122 lines
5.2 KiB
Python
122 lines
5.2 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2009, 2010 Yorik van Havre <yorik@uncreated.net> *
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# * Copyright (c) 2009, 2010 Ken Cline <cline@frii.com> *
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# * Copyright (c) 2020 FreeCAD Developers *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * This program is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with this program; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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"""Provides functions to transform sketches into Draft objects."""
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## @package draftify
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# \ingroup draftfunctions
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# \brief Provides functions to transform sketches into Draft objects.
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## \addtogroup draftfunctions
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# @{
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import lazy_loader.lazy_loader as lz
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import FreeCAD as App
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import draftutils.gui_utils as gui_utils
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import draftmake.make_block as make_block
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import draftmake.make_wire as make_wire
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import draftmake.make_circle as make_circle
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import draftmake.make_bspline as make_bspline
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import draftmake.make_bezcurve as make_bezcurve
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import draftmake.make_arc_3points as make_arc_3points
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# Delay import of module until first use because it is heavy
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Part = lz.LazyLoader("Part", globals(), "Part")
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DraftGeomUtils = lz.LazyLoader("DraftGeomUtils", globals(), "DraftGeomUtils")
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def draftify(objectslist, makeblock=False, delete=True):
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"""draftify(objectslist,[makeblock],[delete])
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Turn each object of the given list (objectslist can also be a single
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object) into a Draft parametric wire.
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TODO: support more objects
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Parameters
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----------
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objectslist :
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makeblock : bool
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If makeblock is True, multiple objects will be grouped in a block.
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delete : bool
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If delete = False, old objects are not deleted
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"""
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if not isinstance(objectslist,list):
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objectslist = [objectslist]
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newobjlist = []
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for obj in objectslist:
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if hasattr(obj,'Shape'):
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for cluster in Part.sortEdges(obj.Shape.Edges):
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w = Part.Wire(cluster)
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nobj = draftify_shape(w)
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if nobj is None:
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nobj = App.ActiveDocument.addObject("Part::Feature", obj.Name)
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nobj.Shape = w
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newobjlist.append(nobj)
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gui_utils.format_object(nobj, obj)
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# sketches are always in wireframe mode. In Draft we don't like that!
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if App.GuiUp:
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nobj.ViewObject.DisplayMode = "Flat Lines"
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if delete:
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App.ActiveDocument.removeObject(obj.Name)
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if makeblock:
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return make_block.make_block(newobjlist)
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else:
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if len(newobjlist) == 1:
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return newobjlist[0]
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return newobjlist
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def draftify_shape(shape):
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nobj = None
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if DraftGeomUtils.hasCurves(shape):
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if (len(shape.Edges) == 1):
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edge = shape.Edges[0]
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edge_type = DraftGeomUtils.geomType(edge)
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if edge_type == "Circle":
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if edge.isClosed():
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nobj = make_circle.make_circle(edge)
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else:
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first_parameter = edge.FirstParameter
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last_parameter = edge.LastParameter
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points = [edge.Curve.value(first_parameter),
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edge.Curve.value((first_parameter + last_parameter)/2),
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edge.Curve.value(last_parameter)]
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nobj = make_arc_3points.make_arc_3points(points)
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# TODO: take into consideration trimmed curves and capture the specific
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# type of BSpline and Bezier that can be converted to a draft object.
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# elif edge_type == "BSplineCurve":
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# knots = [edge.Curve.value(p) for p in edge.Curve.getKnots()]
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# nobj = make_bspline.make_bspline(knots, closed=edge.isClosed())
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# elif edge_type == "BezierCurve":
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# nobj = make_bezcurve.make_bezcurve(edge.Curve.getPoles(),
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# closed=edge.isClosed())
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else:
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nobj = make_wire.make_wire(shape)
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return nobj
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## @}
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