233 lines
8.9 KiB
Python
233 lines
8.9 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) 2018 Benjamin Alterauge (ageeye) *
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# * Copyright (c) 2020 Carlo Pavan <carlopav@gmail.com> *
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# * Copyright (c) 2020 Eliud Cabrera Castillo <e.cabrera-castillo@tum.de> *
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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 the object code for the PointArray object.
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"""
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## @package pointarray
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# \ingroup draftobjects
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# \brief Provides the object code for the PointArray object.
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from PySide.QtCore import QT_TRANSLATE_NOOP
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import FreeCAD as App
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import DraftVecUtils
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import draftutils.utils as utils
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from draftutils.messages import _wrn, _err
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from draftutils.translate import translate
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from draftobjects.draftlink import DraftLink
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## \addtogroup draftobjects
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# @{
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class PointArray(DraftLink):
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"""The Draft Point Array object."""
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def __init__(self, obj):
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super().__init__(obj, "PointArray")
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def attach(self, obj):
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"""Set up the properties when the object is attached."""
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self.set_properties(obj)
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super().attach(obj)
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def linkSetup(self, obj):
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"""Set up the object as a link object."""
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super().linkSetup(obj)
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obj.configLinkProperty(ElementCount='Count')
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def set_properties(self, obj):
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"""Set properties only if they don't exist."""
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properties = obj.PropertiesList
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if "Base" not in properties:
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_tip = QT_TRANSLATE_NOOP("App::Property", "Base object that will be duplicated")
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obj.addProperty("App::PropertyLink",
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"Base",
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"Objects",
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_tip)
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obj.Base = None
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if "PointObject" not in properties:
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_tip = QT_TRANSLATE_NOOP("App::Property", "Object containing points used to distribute the copies.")
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obj.addProperty("App::PropertyLink",
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"PointObject",
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"Objects",
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_tip)
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obj.PointObject = None
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if "Fuse" not in properties:
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_tip = QT_TRANSLATE_NOOP("App::Property",
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"Specifies if the copies "
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"should be fused together "
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"if they touch each other (slower)")
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obj.addProperty("App::PropertyBool",
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"Fuse",
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"Objects",
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_tip)
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obj.Fuse = False
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if "Count" not in properties:
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_tip = QT_TRANSLATE_NOOP("App::Property", "Number of copies in the array.\nThis property is read-only, as the number depends on the points in 'Point Object'.")
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obj.addProperty("App::PropertyInteger",
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"Count",
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"Objects",
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_tip)
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obj.Count = 0
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obj.setEditorMode("Count", 1) # Read only
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if "ExtraPlacement" not in properties:
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_tip = QT_TRANSLATE_NOOP("App::Property", "Additional placement, shift and rotation, that will be applied to each copy")
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obj.addProperty("App::PropertyPlacement",
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"ExtraPlacement",
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"Objects",
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_tip)
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obj.ExtraPlacement = App.Placement()
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if self.use_link and "ExpandArray" not in properties:
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_tip = QT_TRANSLATE_NOOP("App::Property", "Show the individual array elements (only for Link arrays)")
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obj.addProperty("App::PropertyBool",
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"ExpandArray",
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"Objects",
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_tip)
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obj.setPropertyStatus('Shape', 'Transient')
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def execute(self, obj):
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"""Run when the object is created or recomputed."""
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if self.props_changed_placement_only(obj) \
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or not obj.Base \
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or not obj.PointObject:
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self.props_changed_clear()
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return
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pt_list = get_point_list(obj.PointObject)
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obj.Count = len(pt_list)
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pls = build_placements(obj.Base, pt_list, obj.ExtraPlacement)
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self.buildShape(obj, obj.Placement, pls)
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self.props_changed_clear()
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return (not self.use_link)
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def onDocumentRestored(self, obj):
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super().onDocumentRestored(obj)
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# Fuse property was added in v1.0, obj should be OK if it is present:
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if hasattr(obj, "Fuse"):
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return
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if not hasattr(obj, "ExtraPlacement"):
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_wrn("v0.19, " + obj.Label + ", " + translate("draft", "added 'ExtraPlacement' property"))
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self.set_properties(obj)
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if hasattr(obj, "PointList"):
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_wrn("v0.19, " + obj.Label + ", " + translate("draft", "migrated 'PointList' property to 'PointObject'"))
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obj.PointObject = obj.PointList
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obj.removeProperty("PointList")
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_wrn("v1.0, " + obj.Label + ", " + translate("draft", "added 'Fuse' property"))
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def remove_equal_vecs (vec_list):
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"""Remove equal vectors from a list.
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Parameters
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----------
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vec_list: list of App.Vectors
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Returns
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-------
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list of App.Vectors
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"""
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res_list = []
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for vec in vec_list:
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for res in res_list:
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if DraftVecUtils.equals(vec, res):
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break
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else:
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res_list.append(vec)
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return res_list
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def get_point_list(point_object):
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"""Extract a list of points from a point object.
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Parameters
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----------
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point_object: Part::Feature, Sketcher::SketchObject, Mesh::Feature
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or Points::FeatureCustom
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The object must have vertices and/or points.
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Returns
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-------
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list of App.Vectors
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"""
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if hasattr(point_object, "Shape") and hasattr(point_object.Shape, "Vertexes"):
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pt_list = [v.Point for v in point_object.Shape.Vertexes]
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# For compatibility with previous versions: add all points from sketch (including construction geometry):
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if hasattr(point_object, 'Geometry'):
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place = point_object.Placement
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for geo in point_object.Geometry:
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if geo.TypeId == "Part::GeomPoint":
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pt_list.append(place.multVec(App.Vector(geo.X, geo.Y, geo.Z)))
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elif hasattr(point_object, "Mesh"):
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pt_list = [p.Vector for p in point_object.Mesh.Points]
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elif hasattr(point_object, "Points"):
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pt_list = point_object.Points.Points
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else:
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return []
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return remove_equal_vecs(pt_list)
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def build_placements(base_object, pt_list=None, placement=App.Placement()):
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"""Build a placements from the base object and list of points.
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Returns
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-------
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list of App.Placements
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"""
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if not pt_list:
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_err(translate("Draft",
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"Point object doesn't have a discrete point, "
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"it cannot be used for an array."))
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return []
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pls = list()
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for point in pt_list:
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new_pla = base_object.Placement.copy()
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original_rotation = new_pla.Rotation
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# Reset the position of the copy, and combine the original rotation
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# with the provided rotation. Two rotations (quaternions)
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# are combined by multiplying them.
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new_pla.Base = placement.Base
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new_pla.Rotation = original_rotation * placement.Rotation
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new_pla.translate(point)
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pls.append(new_pla)
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return pls
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# Alias for compatibility with v0.18 and earlier
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_PointArray = PointArray
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## @}
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