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 email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
20 #include "SketchPlugin_Arc.h"
21 #include "SketchPlugin_Sketch.h"
22 #include <SketchPlugin_ConstraintCoincidence.h>
23 #include <SketchPlugin_ConstraintTangent.h>
25 #include <Events_Loop.h>
26 #include <ModelAPI_Data.h>
27 #include <ModelAPI_ResultConstruction.h>
28 #include <ModelAPI_AttributeDouble.h>
29 #include <ModelAPI_AttributeRefAttr.h>
30 #include <ModelAPI_AttributeSelection.h>
31 #include <ModelAPI_AttributeString.h>
32 #include <ModelAPI_Events.h>
33 #include <ModelAPI_Validator.h>
34 #include <ModelAPI_Session.h>
35 #include <ModelAPI_Tools.h>
37 #include <GeomAPI_Ax2.h>
38 #include <GeomAPI_Circ2d.h>
39 #include <GeomAPI_Circ.h>
40 #include <GeomAPI_Dir2d.h>
41 #include <GeomAPI_Dir.h>
42 #include <GeomAPI_Lin2d.h>
43 #include <GeomAPI_Lin.h>
44 #include <GeomAPI_Pnt2d.h>
45 #include <GeomAPI_Vertex.h>
46 #include <GeomAPI_XY.h>
47 #include <GeomDataAPI_Point2D.h>
48 #include <GeomDataAPI_Dir.h>
49 #include <GeomAlgoAPI_PointBuilder.h>
50 #include <GeomAlgoAPI_EdgeBuilder.h>
51 #include <GeomAlgoAPI_CompoundBuilder.h>
55 const double tolerance = 1e-7;
56 const double paramTolerance = 1.e-4;
57 const double PI = 3.141592653589793238463;
60 SketchPlugin_Arc::SketchPlugin_Arc()
61 : SketchPlugin_SketchEntity()
66 void SketchPlugin_Arc::initDerivedClassAttributes()
68 data()->addAttribute(CENTER_ID(), GeomDataAPI_Point2D::typeId());
69 data()->addAttribute(START_ID(), GeomDataAPI_Point2D::typeId());
70 data()->addAttribute(END_ID(), GeomDataAPI_Point2D::typeId());
72 data()->addAttribute(EXTERNAL_ID(), ModelAPI_AttributeSelection::typeId());
73 ModelAPI_Session::get()->validators()->registerNotObligatory(getKind(), EXTERNAL_ID());
75 AttributeBooleanPtr isReversed = std::dynamic_pointer_cast<ModelAPI_AttributeBoolean>(
76 data()->addAttribute(REVERSED_ID(), ModelAPI_AttributeBoolean::typeId()));
78 data()->addAttribute(RADIUS_ID(), ModelAPI_AttributeDouble::typeId());
79 data()->addAttribute(ANGLE_ID(), ModelAPI_AttributeDouble::typeId());
81 // set after all to avoid in attributeChanged reference to not existing attributes
82 if (!isReversed->isInitialized()) {
83 isReversed->setValue(false);
87 void SketchPlugin_Arc::execute()
89 SketchPlugin_Sketch* aSketch = sketch();
94 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr =
95 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
96 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr =
97 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(START_ID()));
98 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr =
99 std::dynamic_pointer_cast<GeomDataAPI_Point2D>(data()->attribute(END_ID()));
100 if(!aCenterAttr->isInitialized() || !aStartAttr->isInitialized() || !anEndAttr->isInitialized()) {
104 // Make a visible point.
105 SketchPlugin_Sketch::createPoint2DResult(this, sketch(), CENTER_ID(), 0);
107 // Make a visible arc.
108 std::shared_ptr<GeomAPI_Pnt> aCenter(aSketch->to3D(aCenterAttr->x(), aCenterAttr->y()));
109 std::shared_ptr<GeomAPI_Pnt> aStart(aSketch->to3D(aStartAttr->x(), aStartAttr->y()));
110 std::shared_ptr<GeomAPI_Pnt> anEnd(aSketch->to3D(anEndAttr->x(), anEndAttr->y()));
111 std::shared_ptr<GeomDataAPI_Dir> aNDir = std::dynamic_pointer_cast<GeomDataAPI_Dir>(
112 aSketch->data()->attribute(SketchPlugin_Sketch::NORM_ID()));
113 std::shared_ptr<GeomAPI_Dir> aNormal(new GeomAPI_Dir(aNDir->x(), aNDir->y(), aNDir->z()));
115 if (myParamBefore == 0) { // parameter has not been calculate yet
116 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(
117 new GeomAPI_Circ2d(aCenterAttr->pnt(), aStartAttr->pnt()));
118 aCircleForArc->parameter(anEndAttr->pnt(), paramTolerance, myParamBefore);
121 GeomShapePtr anArcShape;
122 if (fabs(myParamBefore - 2.0 * PI) < paramTolerance) {
123 anArcShape = GeomAlgoAPI_EdgeBuilder::lineCircle(aCenter, aNormal, aStart->distance(aCenter));
126 anArcShape = boolean(REVERSED_ID())->value() ?
