Computer Aided Geometric Design - Special issue: Topics in CAGD
Direct least-squares fitting of algebraic surfaces
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Exploration and virtual camera control in virtual three dimensional environments
I3D '90 Proceedings of the 1990 symposium on Interactive 3D graphics
A mark-based interaction paradigm for free-hand drawing
UIST '94 Proceedings of the 7th annual ACM symposium on User interface software and technology
SKETCH: an interface for sketching 3D scenes
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
SIGGRAPH '96 ACM SIGGRAPH 96 Visual Proceedings: The art and interdisciplinary programs of SIGGRAPH '96
Toolglass and magic lenses: the see-through interface
CHI '94 Conference Companion on Human Factors in Computing Systems
Wires: a geometric deformation technique
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Path drawing for 3D walkthrough
Proceedings of the 11th annual ACM symposium on User interface software and technology
An interface for sketching 3D curves
I3D '99 Proceedings of the 1999 symposium on Interactive 3D graphics
Exploring 3D navigation: combining speed-coupled flying with orbiting
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Silk, Java and object-oriented simulation
Proceedings of the 32nd conference on Winter simulation
StyleCam: interactive stylized 3D navigation using integrated spatial & temporal controls
Proceedings of the 15th annual ACM symposium on User interface software and technology
An interface for creating and manipulating curves using a high degree-of-freedom curve input device
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Euler Spiral for Shape Completion
International Journal of Computer Vision - Special Issue on Computational Vision at Brown University
CGI '01 Proceedings of the International Conference on Computer Graphics
A suggestive interface for image guided 3D sketching
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Ryan: rendering your animation nonlinearly projected
Proceedings of the 3rd international symposium on Non-photorealistic animation and rendering
HoverCam: interactive 3D navigation for proximal object inspection
Proceedings of the 2005 symposium on Interactive 3D graphics and games
Meshless deformations based on shape matching
ACM SIGGRAPH 2005 Papers
Modeling plant structures using concept sketches
Proceedings of the 4th international symposium on Non-photorealistic animation and rendering
Keepin' it real: pushing the desktop metaphor with physics, piles and the pen
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Fairing point sets using curvature
Computer-Aided Design
Free-Form Sketching of Self-Occluding Objects
IEEE Computer Graphics and Applications
FiberMesh: designing freeform surfaces with 3D curves
ACM SIGGRAPH 2007 papers
Teddy: a sketching interface for 3D freeform design
ACM SIGGRAPH 2007 courses
Motion doodles: an interface for sketching character motion
ACM SIGGRAPH 2007 courses
ShapeShop: sketch-based solid modeling with BlobTrees
ACM SIGGRAPH 2007 courses
Bubble clusters: an interface for manipulating spatial aggregation of graphical objects
Proceedings of the 20th annual ACM symposium on User interface software and technology
K-sketch: a 'kinetic' sketch pad for novice animators
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Interactive procedural street modeling
ACM SIGGRAPH 2008 papers
Technical section: A controlled clothoid spline
Computers and Graphics
Epipolar methods for multi-view sketching
SBM'04 Proceedings of the First Eurographics conference on Sketch-Based Interfaces and Modeling
Sketching piecewise clothoid curves
SBM'08 Proceedings of the Fifth Eurographics conference on Sketch-Based Interfaces and Modeling
Integrating procedural generation and manual editing of virtual worlds
Proceedings of the 2010 Workshop on Procedural Content Generation in Games
Proceedings of the 14th ACM Symposium on Solid and Physical Modeling
A sketch-based system for highway design
Proceedings of the Eighth Eurographics Symposium on Sketch-Based Interfaces and Modeling
Floating tangents for approximating spatial curves with G1 piecewise helices
Computer Aided Geometric Design
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We present Drive, a system for the conceptual layout of 3D path networks. Our sketch-based interface allows users to efficiently author path layouts with minimal instruction. Our system incorporates some new and noteworthy components. We present the break-out lens, a novel widget for interactive graphics, inspired by break-out views used in engineering visualization. We also make three contributions specific to path curve design: First, we extend our previous work to fit aesthetic paths to sketch strokes with constraints, using piecewise clothoid curves. Second, we determine the height of paths above the terrain using a constraint optimization formulation of the occlusion relationships between sketched strokes. Finally, we illustrate examples of terrain sensitive path construction in the context of road design: automatically removing foliage, building bridges and tunnels across topographic features and constructing road signs appropriate to the sketched paths.