Static and dynamic contours

• US 20090087034A1
• Filed: 10/01/2007
• Published: 04/02/2009
• Est. Priority Date: 10/01/2007
• Status: Active Grant

• Current Assignee: MiTAC International Corporation (MiTAC Holdings Corp.)
• Original Assignee: Magellan Navigation Incorporated (MiTAC Holdings Corp.)
• Inventors: Doucette, Justin John, Upparapalli, Karunanidhi
• Granted Patent: US 8,554,475 B2
• Time in Patent Office: Days
• US Class Current: 382/113
• CPC Class Codes: G01C 21/3867 Geometry of map features, e.g. shape points, polygons or for simplified maps
• CPC Class Codes: G01C 21/3878 Hierarchical structures, e.g. layering
• CPC Class Codes: G09B 29/12 Relief maps relief models G09B25/06

Abstract

Methods and apparatus, including computer program products, for a static and dynamic contours. A method includes rendering a contour map including static contours and dynamic contours, and displaying the contour map on a device to a user. A Global Positioning System (GPS) device includes a processor coupled with an input device, memory, and the display, and the processor linked to a GPS receiver coupled with a GPS antenna, the memory including a vector source database, a parameter source database and a contour map process to render a topographic map comprising static contour lines and dynamic contour lines.

Claims

1. A method comprising:

displaying a contour map to a user, the contour map rendered from a union of static contours and dynamic contours.

2. The method of claim 1 wherein the static contours comprise lines derived from a vector source database.

3. The method of claim 1 wherein the dynamic contours comprise lines derived from a parameter source database that enables user-selection of a drawing of lines according to parameters.

4. The method of claim 3 wherein the parameters are selected from the group consisting of map scale, contour interval parameters, and map density.

5. The method of claim 4 wherein the map scale represents a relationship between distance on the contour map and a corresponding distance on the earth'"'"'s surface.

9. The method of claim 1 wherein the static contours comprise lines derived from a vector source database.

6. A method comprising:

rendering a contour map comprising a union of static contours and dynamic contours; and

displaying the contour map on a device to a user.

7. The method of claim 6 wherein device comprises a Global Positioning System (GPS) device.

8. The method of claim 7 wherein the GPS device comprises:

a processor coupled with an input device, memory, and the display; and

the processor coupled with a GPS receiver coupled with a GPS antenna.

10. The method of claim 6 wherein the dynamic contours comprise lines derived from a parameter source database that enables user-selection of a drawing of lines according to parameters.

11. The method of claim 10 wherein the parameters are selected from the group consisting of map scale, contour interval parameters, and map density.

12. The method of claim 11 wherein the map scale represents a relationship between distance on the contour map and a corresponding distance on the earth'"'"'s surface.

13. A Global Positioning System (GPS) device comprising:

a processor coupled with an input device, memory, and the display; and

the processor linked to a GPS receiver coupled with a GPS antenna, the memory including a vector source database, a parameter source database and a contour map process to render a topographic map comprising static contour lines and dynamic contour lines.

14. The GPS device of claim 13 wherein the process further comprises displaying the topographic map to a user.

15. The GPS device of claim 13 wherein the static contours comprise lines derived from the vector source database.

16. The GPS device of claim 13 wherein the dynamic contours comprise lines derived from the parameter source database that enables user-selection of a drawing of lines according to parameters.

17. The GPS device of claim 16 wherein the parameters are selected from the group consisting of map scale, contour interval parameters, and map density.