Search Results - "Hoffmann, Christoph M."

Offset approximation of polygons on an ellipsoid by Ahn, Young Joon, Hoffmann, Christoph M.

“…We present an approximation method for offset curves of polygons on an oblate ellipsoid using implicit algebraic surfaces. The polygon on the ellipsoid is…”
Get full text

A note on circle packing by Ahn, Young Joon, Hoffmann, Christoph M, Rosen, Paul

“…The problem of packing circles into a domain of prescribed topology is considered. The circles need not have equal radii. The Collins-Stephenson algorithm…”
Get full text

The General Pinhole Camera: Effective and Efficient Nonuniform Sampling for Visualization by Popescu, Voicu, Rosen, Paul, Arns, Laura, Tricoche, Xavier, Wyman, Chris, Hoffmann, Christoph M

“…We introduce the general pinhole camera (GPC), defined by a center of projection (i.e., the pinhole), an image plane, and a set of sampling locations in the…”
Get full text

Approximate convolution with pairs of cubic Bézier LN curves by Ahn, Young Joon, Hoffmann, Christoph M.

“…In this paper we present an approximation method for the convolution of two planar curves using pairs of compatible cubic Bézier curves with linear normals…”
Get full text

A Brief on Constraint Solving by Hoffmann, Christoph M., Joan-Arinyo, Robert

“…We survey the current state of the art in geometric constraint solving. 2D constraint solving is considered, and different approaches are characterized…”
Get full text

A generalized Malfatti problem by Chiang, Ching-Shoei, Hoffmann, Christoph M., Rosen, Paul

“…Malfattiʼs problem, first published in 1803, is commonly understood to ask fitting three circles into a given triangle such that they are tangent to each…”
Get full text

Engineering Perspective of the Collapse of WTC-I by Irfanoglu, Ayhan, Hoffmann, Christoph M

“…The writers report on a simulation study of the performance of the North Tower (WTC-I) of the World Trade Center complex during the impact of American Airlines…”
Get full text

Making constraint solvers more usable: overconstraint problem by Hoffmann, Christoph M., Sitharam, Meera, Yuan, Bo

“…The richness and expressive power of geometric constraints causes unintended ambiguities and inconsistencies during their solution or realization. For example,…”
Get full text

On user-defined features by Hoffmann, Christoph M, Joan-Arinyo, Robert

“…Feature-based design is becoming one of the fundamental design paradigms of CAD systems. In this paradigm, the basic unit is a feature and parts are…”
Get full text

Solving spatial basic geometric constraint configurations with locus intersection by Gao, Xiao-Shan, Hoffmann, Christoph M., Yang, Wei-Qiang

“…A basic idea of geometric constraint solving (GCS) is to decompose the constraint problem into smaller ones according to some basic configurations. In this…”
Get full text

Generic naming in generative, constraint-based design by Capoyleas, Vasilis, Chen, Xiangping, M Hoffmann, Christoph

“…In generative, constraint-based design, users graphically select shape elements of design instances in order to specify shape operations that have generic…”
Get full text

Variable-radius circles of cluster merging in geometric constraints: I. Translational clusters by Hoffmann, Christoph M, Chiang, Ching-Shoei

“…Variable-radius circles are common constructs in planar constraint solving and are usually not handled fully by algebraic constraint solvers. We give a…”
Get full text

Analysis of orientations of collagen fibers by novel fiber-tracking software by Wu, Jun, Rajwa, Bartłomiej, Filmer, David L, Hoffmann, Christoph M, Yuan, Bo, Chiang, Ching-Shoei, Sturgis, Jennie, Robinson, J Paul

“…Recent evidence supports the notion that biological functions of extracellular matrix (ECM) are highly correlated to not only its composition but also its…”
Get more information

Variable-radius circles in cluster merging: II. Rotational clusters by Hoffmann, Christoph M., Chiang, Ching-Shoei

“…Variable-radius circles are common constructs in planar constraint solving. We give a complete treatment of variable-radius circles when such circles must be…”
Get full text

On editability of feature-based design by Chen, Xiangping, Hoffmann, Christoph M

“…Techniques needed for editing generative designs are presented. When a feature is edited, all features attached later must be re-evaluated to satisfy the…”
Get full text

A road map to solid modeling by Hoffmann, C.M., Rossignac, J.R.

“…The objective of solid modeling is to represent, manipulate and reason about the 3D shape of solid physical objects by computer. Such representations should be…”
Get full text

Towards feature attachment by Chen, Xiangping, Hoffmann, Christoph M

“…Feature attachment in generative, constraint-based cad systems requires unambiguous semantics that are easy for users to grasp and can reasonably be…”
Get full text

Adaptive polygonization of geometrically constrained surfaces by Chuang, Jung-Hong, Hoffmann, Christoph M., Ko, Kun-Ming, Hwang, Wei-Chung

“…n-dimensional space, where n>3. This definition can be used for given surfaces that are implicit or parametric. This paper presents a robust, adaptive…”
Get full text

Pose space parameterization and style transfer of skin deformation by Kim, Jong-Hyuk, Choi, Jung-Ju, Hoffmann, Christoph M.

“…ABSTRACT We present a technique to parameterize skin deformation by skeletal motion and to transfer the deformation style from one character to another. We…”
Get full text

Hardware Assistance for Constrained Circle Constructions I: Sequential Problems by Chiang, Ching-Shoei, Hoffmann, Christoph M., Rosen, Paul

“…In geometric constraint solving, constructing circles with indeterminate radius is an important sub problem. Such constructions are both sequential, meaning…”
Get full text