131 lines
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131 lines
10 KiB
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<html><head><title>Draft PathArray/tr</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><link type='text/css' href='wiki.css' rel='stylesheet'></head><body><h1>Draft PathArray/tr</h1></div>
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<div id="mw-content-text" lang="tr" dir="ltr" class="mw-content-ltr"><hr/><div class="mw-parser-output"><table class="fcinfobox wikitable ct" >
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<tr>
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<td class="ctTitle">
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<h3><span class="mw-headline" id="Draft_PathArray"><a href="https://www.freecadweb.org/wiki/index.php?title=File:Draft_PathArray.png" class="image"><img alt="Draft PathArray.png" src="32px-Draft_PathArray.png" width="32" height="32" srcset="/wiki/images/thumb/c/c1/Draft_PathArray.png/48px-Draft_PathArray.png 1.5x, /wiki/images/c/c1/Draft_PathArray.png 2x" /></a> Draft PathArray</span></h3>
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</td></tr>
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<tr>
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<th class="ctOdd">Menü konumu
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</th></tr>
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<tr>
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<td class="ctEven">Draft → PathArray
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</td></tr>
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<tr>
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<th class="ctOdd">Workbenches
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</th></tr>
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<tr>
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<td class="ctEven"><a href="https://www.freecadweb.org/wiki/index.php?title=Draft_Module/tr" title="Draft Module/tr">Draft</a>, <a href="https://www.freecadweb.org/wiki/index.php?title=Arch_Module/tr" title="Arch Module/tr">Arch</a>
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</td></tr>
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<tr>
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<th class="ctOdd">Varsayılan kısayol
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</th></tr>
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<tr>
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<td class="ctEven">Hiçbiri
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</td></tr>
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<tr>
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<th class="ctOdd">Ayrıca bkz
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</th></tr>
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<tr>
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<td class="ctEven"><a href="https://www.freecadweb.org/wiki/index.php?title=Draft_Array/tr" title="Draft Array/tr">Draft Array</a>
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</td></tr>
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<tr>
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<td class="ctToc"><br /><div id="toc" class="toc"><div class="toctitle"><h2>Contents</h2></div>
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<ul>
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<li class="toclevel-1"><a href="Draft_PathArray.html"><span class="tocnumber">1</span> <span class="toctext">Draft PathArray</span></a></li>
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<li class="toclevel-1 tocsection-1"><a href="#Description"><span class="tocnumber">2</span> <span class="toctext">Description</span></a></li>
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<li class="toclevel-1 tocsection-2"><a href="#How_to_use"><span class="tocnumber">3</span> <span class="toctext">How to use</span></a></li>
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<li class="toclevel-1 tocsection-3"><a href="#Options"><span class="tocnumber">4</span> <span class="toctext">Options</span></a></li>
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<li class="toclevel-1 tocsection-4"><a href="#Properties"><span class="tocnumber">5</span> <span class="toctext">Properties</span></a></li>
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<li class="toclevel-1 tocsection-5"><a href="#Scripting"><span class="tocnumber">6</span> <span class="toctext">Scripting</span></a></li>
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<li class="toclevel-1 tocsection-6"><a href="#Usage_Notes"><span class="tocnumber">7</span> <span class="toctext">Usage Notes</span></a></li>
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<li class="toclevel-1 tocsection-7"><a href="#Limitations"><span class="tocnumber">8</span> <span class="toctext">Limitations</span></a></li>
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<li class="toclevel-1 tocsection-8"><a href="#Technical_Explanation"><span class="tocnumber">9</span> <span class="toctext">Technical Explanation</span></a></li>
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</ul>
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</div>
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</td></tr></table>
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<p><br />
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</p>
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<h2><span class="mw-headline" id="Description">Description</span></h2>
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<p>The PathArray tool places copies of a selected shape along a selected path. The path can be a Wire or one or more Edges. The shapes can optionally be aligned with the tangent of the path. If required, a translation Vector can be specified to shift the shapes so the centroid is on the path. If no objects are selected, you will be invited to select them.
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</p><p><a href="https://www.freecadweb.org/wiki/index.php?title=File:Draft_PathArray_Example.png" class="image"><img alt="Draft PathArray Example.png" src="Draft_PathArray_Example.png" width="400" height="235" /></a>
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</p>
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<h2><span class="mw-headline" id="How_to_use">How to use</span></h2>
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<ol><li> Select a shape object you wish to distribute.</li>
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<li> Select a path object along which the shapes will be distributed. -or-</li>
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<li> Select some edges of a path object.</li>
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<li> Press the <span style="background: #DDDDDD; border: 1px solid #888888; padding: 0px 5px 1px 5px;"><a href="https://www.freecadweb.org/wiki/index.php?title=File:Draft_PathArray.png" class="image"><img alt="Draft PathArray.png" src="16px-Draft_PathArray.png" width="16" height="16" srcset="/wiki/images/thumb/c/c1/Draft_PathArray.png/24px-Draft_PathArray.png 1.5x, 32px-Draft_PathArray.png 2x" /></a> <a href="Draft_PathArray.html" title="Draft PathArray">Draft PathArray</a></span> button.</li></ol>
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<h2><span class="mw-headline" id="Options">Options</span></h2>
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<ul><li> The array starts with shape copies which are not aligned to the path, nor translated to a new position by default. You can then change the count, alignment and/or translation vector in the properties.</li></ul>
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<h2><span class="mw-headline" id="Properties">Properties</span></h2>
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<ul><li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Base</b>: The shape object</li>
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<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>PathObj</b>: The path object</li>
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<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>PathSubs</b>: The subelements(edges) of path object to be used as the path</li>
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<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Count</b>: The number of time to copy the shape</li>
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<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Xlate</b>: The translation vector</li>
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<li> <span style="font-size: 0.6em;padding-right:10px;">DATA</span><b>Align</b>: True to align the shapes to the path, False to leave shapes in their default orientation.</li></ul>
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<h2><span class="mw-headline" id="Scripting">Scripting</span></h2>
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<p>The PathArray tool can by used in <a href="Macros.html" title="Macros">macros</a> and from the python console by using the following function:
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</p>
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<pre>makePathArray(shapeobject,pathobject,count,[translationvector],[alignment],[listofpathsubelements]) </pre>
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<ul><li> Distribute count copies of a document shapeobject along a pathobject or subobjects of a pathobject. Optionally translates each copy by FreeCAD.Vector xlate direction and distance to adjust for difference in shape centre vs shape reference point. Optionally aligns baseobject to tangent/normal/binormal of path.</li></ul>
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<p>Example:
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</p>
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<pre>import FreeCAD,Draft
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Draft.makePathArray(base,path,items,centretrans,orient,pathsubs) </pre>
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<h2><span class="mw-headline" id="Usage_Notes">Usage Notes</span></h2>
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<ul><li> Align + Xlate: When Align is True, the Xlate vector is relative to the local (tangent/normal/binormal) coordinates. When Align is False, the Xlate vector is relative to the global (XYZ) coordinates. </li></ul>
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<h2><span class="mw-headline" id="Limitations">Limitations</span></h2>
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<ul><li> This tool is not available before version 0.14</li>
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<li> The PathSubs Property does not yet appear in the properties list.</li></ul>
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<h2><span class="mw-headline" id="Technical_Explanation">Technical Explanation</span></h2>
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<p>When "Align = false", PathArray's logic is quite easy to understand.
