LOCATION COORDINATE CONVERSION SERVICE, METHOD AND SYSTEM

摘要

One or more transformations are determined between a first, a second, and nth coordinate systems; the transformations are used to transform coordinates between the coordinate systems. The transformed coordinates may be used to provide maps and location services to end users, without inaccuracies which can occur when a user's location is provided in the first coordinate system but the user's location needs to be output to a map which uses the second or nth coordinate system.

主权项

1. A method of coordinate transformation, comprising:
in a computing device comprising a processor and a memory, which memory comprises instructions for an off-set determiner module and an off-set applier module; with the off-set determiner module,
obtaining a first and a second anchor point in a first coordinate system and a first and a second anchor point in a second coordinate system, which first anchor points in the coordinate systems are corresponding anchor points because they were obtained at a first same location in the real world and which second anchor points in the coordinate systems are corresponding anchor points because they were obtained at a second same location in the real world,determining that at least one set of the corresponding anchor points in the coordinate systems do not have the same valuesdetermining a transformation to make the corresponding anchor points in the coordinate systems have similar values and saving the transformation; with the off-set applier module,
receiving a coordinate in the first coordinate system,identifying an output coordinate system,assembling an output transformation to transform the first coordinate into an output coordinate in the output coordinate system, which output transformation comprises the transformation,transforming the coordinate in the first coordinate system into the output coordinate according to the assembled output transformation, andoutputting the output coordinate to a map system which utilizes the output coordinate system.