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Development of an Intuitive 3D Sketching Tool. B. de Vries, A.J. Jessurun, M. Engeli. 3D Modeling Support: Current Status. Application : Emphasis on Drawing and Presentation, not on Design Technology (focus of this presentation): Geometrical Representation Interface.
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Development of an Intuitive 3D Sketching Tool B. de Vries, A.J. Jessurun, M. Engeli
3D Modeling Support:Current Status Application: Emphasis on Drawing and Presentation, not on Design Technology (focus of this presentation): • Geometrical Representation • Interface
Geometrical Representation • Stack of operations on primitives (e.g. stretch, twist) • Parameterized objects (e.g. length, width) • Representation consistency vs. design evolution
Interface • Unaware of geometrical representation • 6 DOF input devices are troublesome • New technologies: Touch sensitive LCD screen, Voice recognition • Performing unreal operations is most interesting • New metaphor instead of Mouse & Windows
DDDoolz objectives • Minimal set of commands • Easy creation and manipulation of masses and spaces • Easy visual evaluation of the created model • Claying metaphor • LCD sketchpad • Integration with design database
Basic Principle:Face Orientation Method Drag and Copy
System Features • Sketch • Straight • Array • Curve • Navigate • Walk • Fly • Orientate • Move • Delete • Rotate model • Import 3DS, Export to Autocad
Implementation • World Up: Geometrical primitives, scripting, rendering • Sketch device: Wacom sketchpad or Mouse • Navigation device: Trackball or Mouse • Free distribution of WUP player
Experiences First Years’ CAAD course: • No learning Curve and Time • Performance limits Design model Architectural office: • Boxes used as Spaces • Quest for Box dimensions adjustment
Improvements • Group Boxes into Building Elements • Boolean operations & Clipping Box • Texture mapping • Adjustable Box dimensions
How to get www.ds.arch.tue.nl/Research/DDDoolz