Points Workbench/zh: Difference between revisions

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


==Introduction==
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 />


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


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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All Points Workbench tools can be accessed from the '''Points''' menu. Some tools are also available in the '''Points tools''' toolbar.
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* [[Image:Points_Convert.svg|32px]] [[Points_Convert|Convert to points...]]: Creates point clouds from shape objects.
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* [[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_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_PolyCut.svg|32px]] [[Points_PolyCut|Cut point cloud]]: Cuts points from point clouds.

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

==Notes==

* [[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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Revision as of 15:54, 3 May 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

All Points Workbench tools can be accessed from the Points menu. Some tools are also available in the Points tools toolbar.

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

Notes