Patent ID: 7574302
Filing Date: 2009-08-11
Classification: G01C,G06Q,G09B

Abstract:
1. Apparatus for defining a parcel network in a control coordinate system, the parcel network being formed from a number of interconnected parcels, and each parcel being formed from a number of interconnected boundary lines, the apparatus including: a) an input for receiving survey data defining the number of parcels, the survey data specifying the distance and direction between end points of the interconnected boundary lines for each parcel; b) a store for storing the survey data; c) a display; and d) a processor adapted to: wherein the processor is further adapted to join the parcels together by: defining the relative positions of the parcel end points in an arbitrary coordinate system; causing the user to define a join between at least two parcel end points of the unjoined parcel and at least two network points; determining a parcel transformation which maps the relative coordinates of the at least two parcel end points to the network coordinates of the corresponding network points; and applying the parcel transformation to each of the parcel end points, to thereby map the parcel coordinates into the network coordinate system, thereby joining the parcels.