401 search results - page 46 / 81 » Geometry of Isophote Curves |
CGA
2004
13 years 8 months ago
2004
Haptic devices, such as the PHANTOM [1] (SensAble Technologies, Inc.) can be used to develop object interactions where various interaction states and state transitions are impleme...
COMPGEOM
2006
ACM
14 years 2 months ago
2006
ACM
We construct a class of envelope surfaces in Rd , more precisely envelopes of balls. An envelope surface is a closed C1 (tangent continuous) manifold wrapping tightly around the u...
COMPGEOM
2004
ACM
14 years 17 days ago
2004
ACM
We introduce a new approach to the problem of collision detection between a rotating milling-cutter of an NC-machine and a model of a solid workpiece, as the rotating cutter conti...
UIST
2004
ACM
14 years 2 months ago
2004
ACM
This paper presents tangible interaction techniques for fine-tuning one-to-one scale NURBS curves on a large display for automotive design. We developed a new graspable handle wit...
SIGGRAPH
1999
ACM
14 years 1 months ago
1999
ACM
Artists and illustrators can evoke the complexity of fur or vegetation with relatively few well-placed strokes. We present an algorithm that uses strokes to render 3D computer gra...