CircleSkyRegion

class regions.CircleSkyRegion(center, radius, meta=None, visual=None)

Bases: regions.SkyRegion

A circle defined using sky coordinates.

Parameters:

center : SkyCoord

Center position

radius : Quantity

Radius in angular units

meta : RegionMeta object, optional

A dictionary which stores the meta attributes of this region.

visual : RegionVisual object, optional

A dictionary which stores the visual meta attributes of this region.

Attributes Summary

center	Descriptor class for SkyRegion which takes a scalar SkyCoord object.
radius	Descriptor class for SkyRegion which takes a scalar Quantity object.

Methods Summary

to_pixel(self, wcs)

Returns the equivalent region defined in pixel coordinates.

Attributes Documentation

center

Descriptor class for SkyRegion which takes a scalar SkyCoord object.

radius

Descriptor class for SkyRegion which takes a scalar Quantity object.

Methods Documentation

to_pixel(self, wcs)

Returns the equivalent region defined in pixel coordinates.

Parameters:

wcs : WCS instance

The world coordinate system transformation to assume

Returns:

pixel_region : PixelRegion object.