1 // Copyright (C) 2017-2019 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 email : webmaster.salome@opencascade.com
20 // File: SketchPlugin_ConstraintDistanceAlongDir.cpp
21 // Created: 24 October 2017
22 // Author: Artem ZHIDKOV
24 #include <SketchPlugin_ConstraintDistanceAlongDir.h>
26 #include <SketcherPrs_Tools.h>
27 #include <SketcherPrs_Factory.h>
29 #include <GeomAPI_Dir2d.h>
30 #include <GeomAPI_XY.h>
31 #include <GeomDataAPI_Point2D.h>
33 #include <ModelAPI_AttributeDouble.h>
34 #include <ModelAPI_AttributeInteger.h>
35 #include <ModelAPI_Session.h>
36 #include <ModelAPI_Validator.h>
40 const double tolerance = 1e-7;
43 SketchPlugin_ConstraintDistanceAlongDir::SketchPlugin_ConstraintDistanceAlongDir()
44 : SketchPlugin_ConstraintDistance(),
50 //*************************************************************************************
51 void SketchPlugin_ConstraintDistanceAlongDir::initAttributes()
53 data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
54 data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
55 data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
56 data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::typeId());
58 data()->addAttribute(LOCATION_TYPE_ID(), ModelAPI_AttributeInteger::typeId());
59 ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), LOCATION_TYPE_ID());
61 data()->addAttribute(DISTANCE_VALUE_ID(), ModelAPI_AttributeDouble::typeId());
63 data()->addAttribute(NEGATIVE_TYPE_ID(), ModelAPI_AttributeBoolean::typeId());
64 boolean(NEGATIVE_TYPE_ID())->setValue(false);
67 //*************************************************************************************
68 void SketchPlugin_ConstraintDistanceAlongDir::execute()
70 AttributeDoublePtr anAttrValue = real(SketchPlugin_Constraint::VALUE());
71 if (anAttrValue->isInitialized() || !areAttributesInitialized())
74 double aDistance = calculateCurrentDistance();
75 anAttrValue->setValue(aDistance);
78 //*************************************************************************************
79 AISObjectPtr SketchPlugin_ConstraintDistanceAlongDir::getAISObject(AISObjectPtr thePrevious)
84 AISObjectPtr anAIS = SketcherPrs_Factory::lengthDimensionConstraint(this,
90 void SketchPlugin_ConstraintDistanceAlongDir::attributeChanged(const std::string& theID)
92 if (theID == SketchPlugin_Constraint::ENTITY_A() ||
93 theID == SketchPlugin_Constraint::ENTITY_B())
95 AttributeDoublePtr aValueAttr = real(SketchPlugin_Constraint::VALUE());
96 if (!aValueAttr->isInitialized() && areAttributesInitialized()) {
97 // only if it is not initialized, try to compute the current value
98 double aDistance = calculateCurrentDistance();
99 aValueAttr->setValue(aDistance);
101 } else if (theID == SketchPlugin_Constraint::VALUE() && !myValueUpdate) {
102 myValueUpdate = true;
103 // value of the distance shown to the user should be always positive
104 AttributeDoublePtr aDistanceValueAttr = real(DISTANCE_VALUE_ID());
105 double aConstraintValue = real(SketchPlugin_Constraint::VALUE())->value();
106 aDistanceValueAttr->setValue(fabs(aConstraintValue));
107 myValueUpdate = false;
108 } else if (theID == DISTANCE_VALUE_ID() && !myValueUpdate){
109 myValueUpdate = true;
110 // update value of the distance according to the value set by user
111 double aDistanceValue = real(DISTANCE_VALUE_ID())->value();
112 AttributeDoublePtr aConstraintValueAttr = real(SketchPlugin_Constraint::VALUE());
113 if (aConstraintValueAttr->value() < 0.0)
114 aDistanceValue = -aDistanceValue;
115 aConstraintValueAttr->setValue(aDistanceValue);
116 myValueUpdate = false;
117 } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
118 // Recalculate flyout point in local coordinates of the distance constraint:
119 // the X coordinate is a length of projection of the flyout point on the
120 // line binding two distanced points
121 // or a line of projection of the distanced point onto the distanced segment
122 // the Y coordinate is a distance from the flyout point to the line
123 std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
124 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
125 attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
126 std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
128 std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(sketch());
129 std::shared_ptr<GeomDataAPI_Point2D> aPointA = SketcherPrs_Tools::getFeaturePoint(
130 data(), SketchPlugin_Constraint::ENTITY_A(), aPlane);
131 std::shared_ptr<GeomDataAPI_Point2D> aPointB = SketcherPrs_Tools::getFeaturePoint(
132 data(), SketchPlugin_Constraint::ENTITY_B(), aPlane);
134 std::shared_ptr<GeomAPI_XY> aStartPnt = aPointA->pnt()->xy();
135 std::shared_ptr<GeomAPI_XY> aEndPnt = aPointB->pnt()->xy();
137 if (aEndPnt->distance(aStartPnt) < tolerance)
140 std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aEndPnt);
141 myFlyoutUpdate = true;
143 myFlyoutUpdate = false;