Browse Prior Art Database

Method for Enabling Interactive Graphical Querying of Continuous Simulation Results

IP.com Disclosure Number: IPCOM000117989D
Original Publication Date: 1996-Aug-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Bala, GP: AUTHOR [+2]

Abstract

Disclosed is a method that enables the interactive graphical inquiry into simulation results represented by continuous functions on the problem domain. The novelty of the approach is the elimination of the need for preassigned locations on the problem domain, by which the scope of the queries are limited. Instead, purely geometrical techniques are employed to locate a graphically requested point on the problem domain and to extract the solution data at said point.

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This is the abbreviated version, containing approximately 56% of the total text.

Method for Enabling Interactive Graphical Querying of Continuous
Simulation Results

      Disclosed is a method that enables the interactive graphical
inquiry into simulation results represented by continuous functions
on the problem domain.  The novelty of the approach is the
elimination of the need for preassigned locations on the problem
domain, by which the scope of the queries are limited.  Instead,
purely geometrical techniques are employed to locate a graphically
requested point on the  problem domain and to extract the solution
data at said point.

      When an analyst wishes to query the solution at a point in a
three-dimensional problem domain (hereafter referred to as the
geometry) using an interactive graphics environment, the location of
the point is indicated by moving a graphical locator on the viewing
plane to the projection of the desired point on the viewing plane and
signifying the selection of the point (through such a standard action
as a "mouse click").  Once the point has been selected, the following
best-mode steps of the method are employed to acquire simulation
information at the point:
  1.  A Line-Of-Sight (LOS) ray is determined as the ray
       originating at the selected point and extending
       perpendicularly into the imaginary half-space on the
       side of the viewing plane away from the viewer (where the
       image of the geometry appears).  This determination is
       done in "viewing...