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Importing data into HydroCAD
Although the interactive screens are the best way to enter most data into HydroCAD, there are also a number of capabilities for importing data directly into HydroCAD.
1) Importing older HydroCAD files
To use a project file created by HydroCAD-5 or earlier, select Project|Import|HydroCAD-5 from the main menu. After selecting the desired project, the data is converted and stored in the current .HCP file format.
2) Importing hydrograph data from another HydroCAD project
If a watershed is divided into two or more HydroCAD project files, a link can be used to import the final outflow(s) from the upper section of the watershed into the lower section. Details here.
3) Importing hydrograph data from other programs
A link can be used to import data from a basic text file (.TXT), or from spreadsheet data that has been saved as comma-separated values (.CSV). Details here.
4) Importing TR-20 data
A TR-20 data file can be converted into a HydroCAD project file by using Project|Import|TR-20 on the main menu. For details read about TR-20 Data Import. This capability can also be useful for importing rating tables, rainfall distributions, or any other data that may already be available in TR-20 format. This is a new feature added in HydroCAD 8.5. HydroCAD-10 also adds the ability to import rainfall data from a WinTR-20 file.
5) Importing data from other H&H programs
Most H&H programs use proprietary file formats, making it impractical to import the data directly into HydroCAD. However, if you are able to export the data to an intermediate TR-20 file, then you can use Project|Import|TR-20 to load this data into HydroCAD.
6) Importing tabular watershed data
HydroCAD-10 provides the capability to import complete watershed (subcatchment) data in tabular (CSV) format. For details click the Help button on the Project|Import|Subcatchments screen. A corresponding watershed export capability is also available.
7) Importing subarea data from AutoCAD
HydroCAD-10 features direct import of subarea data from an AutoCAD drawing (see the Settings|Watershed screen for details). Details here.
8) Importing other data
Most HydroCAD data that is entered in tabular format (such as stage-storage tables), can be loaded from a .CSV file using the "Load from File" command on the right-click menu. For further information, select "Save to File" on an existing table to create a sample .CSV file.
9) Write your own conversion program!
HydroCAD project files are stored in an easy-to-read plain-text format, making it relatively easy to generate a usable file with any programming language. If you currently have programmatic access to your current data (via a scripting language, Basic, etc.) then you can export the desired data to a HydroCAD project file. Details here.
Also read about exporting data.
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