Patent ID: 7847677

Claim:
A computer-implemented method, embodied in at least one computer system, for providing auditory feedback to a visually impaired user when defining a visual model, comprising: detecting a visual overlap between at least two visual objects in a visual model being created by said user, wherein said detecting said visual overlap between said at least two visual objects includes detecting when a first one of said at least two visual objects is placed by said user such that at least a portion of at least a second one of said at least two visual objects is visually obscured by at least a portion of said first one of said at least two visual objects; and responsive to said detecting of said overlap, automatically causing a speaker contained in said computer system to output an audible warning indicating detection of said visual overlap between said at least two visual objects, wherein said causing said audible warning includes creating an invisible object within a user interface containing said two visual objects to cause the auditory warning to be output, wherein said invisible object contains a representation of said auditory warning, wherein said invisible object is created in front of said first one of said at least two visual objects within a logical ordering of all visual objects in said visual model.