Method for transforming mapping data associated with different view planes into an arbitrary view plane

摘要

A computer-implemented method for rendering mapping data is provided. The method includes obtaining mapping data for displaying a map image, wherein the mapping data comprises data of an image corresponding to a view plane, the view plane comprising an imaginary plane formed perpendicular to a direction of a viewer's line of sight. The method also includes projecting the obtained mapping data onto a reference view plane, identifying a user-selected view plane in which to display the map image, transforming the projected mapping data to correspond to the identified user-selected view plane, and generating the map image based on the transformed mapping data. Systems and machine-readable media are also provided.

主权项

1. A computer-implemented method for transforming mapping data, the method comprising:
obtaining, by one or more computing devices, mapping data for displaying a map image, wherein the mapping data comprises data associated with a first image corresponding to a first view plane and data associated with one or more counterpart images corresponding to a second view plane, the first view plane comprising an imaginary plane formed perpendicular to a direction of a viewer's line of sight, and the second view plane being different from the first view plane; receiving, by the one or more computing devices, a user input indicative of a user-selected view plane in which to display the map image, the user-selected view plane specifying a change in an azimuth angle and an elevation angle from the first view plane; responsive to receiving the user input indicative of the user-selected view plane, projecting, by the one or more computing devices, the obtained mapping data onto a reference view plane, the reference view plane being different from the first view plane and the second view plane; responsive to projecting the obtained mapping data onto the reference view plane, transforming, by the one or more computing devices, the projected mapping data to correspond to the user-selected view plane; and generating, by the one or more computing devices, the map image for viewing from a perspective of the user-selected view plane based on the transformed mapping data.