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217 lines
7.5 KiB
HTML
Executable File
217 lines
7.5 KiB
HTML
Executable File
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<html>
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<title>Sketcher</title>
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<h1>Sketcher</h1>
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<p><span style="font-size: 12pt;"><font size=3 style="font-size:12pt;"><b style="font-weight: bold;"><img src="i_blue.jpg" x-maintain-ratio="TRUE" x-save-file="TRUE" x-save-method="compute-relative" width="30px" height="30px" border="0" class="img_whs1"></b></font></span>Sketcher allows to create curves of 2 types: line
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segment and arc. The
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curve is created from the current point (center of coordinates when the
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sketcher is started). The
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end of the curve is defined by means of "destination", which
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can be a destination point (for segment only) or destination direction
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coupled with length of a segment or angle and radius of an arc.</p>
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<p> </p>
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<p>Sketcher is able to create planar curves only. Therefore, it is necessary
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to select a working plane before starting a sketch (by default, XOY plane
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is used). Sketcher creates curves lying in the current working plane (New
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Entity -> Basic -> Working Plane).</p>
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<p> </p>
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<p>This functionality is available from the main menu via <span style="font-style: italic;"><I>New
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Entity / Sketch.</I></span></p>
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<p> </p>
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<p class="whs2"><b><span style="font-weight: normal;">T</span></b><b><span
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style="font-weight: normal;">he</span> Result <span style="font-weight: normal;">of
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the operation will be a</span></b><b> GEOM_Object</b>.</p>
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<p> </p>
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<p class="whs2"><b style="font-weight: bold;">TUI Command:</b><i>
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</i><span style="font-style: italic;"><I>geompy.MakeSketcher(Command, WorkingPlane)</I></span></p>
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<p class="whs3">This algorithm creates
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a sketcher (wire or face), following the textual description, passed through
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the Command argument. The edges of the resulting wire or face will be
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arcs of circles and/or linear segments.</p>
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<p class="whs3"><span style="font-style: italic;"><I>Command</I></span>
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is a string, defining the sketcher by the coordinates of points in the
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local working plane.</p>
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<p class="whs3"><span style="font-style: italic;"><I>WorkingPlane</I></span>
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is a planar face of the working plane (a list of 9 doubles which are coordinates
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of OZ and OX of the local working plane).</p>
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<p class="whs2"> </p>
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<p class="whs2"><b style="font-weight: bold;">Arguments:</b>
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</p>
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<p class="whs2"><span><font size=3 style="font-size:12pt;">1. Element type (segment or arc).</font></span></p>
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<p class="whs2">2. Destination type (point or direction).</p>
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<p class="whs2">3. <span>Destination point by means of:</span></p>
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<ul type="disc" class="whs4">
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<li class=kadov-p><p class="whs2">absolute coordinates
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X,Y;</p></li>
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<li class=kadov-p><p class="whs2">relative coordinates
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DX, DY (with respect to the current point);</p></li>
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<li class=kadov-p><p class="whs2">selection of an existing
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point.</p></li>
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</ul>
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<p class="whs2">4. Destination direction by means of:</p>
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<ul type="disc" class="whs4">
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<li class=kadov-p><p class="whs2">angle between the new
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segment and the previous one;</p></li>
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<li class=kadov-p><p class="whs2">perpendicular to the
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previous segment (same as previous, but angle is predefined and is equal
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to 90 degrees);</p></li>
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<li class=kadov-p><p class="whs2">tangent to the previous
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segment;</p></li>
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<li class=kadov-p><p class="whs2">vector components DX,
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DY.</p></li>
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</ul>
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<p class="whs2">5. Parameters of an element (for segment :
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length or target X or Y coordinate value, for arc : radius and angle).</p>
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<p class="whs2"> </p>
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<p class="whs2"><b style="font-weight: bold;">Dialog Box:</b></p>
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<p class="whs2"> </p>
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<p class="whs5"><img src="pics/neo-scetcher1.png" x-maintain-ratio="TRUE" width="321px" height="496px" border="0" class="img_whs6"> <img src="pics/neo-scetcher2.png" x-maintain-ratio="TRUE" width="321px" height="496px" border="0" class="img_whs6"></p>
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<p class="whs7"> </p>
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<p class="whs8">Example:</p>
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<p class="whs9"> </p>
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<p class="whs9"><img src="image204.jpg" width="200px" height="200px" border="0" class="img_whs10"> <img src="image206.jpg" width="200px" height="200px" border="0" class="img_whs10"></p>
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<p class="whs9"> </p>
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<p class="whs2">Our <span style="font-weight: bold;"><B>TUI Scripts</B></span>
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provide you with useful examples of the use of <a href="sketcher_tui.htm">Sketcher</a>.
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</p>
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<p> </p>
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