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</p>
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<div class="floatleft"><a href="https://www.freecadweb.org/wiki/index.php?title=File:Patharray_NoAlign.png" class="image" title="Align false"><img alt="Align false" src="Patharray_NoAlign.png" width="600" height="483" /></a></div>
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<div style="clear:both"></div>
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<p><br />
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When "Align = true" the logic is a bit harder to grasp:
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</p>
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<ol><li> Construct Frenet coordinate systems on the path (X is tangent, Z is normal, Y is binormal).</li>
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<li> Copy the original object to every on-path coordinate system, so that the global origin is matched with the on-path coordinate system origin.</li></ol>
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<div class="floatleft"><a href="https://www.freecadweb.org/wiki/index.php?title=File:Patharray_alignment_annotated.png" class="image"><img alt="Patharray alignment annotated.png" src="600px-Patharray_alignment_annotated.png" width="600" height="325" srcset="/wiki/images/thumb/e/e1/Patharray_alignment_annotated.png/900px-Patharray_alignment_annotated.png 1.5x, /wiki/images/thumb/e/e1/Patharray_alignment_annotated.png/1200px-Patharray_alignment_annotated.png 2x" /></a></div>
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<div style="clear:both"></div>
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<p><br />
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It is much easier to understand with pictures. The following images show how the array is produced, depending on which plane is the path.
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</p>
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<div class="floatleft"><a href="https://www.freecadweb.org/wiki/index.php?title=File:Patharray_alignment.png" class="image" title="XY Plane"><img alt="XY Plane" src="600px-Patharray_alignment.png" width="600" height="325" srcset="/wiki/images/thumb/7/73/Patharray_alignment.png/900px-Patharray_alignment.png 1.5x, /wiki/images/thumb/7/73/Patharray_alignment.png/1200px-Patharray_alignment.png 2x" /></a></div>
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<div style="clear:both"></div>
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<p>Path on XY Plane
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<br />
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</p>
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<div class="floatleft"><a href="https://www.freecadweb.org/wiki/index.php?title=File:Patharray_alignment-XZ.png" class="image" title="XZ Plane"><img alt="XZ Plane" src="600px-Patharray_alignment-XZ.png" width="600" height="325" srcset="/wiki/images/thumb/c/c9/Patharray_alignment-XZ.png/900px-Patharray_alignment-XZ.png 1.5x, /wiki/images/thumb/c/c9/Patharray_alignment-XZ.png/1200px-Patharray_alignment-XZ.png 2x" /></a></div>
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<div style="clear:both"></div>
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<p>Path on XZ Plane
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<br />
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</p>
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<div class="floatleft"><a href="https://www.freecadweb.org/wiki/index.php?title=File:Patharray_alignment-YZ.png" class="image" title="YZ Plane"><img alt="YZ Plane" src="600px-Patharray_alignment-YZ.png" width="600" height="325" srcset="/wiki/images/thumb/7/73/Patharray_alignment-YZ.png/900px-Patharray_alignment-YZ.png 1.5x, /wiki/images/thumb/7/73/Patharray_alignment-YZ.png/1200px-Patharray_alignment-YZ.png 2x" /></a></div>
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<div style="clear:both"></div>
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<p>Path on YZ Plane
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<br />
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</p>
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<div style="clear:both"></div>
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<p><br />
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The clear advantage of this logic is that as you reorient the path but not the object, the result is consistent - object remains aligned to the path the way it was before reorienting the path.
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</p><p>(Thanks to @DeepSOIC for this explanation)
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</p>
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</div>
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</div>
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</div><div class="printfooter">
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Online version: "<a dir="ltr" href="https://www.freecadweb.org/wiki/index.php?title=Draft_PathArray/tr&oldid=208398">http://www.freecadweb.org/wiki/index.php?title=Draft_PathArray/tr&oldid=208398</a>"</div>
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<div id="catlinks" class="catlinks" data-mw="interface"></div><div class="visualClear"></div>
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</div>
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</div>
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<div id="mw-navigation">
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<h2>Navigation menu</h2>
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