Clipping B cells

Metamorphosis Using B Ezier Clipping

Recently, in the eld of entertainment, the metamorphosis of 2-D images, as it is an attractive technique, has come to be used in movies and television commercials. This technique is referred to as morphing. In the proposed method, B ezier or B-spline nets are overlapped onto digital images, and their deformation is performed by moving the control points of the nets on the images. The method pro...

Hidden Curve Elimination of Trimmed Surfaces Using B ezier Clipping

Shaded display is popular for displaying curved surfaces because of the realistic appearance of the images produced. In the eld of computer aided geometric design, however, line drawings are more commonly used. For accurate evaluation of the curved surfaces in these designs, the conventional method of approximating curved surfaces with polygons is insu cient. In this paper we will present a met...

Clipping along.

In this issue of JMB, Rajendar and Lucius report a study of themechanism of polypeptide translocation catalyzed by the Escherichia coli ClpA enzyme—the motor component of the ATP-dependent protease, ClpAP. ATP-dependent proteases play important roles in protein turnover and share a common architecture across organisms. ClpAP is composed of the hexameric AAA+ motor protein ClpA and the tetradeca...

Clipping Wings

Accelerating Polygon Clipping

Polygon clipping is a central part of image generation and image visualization systems. In spite of its algorithmic simplicity it consumes a considerable amount of hardware or software resources. Polygon clipping performance is dominated by two processes: intersection calculations and data transfers. The paper analyzes the prevalent Sutherland-Hodgman algorithm for polygon clipping and identifi...