Points Workbench/sv: Difference between revisions
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[[Image:Workbench_Points.svg|thumb|128px|Points workbench icon]] |
[[Image:Workbench_Points.svg|thumb|128px|Points workbench icon]] |
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==Introduction== |
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The [[Image:Workbench_Points.svg|24px]] [[Points Workbench|Points Workbench]] |
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. |
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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. |
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. |
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==Tools== |
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* [[Points_Convert|Convert to points...]]: Creates point clouds from shape objects. |
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* [[Points_Structure|Structured point cloud]]: Creates a sorted point cloud from the points of an existing point cloud. |
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It is also possible to use the tools from the [[Image:Workbench_Draft.svg|24px]] [[Draft Workbench|Draft Workbench]] to connect the points using Draft objects such as [[Image:Draft_Line.svg|24px]] [[Draft Line|Lines]] and [[Image:Draft_BSpline.svg|24px]] [[Draft BSpline|Splines]]. Using the [[Image:Snap_Endpoint.svg|24px]] [[Draft Endpoint|Endpoint]] snapping method will ensure that the tools snap to the imported points. |
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* [[Image:Points_Import.svg|32px]] [[Points_Import|Import points...]]: Imports a point cloud from a file. |
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* [[Image:Points_Export.svg|32px]] [[Points_Export|Export points...]]: Exports a point cloud to a file. |
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== Limitations == |
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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. |
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* [[Image:Points_PolyCut.svg|32px]] [[Points_PolyCut|Cut point cloud]]: Cuts points from point clouds. |
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* [[Points Merge|Merge point clouds]]: Creates a point cloud by combining the points of two or more point clouds. |
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* [[Draft_Module|Draft]] commands such as [[Image:Draft_Line.svg|24px]] [[Draft_Line|Draft Line]] and [[Image:Draft_BSpline.svg|24px]] [[Draft_BSpline|Draft BSpline]] can be used to connect the points in a point cloud. Use [[Image:Draft_Endpoint.svg|24px]] [[Draft_Endpoint|Draft Endpoint]] to snap to the points. |
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See the discussions in the forum: |
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* [[Python]] can be used to analyze and process point clouds. See the following forum discussions: |
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* [http://forum.freecadweb.org/viewtopic.php?f= |
** [http://forum.freecadweb.org/viewtopic.php?f=3&t=16098 Inspecting Point cloud]. |
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* [http://forum.freecadweb.org/viewtopic.php?f= |
** [http://forum.freecadweb.org/viewtopic.php?f=13&t=15988 Fläche aus Messwerten] (German) |
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Revision as of 19:14, 23 August 2020
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
- Import Point Cloud: will import coordinates for 3D-points from a text file
- Export Point Cloud: will export coordinates for 3D-points to a text file
- Polygon Pick: to do
- Convert to points...: Creates point clouds from shape objects.
- Structured point cloud: Creates a sorted point cloud from the points of an existing point cloud.
- Import points...: Imports a point cloud from a file.
- Export points...: Exports a point cloud to a file.
- Cut point cloud: Cuts points from point clouds.
- Merge point clouds: Creates a point cloud by combining the points of two or more point clouds.
Notes
- Draft commands such as Draft Line and Draft BSpline can be used to connect the points in a point cloud. Use Draft Endpoint to snap to the points.
- Python can be used to analyze and process point clouds. See the following forum discussions:
- Inspecting Point cloud.
- Fläche aus Messwerten (German)
- Schnitte durch Flächen aus Messwerten (German)
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework
- Hubs: User hub, Power users hub, Developer hub