Graphs can be used to convey information about relationshipsin many applications. State transition diagrams, PERT/CPMcharts, and entity-relationship diagrams are a few examplesof many applications involving graphs. Typically, nodes inthe graph represent items in the application and the edgesrepresent the relationships among these items. A grapheditor is an interactive tool that presents a graph to theuser pictorially and allows the user to edit the graph.This monograph presents the design of an extendible grapheditor, which is a graph editor that can be adapted easilyto many different application areas. Several fundamental andrecurring problem areas associated with graph editors areinvestigated and a solution is proposed for each. The topicsinvestigated are:- Graph layout: a layout constraint mechanism is presentedwhich can easily be combined with various graph layoutalgorithms.- Graphical abstraction: a novel clustering techniquecallededge concentration is presented which can reduce theapparent complexity of the graph.- Persistence: the graph structures produced by theeditorcan be kept in long-term storage using a standardized,external format for graphs.- Extendibility: the design of the proposed graph editormakes it easy to adapt to various applications.To demonstrate their feasibility, the proposed solutionshave been incorporated into EDGE, an extendible graph editorprotoype.
A beautifully illustrated children's book. The Spanish/English vocabulary is great for children learning to speak a new language.
Wonderful Illustration
Published by Thriftbooks.com User , 27 years ago
This book had extremely vivid and colorful illustration that caught both my eye and that of my son's. It was a creative story and taught simple Spanish words. The Spanish element of it made it more unique than most alphabet book on sale.
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