We present QuickDraw, a prototype sketch-based drawing tool, that facilitates drawing of precise geometry diagrams that are often drawn by students and academics in several scientific disciplines. Quickdraw can recognize sketched diagrams containing components such as line segments and circles

for the major phenomena of object recognition: If an arrangement of two or three geons can be recovered from the input, objects can be quickly recognized even when they are occluded, novel, rotated in depth, or extensively degraded. The results from experiments on the perception of briefly presented pictures

We have created and tested Tahuti, a dual-view sketch recognition environment for class diagrams in UML. The system is based on a multi-layer recognition framework which recognizes multi-stroke objects by their geometrical properties allowing users the freedom to draw naturally as they would

This paper draws on the experience of the 1970-95 period to (1) elucidate some of the main causes of child malnutrition in developing countries; (2) undertake projections of how many children are likely to be malnourished in the year 2020 given current trends; and (3) identify priority actions

for computer-aided design systems, gestural interfaces, alternative inputs for keyboard-less appliances, or automatic correction or understanding of diagrams for immediately educational feedback. This project aims to explore and develop current sketch recognition techniques and implement a system for drawing

Abstract. A Euler diagrams are an accessible and effective visualisation of data involving simple set-theoretic relationships. Efficient algorithms to quickly compute the abstract regions of an Euler diagram upon curve addition and removal have been developed, but a strict set of drawing

in geometrical features of a sheet metal. In this paper FLD of perforated Aluminium 1050A sheets are determined by drawing process. Experiments are also conducted to study the influence of percentage of open area, hole size and hole arrangement pattern.

experiment, we used the World Wide Web to collect drawing diagrams from a much broader set of participants. Both studies reveal that subjects draw more quickly using the sketch-like (‘wavy’) line style than the straight line style.

objects, constructions and relations. For example: Geoboard, Mira, Polymorf, Polydron, the look-throughwindow. • Diagrams: drawings representing geometric objects and relations on a sheet of paper. Diagrams may be further subdivided into: • Sketch diagrams, i.e. outline drawings representing some

planning process in current CAD system causes the problems and that 2) reducing the overload can lead to fundamental improvement inoverall drawing e ciency. Wehave conducted an experiment to verify these observations by comparing a typical drawing system and our prototype drawing system called Interactive