SPECIFYING 3D POINTS IN 3D GRAPHIC DISPLAYS

The invention relates to the correlation of two-dimensional displayed points of an axonometric projection with corresponding three-dimensional points of the projected shapes. A point on a display screen surface is selected and the screen coordinates of the points of the three-dimensional shape are f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JOHN KARL ALSTAD, MARTIN CHRISTOPHER LASCELLES, JEFFREY ALAN HICKE
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PHYSICS
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Beschreibung
Zusammenfassung:	The invention relates to the correlation of two-dimensional displayed points of an axonometric projection with corresponding three-dimensional points of the projected shapes. A point on a display screen surface is selected and the screen coordinates of the points of the three-dimensional shape are found by converting successive points of the shape to two-dimensional screen equivalents. Comparing the converted coordinates to those of the selected point identifies the shape point corresponding to the selected shape.