127 GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, anEnd, aStart, aNormal)
128 : GeomAlgoAPI_EdgeBuilder::lineCircleArc(aCenter, aStart, anEnd, aNormal);
131 std::shared_ptr<ModelAPI_ResultConstruction> aResult = document()->createConstruction(data(), 1);
132 aResult->setShape(anArcShape);
133 aResult->setIsInHistory(false);
134 setResult(aResult, 1);
137 void SketchPlugin_Arc::move(double theDeltaX, double theDeltaY)
139 std::shared_ptr<ModelAPI_Data> aData = data();
140 if(!aData->isValid()) {
144 bool aWasBlocked = aData->blockSendAttributeUpdated(true);
146 std::shared_ptr<GeomDataAPI_Point2D> aCenter = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
147 attribute(CENTER_ID()));
148 if(aCenter->isInitialized()) {
149 aCenter->move(theDeltaX, theDeltaY);
152 std::shared_ptr<GeomDataAPI_Point2D> aStart = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
153 attribute(START_ID()));
154 if(aStart->isInitialized()) {
155 aStart->move(theDeltaX, theDeltaY);
158 std::shared_ptr<GeomDataAPI_Point2D> anEnd = std::dynamic_pointer_cast<GeomDataAPI_Point2D>(
159 attribute(END_ID()));
160 if(anEnd->isInitialized()) {
161 anEnd->move(theDeltaX, theDeltaY);
164 aData->blockSendAttributeUpdated(aWasBlocked);
167 bool SketchPlugin_Arc::isFixed()
169 return data()->selection(EXTERNAL_ID())->context().get() != NULL;
172 void SketchPlugin_Arc::attributeChanged(const std::string& theID)
174 std::shared_ptr<GeomDataAPI_Point2D> aCenterAttr = std::dynamic_pointer_cast<
175 GeomDataAPI_Point2D>(data()->attribute(CENTER_ID()));
176 std::shared_ptr<GeomDataAPI_Point2D> aStartAttr = std::dynamic_pointer_cast<
177 GeomDataAPI_Point2D>(data()->attribute(START_ID()));
178 std::shared_ptr<GeomDataAPI_Point2D> anEndAttr = std::dynamic_pointer_cast<
179 GeomDataAPI_Point2D>(data()->attribute(END_ID()));
181 // The second condition for unability to move external segments anywhere.
182 if(theID == EXTERNAL_ID() || isFixed()) {
183 std::shared_ptr<GeomAPI_Shape> aSelection = data()->selection(EXTERNAL_ID())->value();
185 // empty shape in selection shows that the shape is equal to context
186 ResultPtr anExtRes = selection(EXTERNAL_ID())->context();
188 aSelection = anExtRes->shape();
191 // update arguments due to the selection value
192 if(aSelection && !aSelection->isNull() && aSelection->isEdge()) {
193 std::shared_ptr<GeomAPI_Edge> anEdge( new GeomAPI_Edge(aSelection));
194 std::shared_ptr<GeomAPI_Circ> aCirc = anEdge->circle();
196 bool aWasBlocked = data()->blockSendAttributeUpdated(true);
197 aCenterAttr->setValue(sketch()->to2D(aCirc->center()));
198 aStartAttr->setValue(sketch()->to2D(anEdge->firstPoint()));
199 anEndAttr->setValue(sketch()->to2D(anEdge->lastPoint()));
200 data()->blockSendAttributeUpdated(aWasBlocked, false);
202 std::shared_ptr<GeomAPI_Circ2d> aCircle2d =
203 std::shared_ptr<GeomAPI_Circ2d>(new GeomAPI_Circ2d(aCenterAttr->pnt(),
206 double anEndParam = 0.0;
207 aCircle2d->parameter(anEndAttr->pnt(), paramTolerance, anEndParam);
208 myParamBefore = anEndParam;
210 double aMidParam = anEndParam / 2.0;
211 std::shared_ptr<GeomAPI_Pnt2d> aMidPnt2d;
