Cyclone 3DR | Surface analysis

Purpose

The aim of this page is to introduce you to the various surface analysis tools, so that you can choose the one or ones that best suit your needs.

Analyze Surfaces

Command	Description	Useful for	Input	Output
Surface Levelness	Calculates the differences in level along a plane, in a given direction	Checking the horizontality of a slab Checking the verticality of a wall Analyzing altitude variations of a terrain	A point cloud (3DR native cloud) A mesh	Analyzed surface Gridded inspection (optional, if mesh as input) Report data
Surface Flatness	Evaluates the local flatness of a surface to highlight bumps and depressions	Flatness assessment of : roads courtyards walls slabs other planar surfaces.	A point cloud (3DR native cloud) A mesh	Analyzed surface Gridded inspection (optional, if mesh as input) Report data
Slope Analysis	Evaluates the local slope at each point of the point cloud or each vertex of the mesh	Assessment of terrain slopes Roofs and drainage surface Access ramps for people with reduced mobility	A point cloud (3DR native cloud) A mesh	Analyzed surface Gridded inspection (optional, if mesh as input) Report data
FF/FL Analysis	Computes standardized Floor Flatness (FF) and Floor Levelness (FL) values according to ASTM E1155	Concrete floor/slab flatness and levelness quality control according to ASTM E1155	Point cloud (3DR native cloud or LGSx)	Analyzed surface FF and FL index measurements along the sampling lines Report data
Plan Deviation (Cloud vs Surfacic Geometry or Mesh vs Surfacic Geometry )	Calculates and visualize the deviations between a point cloud or mesh and a reference planar geometry	As-built vs design verification, Checking a slab, wall or façade against reference geometry Deformation monitoring	A point cloud (3DR native cloud) and a mesh A point cloud (3DR native cloud) and a geometry (plane)	Analyzed object Report data
Along direction	Colors a point cloud or mesh according to its position along a user-defined direction. This command is primarily intended for visualization purposes rather than inspection.	Quick visualization of an object's depth, height, or spatial distribution (ex: DTM)	A point cloud (3DR native cloud) A mesh	Analyzed object
Compare / inspect	Computes deviations between two objects in order to evaluate their geometric conformity.	As-built vs design verification Checking a slab, wall or façade against reference object Deformation monitoring	Measured object A reference object ( 3DR native point cloud, mesh, or CAD geometry)	Deviation map Report data

Customized deliverables from an analyzed surface

Once the analysis has been completed, it is possible to further extract information from the surface. Several built-in commands are available depending on the inspected element and expected output.

Gridded Inspection

Gridded Inspection generates a regular grid of inspection points from an analyzed mesh. Each inspection point in the grid contains the locally calculated inspection value (deviation, slope, etc.). Its computation requires an existing inspection on a mesh, and the results are sampled according to a spacing defined by the user.

It can be used to export inspection values to Excel or CAD software such as AutoCAD.

Integrated option
This function is also directly integrated into surface analysis commands, such as Surface Levelness, Surface Flatness and Slope Analysis.

Regular grid generated from the scalar values produced by the Surface Levelness analysis

Localize Values

Localize Values identifies the minimum and maximum values of an analysis and extracts contour lines corresponding to user-defined value intervals.

These contour lines can be useful for locating bumps and depressions on a slab, checking deviation levels, and identifying areas that are outside the specified tolerance.

Contour lines/isolines are available only on inspected meshes.

Extract contour lines based on scalar values

Statistics

Statistics produces a statistical summary of the inspection results (minimum value, maximum value, mean, standard deviation, value distribution, etc.).

The statistics are calculated from the values generated by the specific analysis (Surface Flatness, Surface Levelness, Slope Analysis, etc.).

It gives an overall assessment of the quality and uniformity of a surface.

Statistics can also be exported in a chart showing the distribution of inspection values by interval.

Projected Polyline

Any polyline projected onto a surface results in a polyline that follows the geometry of that surface.

If the surface contains inspection data such as that for Surface Levelness, Surface Flatness, or Slope Analysis, the polyline(s) can inherit these values through the Create Inspection Section function.