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66 lines
2.7 KiB
Plaintext
66 lines
2.7 KiB
Plaintext
/*!
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\page create_edge_page Edge
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To create an \b Edge, in the <b>Main Menu</b> select <b>New Entity >
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Build > Edge</b>
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There are three ways to create an edge. In all cases the \b Result
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will be a \b GEOM_Object (EDGE).
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Firstly, you can create a linear \b Edge by specifying two points (\b Point1 and
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\b Point2), which are the first and the last vertices of the edge.
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<b>TUI Command:</b> <em>geompy.MakeEdge(Vertex1, Vertex2)</em><br>
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<b>Arguments:</b> Name + 2 vertices (Vertex1 and Vertex2 are
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correspondingly the first and the last vertex of the edge).
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\image html edge1.png "Create edge by two points"
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Secondly, you can create an \b Edge by specifying a single wire.
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In this mode the following use cases are possible:
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- All edges that form the wire lie on the same geometrical curve
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(i.e. curve(edge1) == curve(edge2)).
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- The edges that form the wire lie on analytical curves of the same
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type, for example, segments of line, arcs, etc. In this case, the
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algorithm checks geometrical coincidence of these curves using
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a certain tolerance. If the curves are coinciding in terms of the given
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tolerance, the resulting edge is built as if on a single curve.
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- The edges that form the wire have the same tangency in the connection
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points. In this case the curves are interpolated by the single
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b-spline curve with sufficient precision. The resulting edge will
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be built on this curve.
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The case when the edges that form the wire have different tangency in
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the connection points (sharp bend) is not processed.
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<b>TUI Command:</b> <em>geompy.MakeEdgeWire(Wire, LinearTolerance, AngularTolerance)</em><br>
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<b>Arguments:</b> Name + 1 wire + Linear Tolerance + Angular Tolerance
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(tolerance values are used to check coincidence of the underlying curves).
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\image html edge2.png "Create edge from wire"
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The third case allows building edges of desired length on any existing
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curve (selected existing edge). <b>Start Point</b> parameter is optional.
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Any point can be selected for it, the new edge will begin at the end
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of initial edge, close to the selected point. <b>Length</b> can exceed
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the initial edge's length or be negative to extrapolate existing edge
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along its curve (except bezier and b-spline curves).
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<b>TUI Command:</b> <em>geompy.MakeEdgeOnCurveByLength(Edge, Length, StartPoint = None)</em><br>
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<b>Arguments:</b> Name + 1 edge + Length + 1 Vertex
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(StartPoint parameter is optional, it allows switching from one end of
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initial edge to another. Length can exceed the initial edge's length or be negative).
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\image html edge3.png "Create edge on curve"
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<b>Example:</b>
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\image html edgesn.png "Edge"
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Our <b>TUI Scripts</b> provide you with useful examples of creation of
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\ref tui_creation_edge "Advanced Geometric Objects".
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*/
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