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doc/salome/gui/GEOM/input/creating_sketcher.doc
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\page create_sketcher_page 2D Sketcher
The 2D Sketcher allows you to create a profile made of curves of 2 types: line segments and arcs.
The 2D Sketcher allows you to draw 2D shapes on a working plane. You can create on this plane:
<b>Example:</b>
<ul>
<li> A \b profile made of connected curves of 2 types: <b>line segments</b> and \b arcs.
\b or
<li> A \b rectangle
</ul>
The \b Result is a \b Wire
\n <b>Example:</b>
\image html sketch_example.png
To create a <b> 2D Sketch</b>:
<ol>
<li>In the main menu select <em>New Entity -> Basic -> 2D Sketch</em> or click on \image html sketch.png </li>
<li>In the main menu select <b>New Entity -> Basic -> 2D Sketch</b> or click on \image html sketch.png </li>
<li> Select the plane or the planar face on which to create the sketch. By default the sketch is created on the XOY plane of the global coordinate system.
If Local Coordinate systems have been created in the study they appear in the combobox and can be selected as reference coordinate system.</li>
<li> Select the \b plane or the <b>planar face</b> on which to create the sketch.
\note By default the sketch is created on the XOY plane of the global coordinate system.
If Local Coordinate Systems have been created in the study they appear in the combobox and can be selected as reference coordinate system.</li>
<li> Choose a \b segment or an \b arc element to start a \b profile or choose \b rectangle to draw a rectangle.
\n If you draw a \b profile:
<li> Select a start point. By default the start point of the curve is located at the point of
origin of the reference coordinate system and the curve lies in the
plane XOY.</li>
origin of the reference coordinate system.</li>
<li> Create curve portions and click on \b Apply after each step.</li>
<li> Select either \b Close or <b>Sketch Closure</b> if you want to close the profile before closing the window.</li>
</ol>
To create a \b Segment:
\n To create a \b Segment:
<ol>
<li> In the <b>Element Type</b> part of the dialog box select:
\image html line_icon.png </li>
<li> You can define the segment by either it's <b>end point</b> or a \b direction and a length. The direction is defined relatively to the tangent at the last point of the sketch. It can be:
- Tangent (colinear to the tangent at the last point)
- Perpendicular
- Defined by an angle
- Defined by a vector (Vx, Vy)
<li> You can define the segment by either it's <b>end point</b> or a \b direction and a \b length. The direction is defined relatively to the tangent at the last point of the sketch. It can be:
<ul>
<li> Tangent (colinear to the tangent at the last point)</li>
<li> Perpendicular</li>
<li> Defined by an angle</li>
<li> Defined by a vector (Vx, Vy)</li>
</ul>
</li>
</ol>
To create an \b Arc:
\n To create an \b Arc:
<ol>
<li> In the <b>Element Type</b> part of the dialog box select \image html arc_icon.png </li>
@ -71,10 +86,7 @@ To create an \b Arc:
</ol>
For the first segment or arc of the sketch the reference direction is the X direction of the reference coordinate system.
\n The Result of the operation will be a \b Wire.
\note For the first segment or arc of the sketch the reference direction is the X direction of the reference coordinate system.
\n <b>Dialog Box:</b>
@ -82,8 +94,9 @@ For the first segment or arc of the sketch the reference direction is the X dire
\n <b>Arguments:</b>
<ol>
<li>Coordinate system (Local or Global CS can be selected)</li>
<li>Element type (segment or arc).</li>
<li>Coordinate system (Existing Local CS or Global CS can be selected)</li>
<li>A plane or a planar face to define a new Local Coordinate System
<li>Element type (segment, arc or rectangle).</li>
<li>Destination type (point or direction).</li>
<li>Destination point by means of:</li>
<ul>
@ -105,9 +118,30 @@ is predefined and is equal to 90 degrees);</li>
\b Buttons:
<b>"Restore"</b> button orientates the viewer correspondingly to the chosen working plane and fits the scene to show all its objects.
\n <b>"Sketch Validation"</b> button applies the wire, only red part will be built by "Sketch Validation".
\n <b>"Close"</b> button applies the wire, only the red part will be built.
\n <b>"Sketch Closure"</b> will close the Sketch by straight line from last red part and apply it.
\n To draw a \b rectangle:
<ol>
<li> In the <b>Element Type</b> part of the dialog box select \image html rectangle_icon.png </li>
<li> Draw a rectangle with the mouse directly in the view or fill in the coordinates of two opposite vertices of the rectangle.</li>
<li> <b>Apply and Close</b> </li>
</ol>
\n <b>Dialog Box:</b>
\image html sketcher_dlg2.png
\n <b>Arguments:</b>
<ol>
<li>Coordinate system (Existing Local CS or Global CS can be selected)</li>
<li>A plane or a planar face to define a new Local Coordinate System
<li>Element type (segment, arc or rectangle).</li>
<li>The X,Y coordinates of two opposite vertices of the rectangle</li>
</ol>
\n <b>TUI Command:</b> <em>geompy.MakeSketcherOnPlane(Command, WorkingPlane)</em>
\n This algorithm creates a sketcher (wire or face), following the