1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
3 // File: SketchPlugin_ConstraintLength.cpp
4 // Created: 30 May 2014
5 // Author: Artem ZHIDKOV
7 #include "SketchPlugin_ConstraintLength.h"
8 #include <SketchPlugin_Line.h>
10 #include <GeomDataAPI_Point2D.h>
12 #include <SketcherPrs_Factory.h>
14 #include <ModelAPI_AttributeDouble.h>
15 #include <ModelAPI_Data.h>
16 #include <ModelAPI_Result.h>
18 #include <GeomDataAPI_Point2D.h>
20 #include <GeomAPI_Dir2d.h>
21 #include <GeomAPI_Lin2d.h>
22 #include <GeomAPI_Pnt2d.h>
23 #include <GeomAPI_XY.h>
25 #include <Config_PropManager.h>
29 const double tolerance = 1e-7;
31 SketchPlugin_ConstraintLength::SketchPlugin_ConstraintLength()
33 myFlyoutUpdate = false;
36 void SketchPlugin_ConstraintLength::initAttributes()
38 data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
39 data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
40 data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
43 void SketchPlugin_ConstraintLength::execute()
45 std::shared_ptr<ModelAPI_AttributeRefAttr> aRef = std::dynamic_pointer_cast<
46 ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
47 FeaturePtr aFeature = ModelAPI_Feature::feature(aRef->object());
50 std::shared_ptr<GeomDataAPI_Point2D> aPoint1 = std::dynamic_pointer_cast<
51 GeomDataAPI_Point2D>(aFeature->data()->attribute(SketchPlugin_Line::START_ID()));
52 std::shared_ptr<GeomDataAPI_Point2D> aPoint2 = std::dynamic_pointer_cast<
53 GeomDataAPI_Point2D>(aFeature->data()->attribute(SketchPlugin_Line::END_ID()));
55 double aLenght = aPoint1->pnt()->distance(aPoint2->pnt());
57 //std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
58 // ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
59 //if(!aValueAttr->isInitialized()) {
60 // aValueAttr->setValue(aLenght);
63 // the value should to be computed here, not in the getAISObject in order to change the model value
64 // inside the object transaction. This is important for creating a constraint by preselection.
65 // The display of the presentation in this case happens after the transaction commit
66 AttributePtr aFlyOutAttribute = data()->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
67 if (!aFlyOutAttribute->isInitialized()) {
68 compute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
73 bool SketchPlugin_ConstraintLength::compute(const std::string& theAttributeId)
75 if (theAttributeId != SketchPlugin_Constraint::FLYOUT_VALUE_PNT())
78 std::shared_ptr<GeomAPI_Pnt> aPoint1, aPoint2;
79 std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, anEndPoint;
80 if (!getPoints(aPoint1, aPoint2, aStartPoint, anEndPoint))
83 std::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = std::dynamic_pointer_cast<
84 GeomDataAPI_Point2D>(data()->attribute(theAttributeId));
86 std::shared_ptr<GeomAPI_Lin2d> aLine =
87 std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aStartPoint->pnt(), anEndPoint->pnt()));
88 if (fabs(aFlyOutAttr->x()) < tolerance && fabs(aFlyOutAttr->y()) < tolerance) {
89 double aDist = aPoint1->distance(aPoint2)/5.;
90 std::shared_ptr<GeomAPI_Pnt2d> aFPnt = aLine->shiftedLocation(aDist);
91 aFlyOutAttr->setValue(aFPnt);
97 bool SketchPlugin_ConstraintLength::getPoints(
98 std::shared_ptr<GeomAPI_Pnt>& thePoint1, std::shared_ptr<GeomAPI_Pnt>& thePoint2,
99 std::shared_ptr<GeomDataAPI_Point2D>& theStartPoint,
100 std::shared_ptr<GeomDataAPI_Point2D>& theEndPoint)
104 std::shared_ptr<GeomAPI_Pln> aPlane = sketch()->plane();
105 std::shared_ptr<ModelAPI_AttributeRefAttr> anAttr = std::dynamic_pointer_cast<
106 ModelAPI_AttributeRefAttr>(data()->attribute(SketchPlugin_Constraint::ENTITY_A()));
109 FeaturePtr aFeature = ModelAPI_Feature::feature(anAttr->object());
110 if (!aFeature || aFeature->getKind() != SketchPlugin_Line::ID())
112 DataPtr aData = aFeature->data();
113 theStartPoint = std::dynamic_pointer_cast<
114 GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::START_ID()));
115 theEndPoint = std::dynamic_pointer_cast<
116 GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Line::END_ID()));
