Toposurface in Revit is defined as a 3D topographical surface created using points or by using an imported dataset.

In this tutorial, you will learn to,

  • Create a toposurface by points
  • Create a toposurface with DWG import
  • Create a subregion
  • Split and Merge toposurfaces
  • Create a graded region

Create a Toposurface by Points

Step by Step Guide: Create a toposurface by placing points

Sometimes, you receive a points data file from the Site Surveyor using which you may like to create a topographical surface in Revit. Before importing the points file, please ensure that your imported file matches the following requirements:

  • The points file must be in a comma-delimited file format (a CSV or TXT file).
  • The file must contain x, y, and z coordinate numbers as the first numeric values in the file.
  • Any additional numeric information for a point must occur after the x, y, and z coordinate values.

Step by Step Guide: Create a Toposurface with a Points File

Create Topsurface from DWG file

Most surveyors or site engineers use CAD to collect the data points for the topography survey. If you have received a DWG file that you would like to import in Revit and create your toposurface, you can use the tutorial below.

Step by Step Guide: Create a toposurface from an imported CAD file

Learn about how to create a toposurface from a DWG file with this Video Tutorial – by Autodesk. Although, this tutorial is created using Revit 2011 version, the method shown here is also applicable to other Revit versions 2011 and above.

Learn about how to grab real world geo-location sites from SketchUp, convert them to DWG and bring them to Revit using this video tutorial – by HowNowVideos

Create subregions in Toposurface

If you would like to mark up an area on your toposurface that contains a different material such as green spot of grass, parking lot, road, etc, you can create a subregion. A subregion adapts to the contours of the toposurface and is dependent on it. Thus, if you delete the toposurface, the subregion also gets deleted.

Step by Step Guide: Create a Toposurface Subregion

Learn about how to create subregion on the toposurface using this Video Tutorial – by Autodesk

Split and Merge Toposurfaces

If you would like to split your toposurface in two independent surface and then edit them separately, you can use Split Surface tool. Use Merge tool to join two surfaces into one.

Step by Step Guide:

Learn about the difference between Split Surface and Subregion with this Video Tutorial – by emanuel Kantbronce

Learn about how to merge two toposurface with this Video Tutorial – by John Bordeau

Create a Graded Region

Graded regions are created when you want to compare your original toposurface with the proposed site design. Revit will mark the existing surface as demolished phase and a copy of it will be created as a new surface in the current phase for you to work on the proposed site design. You can later compare these two surfaces to calculate total cut/fill volumes.

Step by Step Guide: Create a Graded Region

Learn how to create a graded region with this video tutorial – by Autodesk

Report Cut/Fill Volumes

Revit can report cut and fill volumes on a site by comparing two surfaces from different phases. Creating a graded region is a helpful tool to create a copy of the toposurface in the current phase and work on the proposed site development which can then be compared with the original toposurface.

Step by Step Guide:

Learn about how to calculate cut/fill volumes with this video tutorial – by Autodesk

Property Line

Use property lines to mark the area of your property on Site. Property lines automatically calculate the area of the property and can be tagged, scheduled as well as exported. By default, the property lines are visible only on Site plan. To enable its visibility on other view, adjust Visibility Graphics.

Learn how to create a property line by adding distances and bearings from a site survey and add setbacks to the site plan with this video tutorial – by Jonathan Falkinburg

Step by Step Guide:

Q&A

Have any Questions? or Suggestions? or Feedback? Please feel free to Contact Us, we will get back to you as soon as we can.

Modeling Toposurfaces

You can import pages from a PDF file or Images (like JPG, TIFF, PNG, BMP, etc) into your Revit views to use them as references or trace over them to building your model.

Video Tutorial

Learn about how to add a page from a multi-page PDF into a Revit view with this video tutorial – by Autodesk

Learn about how to add a raster image in Revit View with this Video Tutorial – by Autodesk

Step by Step Guide

Q&A

Have any Questions? or Suggestions? or Feedback? Please feel free to Contact Us, we will get back to you as soon as we can.

Import PDF and Images File

The Industry Foundation Classes (IFC) is a platform neutral, open file format specification developed by buildingSMART to facilitate interoperability in architecture, engineering and construction industry. It is commonly used collaboration format in Building Information Modeling projects and allows exchange of BIM models between different software platforms.

Video Tutorial

Learn how to link IFC model into Revit with this Video Tutorial – by CADLearning

Step by Step Guide

  • Link an IFC File – Use this option if you want to use IFC file as a reference for your BIM model
  • Open an IFC File Use this option if you want to convert the IFC model into a Revit model.

Q&A

Have any Questions? or Suggestions? or Feedback? Please feel free to Contact Us, we will get back to you as soon as we can.

Import IFC File

Revit allows importing SkethUp files both in a project as well as in a family. You can choose to import the SketchUp projects in a mass family which will allow you to use massing tools and convert imported 3D faces to walls, floors, etc.

Video Tutorial

Learn more about how to add a 3D warehouse object from SketchUp into Revit with this Video tutorial – by Balkan Architect

Learn more about the workflow of bringing a conceptual design project created in SketchUp into Revit with this Video Tutorial – by Joseph Kim. In this tutorial, get an overview of the new improvements in Revit 2020.1 for working with SketchUp files.

Learn about how to import a SketchUp file into a Revit family with this Video Tutorial – by Joseph Kim

Step by Step Guide

Q&A

Have any Questions? or Suggestions? or Feedback? Please feel free to Contact Us, we will get back to you as soon as we can.

Import SketchUp File

You can import ACIS Solids using SAT file format directly into a project file or into a family file. When imported in the project, these 3D shapes can be assigned a Revit category which allows more intelligence in the model than other file formats imported into Revit from other applications.

Video Tutorial

Learn about how to import a 3D SAT file into Revit and assign it a Revit Category with this Video Tutorial – by Autodesk

Step by Step Guide

Q&A

Have any Questions? or Suggestions? or Feedback? Please feel free to Contact Us, we will get back to you as soon as we can.

Import 3D SAT File