System and method for synchronizing raster and vector map images
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G09G-005/12
G09G-005/14
출원번호
US-0537162
(2000-03-29)
발명자
/ 주소
Howard,John Willard
Scott,Dan Martin
Higgins,Darin Wayne
출원인 / 주소
SourceProse Corporation
대리인 / 주소
Finnegan, Henderson, Farabow, Garrett &
인용정보
피인용 횟수 :
17인용 특허 :
104
초록▼
A system and method for coordinated manipulation of multiple displayed maps, even when the maps use different internal coordinate systems. According to this embodiment, each map image to be displayed is first georeferenced, to provide a set of conversion functions between each map's internal coordi
A system and method for coordinated manipulation of multiple displayed maps, even when the maps use different internal coordinate systems. According to this embodiment, each map image to be displayed is first georeferenced, to provide a set of conversion functions between each map's internal coordinate system and a geographic coordinate system, which is latitude/longitude in the preferred embodiment. After this is done, any point on each map can be referenced using the geographic coordinate set. Since this is the case, the maps can now be manipulated, edited, and annotated in a synchronized manner, by defining the manipulations in terms of the geographic coordinate system, and using the georeferencing functions to translate the manipulation to each map's internal coordinate system.
대표청구항▼
What is claimed is: 1. A method for synchronizing map images using a data processing system, comprising the steps of: displaying a first map image and a second map image; responsive to a user input, changing the first map image to display a modified first map image, wherein the modified first map i
What is claimed is: 1. A method for synchronizing map images using a data processing system, comprising the steps of: displaying a first map image and a second map image; responsive to a user input, changing the first map image to display a modified first map image, wherein the modified first map image displays a new region; determining, in an internal coordinate set, at least one boundary of the modified first map image using a georeferencing function of the first map image; calculating a geographic coordinate set from the internal coordinate set; and changing the second map image to display a modified second map image which corresponds to the modified first map image using a georeferencing function of the second map image, the modified second map image having at least one boundary with the same geographic coordinates of the boundary of the modified first map image, whereby the first map image and second map image are simultaneously changed according to the user input. 2. The method of claim 1, wherein the first map image and the second map image display an identical geographic area. 3. The method of claim 1, wherein the modified first map image and the modified second map image display an identical geographic area. 4. The method of claim 1, further comprising the step of: responsive to a user input, displaying an annotation on the first map image; determining the geographic coordinates corresponding to the annotation on the first map image; and displaying an annotation on the second map image at a point corresponding to the geographic coordinates. 5. The method of claim 1, further comprising the step of converting at least one point in the first map image between an internal coordinate system of the first map image and a geographic coordinate system. 6. The method of claim 1, further comprising the step of converting at least one point in the geographic coordinate system between a geographic coordinate system and an internal coordinate system of the second map image. 7. An apparatus for synchronizing map images using a data processing system, comprising: means for displaying a first map image and a second map image; means for changing the first map image to display a modified first map image, wherein the modified first map image displays a new region; means for determining, in an internal coordinate set, at least one boundary of the modified first map image using a georeferencing function of the first map image; means for calculating a geographic coordinate set from the internal coordinate set; and means for changing the second map image to display a modified second map image which corresponds to the modified first map image using a georeferencing function of the second map image, the modified second map image having at least one boundary with the same geographic coordinate set of the boundary of the modified first map image, whereby the first map image and second map image are simultaneously changed according to the user input. 8. The apparatus of claim 7, wherein the first map image and the second map image display an identical geographic area. 9. The apparatus of claim 7, wherein the modified first map image and the modified second map image display an identical geographic area. 10. The apparatus of claim 7, further comprising: means for displaying an annotation on the first map image; means for determining the geographic coordinate set corresponding to the annotation on the first map image; and means for displaying an annotation on the second map image at a point corresponding to the geographic coordinate set. 11. The apparatus of claim 7, further comprising means for converting at least one point in the first map image between an internal coordinate system of the first map image and a geographic coordinate system. 12. The apparatus of claim 7, further comprising means for converting at least one point in a geographic coordinate system between a geographic coordinate system and an internal coordinate system of the second map image.
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이 특허에 인용된 특허 (104)
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