Integrating Constraints and Direct Manipulation
In this paper, we present techniques for integrating constraint
and direct manipulation approaches to geometric modeling.
Direct manipulation positioning techniques are augmented
to provide the option of making the relationships they establish
persistent. Differential constraint techniques are used to
maintain these relationships during subsequent editing. Issues
in displaying and editing constraints are also addressed.
By integrating constraints with direct manipulation, it is possible
to build systems that provide the power of explicit representation
of geometric relationships and the propertieswhich
make direct manipulation so attractive.
BibTex references
@InProceedings{Gle92, author = "Gleicher, Michael", title = "Integrating Constraints and Direct Manipulation", booktitle = "1992 Symposium on Interactive 3D Graphics", pages = "171--174", month = "mar", year = "1992", url = "http://graphics.cs.wisc.edu/Papers/1992/Gle92" }