Patent ID: 7523396
Filing Date: 2009-04-21
Classification: G06T,Y10S

Abstract:
1. A method for manipulating a drawing surface in a CAD/GIS computer application, comprising: displaying a triangulated irregular network (TIN) drawing surface in a CAD/GIS application; performing a surface edit operation on the TIN drawing surface, wherein the surface edit operation modifies a property of the TIN drawing surface; persistently storing, in persistent storage, the surface edit operation as an atomic property in a list of surface edit operations; persistently storing, in persistent storage, the list of surface edit operations; and displaying the list of surface edit operations in a graphical user interface, wherein each surface edit operation may be independently toggled on/off in the graphical user interface and such toggling is reflected in the CAD/GIS application by displaying an effect of executing the surface edit operation if toggled on and displaying the TIN drawing surface without execution of the surface edit operation if toggled off, and wherein the surface edit operation is displayed in the list and maintained in persistent storage both when the surface edit operation is toggled on and when the surface edit operation is toggled off.