Select English (United States) as the format. Windows will display the Region and Language dialog box. From the Windows Control Panel, select Region and Language. If something other than the period is being used as the decimal separator, the correct decimal separator can be selected within Microsoft Windows. Unfortunately, the HEC‑RAS analysis engine requires that the period be used as a decimal separator. Most countries use either a period (.) or a comma (,) symbol as the decimal separator in numbers each country has adopted a standard for which decimal separator symbol is to be used. See this section for more information on assigning a coordinate reference system. Note that the selected Coordinate Reference System (CRS) should match the units to be used in defining the HEC‑RAS model data.
Hec ras none of the x's are geo referenced manual#
Refer to the HEC-GeoRAS User Manual for definitions and context of the steps and tools in. Celso Ferreira Prepared by Lora Baumgartner Exercise Topic: Getting started with HEC GeoRAS Objective: Create a HEC-RAS model of the George Mason University watershed using the GeoRAS toolbar in ArcMap. However, the software will perform unit conversions and reprojections of GIS and elevation data. 1 George Mason University Department of Civil, Environmental and Infrastructure Engineering Dr. GeoHECRAS will not perform unit conversions (i.e., US to Metric, Metric to US) of HEC‑RAS models. This confirmation dialog box will inform the user that the loaded data and the HEC‑RAS model are in different unit systems, and will ask if it should continue with the HEC‑RAS import process. If other data (e.g., shapefiles) have already been loaded that are in a different unit system than the HEC‑RAS model, then the software will display a confirmation dialog box when importing the HEC‑RAS model. For example, even if the default project units are US, importing a metric HEC‑RAS model will set the project units as metric. The default units can be overwritten by the user.Īn imported HEC‑RAS model defines the project’s units.
Select File | Options to view the Options backstage page. The units are defined in the Options backstage page.
If the computer is located outside of the United States, it will default to metric (SI) units. If the computer is located within the United States, it will default to US units. The software will auto detect the country that the computer is located in. GeoHECRAS fully supports both Metric (SI) and US units.
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