94 lines
8.6 KiB
HTML
94 lines
8.6 KiB
HTML
<html><head><title>Constraint Length/sv</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><link type='text/css' href='wiki.css' rel='stylesheet'></head><body><h1>Constraint Length/sv</h1></div>
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<div id="mw-content-text" lang="sv" 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="Constraint_Length"><a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_Length.png" class="image"><img alt="Constraint Length.png" src="32px-Constraint_Length.png" width="32" height="32" srcset="/wiki/images/thumb/a/a3/Constraint_Length.png/48px-Constraint_Length.png 1.5x, /wiki/images/a/a3/Constraint_Length.png 2x" /></a> Constraint Length</span></h3>
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</td></tr>
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<tr>
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<th class="ctOdd">Menyplacering
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</th></tr>
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<tr>
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<td class="ctEven">Sketch → Sketcher constraints → Constrain distance
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</td></tr>
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<tr>
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<th class="ctOdd">Arbetsbänk(ar)
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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=Sketcher_Workbench/sv" title="Sketcher Workbench/sv">Sketcher</a>, <a href="https://www.freecadweb.org/wiki/index.php?title=PartDesign_Workbench/sv" title="PartDesign Workbench/sv">PartDesign</a>
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</td></tr>
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<tr>
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<th class="ctOdd">Standard genväg
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</th></tr>
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<td class="ctEven">None
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</td></tr>
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<tr>
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<th class="ctOdd">Se även
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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=Constraint_HorizontalDistance/sv" title="Constraint HorizontalDistance/sv">Constraint HorizontalDistance</a>, <a href="https://www.freecadweb.org/wiki/index.php?title=Constraint_VerticalDistance/sv" title="Constraint VerticalDistance/sv">Constraint VerticalDistance</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="#Constraint_Length"><span class="tocnumber">1</span> <span class="toctext">Constraint Length</span></a>
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<ul>
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<li class="toclevel-2 tocsection-1"><a href="#Description"><span class="tocnumber">1.1</span> <span class="toctext">Description</span></a></li>
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<li class="toclevel-2 tocsection-2"><a href="#Hint"><span class="tocnumber">1.2</span> <span class="toctext">Hint</span></a></li>
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<li class="toclevel-2 tocsection-3"><a href="#Operation"><span class="tocnumber">1.3</span> <span class="toctext">Operation</span></a></li>
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</ul>
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</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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<h4><span class="mw-headline" id="Description">Description</span></h4>
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<p>Constraint Length constrains the length of a line, the perpendicular distance between a point and a line or the distance between two points to have a specified value.
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</p>
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<h4><span class="mw-headline" id="Hint">Hint</span></h4>
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<p>If applicable please consider using the <a href="Constraint_HorizontalDistance.html" title="Constraint HorizontalDistance">Horizontal Distance</a> or <a href="Constraint_VerticalDistance.html" title="Constraint VerticalDistance">Vertical Distance</a> constraints instead. These constraints are more robust and faster to calculate than the here documented length constraint.
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</p>
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<h4><span class="mw-headline" id="Operation">Operation</span></h4>
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<p>Select a line in the sketch,<br />
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<a href="https://www.freecadweb.org/wiki/index.php?title=File:LengthConstraint1.png" class="image"><img alt="LengthConstraint1.png" src="256px-LengthConstraint1.png" width="256" height="184" srcset="/wiki/images/thumb/4/49/LengthConstraint1.png/384px-LengthConstraint1.png 1.5x, /wiki/images/4/49/LengthConstraint1.png 2x" /></a><br />
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by clicking on the line (it turns dark green).<br />
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<a href="https://www.freecadweb.org/wiki/index.php?title=File:LengthConstraint2.png" class="image"><img alt="LengthConstraint2.png" src="256px-LengthConstraint2.png" width="256" height="184" srcset="/wiki/images/thumb/e/e1/LengthConstraint2.png/384px-LengthConstraint2.png 1.5x, /wiki/images/e/e1/LengthConstraint2.png 2x" /></a><br />
