<< Click to Display Table of Contents >> Navigation:  Wadiso 6 Tutorial > Wadiso 6 Tutorial: step-by-step > Alternative way of compiling a model from a CAD drawing > Verifying the correctness (and saving) of the spatial correlation data

After this spatial correlation is complete, right-click again in the GIS Layer Manager on the layer labelled SYSTEM_EXISTING, and click on Edit Database.

 

Click on each record in the table to highlight the pipe in the graphical environment (the data table and the graphical environment are synched). Hereby, you can compare/verify the diameter listed in the table with the CAD text. There might be a mismatch or two, as spatial correlation is only as accurate as the underlying information and the correlation parameters.

 

Proceed to check and fix any data that has been entered incorrectly. In this case, the pipe in the north-east of the reticulation network should be wrong, with a diameter of 500 mm, instead of 200 mm. This is because there was no nearby 200 mm Ø text label for this pipe, and it selected the nearest text, namely that of the 500 mm Ø pipe, which is linked to the ground level tank.

 

When all the records have been checked and fixed correctly, the next step is to save the database as a shapefile. Click on the red star, next to SYSTEM_EXISTING. Browse to Documents\GLS\Wadiso\, and save the file as My_SYSTEM_EXISTING.shp.

 

Note: The default file type when saving GIS Layers is set as Sqlite (*.sqlite). Simply change the type from the drop-down list to Shapefile (*.shp).

 

The CAD drawing has now successfully been converted into a temporary GIS database. We will now continue to convert this layer into a useful Wadiso hydraulic model.