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>
36 const double tolerance = 1e-7;
39 SketchPlugin_ConstraintDistanceVertical::SketchPlugin_ConstraintDistanceVertical()
40 : SketchPlugin_ConstraintDistance()
44 //*************************************************************************************
45 void SketchPlugin_ConstraintDistanceVertical::initAttributes()
47 data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
48 data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
49 data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
50 data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::typeId());
53 //*************************************************************************************
54 void SketchPlugin_ConstraintDistanceVertical::execute()
56 AttributeDoublePtr anAttrValue = real(SketchPlugin_Constraint::VALUE());
57 if (anAttrValue->isInitialized() || !areAttributesInitialized())
60 double aDistance = calculateCurrentDistance();
61 anAttrValue->setValue(aDistance);
64 //*************************************************************************************
65 AISObjectPtr SketchPlugin_ConstraintDistanceVertical::getAISObject(AISObjectPtr thePrevious)
70 AISObjectPtr anAIS = SketcherPrs_Factory::lengthDimensionConstraint(this,
71 sketch()->coordinatePlane(),
76 //*************************************************************************************
77 void SketchPlugin_ConstraintDistanceVertical::move(double theDeltaX, double theDeltaY)
79 std::shared_ptr<ModelAPI_Data> aData = data();
80 if (!aData->isValid())
83 // Recalculate a shift of flyout point in terms of local coordinates
84 std::shared_ptr<GeomAPI_XY> aDir(new GeomAPI_XY(theDeltaX, theDeltaY));
85 std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(sketch());
86 std::shared_ptr<GeomDataAPI_Point2D> aPointA = SketcherPrs_Tools::getFeaturePoint(
87 data(), SketchPlugin_Constraint::ENTITY_A(), aPlane);
88 std::shared_ptr<GeomDataAPI_Point2D> aPointB = SketcherPrs_Tools::getFeaturePoint(
89 data(), SketchPlugin_Constraint::ENTITY_B(), aPlane);
91 if (!aPointA || !aPointB)
94 std::shared_ptr<GeomAPI_XY> aStartPnt = aPointA->pnt()->xy();
95 std::shared_ptr<GeomAPI_XY> aEndPnt = aPointB->pnt()->xy();
97 std::shared_ptr<GeomAPI_Dir2d> aLineDir(new GeomAPI_Dir2d(aEndPnt->decreased(aStartPnt)));
98 double dX = aDir->dot(aLineDir->xy());
99 double dY = -aDir->cross(aLineDir->xy());
101 std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
102 aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
103 myFlyoutUpdate = true;
104 if (aPoint->isInitialized()) {
105 aPoint->setValue(aPoint->x() + dX, aPoint->y() + dY);
107 aPoint->setValue(dX, dY);
109 myFlyoutUpdate = false;
112 double SketchPlugin_ConstraintDistanceVertical::calculateCurrentDistance()
114 std::shared_ptr<ModelAPI_Data> aData = data();
115 std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(sketch());
116 std::shared_ptr<GeomDataAPI_Point2D> aPointA =
117 SketcherPrs_Tools::getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_A(), aPlane);
118 std::shared_ptr<GeomDataAPI_Point2D> aPointB =
119 SketcherPrs_Tools::getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_B(), aPlane);
121 return aPointB->y() - aPointA->y();
124 void SketchPlugin_ConstraintDistanceVertical::attributeChanged(const std::string& theID)
126 if (theID == SketchPlugin_Constraint::ENTITY_A() ||
127 theID == SketchPlugin_Constraint::ENTITY_B())
129 AttributeDoublePtr aValueAttr = real(SketchPlugin_Constraint::VALUE());
130 if (!aValueAttr->isInitialized() && areAttributesInitialized()) {
131 // only if it is not initialized, try to compute the current value
132 double aDistance = calculateCurrentDistance();
133 aValueAttr->setValue(aDistance);
135 } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
136 myFlyoutUpdate = true;
137 // Recalculate flyout point in local coordinates of the distance constraint:
138 // the X coordinate is a length of projection of the flyout point on the
139 // line binding two distanced points
140 // or a line of projection of the distanced point onto the distanced segment
141 // the Y coordinate is a distance from the flyout point to the line
142 std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
143 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
144 attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
145 std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
147 std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(sketch());
148 std::shared_ptr<GeomDataAPI_Point2D> aPointA = SketcherPrs_Tools::getFeaturePoint(
149 data(), SketchPlugin_Constraint::ENTITY_A(), aPlane);
150 std::shared_ptr<GeomDataAPI_Point2D> aPointB = SketcherPrs_Tools::getFeaturePoint(
151 data(), SketchPlugin_Constraint::ENTITY_B(), aPlane);
153 std::shared_ptr<GeomAPI_XY> aStartPnt = aPointA->pnt()->xy();
154 std::shared_ptr<GeomAPI_XY> aEndPnt = aPointB->pnt()->xy();
156 if (aEndPnt->distance(aStartPnt) < tolerance)
159 std::shared_ptr<GeomAPI_Dir2d> aLineDir(new GeomAPI_Dir2d(aEndPnt->decreased(aStartPnt)));
160 std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aStartPnt);
162 double X = aFlyoutDir->dot(aLineDir->xy());
163 double Y = -aFlyoutDir->cross(aLineDir->xy());
164 aFlyoutAttr->setValue(X, Y);
165 myFlyoutUpdate = false;