return value for the x coordinate of the center of the first circle, or null
return value for the y coordinate of the center of the first circle, or null
return value for the radius of the first circle, or null
return value for the x coordinate of the center of the second circle, or null
return value for the y coordinate of the center of the second circle, or null
return value for the radius of the second circle, or null
cairo.types.Status.Success, or cairo.types.Status.PatternTypeMismatch if pattern is not a radial gradient pattern.
Gets the gradient endpoint circles for a radial gradient, each specified as a center coordinate and a radius.