System and method for synchronizing raster and vector map images
DCFirst Claim
1. A system for automatically annotating a second map when a first map is annotated, the second map being geographically substantially similar to the first map, the system comprising:
- a map display;
a map processing platform in communication with the map display, whenever said map processing platform is adapted to;
receive a user annotation at a first location on the first map expressed by first map coordinates;
convert from the first map coordinates to corresponding geographic coordinates using a georeferencing function of the first map;
convert from the geographic coordinates to corresponding second map coordinates using a georeferencing function of the second map; and
display the user annotation on the second map at the second map coordinates;
a storage platform coupled to the map processing platform; and
a user interaction device coupled to the map processing platform.
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Abstract
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.
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Citations
19 Claims
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1. A system for automatically annotating a second map when a first map is annotated, the second map being geographically substantially similar to the first map, the system comprising:
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a map display;
a map processing platform in communication with the map display, whenever said map processing platform is adapted to;
receive a user annotation at a first location on the first map expressed by first map coordinates;
convert from the first map coordinates to corresponding geographic coordinates using a georeferencing function of the first map;
convert from the geographic coordinates to corresponding second map coordinates using a georeferencing function of the second map; and
display the user annotation on the second map at the second map coordinates;
a storage platform coupled to the map processing platform; and
a user interaction device coupled to the map processing platform. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18)
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16. A method for annotating a second map when a first map is annotated, the second map being geographically substantially similar to the first map, the method comprising;
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detecting an annotation entry on the first map expressed by first map coordinates;
converting from the first map coordinates to corresponding geographic coordinates using a georeferencing function of the first map;
converting from the geographic coordinates to corresponding second map coordinates using a georeferencing function of the second map; and
displaying the annotation entry on the second map at the second map coordinates.
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17. A computer readable medium containing instructions executable by a computer to perform a method for annotating a second map when a first map is annotated, the second map being geographically substantially similar to the first map, the method comprising:
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detecting an annotation entry on the first map expressed by first map coordinates;
converting from the first map coordinates corresponding geographic coordinates using a georeferencing function of the first map;
converting from the geographic coordinates to corresponding second map coordinates using a georeferencing function of the second map; and
displaying the annotation entry on the second map at the second map coordinates.
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19. A method for automatically annotating a second map when a first map is annotated, the second map being geographically substantially similar to the first map, the method comprising:
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receiving an annotation on the first map;
determining a location of the annotation on the first map using a coordinate system of the first map;
converting the location to longitude and latitude using a georeferencing function of the first map;
determining a corresponding location on the second map based on the longitude and latitude using a georeferencing function of the second map; and
displaying the annotation on the second map at the corresponding location.
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Specification