Visualization of object-oriented programs by class diagrams is a widely used technique. So far no commonly agreed aesthetic criteria have been recorded in order to standardize and measure the quality of class diagrams. In this paper we focus on UML class diagrams, the standard notation for class diagrams in software engineering. We propose some aesthetic criteria which reflect the highly sophis...

This paper is primarily devoted to an algorithm for detecting dimension sets in engineering drawings that are drawn to ISO drafting standards. Our approach joins those starting with detection of dimension text while most methods are started with the detection of arrowheads. First, we detect among the segments and arcs resulting from the vectorization process those that fulfill some location con...

In numerous application areas, general undirected graphs need to be drawn, and force-directed layout appears to be the most frequent choice. We present an extensive experimental study showing that, if the goal is to represent the distances in a graph well, a combination of two simple algorithms based on variants of multi-dimensional scaling is to be preferred because of their efficiency, reliab...

Mechanical design and manufacturing information for 3-D solid objects has been eeectively conveyed through a set of annotated orthographic projections and optional cross-sections. This forms the basis of engineering drawings, which solve the problem of unambiguously representing a 3-D object on a 2-D plane. In this paper we address the inverse problem: given an engineering drawing of an object,...

Engineering drawings provide a significant challenge to image analysis. The goal is to take a scanned engineering drawing image and produce an interpretation of the contents in terms of characters, digits, arrows, line segments, dimensions, etc. These can then be incorporated into a legacy system re-engineering process (e.g., image analysis must provide parameter values for manufacturing featur...