Systems and methods of updating graphical objects

摘要

Systems and methods of updating graphical objects are disclosed. The methods and systems receive polygonal data which describe discrete points on an object. A control mesh and a smoothed version of the control mesh are simultaneously displayed. When the control mesh is edited, the smoothed version is automatically updated by smoothing only a portion of the edited control mesh to generate a smoothed section, and replacing a portion of the smoothed version with at least a selected portion of the smoothed section.

主权项

1. A computerized method of producing an electronic geometric model, the method comprising:
with the computer, accessing electronic data, the data comprising polygonal data defining a control mesh of polygonal data points; with the computer, performing a smoothing algorithm on the control mesh to generate a smoothed mesh; with the computer, displaying the smoothed mesh; with the computer and in response to an indication from a user, wherein the indication indicates that a portion of the control mesh is to be modified:
determining a portion of the control mesh for smoothing, the determined portion being a continuous section of the control mesh less than the entire control mesh,performing a smoothing algorithm on the determined portion to generate a smoothed section, wherein the smoothing algorithm is not performed on the control mesh outside the determined portion,selecting a portion of the smoothed section, the selected portion being a continuous section of the smoothed section less than the entire smoothed section, andreplacing a portion of the smoothed mesh with the selected portion of the smoothed section; and redisplaying the smoothed mesh.