1 // Copyright (C) 2017 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
21 // File: SketchPlugin_ConstraintDistanceVertical.cpp
22 // Created: 10 May 2017
23 // Author: Artem ZHIDKOV
25 #include <SketchPlugin_ConstraintDistanceVertical.h>
27 #include <SketcherPrs_Tools.h>
28 #include <SketcherPrs_Factory.h>
30 #include <GeomAPI_Dir2d.h>
31 #include <GeomAPI_XY.h>
32 #include <GeomDataAPI_Point2D.h>
34 #include <ModelAPI_AttributeDouble.h>
35 #include <ModelAPI_AttributeInteger.h>
36 #include <ModelAPI_Session.h>
37 #include <ModelAPI_Validator.h>
39 const double tolerance = 1e-7;
42 SketchPlugin_ConstraintDistanceVertical::SketchPlugin_ConstraintDistanceVertical()
43 : SketchPlugin_ConstraintDistance()
47 //*************************************************************************************
48 void SketchPlugin_ConstraintDistanceVertical::initAttributes()
50 data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
51 data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
52 data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
53 data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::typeId());
55 data()->addAttribute(SketchPlugin_ConstraintDistanceVertical::LOCATION_TYPE_ID(),
56 ModelAPI_AttributeInteger::typeId());
57 ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), LOCATION_TYPE_ID());
60 //*************************************************************************************
61 void SketchPlugin_ConstraintDistanceVertical::execute()
63 AttributeDoublePtr anAttrValue = real(SketchPlugin_Constraint::VALUE());
64 if (anAttrValue->isInitialized() || !areAttributesInitialized())
67 double aDistance = calculateCurrentDistance();
68 anAttrValue->setValue(aDistance);
71 //*************************************************************************************
72 AISObjectPtr SketchPlugin_ConstraintDistanceVertical::getAISObject(AISObjectPtr thePrevious)
77 AISObjectPtr anAIS = SketcherPrs_Factory::lengthDimensionConstraint(this,
78 sketch()->coordinatePlane(),
83 double SketchPlugin_ConstraintDistanceVertical::calculateCurrentDistance()
85 std::shared_ptr<ModelAPI_Data> aData = data();
86 std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(sketch());
87 std::shared_ptr<GeomDataAPI_Point2D> aPointA =
88 SketcherPrs_Tools::getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_A(), aPlane);
89 std::shared_ptr<GeomDataAPI_Point2D> aPointB =
90 SketcherPrs_Tools::getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_B(), aPlane);
92 return aPointB->y() - aPointA->y();
95 void SketchPlugin_ConstraintDistanceVertical::attributeChanged(const std::string& theID)
97 if (theID == SketchPlugin_Constraint::ENTITY_A() ||
98 theID == SketchPlugin_Constraint::ENTITY_B())
100 AttributeDoublePtr aValueAttr = real(SketchPlugin_Constraint::VALUE());
101 if (!aValueAttr->isInitialized() && areAttributesInitialized()) {
102 // only if it is not initialized, try to compute the current value
103 double aDistance = calculateCurrentDistance();
104 aValueAttr->setValue(aDistance);
106 } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
107 // Recalculate flyout point in local coordinates of the distance constraint:
108 // the X coordinate is a length of projection of the flyout point on the
109 // line binding two distanced points
110 // or a line of projection of the distanced point onto the distanced segment
111 // the Y coordinate is a distance from the flyout point to the line
112 std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
113 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
114 attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
115 std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
117 std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(sketch());
118 std::shared_ptr<GeomDataAPI_Point2D> aPointA = SketcherPrs_Tools::getFeaturePoint(
119 data(), SketchPlugin_Constraint::ENTITY_A(), aPlane);
120 std::shared_ptr<GeomDataAPI_Point2D> aPointB = SketcherPrs_Tools::getFeaturePoint(
121 data(), SketchPlugin_Constraint::ENTITY_B(), aPlane);
123 std::shared_ptr<GeomAPI_XY> aStartPnt = aPointA->pnt()->xy();
124 std::shared_ptr<GeomAPI_XY> aEndPnt = aPointB->pnt()->xy();
126 if (aEndPnt->distance(aStartPnt) < tolerance)
129 std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aEndPnt);
130 myFlyoutUpdate = true;
131 double X = aFlyoutDir->y(); // Dot on OY axis
132 double Y = -aFlyoutDir->x(); // Cross to OY axis
133 aFlyoutAttr->setValue(X, Y);
134 myFlyoutUpdate = false;