Methods and systems for encoding geographic coordinates and features in a portable document format file

• US 7,562,289 B2
• Filed: 06/18/2004
• Issued: 07/14/2009
• Est. Priority Date: 06/18/2003
• Status: Active Grant

• Current Assignee: Terrago Technologies Incorporated (In-Q-Tel)
• Original Assignee: Layton Geo-Science Inc.
• Inventors: Demmy, George G., Bufkin, Michael P., Stewart, D. Alan
• Primary Examiner(s): Vaughn; Gregory J
• Application Number:
  US10/871,964
• Publication Number:
  US 20050034062A1
• Time in Patent Office: 1,852 Days
• Field of Search: 715/200, 715/211, 715/230, 715/232, 715/233, 715/246
• US Class Current: 715/211
• CPC Class Codes: G06F 40/169 Annotation, e.g. comment data or footnotes

Abstract

The invention is methods and systems for encoding geographic coordinates and features in a portable document format file. Various embodiments of the invention permit encoding of a geographic relationship between the coordinate system of a digital source map, and the rendering of that map to a portable document format (PDF) document as well as the information required to transform between the source map coordinate system and the PDF coordinate system. This encoding can be performed by determining the coordinates of the points of a polygon of selected source map data to be rendered to PDF in both PDF coordinates and source coordinates, and by determining a transformation matrix to convert the coordinates from one system to the other, including information regarding the geometric projection of the source coordinate system. Having encoded this data, it can be possible to obtain any location within the rendered PDF file in coordinates of the source coordinate system.

Claims

1. A method of incorporating in at least one electronic graphics file at least one first mapping system in at least one storage medium, comprising:

storing, in the at least one storage medium, mapping system information in the at least one electronic graphics file, the mapping system information comprising projection information and datum information, wherein the projection information comprises mathematical information that transforms coordinates of features on the Earth'"'"'s three-dimensional surface to coordinates on a two-dimensional surface, and wherein the datum information comprises parameters and control points used to accurately define a three-dimensional shape of the Earth;

storing, in the at least one storage medium, geo-registration information in the at least one electronic graphics file, the geo-registration information comprising information used to accurately transform the coordinates from the two-dimensional surface to a coordinate system of the electronic graphics file; and

storing, in the at least one storage medium, neatline information describing geographic boundary information of a region of the coordinate system of the electronic graphics file to which the geo-registration applies;

wherein the mapping system information, the geo-registration information, and the neatline information enables graphics information to be self-contained in the at least one electronic graphics file and to be associated with map information in at least one second mapping system, the at least one second mapping system different from the at least one first mapping system.

2. The method of claim 1, further comprising:

generating at least one annotation associated with non-graphic information;

storing the at least one annotation in the at least one electronic graphics file, where the at least one annotation is associated with at least one geographic position in the at least one electronic graphic file;

receiving at least one selection of the at least one annotation, and displaying the non-graphic information associated with the at least one geographic position.

3. The method of claim 1, wherein the map information comprises at least one user selection of source map data from at least one digital source map.

4. The method of claim 3, wherein the map information comprises:

at least one longitude, at least one latitude, at least one elevation, at least one terrain feature, at least one set of geographic coordinates, at least one geographic feature, at least one road, at least one body of water, at least one mountain, at least one place, at least one land mass, or geographic information, or any combination thereof.

5. The method of claim 3, wherein the at least one digital source map comprises:

at least one digital map, at least one CAD drawing, at least one GIS landbase, at least one raster-based image, at least one database, at least one data storage device, at least one memory, or at least one digital map stored in a data storage device, or any combination thereof.

6. The method of claim 1, further comprising scaling the map information to render corresponding map information in the at least one electronic graphics file, the scaling further comprising:

determining the projection information and the datum information determining at least one size associated with the map information;

rendering the map information to at least one format associated with the at least one electronic graphics file;

determining at least one size associated with the rendered map information in the at least one electronic graphics file; and

determining at least one angle between the map information and the rendered map information in the at least one electronic graphics file;

determining at least one ratio between the size of the map information and the size of the rendered map information in the at least one electronic graphics file; and

based in part on at least the projection information and the datum information, the at least one angle, and the at least one ratio, determining corresponding coordinates in the at least one format associated with the at least one electronic graphics file for at least one portion of the coordinates associated with the map information.

7. The method of claim 1, wherein the map information in the electronic graphics file is geo-registered.

8. The method of claim 1, wherein the at least one electronic graphics file comprises:

at least one Adobe Acrobat.RTM. portable document file, at least one portable document format file, at least one design web format (DWF) file, at least one tagged image file format (TIF) file, at least one scalable vector graphics (SVG) file, at least one Bentley Digital InterPlot (DPR) file, and at least one hypertext markup language (HTML) file, or at least one extensible markup language (XML) file, or any combination thereof.

9. The method of claim 1, wherein the at least one electronic graphics file comprises:

at least one file format viewable by at least one viewer, at least one file format viewable by at least one file reader application program, or at least one file format viewable by at least one application program adapted to display graphics files or any combination thereof.

