A method and apparatus are provided for transforming data provided in a spherical format. A spherical format is created of an image obtained by a camera, the spherical format comprising a notional sphere that has a centre corresponding to the position from which the image was obtained by the camera. A first surface represented in the image had a first orientation and was at a first distance from the camera when the image was obtained. A selected point in said spherical format is obtained, which is defined by spherical coordinates consisting of a yaw angle and a pitch angle defining a line from the centre of the sphere. A plane is identified that has the first orientation and is at the first distance from the centre. A location in a Cartesian coordinate system is calculated where the plane intersects with the line, wherein two of the axes of the Cartesian coordinate system are parallel to the first plane. Thereby, the position of the point on the first surface is identified. This location, and other locations corresponding to to other selected points, may be used to transform data in the spherical image for display.