Terrain and culture generation system and method

• US 5,359,526 A
• Filed: 02/04/1993
• Issued: 10/25/1994
• Est. Priority Date: 02/04/1993
• Status: Expired due to Term

• Current Assignee: Hughes Training, Inc., L-3 Communications Corporation (L3Harris Technologies, Inc.)
• Original Assignee: Hughes Training, Inc.
• Inventors: Nguyen, Joe, Pafford, Judith G., Whittington, Reed C.
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): Day, Julie D.
• Application Number:
  US08/013,461
• Time in Patent Office: 628 Days
• Field of Search: 364/443, 364/449, 364/456, 340/990, 340/995, 342/64
• US Class Current: 701/200
• CPC Class Codes: G06T 17/05 Geographic models
• CPC Class Codes: G09B 19/165 Control of aircraft
• CPC Class Codes: G09B 9/301 by computer-processed or -generated image

Abstract

A method and system (10) for generating a reconfigurable terrain and culture database of a simulated environment. Terrain and culture data are extracted from at least one of a plurality of digital data sources (14), and the extracted data is transformed into a predetermined central database format (22) from which the extracted data may be edited (24) and formatted (28) for a particular imaging system. The terrain and culture data are not merged until formatting in order to enable rapid reskinning of the terrain or the addition of further culture detail.

Claims

1. A method for generating a reconfigurable terrain and culture database of a simulated environment, comprising the steps of:

providing a parser for each digital data source to be read;

extracting terrain and culture data from at least one of a plurality of digital data sources using the parser for said data source;

transforming the extracted data into a predetermined central database format from which the extracted data may be edited, regardless of the particular digital data source used to receive terrain and culture data;

wherein said transformation step includes the steps of;

building cross-reference tables for surface descriptions, feature descriptions and model footprints from said extracted data;

converting the geometry of said extracted data to a standard coordinate system to facilitate data base editing; and

partitioning a geographic area defined by said extracted data into area blocks of a predetermined size and storing all of the data associated with each of said area blocks into a file associated with said area blocks.

2. The method according to claim 1, further including the step of editing said central database, and formatting said edited central database for one of a plurality of imaging systems.

3. The method according to claim 2, wherein terrain elevation and culture data are not merged until formatting to enable a reskinning of the terrain.

4. A reconfigurable terrain and culture database generation system, comprising:

means for extracting terrain and culture data of a simulated environment from at least one of a plurality of digital data sources;

means for transforming the extracted terrain and culture data into a predetermined central database format which provides separate database structures for storing said terrain data and said culture data, as well as object models and texture;

means for editing the terrain and culture data stored in said central database format; and

means for formatting the terrain and culture data in said edited central database for one of a plurality of imaging systems, said terrain and culture data being merged by said formatting means to enable reskinning of the terrain.