1 // Copyright (C) 2014-2017 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 #include "SketchPlugin_ConstraintLength.h"
22 #include <SketchPlugin_Line.h>
24 #include <GeomDataAPI_Point2D.h>
26 #include <SketcherPrs_Factory.h>
28 #include <ModelAPI_AttributeDouble.h>
29 #include <ModelAPI_Data.h>
30 #include <ModelAPI_Result.h>
32 #include <GeomDataAPI_Point2D.h>
34 #include <GeomAPI_Dir2d.h>
35 #include <GeomAPI_Lin2d.h>
36 #include <GeomAPI_Pnt2d.h>
37 #include <GeomAPI_XY.h>
39 #include <Config_PropManager.h>
43 const double tolerance = 1e-7;
45 SketchPlugin_ConstraintLength::SketchPlugin_ConstraintLength()
47 myFlyoutUpdate = false;
50 void SketchPlugin_ConstraintLength::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());
57 void SketchPlugin_ConstraintLength::colorConfigInfo(std::string& theSection, std::string& theName,
58 std::string& theDefault)
60 theSection = "Visualization";
61 theName = "sketch_dimension_color";
62 theDefault = SKETCH_DIMENSION_COLOR;
65 void SketchPlugin_ConstraintLength::execute()
67 std::shared_ptr<ModelAPI_AttributeRefAttr> aRef = std::dynamic_pointer_cast<
68 ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
69 FeaturePtr aFeature = ModelAPI_Feature::feature(aRef->object());
72 std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<
73 GeomDataAPI_Point2D>(aFeature->data()->attribute(SketchPlugin_Line::START_ID()));
74 std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<
75 GeomDataAPI_Point2D>(aFeature->data()->attribute(SketchPlugin_Line::END_ID()));
77 double aLenght = aPoint1->pnt()->distance(aPoint2->pnt());
79 //std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
80 // ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
81 //if(!aValueAttr->isInitialized()) {
82 // aValueAttr->setValue(aLenght);
85 // the value should to be computed here, not in the getAISObject
86 // in order to change the model value
87 // inside the object transaction. This is important for creating a constraint by preselection.
88 // The display of the presentation in this case happens after the transaction commit
89 AttributePtr aFlyOutAttribute =
90 data()->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
91 if (!aFlyOutAttribute->isInitialized()) {
92 compute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
97 bool SketchPlugin_ConstraintLength::compute(const std::string& theAttributeId)
99 if (theAttributeId != SketchPlugin_Constraint::FLYOUT_VALUE_PNT())
102 std::shared_ptr<GeomAPI_Pnt> aPoint1, aPoint2;
103 std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, anEndPoint;
104 if (!getPoints(aPoint1, aPoint2, aStartPoint, anEndPoint))
107 std::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = std::dynamic_pointer_cast<
108 GeomDataAPI_Point2D>(data()->attribute(theAttributeId));
110 std::shared_ptr<GeomAPI_Lin2d> aLine =
111 std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aStartPoint->pnt(), anEndPoint->pnt()));
112 if (!aFlyOutAttr->isInitialized() ||
113 (fabs(aFlyOutAttr->x()) < tolerance && fabs(aFlyOutAttr->y()) < tolerance)) {
114 double aDist = aPoint1->distance(aPoint2)/5.;
115 std::shared_ptr<GeomAPI_Pnt2d> aFPnt = aLine->shiftedLocation(aDist);
116 aFlyOutAttr->setValue(aFPnt);
122 bool SketchPlugin_ConstraintLength::computeLenghtValue(double& theValue)
124 bool aResult = false;
125 std::shared_ptr<GeomAPI_Pnt> aPoint1, aPoint2;
126 std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, anEndPoint;
127 if (getPoints(aPoint1, aPoint2, aStartPoint, anEndPoint)) {
128 theValue = aPoint1->distance(aPoint2);
134 bool SketchPlugin_ConstraintLength::getPoints(
135 std::shared_ptr<GeomAPI_Pnt>& thePoint1, std::shared_ptr<GeomAPI_Pnt>& thePoint2,
136 std::shared_ptr<GeomDataAPI_Point2D>& theStartPoint,
137 std::shared_ptr<GeomDataAPI_Point2D>& theEndPoint)
141 std::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
142 std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
143 ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
146 FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
147 if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
149 DataPtr aData = aFeature->data();
150 theStartPoint = std::dynamic_pointer_cast<
151 GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::START_ID()));
152 theEndPoint = std::dynamic_pointer_cast<
153 GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::END_ID()));
154 thePoint1 = sketch()->to3D(theStartPoint->x(), theStartPoint->y());
155 thePoint2 = sketch()->to3D(theEndPoint->x(), theEndPoint->y());
159 AISObjectPtr SketchPlugin_ConstraintLength::getAISObject(AISObjectPtr thePrevious)
164 AISObjectPtr anAIS = SketcherPrs_Factory::lengthDimensionConstraint(this,
165 sketch()->coordinatePlane(), thePrevious);
169 void SketchPlugin_ConstraintLength::attributeChanged(const std::string& theID) {
170 if (theID == SketchPlugin_Constraint::ENTITY_A())
172 std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
173 ModelAPI_AttributeDouble>(attribute(SketchPlugin_Constraint::VALUE()));
174 if (!aValueAttr->isInitialized()) {
175 // only if it is not initialized, try to compute the current value
177 if (computeLenghtValue(aLength))
178 aValueAttr->setValue(aLength);
180 } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
181 // Recalculate flyout point in local coordinates of the line:
182 // the X coordinate is a length of projection of the flyout point on the line
183 // the Y coordinate is a distance from the point to the line
184 std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
185 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
186 attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
187 AttributeRefAttrPtr aLineAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
188 attribute(SketchPlugin_Constraint::ENTITY_A()));
189 if (!aLineAttr || !aLineAttr->isObject())
191 FeaturePtr aLine = ModelAPI_Feature::feature(aLineAttr->object());
192 if (!aLine || aLine->getKind() != SketchPlugin_Line::ID())
195 std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
196 std::shared_ptr<GeomAPI_XY> aStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
197 aLine->attribute(SketchPlugin_Line::START_ID()))->pnt()->xy();
198 std::shared_ptr<GeomAPI_XY> aEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
199 aLine->attribute(SketchPlugin_Line::END_ID()))->pnt()->xy();
201 myFlyoutUpdate = true;
202 std::shared_ptr<GeomAPI_Dir2d> aLineDir(new GeomAPI_Dir2d(aEndPnt->decreased(aStartPnt)));
203 std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aStartPnt);
204 double X = aFlyoutDir->dot(aLineDir->xy());
205 double Y = -aFlyoutDir->cross(aLineDir->xy());
206 aFlyoutAttr->setValue(X, Y);
207 myFlyoutUpdate = false;