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The Points module is made to give you specific tools for working with [http://en.wikipedia.org/wiki/Point_cloud point clouds]. It is still in development.


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These tools are already available:
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[[Image:Workbench_Points.svg|thumb|128px|Points workbench icon]]

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==Introduction==

The [[Image:Workbench_Points.svg|24px]] [[Points_Workbench|Points Workbench]] offers specific tools for working with [http://en.wikipedia.org/wiki/Point_cloud point clouds]. The workbench is still in development.

A point cloud is a collection of points in 3D space. A point cloud is generally produced by scanning the surface of a solid object. The cloud of points can then be used for many purposes including building a mesh for the object, reconstructing the surfaces and solid volumes, reverse engineering, as well as for visualization and quality inspection.

==Tools==

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* [[Image:Points_Import_Point_cloud.svg|32px]] [[Points Import/sv|Import Point Cloud]]: will import coordinates for 3D-points from a text file
* [[Image:Points_Import_Point_cloud.svg|32px]] [[Points Import/sv|Import Point Cloud]]: will import coordinates for 3D-points from a text file
* [[Image:Points_Export_Point_cloud.svg|32px]] [[Points Export/sv|Export Point Cloud]]: will export coordinates for 3D-points to a text file
* [[Image:Points_Export_Point_cloud.svg|32px]] [[Points Export/sv|Export Point Cloud]]: will export coordinates for 3D-points to a text file
* [[Image:PolygonPick.svg|32px]] Polygon Pick: to do
* [[Image:PolygonPick.svg|32px]] Polygon Pick: to do
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* [[Image:Points_Import.svg|32px]] [[Points_Import|Import points...]]: Imports a point cloud from a file.

* [[Image:Points_Export.svg|32px]] [[Points_Export|Export points...]]: Exports a point cloud to a file.

* [[Image:Points_Convert.svg|32px]] [[Points_Convert|Convert to points...]]: Creates point clouds from shape objects.

* [[Image:Points_Structure.svg|32px]] [[Points_Structure|Structured point cloud]]: Creates a structured point cloud from the points of an existing point cloud.

* [[Image:Points_Merge.svg|32px]] [[Points_Merge|Merge point clouds]]: Creates a point cloud by combining the points of two or more point clouds.


* [[Image:Points_PolyCut.svg|32px]] [[Points_PolyCut|Cut point cloud]]: Cuts points from point clouds.
At the moment, the points cloud workbench has no automatic routines to deal with the imported points.<br />
But linking against the points cloud library (the windows version of FreeCAD already has that capability) you could<br />
use python commands to further process your data, see discusion [http://forum.freecadweb.org/viewtopic.php?f=13&t=15988 here] and [http://forum.freecadweb.org/viewtopic.php?f=13&t=16103 here] (german sub-form).<br />
Another interesting discussion [http://forum.freecadweb.org/viewtopic.php?f=3&t=16098 here] (english Help-Forum).<br />


==Notes==
Of course you could also use the draft workbench within FreeCAD and connect the points using draft elements.<br />
Using snap-mode "end-point" will ensure snapping to the points.


* [[Draft_Workbench|Draft]] commands such as [[Image:Draft_Line.svg|24px]] [[Draft_Line|Draft Line]] and [[Image:Draft_BSpline.svg|24px]] [[Draft_BSpline|Draft B-spline]] can be used to connect the points in a point cloud. Use [[Image:Draft_Snap_Endpoint.svg|24px]] [[Draft_Snap_Endpoint|Draft Snap Endpoint]] to snap to the points.
* [[Python|Python]] can be used to analyze and process point clouds. See the following forum discussions:
** [http://forum.freecadweb.org/viewtopic.php?f=3&t=16098 Inspecting Point cloud].
** [http://forum.freecadweb.org/viewtopic.php?f=13&t=15988 Fläche aus Messwerten] (German)
** [http://forum.freecadweb.org/viewtopic.php?f=13&t=16103 Schnitte durch Flächen aus Messwerten] (German)


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Latest revision as of 16:00, 25 November 2023

Points workbench icon

Introduction

The Points Workbench offers specific tools for working with point clouds. The workbench is still in development.

A point cloud is a collection of points in 3D space. A point cloud is generally produced by scanning the surface of a solid object. The cloud of points can then be used for many purposes including building a mesh for the object, reconstructing the surfaces and solid volumes, reverse engineering, as well as for visualization and quality inspection.

Tools

  • Merge point clouds: Creates a point cloud by combining the points of two or more point clouds.

Notes