Patent ID: 9741157
Date: 2017-08-22
CPC Classifications: G06F,G06T

Claim:
1. A method for previewing geometrical operation changes within a three dimensional computer aided design (3D CAD) software program, comprising: operating a computer device to display a user interface of the 3D CAD program; displaying interface controls to add or edit a geometric operation in a sequentially ordered list of geometric operations, wherein applying the geometric operations in ordered sequence generates a design, and wherein the geometric operation being added or edited may come before a last geometric operation in the ordered sequence; displaying interface controls within the user interface to adjust parameters of the geometric operation being added or edited; providing a preview control attached to or included with the interface controls, wherein the preview control allows selection between a before geometric operation display, an after geometric operation display, a blend of before and after display, and a complete preview; and rendering, within the user interface, a model of the design based on the preview control selection while changes are made to parameters of the geometric operation before committing the changes to the design.