Patents by Inventor John D. Grace

John D. Grace has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for creating irregular three-dimensional polygonal volume models in a three-dimensional geographic information system
    Patent number: 6839632
    Abstract: Methods, and models therefrom, to construct a 3-D polygonal model of a 3-D irregular volume within a GIS platform that include introducing data relating to the volume; estimating at least one 2-D polygon representing the volume's lateral boundary, estimating irregular surfaces representing the volume's top and bottom; clipping the estimated surfaces with the estimated 2-D polygon; constructing multipatches of a network of triangular panels or a grid of regularly spaced polylineZs; and joining the attributes to the model.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: January 4, 2005
    Assignee: Earth Science Associates, Inc.
    Inventor: John D. Grace
  • Method and system for creating irregular three-dimensional polygonal volume models in a three-dimensional geographic information system
    Publication number: 20040054475
    Abstract: Methods, and models therefrom, to construct a 3-D polygonal model of a 3-D irregular volume within a GIS platform that include introducing data relating to the volume; estimating at least one 2-D polygon representing the volume's lateral boundary, estimating irregular surfaces representing the volume's top and bottom; clipping the estimated surfaces with the estimated 2-D polygon; constructing multipatches of a network of triangular panels or a grid of regularly spaced polylineZs; and joining the attributes to the model.
    Type: Application
    Filed: September 12, 2003
    Publication date: March 18, 2004
    Applicant: Earth Science Associates, Inc.
    Inventor: John D. Grace
  • Method and system for creating irregular three-dimensional polygonal volume models in a three-dimensional geographic information system
    Patent number: 6694264
    Abstract: Methods, and models therefrom, to construct a 3-D polygonal model of a 3-D irregular volume within a GIS platform that include introducing data relating to the volume; estimating at least one 2-D polygon representing the volume's lateral boundary, estimating irregular surfaces representing the volume's top and bottom; clipping the estimated surfaces with the estimated 2-D polygon; constructing multipatches of a network of triangular panels or a grid of regularly spaced polylineZs; and joining the attributes to the model.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: February 17, 2004
    Assignee: Earth Science Associates, Inc.
    Inventor: John D. Grace
  • Method and system for creating irregular three-dimensional polygonal volume models in a three-dimensional geographic information system
    Publication number: 20030112235
    Abstract: A method to construct a solid three-dimensional polygonal model of a three-dimensional irregular volume within a GIS platform comprising of: (1) introducing desired data including control points and attributes relating to the three-dimensional irregular volume into the GIS platform; (2) estimating at least one two-dimensional polygon representing a lateral boundary of the three-dimensional irregular volume based upon values of variable of interest at the control points; (3) estimating irregular surfaces representing top and bottom of the three-dimensional irregular volume by interpolating grids of depth values from the control points for the top and bottom surfaces of the three-dimensional irregular volume; (4) clipping the estimated irregular surfaces with the estimated at least one two-dimensional boundary polygon; (5) constructing multipatches of a network of triangular panels representing top surface, bottom surface, and sides of the three-dimensional irregular volume to produce a solid three-dimensional
    Type: Application
    Filed: December 18, 2002
    Publication date: June 19, 2003
    Applicant: Earth Science Associates, Inc.
    Inventor: John D. Grace