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());
132 // Set color from preferences
133 std::vector<int> aRGB = Config_PropManager::color("Visualization", "sketch_dimension_color",
134 SKETCH_DIMENSION_COLOR);
135 anAIS->setColor(aRGB[0], aRGB[1], aRGB[2]);
139 void SketchPlugin_ConstraintLength::move(double theDeltaX, double theDeltaY)
141 std::shared_ptr<ModelAPI_Data> aData = data();
142 if (!aData->isValid())
145 AttributeRefAttrPtr aLineAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
146 attribute(SketchPlugin_Constraint::ENTITY_A()));
147 if (!aLineAttr || !aLineAttr->isObject())
149 FeaturePtr aLine = ModelAPI_Feature::feature(aLineAttr->object());
150 if (!aLine || aLine->getKind() != SketchPlugin_Line::ID())
153 // Recalculate a shift of flyout point in terms of local coordinates
154 std::shared_ptr<GeomAPI_XY> aDir(new GeomAPI_XY(theDeltaX, theDeltaY));
155 std::shared_ptr<GeomAPI_XY> aStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
156 aLine->attribute(SketchPlugin_Line::START_ID()))->pnt()->xy();
157 std::shared_ptr<GeomAPI_XY> aEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
158 aLine->attribute(SketchPlugin_Line::END_ID()))->pnt()->xy();
159 std::shared_ptr<GeomAPI_Dir2d> aLineDir(new GeomAPI_Dir2d(aEndPnt->decreased(aStartPnt)));
160 double dX = aDir->dot(aLineDir->xy());
161 double dY = -aDir->cross(aLineDir->xy());
163 myFlyoutUpdate = true;
164 std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
165 aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
166 aPoint->setValue(aPoint->x() + dX, aPoint->y() + dY);
167 myFlyoutUpdate = false;
170 void SketchPlugin_ConstraintLength::attributeChanged(const std::string& theID) {
171 if (theID == SketchPlugin_Constraint::ENTITY_A())
173 std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
174 ModelAPI_AttributeDouble>(attribute(SketchPlugin_Constraint::VALUE()));
175 if (!aValueAttr->isInitialized()) { // only if it is not initialized, try to compute the current value
176 std::shared_ptr<GeomAPI_Pnt> aPoint1, aPoint2;
177 std::shared_ptr<GeomDataAPI_Point2D> aStartPoint, anEndPoint;
178 if (getPoints(aPoint1, aPoint2, aStartPoint, anEndPoint)) {
179 double aLength = aPoint1->distance(aPoint2);
180 aValueAttr->setValue(aLength);
183 } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
184 myFlyoutUpdate = true;
185 // Recalculate flyout point in local coordinates of the line:
186 // the X coordinate is a length of projection of the flyout point on the line
187 // the Y coordinate is a distance from the point to the line
188 std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
189 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
190 attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
191 AttributeRefAttrPtr aLineAttr = std::dynamic_pointer_cast<ModelAPI_AttributeRefAttr>(
192 attribute(SketchPlugin_Constraint::ENTITY_A()));
193 if (!aLineAttr || !aLineAttr->isObject())
195 FeaturePtr aLine = ModelAPI_Feature::feature(aLineAttr->object());
196 if (!aLine || aLine->getKind() != SketchPlugin_Line::ID())
199 std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
200 std::shared_ptr<GeomAPI_XY> aStartPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
201 aLine->attribute(SketchPlugin_Line::START_ID()))->pnt()->xy();
202 std::shared_ptr<GeomAPI_XY> aEndPnt = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
203 aLine->attribute(SketchPlugin_Line::END_ID()))->pnt()->xy();
205 std::shared_ptr<GeomAPI_Dir2d> aLineDir(new GeomAPI_Dir2d(aEndPnt->decreased(aStartPnt)));
206 std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aStartPnt);
207 double X = aFlyoutDir->dot(aLineDir->xy());
208 double Y = -aFlyoutDir->cross(aLineDir->xy());
209 aFlyoutAttr->setValue(X, Y);
210 myFlyoutUpdate = false;