Points Workbench: 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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[[Image:PointsWorkbench.svg|64px]]
These tools are already available:
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== Introduction == <!--T:1-->
The [[Points Workbench|Points Workbench]] is intended to give you specific tools for working with [http://en.wikipedia.org/wiki/Point_cloud point clouds]. The workbench is still in development.

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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. Then the cloud of points can 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 of parts.

== Tools == <!--T:4-->


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* [[Image:Points_Import_Point_cloud.svg|32px]] [[Points ImportPoints|Import Point Cloud]]: will import coordinates for 3D-points from a text file
* [[Image:Points_Import_Point_cloud.svg|32px]] [[Points_Import|Import]]: imports a point cloud 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:Points_Export_Point_cloud.svg|32px]] [[Points_Export|Export]]: exports a point cloud to a text file.
* [[Image:PolygonPick.svg|32px]] Polygon Pick: to do
* [[Image:Points_Transform.png|32px]] [[Points_Transform|Transform]]: transforms a point cloud.
* [[Image:Points_Convert.png|32px]] [[Points_Convert|Convert]]: converts to points.
* [[Image:PolygonPick.svg|32px]] [[Points PolyCut|Polygon cut]]: cuts a point cloud with a picked polygon.
* [[Image:Points_Merge.png|32px]] [[Points Merge|Merge]]: merge several point clouds into one.


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== Limitations == <!--T:6-->
At the moment the workbench has no automatic routines to deal with the imported points, but the user can use [[Python]] scripting to programmatically process the data.
The coordinates of the points have to be stored in a text file. <br />

The ending of the file has to be ".asc".<br />
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The coordinates have to use point (NOT comma) and have to be separated by a space.
See the discussions in the forum:
* [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)
* [http://forum.freecadweb.org/viewtopic.php?f=3&t=16098 Inspecting Point cloud].


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It is also possible to use the tools from the [[Draft Workbench|Draft Workbench]] to connect the points using Draft objects such as [[Draft Line|Lines]] and [[Draft BSpline|Splines]]. Using the [[Draft Endpoint|Endpoint]] snapping method will ensure that the tools snap to the imported points.
Example point-cloud-file
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[[Category:User Documentation]]


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Revision as of 12:06, 10 January 2020

Introduction

The Points Workbench is intended to give you 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. Then the cloud of points can 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 of parts.

Tools

Limitations

At the moment the workbench has no automatic routines to deal with the imported points, but the user can use Python scripting to programmatically process the data.

See the discussions in the forum:

It is also possible to use the tools from the Draft Workbench to connect the points using Draft objects such as Lines and Splines. Using the Endpoint snapping method will ensure that the tools snap to the imported points.