Automatic bridging graphics processing method for power system circuit

Abstract

The invention relates to an automatic bridging graphics processing method for a power system circuit. The method comprises the following steps of: performing regional partition on an entire drawing sheet; primitives classification: defining all primitives into intra-regional primitives and trans-regional primitives; primitive intersection judgment: judging whether each intra-regional primitive intersects or not, and performing intersection judgment on the trans-regional primitives and all primitives gradually; dynamic intersection refreshing; bridging intersection point drawing: calculating bridging intersection point positions, and drawing a bridging displaying effect in a window; and refreshing displaying of primitives: recalculating intersection points when a graphics window is operated by moving, and refreshing intersection bridging displaying following primitives in a display region together till displaying of the entire drawing sheet is refreshed. Due to the adoption of the method, error operation accidents caused by wrong identification of intersection points is effectively avoided, very high practicability is achieved, graphics are easier and more convenient to maintain, and graphics intersection points are definite and clear; and the method plays an important role in rapidly handling power accidents, performing training work and the like.

Description

technical field [0001] The invention belongs to the technical field of power network graph drawing processing, in particular to a graph processing method for automatic crossover of power system lines. Background technique [0002] With the gradual expansion of the power grid, the number of power network graphics has increased sharply, and the user's requirements for power quality have continued to increase, resulting in increasingly complex dispatch management. There are a large number of intersecting lines in the power grid graph. Dispatchers and power supply operators must correctly identify the direction of the lines, so as to understand the current operating mode of the power grid, otherwise mis-scheduling and mis-operation will occur, causing power grid accidents at least, and severe personal injury accident. [0003] At present, for intersecting lines, the power grid graphics drawn by traditional drawing tools are processed in the way of crosses, which are not clearly...

AI Technical Summary

Problems solved by technology

This processing method completely relies on the operator's familiarity with the power grid graphics to identify each intersection point, which puts forward high requirements on personal quality and skills, and cannot completely eliminate the misidentification and misoperation events caused by it. The safe and stable operation brings hidden dangers

If a computer is used to judge by itself, due to the complexity of the power grid, each grid diagram is often very large, and some even have tens of thousands of graphic elements, and each graphic element has more than one terminal, and each terminal is not necessarily a line segment. Judging the crossing of lines is very computationally intensive for the program. At the same time, it is necessary to judge whether each graphic element is intersected. Each graphic element needs to be judged by tens of thousands of graphic elements to obtain a complete intersection situation. At this time, the number of judgments needs to be Hundreds of millions of times

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