Is my floor really flat, lets take a look at that in ReCap

Gallery-SanFrancisco-1813.jpg

One of the various things I use it for is viewing the integrity of surfaces. Is the floor truly flat? Why is water pooling on my roof? With a good scan, Recap can be used to show the elevations of elements within a specified range.

 

First thing you need to do is narrow your limit box to just above and just below the floor or roof.

  • Using the Limit Box tool, hover over the top face, and it will turn blue.
  • Left click on the face, and it will turn green and allow you to slide the face up or down.
  • Rotate the view and do the same for the bottom face.

Adjust the Limit Box until you only see the elements you need. When done, you should be left with a thin sliver showing only the needed surface.

hmunsell_0-1753468567320.png

 

 

From the Display settings, under the color mode settings, is a list of options to allow the user to select different options. Among those is the Elevation tool. This will color the point cloud based on the elevation of the points from the origin.

hmunsell_1-1753468687433.png

 

 

hmunsell_2-1753468797586.png

 

With the Elevation option selected, a rainbow bar appears in the bottom left corner of the screen. In the top left corner of the color bar, select the gear icon. This will open a variety of options.

 

Spectrum through Ramp displays various preset options. Selecting New Gradient will create a new display option and allow you to edit the display settings as needed.

The New display name will appear at the top of the list.

  • Selecting the new name gives options to rename, delete, and assign a new color scheme.
  • The Smooth setting provides distinct color options that can help display elevations more clearly. I have found that setting this to Banded 32 can help give a more definitive separation in the level colors.
hmunsell_3-1753468888960.png

 

 

  • The Range option allows you to select the Maximum and Minimum elevations to start and stop the color range.
    • The target options next to each elevation also allow the user to manually pick points in the point cloud to set the elevations.
    • In this example, there is a 2.8” difference in high and low points of the elevation ranges.
hmunsell_4-1753468957309.png

 

The resulting image should display the highs and lows of the floor. This can help identify imperfections in the surface or validate that it has a proper slope to drainage locations. Using the out-of-the-box sample file that comes with Recap Pro.

hmunsell_6-1753469116133.png

  • The Color Scheme has been named.
  • Banded(32colors) has been used to provide more definition in the color separation.
    • The blue is high, and the red is low. You can see a nice, fairly continuous slope to the floor slab.
  • The Min/Max elevations have been set.

 

The example below shows the color separation set to Step (left) and Smooth (Right). It also shows a low point in the floor that does not line up with the drain.

hmunsell_7-1753469237806.png

 

There are other settings that can be set to help refine the image. These instructions should get you on your way to analyzing different aspects of your point cloud data. As you can see, there is a lot more to do with Recap Pro than just taking measurements and navigating around a point cloud.

 

 

 

 

1 Comment
tilo_pfliegner
Enthusiast

Great recap (no pun intended!) on using Recap Pro for visual elevation and flatness analysis, it’s a powerful and often underutilized way to evaluate surface integrity directly from point cloud data.

For more complex BIM quality control scenarios, tools like Qbitec (for Revit) Real-time Quality Analysis can extend this approach beyond  surface flatness checks, supporting real-time clash detection, tolerance validation, and completeness checks across federated or discipline-specific models. But for quick, visual assessments and on-the-fly verification, Recap remains a solid choice.