| 引用本文: | 陈 勇,邓其军,周 洪.无重叠交叉的配电网单线图自动生成算法[J].电力自动化设备,2010,(11): |
| CHEN Yong,DENG Qijun,ZHOU Hong.Automatic generation of single-line diagram without overlap or intersection for distribution network[J].Electric Power Automation Equipment,2010,(11): |
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| 摘要: |
| 以设备的拓扑连接关系为基础，将配电馈线的地理接线图自动转换成单线图时，存在的最大问题就是线和图标的重叠交叉的消除。基于面向图形对象的单线图绘制工具，提出了一种通过寻找最佳绘制方向来尽可能避免重叠交叉的新方法。当需要向某个方向绘制一个图标时，先检测按此方向绘制是否会与已经存在的对象发生重叠交叉。如果有重叠交叉，则依次尝试向其他2个垂直方向绘制。如果3个方向都无法绘制，则通过局部图幅扩展算法对图幅进行扩展，得到至少1个图标的位置后按照原方向进行绘制。结合实例详细描述了所提出方法的算法步骤。 |
| 关键词: 配电网 地理信息系统 单线图 自动生成 拓扑 GDI + 技术 重叠交叉 |
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| Automatic generation of single-line diagram without overlap or intersection for distribution network |
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CHEN Yong1, DENG Qijun1, ZHOU Hong2
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1.Department of Automation，Wuhan University，Wuhan 430072，China;2.Department of Automation，Wuhan University，Wuhan 430073，China
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| Abstract: |
| The most difficulty in converting the GIS（Geographic Information System） map into the single-line diagram based on the equipment connection topology of distribution network is to avoid the overlap or intersection of buses and icons，for which，an approach of searching the best drawing direction is proposed based on the graphic-object-oriented drawing tool. Before drawing an icon in an assigned direction，it checks whether the intersection or overlap will occur. If it will，the two perpendicular directions are checked respectively. If it fails，the partial diagram extension algorithm is used to get at least one free icon position. The detailed algorithm is illustrated with an example. |
| Key words: distribution network GIS single-line diagram automatic generation topology GDI+ technology overlap ／ intersection |
