Point selection with polyline
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This is a tool for selecting points using a 3D shape, in particular a polyline. Drag the point cloud to be used as source of your selection on the recipe window. Then, drag the polyline you want to use as contour to select points from your cloud. Then, you need to specify a planar reference. This can be the current view or a custom plane. The procedure works as follows: the polyline is projected on the planar reference you chose. If the polyline is not closed, it is automatically closed by connecting the last point to the first. Then, the polyline projected on the plane delimits a 2D closed region. The points of your cloud are also projected on the plane: the ones falling inside the projected polyline are marked as selected, the ones falling outside are marked as not selected. If no points were selected, Reconstructor gives a warning message and stops the procedure. If any points were selected, Reconstructor creates a new unstructured point cloud called Selection of <input-point-cloud-name> and stores it as a new item in the project. |