2007-02-07 16:23:40 +05:00
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2007-04-18 21:44:19 +06:00
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2007-02-07 16:23:40 +05:00
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2007-04-18 21:44:19 +06:00
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2007-02-07 16:23:40 +05:00
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<h1><b style="font-weight: bold;"><span style="font-size: 14pt;"><font size=4 style="font-size:14pt;"><img src="files/salome2_sp3_basicgui_functions_salome2_sp3_basicgui_functions_image31.gif" width="20px" height="20px" border="0" class="img_whs1"> </font></span></b>Arc</h1>
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<p><b><span style="font-weight: normal;">T</b>o</span> create an <span
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style="font-weight: bold;"><B>Arc</B></span> in the <span style="font-weight: bold;"><B>Main
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Menu</B></span> select <span style="font-weight: bold;"><B>New Entity - >
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Basic - > Arc</B></span></p>
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<p class="whs2"> </p>
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2007-04-18 21:44:19 +06:00
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<p class="whs3"><b style="font-weight: bold;"><span
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style="font-weight: normal;">There are 2 algorithms to create an </span><span
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style="font-weight: bold;"><B>Arc</B></span><span style="font-weight: normal;">
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in the 3D space. </span></b></p>
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2007-02-07 16:23:40 +05:00
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2007-04-18 21:44:19 +06:00
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<p class="whs2"><b><span style="font-weight: normal;">The Result
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of each operation will be a</span></b><b> <span style="font-weight: normal;">GEOM_Object
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(edge).</span></b></p>
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2007-02-07 16:23:40 +05:00
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<p class="whs2"> </p>
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2007-04-18 21:44:19 +06:00
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<p class="whs2"><b style="font-weight: bold;"><span style="font-weight: normal;">Firstly,
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you can define an</span> Arc <span style="font-weight: normal;">by</span>
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<span style="font-weight: normal;">three</span><span style="font-weight: bold;"><B>
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Points </B></span><span style="font-weight: normal;">that lie on it, where
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</span></b>Point1
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is the starting point, Point2
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is a middle point of the arc and Point3
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is the ending point of the arc.</p>
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<p class="whs2"><b style="font-weight: bold;">TUI
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Command:</b> <span style="font-style: italic;"><I>geompy.MakeArc(Point1,
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Point2, Point3)</I></span></p>
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<p class="whs2"><b style="font-weight: bold;">Arguments:</b>
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Name + 3 vertices.</p>
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<p class="whs2"> </p>
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2007-04-18 21:44:19 +06:00
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<p class="whs4"><img src="pics/arc.png" x-maintain-ratio="TRUE" width="312px" height="359px" border="0" class="img_whs5"></p>
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2007-02-07 16:23:40 +05:00
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2007-04-18 21:44:19 +06:00
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<p class="whs6"> </p>
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2007-02-07 16:23:40 +05:00
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2007-04-18 21:44:19 +06:00
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<p class="whs7"><b style="font-weight: normal;">Secondly,
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you can define an <span style="font-weight: bold;"><B>Arc</B></span> by </b><span
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style="font-weight: bold;"><B>Center, Start</B></span> and <span style="font-weight: bold;"><B>End</B></span>
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points. The arc is built from the <span style="font-weight: bold;"><B>Start</B></span>
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point to the <span style="font-weight: bold;"><B>End</B></span> point. The radius
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of the arc is defined by the distance between the <span style="font-weight: bold;"><B>Center</B></span>
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point and the <span style="font-weight: bold;"><B>Start</B></span> point. The
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<span style="font-weight: bold;"><B>End</B></span> point defines the angle of
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the arc. If the distance between the <span style="font-weight: bold;"><B>Center</B></span>
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point and the <span style="font-weight: bold;"><B>End</B></span> point is not
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equal to the radius, the arc will be built anyway.</p>
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2007-02-07 16:23:40 +05:00
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2007-04-18 21:44:19 +06:00
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<p class="whs7"><span style="font-weight: bold;"><B>Reverse</B></span>
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radio button allows to change the direction of the arc.</p>
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2007-02-07 16:23:40 +05:00
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2007-04-18 21:44:19 +06:00
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<p class="whs7"><b style="font-weight: bold;">TUI Command:</b>
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<span style="font-style: italic;"><I>geompy.MakeArcCenter(Center Point, Start
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Point, End Point, boolean Sense)</I></span></p>
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<p class="whs7"><span style="font-style: italic;"><I><b
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style="font-weight: bold;">A</I></span>rguments:</b> Name + 3 vertices + Boolean.</p>
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<p class="whs7"> </p>
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2007-04-18 21:44:19 +06:00
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<p class="whs4"><img src="pics/arc2.png" x-maintain-ratio="TRUE" width="400px" height="385px" border="0" class="img_whs8"></p>
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<p class="whs9"> </p>
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<p class="whs9"><b style="font-weight: bold;">Example:</b></p>
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<p class="whs9"> </p>
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<table x-use-null-cells cellspacing="0" width="86.687%" class="whs10">
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<col class="whs11">
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<col class="whs13">
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<tr valign="top" class="whs14">
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<td width="38.452%" class="whs15">
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<p>Arc by three points lying on it.</td>
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<td width="28.09%" class="whs16">
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<p>Arc by Start, End and Center.</td>
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<td colspan="1" rowspan="1" width="16.729%" class="whs17">
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<p> </td>
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<td width="16.729%" class="whs17">
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<p>Reversed arc.</td></tr>
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<tr valign="top" class="whs14">
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<td width="38.452%" class="whs18">
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<p class="whs6"><img src="pics/arcsn.png" x-maintain-ratio="TRUE" width="316px" height="270px" border="0" class="img_whs19"></td>
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<td width="28.09%" class="whs20">
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<p><img src="pics/arcsn1.png" x-maintain-ratio="TRUE" width="212px" height="270px" border="0" class="img_whs21"></td>
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<td colspan="1" rowspan="1" width="16.729%" class="whs22">
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<table x-use-null-cells cellspacing="0" width="100%" class="whs23">
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<col class="whs24">
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<tr valign="top" class="whs25">
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<td width="100%" class="whs26">
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<p class="whs27">Start Point</td></tr>
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<tr valign="top" class="whs28">
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<td width="100%" class="whs29">
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<p> </td></tr>
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<tr valign="top" class="whs30">
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<td width="100%" class="whs29">
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<p> </td></tr>
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<tr valign="top" class="whs25">
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<td width="100%" class="whs29">
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<p>Center Point</td></tr>
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<tr valign="top" class="whs31">
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<td width="100%" class="whs29">
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<p> </td></tr>
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<tr valign="top" class="whs25">
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<td width="100%" class="whs32">
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<p>End Point</td></tr>
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</table>
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<p class="whs33"> </p>
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<p> </td>
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<td width="16.729%" class="whs22">
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<p><img src="pics/arcsn2.png" x-maintain-ratio="TRUE" width="318px" height="269px" border="0" class="img_whs34"></td></tr>
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</table>
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<p class="whs35"> </p>
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2007-02-07 16:23:40 +05:00
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<p class="whs2">Our TUI Scripts provide you with useful examples
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of creation of <a href="basic_geometrical_objects.htm">Basic Geometric
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Objects</a>. </p>
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<p> </p>
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<script type="text/javascript" language="javascript1.2">
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<!--
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if (window.writeIntopicBar)
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writeIntopicBar(0);
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//-->
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</script>
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</body>
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</html>
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