| 摘要 |
<p>An aspect of the present invention is to provide a Virtual light table that is an implied or virtual representation of two plans overlaid onto one another. Embodiments of the invention allow the output to be configured and or filtered to allow various display modes and image combinations, and since the comparison is computer generated all differences noted will be output as specified and the user can select an appropriate display mode to view what they wish to see. Another aspect of the invention is that users can select plan files to compare at any stage of the drawing as they wish, and they can do batch compare or select regions of interest on each plan and conform (scale and translate) one image to be overlaid as needed onto another. Preferred embodiments allow for many annotation applications to be used to markup a comparison image giving users the ability to choose the best application for their needs. Another aspect of the invention is that the comparison may be displayed on a computer monitor so there is no need for prints and the tune and expense involved creating them.</p> |
