Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1997-03-26
1999-12-07
Luu, Matthew
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
345355, 345419, G06F 3033
Patent
active
059991658
ABSTRACT:
A three-dimensional display system for displaying a three-dimensional object on a two-dimensional screen, wherein three semi-transparent X, Y and Z cursor planes are moved on the display screen in consistency with a moving operation of a pointing device. A cursor symbol is displayed at a cross point of the cursor plane. When an object symbol is present in either front or rear of the cursor plane, its luminance and display color are changed so as to recognize relationship between the object symbol and the cursor plane visually. The object symbol is projected on the Y cursor plane to show a Y projection object symbol, enabling to recognition of the altitude of the object symbol. The object symbol is further projected on the Z cursor plane and a reference plane to obtain a Z projection object symbol and a reference projection object symbol, resulting in recognizing the planar position of the object symbol. "The object symbol is further projected on the X and Y cursor planes." As a result, the position of the three-dimensional object displayed in the three-dimensional manner and the positional relationship between the object symbol and the cursor symbol can be exactly recognized.
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Luu Matthew
NEC Corporation
Piziali Jeff
LandOfFree
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