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geom/doc/salome/gui/GEOM/basic_geometrical_objects.htm
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<title>Basic Geometrical Objects</title>
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<h1>Basic Geometrical Objects</h1>
<h3><a name=bookmark>Creation of a Point</a></h3>
<p class="whs1">import geompy</p>
<p class="whs1">import salome</p>
<p class="whs1">gg = salome.ImportComponentGUI(&quot;GEOM&quot;)</p>
<p>&nbsp;</p>
<p># create vertices</p>
<p class="whs1">p0 = geompy.MakeVertex(0.,
0., 0.)</p>
<p class="whs1">p100 = geompy.MakeVertexWithRef(p0,
100., 100., 100.)</p>
<p class="whs1">px = geompy.MakeVertex(100.,
0., 0.)</p>
<p class="whs1">py = geompy.MakeVertex(0.,
100., 0.)</p>
<p class="whs1">pz = geompy.MakeVertex(0.,
0., 100.)</p>
<p>&nbsp;</p>
<p># create a curve and a vertex on it</p>
<p class="whs1">Arc = geompy.MakeArc(py,
pz, px)</p>
<p class="whs1">p_on_arc = geompy.MakeVertexOnCurve(Arc,
0.25)</p>
<p>&nbsp;</p>
<p># add objects in the study</p>
<p class="whs1">id_p0 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(p0, &nbsp;&nbsp;&quot;Vertex
0&quot;)</p>
<p class="whs1">id_p100 &nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(p100, &quot;Vertex 100&quot;)</p>
<p class="whs1">id_px &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(px, &nbsp;&nbsp;&quot;Vertex
X&quot;)</p>
<p class="whs1">id_py &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(py, &nbsp;&nbsp;&quot;Vertex
Y&quot;)</p>
<p class="whs1">id_pz &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(pz, &nbsp;&nbsp;&quot;Vertex
Z&quot;)</p>
<p class="whs1">id_Arc &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(Arc, &nbsp;&quot;Arc&quot;)</p>
<p class="whs1">id_p_on_arc = geompy.addToStudy(p_on_arc,
&quot;Vertex on Arc&quot;)</p>
<p>&nbsp;</p>
<p># display vertices</p>
<p class="whs1">gg.createAndDisplayGO(id_p0)</p>
<p class="whs1">gg.createAndDisplayGO(id_p100)</p>
<p class="whs1">gg.createAndDisplayGO(id_Arc)</p>
<p><span style="font-family: 'Lucida Console', monospace;">gg.createAndDisplayGO(id_p_on_arc)</span>
</p>
<p>&nbsp;</p>
<h3><a name=bookmark1>Creation of a Line</a></h3>
<p class="whs1">import geompy</p>
<p class="whs1">import salome</p>
<p class="whs1">gg = salome.ImportComponentGUI(&quot;GEOM&quot;)</p>
<p>&nbsp;</p>
<p># create vertices</p>
<p class="whs1">p0 = geompy.MakeVertex(0.,
0., 0.)</p>
<p class="whs1">p100 = geompy.MakeVertexWithRef(p0,
100., 100., 100.)</p>
<p class="whs1">px = geompy.MakeVertex(100.,
0. &nbsp;, 0.
&nbsp;)</p>
<p class="whs1">py = geompy.MakeVertex(0.
&nbsp;, 100.,
0. &nbsp;)</p>
<p class="whs1">pz = geompy.MakeVertex(0.
