Use WeedFeatures multiple (around 10) times with only Close Point Removal, 3D distance checked and set to 5 to 10 times the original export DEM grid spacing. Use PEDIT Spline to smooth the plines or. This creates the inundation boundary including the shape files you need in Civil 3D, located somewhere under your HEC-RAS project folder in a group named Inundation*.*Ĭheck the box to change regions to polylines. Highlight Inundation Boundary line in Manage Results Maps. In HEC-RAS RAS Mapper, go to Tools, Manage Results Maps.Ĭhoose Inundation Boundary under Map Type. Make sure you have saved your Plan under the Steady Flow Analysis File menu. Use HEC-RAS Steady Flow Analysis, Compute button to calculate the water surface. But normal depth is usually better if you don't have known water surface elevations at the ends of your stream. Use critical depth for a quick and dirty start. Use HEC-RAS Steady Flow Data to add flow and reach boundary elevation conditions. Use HEC-RAS Geometric Data, Tables menu to set Manning Roughness for all cross sections. Accept to use the projection in the file. Start with a blank new Mapper.Ĭlick the + to add the Civil 3D Terrain Export file. Then use the GEOMAP command (you will have to sign in to Autodesk A360) to bring in a map at world coordinates and move your project into approximate place on that map.)Įxport to DEM from Civil 3D. (If nothing else, do this: Under Toolspace, Settings, right-click your drawing name and select Edit Drawing Settings, Units and Zone, Available coordinate systems, and pick the system that seems most appropriate to you. Talk to a GIS person or comment below if you need help with this.
Prepare terrain, stream centerline, and cross sections in Civil 3D.Visit: and select the Purchase button.The quick outline of the process for a simple stream is like this:
#Civil 3d to hec ras software#
To continue using the software after the 30 day trial, you can purchase a license for $359.00 USD from our website.
#Civil 3d to hec ras trial#
This 30-day trial is a fully-functional version of the HEC-RAS Tools. Try SmartDraft HEC-RAS Tools and ignite your productivity. To view HEC-REC Tools video demonstrations please visit: SmartDraft HEC-RAS Tools provides support for: * A tool to import the water surface profiles from a HEC-RAS GIS output (.sdf) file into a Civil 3D drawing. * A tool to draw the cross sections from a HEC-RAS GIS output (.sdf) file within a Civil 3D drawing. * A tool to read the floodplain delineation from a HEC-RAS GIS output (.sdf) file to create as floodplain lines within Civil 3D drawing.
The section lines are polylines which can be added to an alignment’s Sample Line Group.
* A tool to read the cross section from a HEC-RAS GIS output (.sdf) file to create section lines and labels within Civil 3D. * A tool to add river / reach to an existing HEC-RAS Project from sections lines, the alignment, and surface within Civil 3D.
* A tool to add additional cross sections to an existing HEC-RAS Project from sections lines, the alignment, and surface within Civil 3D. The command supports alignments with curves, and section lines as either polylines or Civil 3D Sample Lines. * A tool to create a HEC-RAS project with geo-referenced reach and cross section from Civil 3D section lines, an alignment, and a surface. * A tool to rename by station or renumber with a prefix and suffix the Civil 3D Sample Lines associated to an alignment. These section lines can be used by the Create HEC-RAS Data and Add to a HEC-RAS Project. * A tool to create Autodesk® Civil 3D® Sample Lines or Polyline Section Lines at stations specified in a text file and / or stations entered by the operator.
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