212 aCircle2d->D0(aMidParam, aMidPnt2d);
213 std::shared_ptr<GeomAPI_Pnt> aMinPnt = sketch()->to3D(aMidPnt2d->x(), aMidPnt2d->y());
214 double aStartParam = 0.0;
215 aCirc->parameter(anEdge->firstPoint(), paramTolerance, aStartParam);
216 aCirc->parameter(aMinPnt, paramTolerance, aMidParam);
217 aCirc->parameter(anEdge->lastPoint(), paramTolerance, anEndParam);
220 anEndParam -= aStartParam;
221 aMidParam -= aStartParam;
222 if (anEndParam < 0.0)
223 anEndParam += 2.0 * PI;
225 aMidParam += 2.0 * PI;
227 aWasBlocked = data()->blockSendAttributeUpdated(true);
228 if(aMidParam < anEndParam) {
233 data()->blockSendAttributeUpdated(aWasBlocked, false);
236 } else if(theID == CENTER_ID() || theID == START_ID() || theID == END_ID()) {
237 if(!aCenterAttr->isInitialized()
238 || !aStartAttr->isInitialized()
239 || !anEndAttr->isInitialized()) {
242 std::shared_ptr<GeomAPI_Pnt2d> aCenter = aCenterAttr->pnt();
243 std::shared_ptr<GeomAPI_Pnt2d> aStart = aStartAttr->pnt();
244 std::shared_ptr<GeomAPI_Pnt2d> anEnd = anEndAttr->pnt();
245 double aRadius = aCenter->distance(aStart);
246 if (aRadius < tolerance)
248 std::shared_ptr<GeomAPI_Circ2d> aCircleForArc(new GeomAPI_Circ2d(aCenter, aStart));
250 // Do not recalculate REVERSED flag if the arc is not consistent
251 std::shared_ptr<GeomAPI_Pnt2d> aProjection = aCircleForArc->project(anEnd);
252 if (aProjection && anEnd->distance(aProjection) <= tolerance) {
253 double aParameterNew = 0.0;
254 if(aCircleForArc->parameter(anEnd, paramTolerance, aParameterNew)) {
255 bool aWasBlocked = data()->blockSendAttributeUpdated(true);
256 if(myParamBefore <= PI / 2.0 && aParameterNew >= PI * 1.5) {
257 if(!boolean(REVERSED_ID())->value()) {
258 boolean(REVERSED_ID())->setValue(true);
260 } else if(myParamBefore >= PI * 1.5 && aParameterNew <= PI / 2.0) {
261 if(boolean(REVERSED_ID())->value()) {
262 boolean(REVERSED_ID())->setValue(false);
265 data()->blockSendAttributeUpdated(aWasBlocked, false);
267 if (fabs(aParameterNew) < paramTolerance ||
268 fabs(aParameterNew - 2.0 * PI) < paramTolerance)
269 aParameterNew = 2.0 * PI;
270 myParamBefore = aParameterNew;
276 if(aCenterAttr->isInitialized() && aStartAttr->isInitialized()) {
277 aRadius = aCenterAttr->pnt()->distance(aStartAttr->pnt());
278 if(anEndAttr->isInitialized()) {
279 if(aStartAttr->pnt()->isEqual(anEndAttr->pnt())) {
282 GeomAPI_Circ2d aCircleForArc(aCenterAttr->pnt(), aStartAttr->pnt());
283 double aStartParam, anEndParam;
284 aCircleForArc.parameter(aStartAttr->pnt(), paramTolerance, aStartParam);
285 aCircleForArc.parameter(anEndAttr->pnt(), paramTolerance, anEndParam);
286 anAngle = (anEndParam - aStartParam) / PI * 180.0;
287 if(isReversed()) anAngle = 360.0 - anAngle;
292 bool aWasBlocked = data()->blockSendAttributeUpdated(true);
293 real(RADIUS_ID())->setValue(aRadius);
294 real(ANGLE_ID())->setValue(anAngle);
295 data()->blockSendAttributeUpdated(aWasBlocked, false);
298 void SketchPlugin_Arc::setReversed(bool isReversed)
300 boolean(REVERSED_ID())->setValue(isReversed);
303 bool SketchPlugin_Arc::isReversed()
305 return boolean(REVERSED_ID())->value();