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_ConstraintDistanceAlongDir.cpp
22 // Created: 24 October 2017
23 // Author: Artem ZHIDKOV
25 #include <SketchPlugin_ConstraintDistanceAlongDir.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>
41 const double tolerance = 1e-7;
44 SketchPlugin_ConstraintDistanceAlongDir::SketchPlugin_ConstraintDistanceAlongDir()
45 : SketchPlugin_ConstraintDistance(),
51 //*************************************************************************************
52 void SketchPlugin_ConstraintDistanceAlongDir::initAttributes()
54 data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
55 data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
56 data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
57 data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::typeId());
59 data()->addAttribute(LOCATION_TYPE_ID(), ModelAPI_AttributeInteger::typeId());
60 ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), LOCATION_TYPE_ID());
62 data()->addAttribute(DISTANCE_VALUE_ID(), ModelAPI_AttributeDouble::typeId());
64 data()->addAttribute(NEGATIVE_TYPE_ID(), ModelAPI_AttributeBoolean::typeId());
65 boolean(NEGATIVE_TYPE_ID())->setValue(false);
68 //*************************************************************************************
69 void SketchPlugin_ConstraintDistanceAlongDir::execute()
71 AttributeDoublePtr anAttrValue = real(SketchPlugin_Constraint::VALUE());
72 if (anAttrValue->isInitialized() || !areAttributesInitialized())
75 double aDistance = calculateCurrentDistance();
76 anAttrValue->setValue(aDistance);
79 //*************************************************************************************
80 AISObjectPtr SketchPlugin_ConstraintDistanceAlongDir::getAISObject(AISObjectPtr thePrevious)
85 AISObjectPtr anAIS = SketcherPrs_Factory::lengthDimensionConstraint(this,
86 sketch()->coordinatePlane(),
91 void SketchPlugin_ConstraintDistanceAlongDir::attributeChanged(const std::string& theID)
93 if (theID == SketchPlugin_Constraint::ENTITY_A() ||
94 theID == SketchPlugin_Constraint::ENTITY_B())
96 AttributeDoublePtr aValueAttr = real(SketchPlugin_Constraint::VALUE());
97 if (!aValueAttr->isInitialized() && areAttributesInitialized()) {
98 // only if it is not initialized, try to compute the current value
99 double aDistance = calculateCurrentDistance();
100 aValueAttr->setValue(aDistance);
102 } else if (theID == SketchPlugin_Constraint::VALUE() && !myValueUpdate) {
103 myValueUpdate = true;
104 // value of the distance shown to the user should be always positive
105 AttributeDoublePtr aDistanceValueAttr = real(DISTANCE_VALUE_ID());
106 double aConstraintValue = real(SketchPlugin_Constraint::VALUE())->value();
107 aDistanceValueAttr->setValue(fabs(aConstraintValue));
108 myValueUpdate = false;
109 } else if (theID == DISTANCE_VALUE_ID() && !myValueUpdate){
110 myValueUpdate = true;
111 // update value of the distance according to the value set by user
112 double aDistanceValue = real(DISTANCE_VALUE_ID())->value();
113 AttributeDoublePtr aConstraintValueAttr = real(SketchPlugin_Constraint::VALUE());
114 if (aConstraintValueAttr->value() < 0.0)
115 aDistanceValue = -aDistanceValue;
116 aConstraintValueAttr->setValue(aDistanceValue);
117 myValueUpdate = false;
118 } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
119 // Recalculate flyout point in local coordinates of the distance constraint:
120 // the X coordinate is a length of projection of the flyout point on the
121 // line binding two distanced points
122 // or a line of projection of the distanced point onto the distanced segment
123 // the Y coordinate is a distance from the flyout point to the line
124 std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
125 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
126 attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
127 std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
129 std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(sketch());
130 std::shared_ptr<GeomDataAPI_Point2D> aPointA = SketcherPrs_Tools::getFeaturePoint(
131 data(), SketchPlugin_Constraint::ENTITY_A(), aPlane);
132 std::shared_ptr<GeomDataAPI_Point2D> aPointB = SketcherPrs_Tools::getFeaturePoint(
133 data(), SketchPlugin_Constraint::ENTITY_B(), aPlane);
135 std::shared_ptr<GeomAPI_XY> aStartPnt = aPointA->pnt()->xy();
136 std::shared_ptr<GeomAPI_XY> aEndPnt = aPointB->pnt()->xy();
138 if (aEndPnt->distance(aStartPnt) < tolerance)
141 std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aEndPnt);
142 myFlyoutUpdate = true;
144 myFlyoutUpdate = false;