发明名称 |
Display method and apparatus for navigation system |
摘要 |
A display method and apparatus for navigation system enables a user to quickly view zoomed images by using a radial scaling method. The display method includes the steps of: reading out map data from a map data storage for displaying a map image on a screen of a navigation system; converting the map data to screen coordinates so that an intended map image is displayed on a correct position on the screen; zooming the map image by enlarging or shrinking distances of points on the map image relative to a center of the screen; and storing the map data converted to the screen coordinates in a memory for use with a further operation of changing the map scale.
|
申请公布号 |
US2005046615(A1) |
申请公布日期 |
2005.03.03 |
申请号 |
US20030652758 |
申请日期 |
2003.08.29 |
申请人 |
HAN MAUNG W. |
发明人 |
HAN MAUNG W. |
分类号 |
G01C21/34;G01C21/36;G01S1/00;G01S19/48;G08G1/123;G09B29/10;H04Q7/00;(IPC1-7):G01S1/00 |
主分类号 |
G01C21/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|