Automatic hydraulic model establishment method based on CAD drainage network drawing information
A drainage pipe network and drawing information technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of manual input of attribute data one by one, heavy workload, cumbersome data layered processing, and prone to errors , to achieve the effect of ensuring practicability, avoiding cumbersome work, and reducing workload
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[0029] The specific implementation process of the present invention is as follows figure 1 As shown, including the following steps:
[0030] (1) Build a hydraulic model database. Create a Shapfile file in ArcGIS, including inspection wells and pipelines, set the FeatureType of the inspection well to the Point attribute, and the FeatureType of the pipeline to the Polyline attribute. Add the necessary fields to the attribute table of the created shp file. The inspection well attribute table includes the number, bottom hole elevation, well depth, ground elevation, X coordinate, and Y coordinate fields. The pipeline attribute table includes pipeline number, upstream node, downstream node , The elevation of the bottom of the upstream pipe, the elevation of the bottom of the downstream pipe, the upstream burying depth, the downstream burying depth, the pipe length, and the pipe diameter fields;
[0031] (2) Process CAD drainage pipe network drawings. CAD original drainage pipe network...
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