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>
39 const double tolerance = 1e-7;
42 SketchPlugin_ConstraintDistanceAlongDir::SketchPlugin_ConstraintDistanceAlongDir()
43 : SketchPlugin_ConstraintDistance(),
49 //*************************************************************************************
50 void SketchPlugin_ConstraintDistanceAlongDir::initAttributes()
52 data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
53 data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
54 data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
55 data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::typeId());
57 data()->addAttribute(LOCATION_TYPE_ID(), ModelAPI_AttributeInteger::typeId());
58 ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), LOCATION_TYPE_ID());
60 data()->addAttribute(DISTANCE_VALUE_ID(), ModelAPI_AttributeDouble::typeId());
62 data()->addAttribute(NEGATIVE_TYPE_ID(), ModelAPI_AttributeBoolean::typeId());
63 boolean(NEGATIVE_TYPE_ID())->setValue(false);
66 //*************************************************************************************
67 void SketchPlugin_ConstraintDistanceAlongDir::execute()
69 AttributeDoublePtr anAttrValue = real(SketchPlugin_Constraint::VALUE());
70 if (anAttrValue->isInitialized() || !areAttributesInitialized())
73 double aDistance = calculateCurrentDistance();
74 anAttrValue->setValue(aDistance);
77 //*************************************************************************************
78 AISObjectPtr SketchPlugin_ConstraintDistanceAlongDir::getAISObject(AISObjectPtr thePrevious)
83 AISObjectPtr anAIS = SketcherPrs_Factory::lengthDimensionConstraint(this,
84 sketch()->coordinatePlane(),
89 void SketchPlugin_ConstraintDistanceAlongDir::attributeChanged(const std::string& theID)
91 if (theID == SketchPlugin_Constraint::ENTITY_A() ||
92 theID == SketchPlugin_Constraint::ENTITY_B())
94 AttributeDoublePtr aValueAttr = real(SketchPlugin_Constraint::VALUE());
95 if (!aValueAttr->isInitialized() && areAttributesInitialized()) {
96 // only if it is not initialized, try to compute the current value
97 double aDistance = calculateCurrentDistance();
98 aValueAttr->setValue(aDistance);
100 } else if (theID == SketchPlugin_Constraint::VALUE() && !myValueUpdate) {
101 myValueUpdate = true;
102 // value of the distance shown to the user should be always positive
103 AttributeDoublePtr aDistanceValueAttr = real(DISTANCE_VALUE_ID());
104 double aConstraintValue = real(SketchPlugin_Constraint::VALUE())->value();
105 aDistanceValueAttr->setValue(fabs(aConstraintValue));
106 myValueUpdate = false;
107 } else if (theID == DISTANCE_VALUE_ID() && !myValueUpdate){
108 myValueUpdate = true;
109 // update value of the distance according to the value set by user
110 double aDistanceValue = real(DISTANCE_VALUE_ID())->value();
111 AttributeDoublePtr aConstraintValueAttr = real(SketchPlugin_Constraint::VALUE());
112 if (aConstraintValueAttr->value() < 0.0)
113 aDistanceValue = -aDistanceValue;
114 aConstraintValueAttr->setValue(aDistanceValue);
115 myValueUpdate = false;
116 } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
117 // Recalculate flyout point in local coordinates of the distance constraint:
118 // the X coordinate is a length of projection of the flyout point on the
119 // line binding two distanced points
120 // or a line of projection of the distanced point onto the distanced segment
121 // the Y coordinate is a distance from the flyout point to the line
122 std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
123 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
124 attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
125 std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
127 std::shared_ptr<GeomAPI_Ax3> aPlane = SketchPlugin_Sketch::plane(sketch());
128 std::shared_ptr<GeomDataAPI_Point2D> aPointA = SketcherPrs_Tools::getFeaturePoint(
129 data(), SketchPlugin_Constraint::ENTITY_A(), aPlane);
130 std::shared_ptr<GeomDataAPI_Point2D> aPointB = SketcherPrs_Tools::getFeaturePoint(
131 data(), SketchPlugin_Constraint::ENTITY_B(), aPlane);
133 std::shared_ptr<GeomAPI_XY> aStartPnt = aPointA->pnt()->xy();
134 std::shared_ptr<GeomAPI_XY> aEndPnt = aPointB->pnt()->xy();
136 if (aEndPnt->distance(aStartPnt) < tolerance)
139 std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aEndPnt);
140 myFlyoutUpdate = true;
142 myFlyoutUpdate = false;