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Apply the Length Constraint by selecting the icon <a href="https://www.freecadweb.org/wiki/index.php?title=File:Constraint_Length.png" class="image"><img alt="Constraint Length.png" src="16px-Constraint_Length.png" width="16" height="16" srcset="/wiki/images/thumb/a/a3/Constraint_Length.png/24px-Constraint_Length.png 1.5x, 32px-Constraint_Length.png 2x" /></a> from the Sketcher Constraints toolbar or selecting the Constrain distance menu item from the Sketcher Constraints sub-menu of the Sketcher menu item in the Sketcher workbench (or Part Design in the Part Design workbench).<br />
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<a href="https://www.freecadweb.org/wiki/index.php?title=File:LengthConstraint3.png" class="image"><img alt="LengthConstraint3.png" src="256px-LengthConstraint3.png" width="256" height="184" srcset="/wiki/images/thumb/5/50/LengthConstraint3.png/384px-LengthConstraint3.png 1.5x, /wiki/images/5/50/LengthConstraint3.png 2x" /></a><br />
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The length of the line is constrained to its current value.Double clicking on the constraint in the 3D view or in the Tasks tab of the Combo View will bring up a dialog box to allow the constraint value to be edited.<br />
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<a href="https://www.freecadweb.org/wiki/index.php?title=File:LengthConstraint4.png" class="image"><img alt="LengthConstraint4.png" src="256px-LengthConstraint4.png" width="256" height="184" srcset="/wiki/images/thumb/4/41/LengthConstraint4.png/384px-LengthConstraint4.png 1.5x, /wiki/images/4/41/LengthConstraint4.png 2x" /></a><br />
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Enter the required value and click OK to set the constraint length.<br />
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<a href="https://www.freecadweb.org/wiki/index.php?title=File:LengthConstraint5.png" class="image"><img alt="LengthConstraint5.png" src="256px-LengthConstraint5.png" width="256" height="184" srcset="/wiki/images/thumb/f/fa/LengthConstraint5.png/384px-LengthConstraint5.png 1.5x, /wiki/images/f/fa/LengthConstraint5.png 2x" /></a><br />
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The Length Constraint also constrains the distance between a line and a point.<br />
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<a href="https://www.freecadweb.org/wiki/index.php?title=File:LengthConstraint6.png" class="image"><img alt="LengthConstraint6.png" src="256px-LengthConstraint6.png" width="256" height="184" srcset="/wiki/images/thumb/7/76/LengthConstraint6.png/384px-LengthConstraint6.png 1.5x, /wiki/images/7/76/LengthConstraint6.png 2x" /></a><br />
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Select the line and a point in the sketch,<br />
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<a href="https://www.freecadweb.org/wiki/index.php?title=File:LengthConstraint7.png" class="image"><img alt="LengthConstraint7.png" src="256px-LengthConstraint7.png" width="256" height="184" srcset="/wiki/images/thumb/4/40/LengthConstraint7.png/384px-LengthConstraint7.png 1.5x, /wiki/images/thumb/4/40/LengthConstraint7.png/512px-LengthConstraint7.png 2x" /></a><br />
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then apply the constraint as before.<br />
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The perpendicular distance between the point and the line is constrained to its current value. this may be edited as described above to set the constraint to a desired value.<br />
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<a href="https://www.freecadweb.org/wiki/index.php?title=File:LengthConstraint8.png" class="image"><img alt="LengthConstraint8.png" src="256px-LengthConstraint8.png" width="256" height="184" srcset="/wiki/images/thumb/d/d5/LengthConstraint8.png/384px-LengthConstraint8.png 1.5x, /wiki/images/d/d5/LengthConstraint8.png 2x" /></a><br />
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The constraint may also be applied to two points, selected here at either end of a poly-line.<br />
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<a href="https://www.freecadweb.org/wiki/index.php?title=File:LengthConstraint9.png" class="image"><img alt="LengthConstraint9.png" src="256px-LengthConstraint9.png" width="256" height="184" srcset="/wiki/images/thumb/9/98/LengthConstraint9.png/384px-LengthConstraint9.png 1.5x, /wiki/images/9/98/LengthConstraint9.png 2x" /></a><br />
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Applying the constraint as before, the distance between the two selected points is constrained. As described above it may be edited to set a desired value.<br />
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<a href="https://www.freecadweb.org/wiki/index.php?title=File:LengthConstraint10.png" class="image"><img alt="LengthConstraint10.png" src="256px-LengthConstraint10.png" width="256" height="184" srcset="/wiki/images/thumb/5/59/LengthConstraint10.png/384px-LengthConstraint10.png 1.5x, /wiki/images/5/59/LengthConstraint10.png 2x" /></a><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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</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=Constraint_Length/sv&oldid=95248">http://www.freecadweb.org/wiki/index.php?title=Constraint_Length/sv&oldid=95248</a>"</div>
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<h2>Navigation menu</h2>
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