| Product(s): | WaterGEMS, WaterCAD, HAMMER, SewerGEMS, SewerCAD, StormCAD, CivilStorm |
| Version(s): | 24.00.02.XX and later |
| Area: | Layout and Data input |
Background
A coordinate system defines how to view spatial data on a flat viewing surface (such as a map or screen). This knowledgebase article walks through the steps of establishing the coordinate system of a hydraulic model in the standalone version of the OpenFlows products. You will need to install OpenFlows Water, OpenFlows Sewer, or OpenFlows Storm version 24.00.02.XX (or higher) in order to use this.
Note: As of version 24.00.02.2X, Coordinate system support currently only influences the ability to align the model with a Bing Map background, and Shapefile Exports (PRJ file). This enables you to more easily align a model without having to manually align three points.
Note: Future versions are planned to be able to use the established coordinate system with tools such as ModelBuilder, LoadBuilder, Terrain Extractor and Terrain models when using external data with an established coordinate system. The ability to reproject a model into a new coordinate system is also planned for future versions.
Using Coordinate Systems in Standalone for Bing Maps
To set the coordinate system, open the Bing Maps option in the Background Layers manager. There is a Coordinate System option in the Map Alignment section.
You can click the Select Coordinate System button to open the manager where you can choose the coordinate system. Options for Projected and Geographic coordinate systems are available for selection. When you choose an option, you will see details on the coordinate system displayed.
The Select Coordinate System manager is also available from the Options dialog (File > Options > Hydraulic Model).
If you select the Manual option for the Map Alignment, you can still enter the 1 or 3 Control Point options to add a Bing Map background.
Changing the Coordinate System
If you need to change the Coordinate System after you initially set it in the Bing Map properties, you can do so from File > Options > Hydraulic Model. Click the Change button and select the new Coordinate System.
Reverting back to Manual (3 points)
If you have set the Coordinate System for your Bing Map and wish to revert back to the 3-point manual alignment method, you must clear the hydraulic model’s set Coordinate System. From File > Options > Hydraulic Model. Click the Clear button. Click OK, go back to the Bing Map properties and select “Manual” under Map Alignment.
Coordinate Systems and Shapefile Export
Starting with version 24.00.02.2X, shapefiles exported from element flextables generate a .PRJ file containing the coordinate system, if a coordinate system has been specified in the model. This enables you to align your exported model elements in other outside applications.