n - number of points to compute

Output Parameters#

  • cr - location to store real parts

  • ci - location to store imaginary parts

Note#

In real scalars, either cr or ci can be NULL (but not both). In complex scalars, the coordinates are stored in cr, which cannot be NULL (ci is not referenced).

See Also#

RG: Region, RGComputeBoundingBox(), RGSetScale()

Level#

intermediate

Location#

src/sys/classes/rg/interface/rgbasic.c

Implementations#

RGComputeContour_Ellipse() in src/sys/classes/rg/impls/ellipse/rgellipse.c
RGComputeContour_Interval() in src/sys/classes/rg/impls/interval/rginterval.c
RGComputeContour_Polygon() in src/sys/classes/rg/impls/polygon/rgpolygon.c
RGComputeContour_Ring() in src/sys/classes/rg/impls/ring/rgring.c

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