117 thePoint1 = sketch()->to3D(theStartPoint->x(), theStartPoint->y());
118 thePoint2 = sketch()->to3D(theEndPoint->x(), theEndPoint->y());
122 AISObjectPtr SketchPlugin_ConstraintLength::getAISObject(AISObjectPtr thePrevious)
127 AISObjectPtr anAIS = thePrevious;
129 anAIS = SketcherPrs_Factory::lengthDimensionConstraint(this, sketch()->coordinatePlane());
131 std::vector<int> aRGB = Config_PropManager::color("Visualization", "sketch_dimension_color",
132 SKETCH_DIMENSION_COLOR);
133 anAIS->setColor(aRGB[0], aRGB[1], aRGB[2]);
137 void SketchPlugin_ConstraintLength::move(double theDeltaX, double theDeltaY)
139 std::shared_ptr<ModelAPI_Data> aData = data();
140 if (!aData->isValid())
143 AttributeRefAttrPtr aLineAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
144 attribute(SketchPlugin_Constraint::ENTITY_A()));
145 if (!aLineAttr || !aLineAttr->isObject())
147 FeaturePtr aLine = ModelAPI_Feature::feature(aLineAttr->object());
148 if (!aLine || aLine->getKind() != SketchPlugin_Line::ID())
151 // Recalculate a shift of flyout point in terms of local coordinates
152 std::shared_ptr<GeomAPI_XY> aDir(new GeomAPI_XY(theDeltaX, theDeltaY));
153 std::shared_ptr<GeomAPI_XY> aStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
154 aLine->attribute(SketchPlugin_Line::START_ID()))->pnt()->xy();
155 std::shared_ptr<GeomAPI_XY> aEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
156 aLine->attribute(SketchPlugin_Line::END_ID()))->pnt()->xy();
157 std::shared_ptr<GeomAPI_Dir2d> aLineDir(new GeomAPI_Dir2d(aEndPnt->decreased(aStartPnt)));
158 double dX = aDir->dot(aLineDir->xy());
159 double dY = -aDir->cross(aLineDir->xy());
161 myFlyoutUpdate = true;
162 std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
163 aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
164 aPoint->setValue(aPoint->x() + dX, aPoint->y() + dY);
165 myFlyoutUpdate = false;
168 void SketchPlugin_ConstraintLength::attributeChanged(const std::string& theID) {
169 if (theID == SketchPlugin_Constraint::ENTITY_A())
171 std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
172 ModelAPI_AttributeDouble>(attribute(SketchPlugin_Constraint::VALUE()));
173 if (!aValueAttr->isInitialized()) { // only if it is not initialized, try to compute the current value
174 std::shared_ptr<GeomAPI_Pnt> aPoint1, aPoint2;
175 std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, anEndPoint;
176 if (getPoints(aPoint1, aPoint2, aStartPoint, anEndPoint)) {
177 double aLength = aPoint1->distance(aPoint2);
178 aValueAttr->setValue(aLength);
181 } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
182 myFlyoutUpdate = true;
183 // Recalculate flyout point in local coordinates of the line:
184 // the X coordinate is a length of projection of the flyout point on the line
185 // the Y coordinate is a distance from the point to the line
186 std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
187 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
188 attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
189 AttributeRefAttrPtr aLineAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
190 attribute(SketchPlugin_Constraint::ENTITY_A()));
191 if (!aLineAttr || !aLineAttr->isObject())
193 FeaturePtr aLine = ModelAPI_Feature::feature(aLineAttr->object());
194 if (!aLine || aLine->getKind() != SketchPlugin_Line::ID())
197 std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
198 std::shared_ptr<GeomAPI_XY> aStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
199 aLine->attribute(SketchPlugin_Line::START_ID()))->pnt()->xy();
200 std::shared_ptr<GeomAPI_XY> aEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
201 aLine->attribute(SketchPlugin_Line::END_ID()))->pnt()->xy();
203 std::shared_ptr<GeomAPI_Dir2d> aLineDir(new GeomAPI_Dir2d(aEndPnt->decreased(aStartPnt)));
204 std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aStartPnt);
205 double X = aFlyoutDir->dot(aLineDir->xy());
206 double Y = -aFlyoutDir->cross(aLineDir->xy());
207 aFlyoutAttr->setValue(X, Y);
208 myFlyoutUpdate = false;