基于ObjectArx的地下管线平断面图生成方法

An Automatic Generation Method of Plane-Section Map of Underground Pipeline Based on ObjectArx

以AutoCAD为平台,利用ObjectArx进行综合管线图绘制时,将管线关键信息写入AutoCAD对象字典中,进行数字化建模。以每段施工路径为单位构建梯形裁剪面,利用选择集选取与裁剪面相交的管线并进行裁剪生成带状平面,以提高数据的处理效率。以单个裁剪面为单位构建坐标变换矩阵进行带状平面摆正操作,并对摆正带状平面产生的误差进行补偿,生成水平带状平面图。结合摆正后的带状平面图,将断面信息投影到断面,最终生成地下管线平断面图。

Use AutoCAD as the platform,the key information of the pipeline is written into the AutoCAD object dictionary for digital modeling when using ObjectArx to draw a comprehensive pipeline map.Construction of trapezoid clip plane with each section of construction path,use a choice set selection the pipelines intersect with the clip plane and then tailor to produce a strip plane to improve the processing efficiency of data.Building a coordinate transformation matrix with a single clip plane as a unit and straighten the strip plane,and compensation for the deviation produced by the straightened,generate the horizontal strip map.The section information project to the cross section combine with the strip map after straightened,finally generate a Plane-Section Map of underground pipeline.