Easy3DMatchMatch

Support

Required licenses

Easy3DMatch

Recommended images

The images from the folder Sample Images/3D/Easy3DMatch/Match

Location

3D Processing/Easy3DMatchMatch

Note

In the C# sample, it is not possible to set all the parameters within the GUI.

Purpose

The matching consists in aligning the sample on the reference and comparing both to find defects in the sample.

This sample program demonstrates how to:

  • Match a sample (point cloud or ZMap) on a reference (3D mesh, point cloud or ZMap).

Code highlights

Use the recommended images:

  • Reference: .stl or .ply file with goldenScan in the name.

  • Sample: .ply file with goldenScan in the name.

  • Both reference and sample files should come from the same folder (Object 1 or Object 2).

  • In case of .ply reference, they should both contain top or both contain bottom.

This sample contains many options that are not detailed here. Only the main code path is described here.

  1. Set the reference mesh with its viewpoint (azimuth and elevation angle).

    matcher_.SetReference(referenceMesh_, azimuthReference_, elevationReference_);

  2. Perform the matching for the given sample point cloud with its viewpoint and retrieves the result.

    match_ = matcher_.Match(samplePointCloud_, azimuthSample_, elevationSample_);

  3. Retrieve the result of the comparison as a point cloud containing the point-to-point distances between sample and reference.

    matcher_.GetComparisonPointCloud(resultPointCloud_, true, true, showComparisonResultOnReference_, showResultFullModel_);

  4. Highlight the anomalies detected by the E3DMatcher in the viewer.

    viewer_.AddRenderSource("anomaly_" + i.ToString(), match_.Anomalies[i].BoundingBox, new EC24(255, 255, 255), 128);