Construction of isolines |
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The purpose of construction of isolines is reception of planned position of lines of equal values of the characteristic on a set of picket points. The characteristic for reception of isolines can be stored in semantics of picket points or in the table of a database connected with them. User must specify structure of processable picket points and placing of the construction characteristic. The structure of processable picket points can be set or by means of the map editor before a call of the application, or by installation of the filter of processable objects in dialog of the task. In that case if the characteristic of isolines construction is located in the table of a database, it is necessary to execute preliminary linking of picket points with the corresponding records of the table. Forming isolines is carried out in borders of a picket points set. Such approach to the decision of the task allows to receive a trustworthy information excluding errors of extrapolation outside borders of a set. Construction of Delone triangulation on picket point Tracking of isolines on sections As a result of work of the program the user map with a name specified by user is created, into which the generated isolines are put. As... |
