How can I add pipes using ArcView to an existing Hydra model without changing my G_ID#s?
If you have the choice of using AutoCAD, GISMaster offers a cleaner alternative way to update data while maintaining your existing G_ID numbers. However, if you need to use ArcView for this, there are many different ways to accomplish this result. Here is one way: • In ArcView, put your new pipes onto a separate layer from your existing ones. • Create a Shapefile of your new pipes. Use Layer Transfer Wizard to convert your new pipes to a Hydra DXA/DBF file. • Take note of the highest G_ID# in your existing system. Open each of the DXA and DBF files in Excell, and add that highest G_ID# to the G_ID#’s of the new pipes files. • Add the data from the new pipes files to your existing Hydra files. You can copy/paste the DXA data in a text editor, and concatenate the DBF records with a database program. • Open the modified layer in Hydra. Re-do topology, SE connects, and flow files, as necessary. As another alternative, if you are only updating the data, and not graphical entities, consider
