RectangleSkyRegion

class regions.RectangleSkyRegion(center, width, height, angle=<Quantity 0. deg>, meta=None, visual=None)[source]

Bases: regions.core.core.SkyRegion

A rectangle in sky coordinates.

Parameters
centerSkyCoord

The position of the center of the rectangle.

widthQuantity

The width of the rectangle (before rotation) as an angle.

heightQuantity

The height of the rectangle (before rotation) as an angle.

angleQuantity, optional

The rotation angle of the rectangle, measured anti-clockwise. If set to zero (the default), the width axis is lined up with the longitude axis of the celestial coordinates.

metaRegionMeta, optional

A dictionary that stores the meta attributes of this region.

visualRegionVisual, optional

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

Attributes Summary

angle

The rotation angle measured anti-clockwise as a astropy.units.Quantity angle.

center

The center position as a astropy.coordinates.SkyCoord.

height

The height of the rectangle (before rotation) as a astropy.units.Quantity angle.

width

The width of the rectangle (before rotation) as a astropy.units.Quantity angle.

Methods Summary

to_pixel(wcs)

Return the equivalent region defined in pixel coordinates.

Attributes Documentation

angle

The rotation angle measured anti-clockwise as a astropy.units.Quantity angle.

center

The center position as a astropy.coordinates.SkyCoord.

height

The height of the rectangle (before rotation) as a astropy.units.Quantity angle.

width

The width of the rectangle (before rotation) as a astropy.units.Quantity angle.

Methods Documentation

to_pixel(wcs)[source]

Return the equivalent region defined in pixel coordinates.

Parameters
wcsWCS

The world coordinate system transformation to use to convert between sky and pixel coordinates.

Returns
pixel_regionPixelRegion

A pixel region.