&nbsp;, 0. &nbsp;,
100.)</p>
<p>&nbsp;</p>
<p># create a vector from two points</p>
<p class="whs1">vxy &nbsp;=
geompy.MakeVector(px, py)</p>
<p>&nbsp;</p>
<p># create a line from a point and a vector</p>
<p class="whs1">line1 = geompy.MakeLine(pz,
vxy)</p>
<p>&nbsp;</p>
<p>#create a line from two points</p>
<p class="whs1">line2 = geompy.MakeLineTwoPnt(p0,
p100)</p>
<p>&nbsp;</p>
<p># add objects in the study</p>
<p class="whs1">id_vxy &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(vxy, &nbsp;&quot;Vector&quot;)</p>
<p class="whs1">id_line1 &nbsp;&nbsp;&nbsp;=
geompy.addToStudy(line1,&quot;Line1&quot;)</p>
<p class="whs1">id_line2 &nbsp;&nbsp;&nbsp;=
geompy.addToStudy(line2,&quot;Line2&quot;)</p>
<p>&nbsp;</p>
<p># display lines</p>
<p class="whs1">gg.createAndDisplayGO(id_vxy)</p>
<p class="whs1">gg.createAndDisplayGO(id_line1)</p>
<p><span style="font-family: 'Lucida Console', monospace;">gg.createAndDisplayGO(id_line2)</span>
</p>
<p>&nbsp;</p>
<h3><a name=bookmark2>Creation of &nbsp;a
Circle</a></h3>
<p class="whs1">import geompy</p>
<p class="whs1">import salome</p>
<p class="whs1">gg = salome.ImportComponentGUI(&quot;GEOM&quot;)</p>
<p>&nbsp;</p>
<p># create vertices</p>
<p class="whs1">p0 = geompy.MakeVertex(0.,
0., 0.)</p>
<p class="whs1">px = geompy.MakeVertex(100.,
0. &nbsp;, 0.
&nbsp;)</p>
<p class="whs1">py = geompy.MakeVertex(0.
&nbsp;, 100.,
0. &nbsp;)</p>
<p class="whs1">pz = geompy.MakeVertex(0.
&nbsp;, 0. &nbsp;,
100.)</p>
<p>&nbsp;</p>
<p># create a vector on two points</p>
<p class="whs1">vxy &nbsp;=
geompy.MakeVector(px, py)</p>
<p>&nbsp;</p>
<p># create a circle from a point, a vector and a radius</p>
<p class="whs1">circle1 = geompy.MakeCircle(pz,
vxy, 30)</p>
<p>&nbsp;</p>
<p>#create a circle from three points</p>
<p class="whs1">circle2 = geompy.MakeCircleThreePnt(p0,
px, py)</p>
<p>&nbsp;</p>
<p># add objects in the study</p>
<p class="whs1">id_vxy &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(vxy, &nbsp;&nbsp;&nbsp;&quot;Vector&quot;)</p>
<p class="whs1">id_circle1 &nbsp;=
geompy.addToStudy(circle1,&quot;Circle1&quot;)</p>
<p class="whs1">id_circle2 &nbsp;=
geompy.addToStudy(circle2,&quot;Circle2&quot;)</p>
<p>&nbsp;</p>
<p># display circles</p>
<p class="whs1">gg.createAndDisplayGO(id_vxy)</p>
<p class="whs1">gg.createAndDisplayGO(id_circle1)</p>
<p><span style="font-family: 'Lucida Console', monospace;">gg.createAndDisplayGO(id_circle2)</span>
</p>
<p>&nbsp;</p>
<h3><a name=bookmark3>Creation of an Ellipse</a></h3>
<p class="whs1">import geompy</p>
<p class="whs1">import salome</p>
<p class="whs1">gg = salome.ImportComponentGUI(&quot;GEOM&quot;)</p>
<p>&nbsp;</p>
<p># create vertices</p>
<p class="whs1">p0 = geompy.MakeVertex(0.,
0., 0.)</p>
<p class="whs1">p50 = geompy.MakeVertex(50.,
50., 50.)</p>
<p>&nbsp;</p>
<p># create a vector from two points</p>
<p class="whs1">vector &nbsp;=
geompy.MakeVector(p0, p50)</p>
<p>&nbsp;</p>
<p># create an ellipse from a point, a vector and radiuses</p>
<p class="whs1">ellipse = geompy.MakeEllipse(p50,
vector, 50, 25)</p>
<p>&nbsp;</p>
<p># add objects in the study</p>
<p class="whs1">id_vector &nbsp;=
geompy.addToStudy(vector, &quot;Vector&quot;)</p>
<p class="whs1">id_ellipse = geompy.addToStudy(ellipse,&quot;Ellipse&quot;)</p>
<p>&nbsp;</p>
<p># display the ellipse and its normal vector</p>
<p class="whs1">gg.createAndDisplayGO(id_vector)</p>
<p><span style="font-family: 'Lucida Console', monospace;">gg.createAndDisplayGO(id_ellipse)</span>
</p>
<p>&nbsp;</p>
<h3><a name=bookmark4>Creation of a Curve</a></h3>
<p class="whs1">import geompy</p>
<p class="whs1">import salome</p>
<p class="whs1">gg = salome.ImportComponentGUI(&quot;GEOM&quot;)</p>
<p>&nbsp;</p>
<p># create vertices</p>
<p class="whs1">p0 = geompy.MakeVertex(0.