10. The method of claim 2, wherein generating at least one annotation associated with non-graphic information from the at least one digital source map comprises:

encoding non-graphic information associated with the map information into the at least one electronic graphics file.

11. The method of claim 2, wherein the at least one annotation comprises:

at least one hyperlink to at least one database in communication with at least one network, textual information associated with at least one geographical feature in the at least one electronic graphics file, or textual information associated with at least one object in the at least one electronic graphics file, or any combination thereof.

12. The method of claim 3, wherein the non-graphic information comprises:

information from the at least one digital source map, or information from at least one database, or any combination thereof.

13. The method of claim 1, further comprising:

storing, in at least one storage medium, display preference information, comprising alternate mapping system information;

transforming coordinates of the electronic graphics file to the alternate coordinate system; and

transforming and displaying coordinates of the electronic graphics file to any other coordinate system for which a transformation algorithm is available.

14. A system for incorporating in at least one electronic graphics file at least one first mapping system in at least one storage medium, comprising:

at least one server coupled to at least one network;

at least one user terminal coupled to the at least one network;

at least one application coupled to the at least one server and/or the at least one user terminal, wherein the at least one application is configured for;

storing, in the at least one storage medium, mapping system information in the at least one electronic graphics file, the mapping system information comprising projection information and datum information, wherein the projection information comprises mathematical information that transforms coordinates of features on the Earth'"'"'s three-dimensional surface to coordinates on a two-dimensional surface, and wherein the datum information comprises parameters and control points used to accurately define a three-dimensional shape of the Earth;

storing, in the at least one storage medium, geo-registration information in the at least one electronic graphics file, the geo-registration information comprising information used to accurately transform the coordinates from the two-dimensional surface to a coordinate system of the electronic graphics file; and

storing, in the at least one storage medium, neatline information describing geographic boundary information of a region of the coordinate system of the electronic graphics file to which the geo-registration applies;

wherein the mapping system information, the geo-registration information, and the neatline information enables graphics information to be self-contained in the at least one electronic graphics file and to be associated with map information in at least one second mapping system, the at least one second mapping system different from the at least one first mapping system.

15. The system of claim 14, wherein the map information in at least one digital source map comprises at least one user selection of source map data from at least one digital source map.

16. The system of claim 15, wherein the geographic information comprises:

at least one longitude, at least one latitude, at least one elevation, at least one terrain feature, at least one set of geographic coordinates, at least one geographic feature, at least one road, at least one body of water, at least one mountain, at least one place, at least one land mass, or geographic information, or any combination thereof.

17. The system of claim 15, wherein the digital source map comprises:

at least one digital map, at least one CAD drawing, at least one GIS landbase, at least one raster-based image, at least one database, at least one data storage device, at least one memory, or at least one digital map stored in a data storage device, or any combination thereof.

18. The system of claim 14, wherein the application is further configured for:

scaling the map information to render corresponding map information in the at least one electronic graphics file, the scaling further comprising;

determining the projection information and the datum information determining at least one size associated with the map information;

rendering the map information to at least one format associated with the at least one electronic graphics file;

determining at least one size associated with the rendered map information in the at least one electronic graphics file; and

determining at least one angle between the map information and the rendered map information in the at least one electronic graphics file;

determining at least one ratio between the size of the map information and the size of the rendered map information in the at least one electronic graphics file; and

based in part on at least the projection information and the datum information, the at least one angle, and the at least one ratio, determining corresponding coordinates in the at least one format associated with the at least one electronic graphics file for at least one portion of the coordinates associated with the map information.

19. The system of claim 18, wherein the map information in the at least one electronic graphics file is geo-registered.

20. The system of claim 14, wherein the at least one electronic graphics file comprises:

at least one Adobe Acrobat.RTM. portable document file, at least one portable document format file, at least one design web format (DWF) file, at least one tagged image file format (TIF) file, at least one scalable vector graphics (SVG) file, at least one Bentley Digital InterPlot (DPR) file, and at least one hypertext markup language (HTML) file, or at least one extensible markup language (XML) file, or any combination thereof.

21. The system of claim 14, wherein the at least one electronic graphics file comprises:

at least one file format viewable by at least one viewer, at least one file format viewable by at least one file reader application program, or at least one file format viewable by at least one application program adapted to display graphics files or any combination thereof.

22. The system of claim 14, further comprising generating an annotation for the map information in the at least one electronic graphics file, the generating comprising:

encoding non-graphic information associated with the map information into the at least one electronic graphics file.

23. The system of claim 14, wherein the at least one annotation comprises:

at least one hyperlink to at least one database in communication with at least one network, textual information associated with at least one geographical feature in the at least one electronic graphics file, or textual information associated with at least one object in the at least one electronic graphics file, or any combination thereof.

24. The system of claim 14, wherein the application is further configured for:

storing, in at least one storage medium, display preference information, comprising alternate mapping system information;

transforming coordinates of the electronic graphics file to the alternate coordinate system; and

transforming and displaying coordinates of the electronic graphics file to any other coordinate system for which a transformation algorithm is available.