Drawing with Constraints
The success of constraint-based approaches to drawing has been limited by difficulty in
creating constraints, solving them, and presenting them to users. In this paper, we discuss
techniques used in the Briar drawing program to address all of these issues. Briar’s approach
separates the problemof initially establishing constraints from that ofmaintaining them during
subsequent editing. We describe how non-constraint-based drawing tools can be augmented to
specify constraints in addition to positions. These constraints are then maintained as the user
drags the model, allowing the user to explore configurations consistent with the constraints.
Visual methods are provided for displaying and editing the constraints.
Images and movies
BibTex references
@Article{GW94, author = "Gleicher, Michael and Witkin, Andrew", title = "Drawing with Constraints", journal = "Visual Computer", number = "1", volume = "11", pages = "39--51", year = "1994", url = "http://graphics.cs.wisc.edu/Papers/1994/GW94" }