&nbsp;, 0. &nbsp;,
0. &nbsp;)</p>
<p class="whs1">p1 = geompy.MakeVertex(50.
, 100., 200.)</p>
<p class="whs1">p2 = geompy.MakeVertex(150.,
&nbsp;50., 100.)</p>
<p class="whs1">p3 = geompy.MakeVertex(100.,
150., 170.)</p>
<p class="whs1">p4 = geompy.MakeVertex(200.,
200., 150.)</p>
<p>&nbsp;</p>
<p># create a polyline from a list of points</p>
<p class="whs1">polyline = geompy.MakePolyline([p0,
p1, p2, p3, p4])</p>
<p>&nbsp;</p>
<p># create a bezier curve from a list of points</p>
<p class="whs1">bezier = geompy.MakeBezier([p0,
p1, p2, p3, p4])</p>
<p>&nbsp;</p>
<p>#create a b-spline curve from a list of points</p>
<p class="whs1">interpol = geompy.MakeInterpol([p0,
p1, p2, p3, p4])</p>
<p>&nbsp;</p>
<p># add objects in the study</p>
<p class="whs1">id_p0 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(p0, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&quot;Point1&quot;)</p>
<p class="whs1">id_p1 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(p1, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&quot;Point2&quot;)</p>
<p class="whs1">id_p2 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(p2, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&quot;Point3&quot;)</p>
<p class="whs1">id_p3 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(p3, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&quot;Point4&quot;)</p>
<p class="whs1">id_p4 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(p4, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&quot;Point5&quot;)</p>
<p class="whs1">id_polyline = geompy.addToStudy(polyline,
&quot;Polyline&quot;)</p>
<p class="whs1">id_bezier &nbsp;&nbsp;=
geompy.addToStudy(bezier, &nbsp;&nbsp;&quot;Bezier&quot;)</p>
<p class="whs1">id_interpol = geompy.addToStudy(interpol,
&quot;Interpol&quot;)</p>
<p class="whs1">&nbsp;</p>
<p># display the points and the curves</p>
<p class="whs1">gg.createAndDisplayGO(id_p0)</p>
<p class="whs1">gg.createAndDisplayGO(id_p1)</p>
<p class="whs1">gg.createAndDisplayGO(id_p2)</p>
<p class="whs1">gg.createAndDisplayGO(id_p3)</p>
<p class="whs1">gg.createAndDisplayGO(id_p4)</p>
<p class="whs1">gg.createAndDisplayGO(id_polyline)</p>
<p class="whs1">gg.createAndDisplayGO(id_bezier)</p>
<p><span style="font-family: 'Lucida Console', monospace;">gg.createAndDisplayGO(id_interpol)</span>
</p>
<p>&nbsp;</p>
<h3><a name=bookmark5>Creation of a Vector</a></h3>
<p class="whs1">import geompy</p>
<p class="whs1">import salome</p>
<p class="whs1">gg = salome.ImportComponentGUI(&quot;GEOM&quot;)</p>
<p>&nbsp;</p>
<p># create vertices</p>
<p class="whs1">p1 = geompy.MakeVertex(10.,
50., 20.)</p>
<p class="whs1">p2 = geompy.MakeVertex(70.,
70., 70.)</p>
<p>&nbsp;</p>
<p># create a vector from two points</p>
<p class="whs1">vector1 = geompy.MakeVector(p1,
p2)</p>
<p>&nbsp;</p>
<p># create a vector from the given components</p>
<p class="whs1">vector2 = geompy.MakeVectorDXDYDZ(30,
30, 100)</p>
<p>&nbsp;</p>
<p># add objects in the study</p>
<p class="whs1">id_p1 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(p1, &nbsp;&nbsp;&nbsp;&nbsp;&quot;Point1&quot;)</p>
<p class="whs1">id_p2 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
geompy.addToStudy(p2, &nbsp;&nbsp;&nbsp;&nbsp;&quot;Point2&quot;)</p>
