1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
3 // File: SketchPlugin_ConstraintDistance.cpp
4 // Created: 23 May 2014
5 // Author: Artem ZHIDKOV
7 #include "SketchPlugin_ConstraintDistance.h"
8 #include <SketchPlugin_Point.h>
9 #include <SketchPlugin_Circle.h>
10 #include <SketchPlugin_Line.h>
12 #include <SketcherPrs_Tools.h>
13 #include <SketcherPrs_Factory.h>
15 #include <GeomAPI_Dir2d.h>
16 #include <GeomAPI_Lin2d.h>
17 #include <GeomAPI_Pnt2d.h>
18 #include <GeomAPI_XY.h>
19 #include <GeomDataAPI_Point2D.h>
21 #include <ModelAPI_AttributeDouble.h>
22 #include <ModelAPI_Data.h>
24 #include <Config_PropManager.h>
28 const double tolerance = 1e-7;
31 SketchPlugin_ConstraintDistance::SketchPlugin_ConstraintDistance()
33 myFlyoutUpdate = false;
36 //*************************************************************************************
37 void SketchPlugin_ConstraintDistance::initAttributes()
39 data()->addAttribute(SketchPlugin_Constraint::VALUE(), ModelAPI_AttributeDouble::typeId());
40 data()->addAttribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT(), GeomDataAPI_Point2D::typeId());
41 data()->addAttribute(SketchPlugin_Constraint::ENTITY_A(), ModelAPI_AttributeRefAttr::typeId());
42 data()->addAttribute(SketchPlugin_Constraint::ENTITY_B(), ModelAPI_AttributeRefAttr::typeId());
45 //*************************************************************************************
46 void SketchPlugin_ConstraintDistance::execute()
48 std::shared_ptr<ModelAPI_Data> aData = data();
49 AttributeDoublePtr anAttrValue = std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(
50 aData->attribute(SketchPlugin_Constraint::VALUE()));
52 if(anAttrValue->isInitialized())
55 double aDistance = calculateCurrentDistance();
57 anAttrValue->setValue(aDistance);
60 // the value should to be computed here, not in the getAISObject in order to change the model value
61 // inside the object transaction. This is important for creating a constraint by preselection.
62 // The display of the presentation in this case happens after the transaction commit
63 std::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = std::dynamic_pointer_cast<
64 GeomDataAPI_Point2D>(aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
65 if(!aFlyOutAttr->isInitialized())
66 compute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT());
69 bool SketchPlugin_ConstraintDistance::compute(const std::string& theAttributeId)
71 if (theAttributeId != SketchPlugin_Constraint::FLYOUT_VALUE_PNT())
77 std::shared_ptr<GeomDataAPI_Point2D> aFlyOutAttr = std::dynamic_pointer_cast<
78 GeomDataAPI_Point2D>(attribute(theAttributeId));
79 if (fabs(aFlyOutAttr->x()) >= tolerance || fabs(aFlyOutAttr->y()) >= tolerance)
82 DataPtr aData = data();
83 std::shared_ptr<GeomDataAPI_Point2D> aPoint_A = SketcherPrs_Tools::getFeaturePoint(
84 aData, SketchPlugin_Constraint::ENTITY_A());
85 std::shared_ptr<GeomDataAPI_Point2D> aPoint_B = SketcherPrs_Tools::getFeaturePoint(
86 aData, SketchPlugin_Constraint::ENTITY_B());
88 std::shared_ptr<GeomAPI_Pnt2d> aPnt_A;
89 std::shared_ptr<GeomAPI_Pnt2d> aPnt_B;
91 if (aPoint_A && aPoint_B) {
92 aPnt_A = aPoint_A->pnt();
93 aPnt_B = aPoint_B->pnt();
94 } else if (!aPoint_A && aPoint_B) {
95 FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
96 aData, SketchPlugin_Constraint::ENTITY_A());
98 aPnt_B = aPoint_B->pnt();
99 aPnt_A = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_B);
101 } else if (aPoint_A && !aPoint_B) {
102 FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(
