Method of map scale conversion of features for a display
First Claim
1. A method of controlling a navigation system comprising:
- inquiring if the navigation system is displaying a road map in a first map scale on a display;
concluding that the navigation system is displaying the road map in the first map scale on the display;
inquiring if a scrolling feature (panning feature) was used prior to concluding that the navigation system is displaying the road map in the first map scale to pan the road map in the first map scale on the display to a specific scrolled point;
concluding that the scrolling feature was used prior to concluding that the navigation system is displaying the road map in the first map scale to pan the road map in the first map scale on the display to a specific scrolled point;
calculating a detail road display area based on the specific scrolled point of the display;
loading detailed road link data in a second map scale greater than the first map scale from memory of the navigation system, the detailed road link data corresponding to the calculated detail road display area;
determining if the detail road link data will fit on the display;
converting the detailed road link data from the second map scale to the first map scale to create converted detail road link data only after determining that the converted detail road link data will fit on the display; and
displaying the converted detail road link data in the first map scale on the display together with the road map in the first map scale when it is determined that the detailed road link data will fit on the display.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of controlling a vehicle navigation system may entail inquiring if the navigation system is displaying a road map in a first map scale on a display, inquiring if a scrolling feature was used to pan the road map in the first map scale on the display to a specific scrolled point, concluding that the scrolling feature was used, calculating a detail road display area based on the specific scrolled point of the display; loading detailed road link data in a second map scale from memory of the navigation system, the detailed road link data corresponding in actual geographic area to the detail road display area, converting the detailed road link data from the second map scale to the first map scale to create converted detail road link data, and displaying the converted detail road link data together with the road map in the first map scale.
11 Citations
17 Claims
-
1. A method of controlling a navigation system comprising:
-
inquiring if the navigation system is displaying a road map in a first map scale on a display; concluding that the navigation system is displaying the road map in the first map scale on the display; inquiring if a scrolling feature (panning feature) was used prior to concluding that the navigation system is displaying the road map in the first map scale to pan the road map in the first map scale on the display to a specific scrolled point; concluding that the scrolling feature was used prior to concluding that the navigation system is displaying the road map in the first map scale to pan the road map in the first map scale on the display to a specific scrolled point; calculating a detail road display area based on the specific scrolled point of the display; loading detailed road link data in a second map scale greater than the first map scale from memory of the navigation system, the detailed road link data corresponding to the calculated detail road display area; determining if the detail road link data will fit on the display; converting the detailed road link data from the second map scale to the first map scale to create converted detail road link data only after determining that the converted detail road link data will fit on the display; and displaying the converted detail road link data in the first map scale on the display together with the road map in the first map scale when it is determined that the detailed road link data will fit on the display. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method of controlling a navigation system comprising:
-
inquiring if the navigation system is displaying a first road map in a first map scale on a display in a first level of detail; concluding that the navigation system is displaying the road map in the first map scale on the display; inquiring whether a second road map in a second map scale greater than the first map scale exists in a memory; concluding that the second road map in the second map scale exists in the memory; inquiring if a scrolling feature was used prior to concluding that the navigation system is displaying the road map in the first map scale to pan the road map in the first map scale on the display to a specific scrolled point; concluding that the scrolling feature was used prior to concluding that the navigation system is displaying the road map in the first map scale to pan the road map in the first map scale on the display to a specific scrolled point; calculating a detail road display area based on the specific scrolled point of the display; loading detailed road link data in the second map scale from memory of the navigation system, the detailed road link data corresponding to the calculated detail road display area; determining if the detail road link data will fit on the display; converting the detailed road link data from the second map scale to the first map scale to create converted detail road link data only after determining that the converted detail road link data will fit on the display; and displaying the converted detail road link data in the first map scale on the display together with the road map in the first map scale when it is determined that the detailed road link data will fit on the display. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A method of controlling a navigation system comprising:
-
inquiring if the navigation system is displaying a road map in a first map scale on a display; concluding that the navigation system is displaying the road map in the first map scale on the display; inquiring if a scrolling feature was used prior to concluding that the navigation system is displaying the road map in the first map scale to pan the road map in the first map scale on the display to a specific scrolled point; concluding that the scrolling feature was used prior to concluding that the navigation system is displaying the road map in the first map scale to pan the road map in the first map scale on the display to a specific scrolled point; calculating a detail road display area based on the specific scrolled point of the display; loading detailed road link data in a second map scale greater than the first map scale from memory of the navigation system, the detailed road link data corresponding to the detail road display area; determining if the detailed road link data will fit on the display; converting the detailed road link data from the second map scale to the first map scale to create converted detail road link data only after determining that the detailed road link data will fit on the display; inquiring, after scrolling, if three seconds have passed and no navigation system operations have been performed; and displaying the converted detail road link data in the first map scale on the display together with the road map in the first map scale when it is determined that the detailed road link data will fit on the display. - View Dependent Claims (14, 15, 16, 17)
-
Specification