Pen pressure is an input channel typically available in tablet pen device. To date, little attention has been paid to the use of pressure in the domain of graphical interaction, its usage largely limited to drawing and painting program, typically for varying brush characteristic such as stroke width, opacity and color. In this paper, we explore the use of pressure in 3D curve drawing. The act o...

In this work, we present a pen-based user interface (UI) that makes manual geometry decomposition easier and helps reduce user time spent on geometry decomposition for hexahedral meshing. This paper presents the first attempt to apply a pen-based UI for geometry preparation for mesh generation. The proposed UI is more natural, intuitive, and easier to use than existing interfaces such as Window...

There are a number of challenges associated with content selection in pen-based interfaces. Supplementary buttons to enter a selection mode may not be available, and selections may require a careful and error prone lasso stroke. In this paper we describe the design and evaluation of Handle Flags, a new localized technique used to select and perform commands on ink strokes in pen-operated interf...

Stretch-A-Sketch is a pen-based drawing program that combines recognition of hand-drawn glyphs with constraint based maintenance of spatial relations. The recognition program identifies hand drawn glyphs, spatial relations between them, and higher-level configurations, such as graph and tree diagrams and floorplan bubble diagrams. Stretch-A-Sketch then maintains the essential relations in these...

This paper concerns a multimodal interface for designing graphics. The human-machine interaction is achieved by using a pen computer connected to a speech recognition device. The user and the computer cooperate: the user sketches graphics with the pen, the computer understands the user's intention and displays an accurate version of the hand-sketched drawing. The final document is produced sequ...

BACKGROUND Since psychological tests such as questionnaire or drawing tests are almost qualitative, their results carry a degree of uncertainty and sometimes subjectivity. The deficiency of all drawing tests is that the assessment is carried out after drawing the objects and lots of information such as pen angle, speed, curvature and pressure are missed through the test. In other words, the psy...