<p class="whs1">id_vector1 = geompy.addToStudy(vector1,&quot;Vector1&quot;)</p>
<p class="whs1">id_vector2 = geompy.addToStudy(vector2,&quot;Vector2&quot;)</p>
<p>&nbsp;</p>
<p># display the points and the vectors</p>
<p class="whs1">gg.createAndDisplayGO(id_p1)</p>
<p class="whs1">gg.createAndDisplayGO(id_p2)</p>
<p class="whs1">gg.createAndDisplayGO(id_vector1)</p>
<p><span style="font-family: 'Lucida Console', monospace;">gg.createAndDisplayGO(id_vector2)</span>
</p>
<p>&nbsp;</p>
<h3><a name=bookmark6>Creation of a Plane</a></h3>
<p class="whs1">import geompy</p>
<p class="whs1">import salome</p>
<p class="whs1">gg = salome.ImportComponentGUI(&quot;GEOM&quot;)</p>
<p>&nbsp;</p>
<p># create vertices</p>
<p class="whs1">p1 = geompy.MakeVertex(
&nbsp;0., &nbsp;&nbsp;0.,
100.)</p>
<p class="whs1">p2 = geompy.MakeVertex(100.,
&nbsp;&nbsp;0.,
&nbsp;&nbsp;0.)</p>
<p class="whs1">p3 = geompy.MakeVertex(200.,
200., 200.)</p>
<p class="whs1">p4 = geompy.MakeVertex(100.,
100., &nbsp;&nbsp;0.)</p>
<p class="whs1">p5 = geompy.MakeVertex(0.
&nbsp;, 100.,
&nbsp;&nbsp;0.)</p>
<p>&nbsp;</p>
<p># create a vector from the given components</p>
<p class="whs1">vector = geompy.MakeVectorDXDYDZ(100.,
100., 100.)</p>
<p>&nbsp;</p>
<p># create a vector from two points</p>
<p class="whs1">vector_arc = geompy.MakeVector(p2,
p5)</p>
<p>&nbsp;</p>
<p># create an arc from three points</p>
<p class="whs1">arc = geompy.MakeArc(p2,
p4, p5)</p>
<p>&nbsp;</p>
<p># create a wire</p>
<p class="whs1">wire = geompy.MakeWire([vector_arc,
arc])</p>
<p>&nbsp;</p>
<p># create a face</p>
<p class="whs1">isPlanarWanted = 1</p>
<p class="whs1">face = geompy.MakeFace(wire,
isPlanarWanted)</p>
<p class="whs1">trimsize = 1000.</p>
<p>&nbsp;</p>
<p># create a plane from a point, a vector and a trimsize</p>
<p class="whs1">plane1 = geompy.MakePlane(p1,
vector, trimsize)</p>
<p>&nbsp;</p>
<p># create a plane from three points and a trimsize</p>
<p class="whs1">plane2 = geompy.MakePlaneThreePnt(p1,
p2, p3, trimsize)</p>
<p>&nbsp;</p>
<p># create a plane from the given face</p>
<p class="whs1">plane3 = geompy.MakePlaneFace(face,
trimsize)</p>
<p>&nbsp;</p>
<p># add objects in the study</p>
<p class="whs1">id_face &nbsp;&nbsp;=
geompy.addToStudy(face, &nbsp;&quot;Face&quot;)</p>
<p class="whs1">id_plane1 = geompy.addToStudy(plane1,&quot;Plane1&quot;)</p>
<p class="whs1">id_plane2 = geompy.addToStudy(plane2,&quot;Plane2&quot;)</p>
<p class="whs1">id_plane3 = geompy.addToStudy(plane3,&quot;Plane3&quot;)</p>
<p>&nbsp;</p>
<p># display the points and the vectors</p>
<p class="whs1">gg.createAndDisplayGO(id_face)</p>
<p class="whs1">gg.createAndDisplayGO(id_plane1)</p>
<p class="whs1">gg.createAndDisplayGO(id_plane2)</p>
<p class="whs1">gg.createAndDisplayGO(id_plane3)</p>
<p class="whs1">gg.setDisplayMode(id_plane1,1)</p>
<p class="whs1">gg.setTransparency(id_plane1,0.5)</p>
<p class="whs1">gg.setDisplayMode(id_plane2,1)</p>
<p class="whs1">gg.setTransparency(id_plane2,0.5)</p>
<p class="whs1">gg.setDisplayMode(id_plane3,1)</p>
<p><span style="font-family: 'Lucida Console', monospace;">gg.setTransparency(id_plane3,0.5)</span>
</p>
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