Modifying a graphics display image

Details Modifying a graphics display image Modifying a graphics display image

G - Physics

09

G

375/12

G09G 5/00 (2006.01) G06T 17/40 (2006.01)

Patent

CA 2037295

A graphics display image is displayed on a display. The graphics display image is formed by a plurality of graphics display image components, at least some of which have to be edited. The graphics display image components may be generated from data obtained e.g. from the optical reading of a hard copy of a map, circuit diagram, or design drawing by a suitable optical reader. The graphics display image components which are to be edited are displayed with a different visual appearance from any components which do not have to be edited, e.g. by highlighting the components to be edited. As the editing of each of the components is completed, its visual appearance is changed, e.g. the highlighting is cancelled, so the operator has an immediate visual indication of the components which have not yet been edited. In this way, complete editing can be ensured. Different editing operations are possible including creating a cursor corresponding to the component to be edited, adjusting that cursor to correspond to the location, size and orientation of the component to be edited, and replacing the component with the cursor image.

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