103 aData, SketchPlugin_Constraint::ENTITY_B());
105 aPnt_A = aPoint_A->pnt();
106 aPnt_B = SketcherPrs_Tools::getProjectionPoint(aLine, aPnt_A);
109 if (!aPnt_A || !aPnt_B)
112 std::shared_ptr<GeomAPI_Pnt> aPoint1 = sketch()->to3D(aPnt_A->x(), aPnt_A->y());
113 std::shared_ptr<GeomAPI_Pnt> aPoint2 = sketch()->to3D(aPnt_B->x(), aPnt_B->y());
114 // it is not possible to create lin2d on the points with equal position
115 if (aPoint1->distance(aPoint2) < tolerance)
118 std::shared_ptr<GeomAPI_Lin2d> aLine = std::shared_ptr<GeomAPI_Lin2d>(new GeomAPI_Lin2d(aPnt_A, aPnt_B));
119 double aDist = aPoint1->distance(aPoint2)/5.;
120 std::shared_ptr<GeomAPI_Pnt2d> aFPnt = aLine->shiftedLocation(aDist);
121 aFlyOutAttr->setValue(aFPnt);
126 //*************************************************************************************
127 AISObjectPtr SketchPlugin_ConstraintDistance::getAISObject(AISObjectPtr thePrevious)
132 AISObjectPtr anAIS = thePrevious;
134 anAIS = SketcherPrs_Factory::lengthDimensionConstraint(this, sketch()->coordinatePlane());
137 // Set color from preferences
138 std::vector<int> aRGB = Config_PropManager::color("Visualization", "sketch_dimension_color",
139 SKETCH_DIMENSION_COLOR);
140 anAIS->setColor(aRGB[0], aRGB[1], aRGB[2]);
144 //*************************************************************************************
145 void SketchPlugin_ConstraintDistance::move(double theDeltaX, double theDeltaY)
147 std::shared_ptr<ModelAPI_Data> aData = data();
148 if (!aData->isValid())
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<GeomDataAPI_Point2D> aPointA = SketcherPrs_Tools::getFeaturePoint(
154 data(), SketchPlugin_Constraint::ENTITY_A());
155 std::shared_ptr<GeomDataAPI_Point2D> aPointB = SketcherPrs_Tools::getFeaturePoint(
156 data(), SketchPlugin_Constraint::ENTITY_B());
158 std::shared_ptr<GeomAPI_XY> aStartPnt;
159 std::shared_ptr<GeomAPI_XY> aEndPnt;
160 if (aPointA && aPointB) {
161 aStartPnt = aPointA->pnt()->xy();
162 aEndPnt = aPointB->pnt()->xy();
163 } else if (aPointA) {
164 FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(data(),
165 SketchPlugin_Constraint::ENTITY_B());
168 std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointA->pnt();
169 aStartPnt = aPoint->xy();
170 aEndPnt = SketcherPrs_Tools::getProjectionPoint(aLine, aPoint)->xy();
171 } else if (aPointB) {
172 FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(data(),
173 SketchPlugin_Constraint::ENTITY_A());
176 std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointB->pnt();
177 aStartPnt = SketcherPrs_Tools::getProjectionPoint(aLine, aPoint)->xy();
178 aEndPnt = aPoint->xy();
182 std::shared_ptr<GeomAPI_Dir2d> aLineDir(new GeomAPI_Dir2d(aEndPnt->decreased(aStartPnt)));
183 double dX = aDir->dot(aLineDir->xy());
184 double dY = -aDir->cross(aLineDir->xy());
186 std::shared_ptr<GeomDataAPI_Point2D> aPoint = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
187 aData->attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
188 myFlyoutUpdate = true;
189 aPoint->setValue(aPoint->x() + dX, aPoint->y() + dY);
190 myFlyoutUpdate = false;
193 double SketchPlugin_ConstraintDistance::calculateCurrentDistance() const
195 double aDistance = -1.;
197 std::shared_ptr<ModelAPI_Data> aData = data();
198 std::shared_ptr<GeomDataAPI_Point2D> aPointA =
199 SketcherPrs_Tools::getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_A());
200 std::shared_ptr<GeomDataAPI_Point2D> aPointB =
201 SketcherPrs_Tools::getFeaturePoint(aData, SketchPlugin_Constraint::ENTITY_B());
203 if (aPointA.get() && aPointB.get()) { // both points
204 aDistance = aPointA->pnt()->distance(aPointB->pnt());
206 FeaturePtr aLineFeature;
207 std::shared_ptr<SketchPlugin_Line> aLine;
208 if (!aPointA.get() && aPointB.get()) { //Line and point
209 aLineFeature = SketcherPrs_Tools::getFeatureLine(aData, SketchPlugin_Constraint::ENTITY_A());
210 aLine = std::dynamic_pointer_cast<SketchPlugin_Line>(aLineFeature);
212 aDistance = aLine->distanceToPoint(aPointB->pnt());
214 } else if (aPointA.get() && !aPointB.get()) { // Point and line
215 aLineFeature = SketcherPrs_Tools::getFeatureLine(aData, SketchPlugin_Constraint::ENTITY_B());
216 aLine = std::dynamic_pointer_cast<SketchPlugin_Line>(aLineFeature);
218 aDistance = aLine->distanceToPoint(aPointA->pnt());
225 void SketchPlugin_ConstraintDistance::attributeChanged(const std::string& theID)
227 if (theID == SketchPlugin_Constraint::ENTITY_A() ||
228 theID == SketchPlugin_Constraint::ENTITY_B())
230 std::shared_ptr<ModelAPI_AttributeDouble> aValueAttr = std::dynamic_pointer_cast<
231 ModelAPI_AttributeDouble>(data()->attribute(SketchPlugin_Constraint::VALUE()));
232 if (!aValueAttr->isInitialized()) { // only if it is not initialized, try to compute the current value
233 double aDistance = calculateCurrentDistance();
234 if (aDistance > 0) { // set as value the length of updated references
235 aValueAttr->setValue(aDistance);
238 } else if (theID == SketchPlugin_Constraint::FLYOUT_VALUE_PNT() && !myFlyoutUpdate) {
239 myFlyoutUpdate = true;
240 // Recalculate flyout point in local coordinates of the distance constraint:
241 // the X coordinate is a length of projection of the flyout point on the line binding two distanced points
242 // or a line of projection of the distanced point onto the distanced segment
243 // the Y coordinate is a distance from the flyout point to the line
244 std::shared_ptr<GeomDataAPI_Point2D> aFlyoutAttr =
245 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
246 attribute(SketchPlugin_Constraint::FLYOUT_VALUE_PNT()));
247 std::shared_ptr<GeomAPI_Pnt2d> aFlyoutPnt = aFlyoutAttr->pnt();
249 std::shared_ptr<GeomDataAPI_Point2D> aPointA = SketcherPrs_Tools::getFeaturePoint(
250 data(), SketchPlugin_Constraint::ENTITY_A());
251 std::shared_ptr<GeomDataAPI_Point2D> aPointB = SketcherPrs_Tools::getFeaturePoint(
252 data(), SketchPlugin_Constraint::ENTITY_B());
254 std::shared_ptr<GeomAPI_XY> aStartPnt;
255 std::shared_ptr<GeomAPI_XY> aEndPnt;
256 if (aPointA && aPointB) {
257 aStartPnt = aPointA->pnt()->xy();
258 aEndPnt = aPointB->pnt()->xy();
259 } else if (aPointA) {
260 FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(data(),
261 SketchPlugin_Constraint::ENTITY_B());
264 std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointA->pnt();
265 aStartPnt = aPoint->xy();
266 aEndPnt = SketcherPrs_Tools::getProjectionPoint(aLine, aPoint)->xy();
267 } else if (aPointB) {
268 FeaturePtr aLine = SketcherPrs_Tools::getFeatureLine(data(),
269 SketchPlugin_Constraint::ENTITY_A());
272 std::shared_ptr<GeomAPI_Pnt2d> aPoint = aPointB->pnt();
273 aStartPnt = SketcherPrs_Tools::getProjectionPoint(aLine, aPoint)->xy();
274 aEndPnt = aPoint->xy();
278 std::shared_ptr<GeomAPI_Dir2d> aLineDir(new GeomAPI_Dir2d(aEndPnt->decreased(aStartPnt)));
279 std::shared_ptr<GeomAPI_XY> aFlyoutDir = aFlyoutPnt->xy()->decreased(aStartPnt);
281 double X = aFlyoutDir->dot(aLineDir->xy());
282 double Y = -aFlyoutDir->cross(aLineDir->xy());
283 aFlyoutAttr->setValue(X, Y);
284 myFlyoutUpdate = false;