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Issue #1834: Fix length of lines
[modules/shaper.git] / src / SketcherPrs / SketcherPrs_Tangent.cpp
1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
2
3 // File:        SketcherPrs_Tangent.cpp
4 // Created:     16 February 2015
5 // Author:      Vitaly SMETANNIKOV
6
7 #include "SketcherPrs_Tangent.h"
8 #include "SketcherPrs_Tools.h"
9 #include "SketcherPrs_PositionMgr.h"
10
11 #include <GeomAPI_Curve.h>
12
13 #include <SketchPlugin_Constraint.h>
14
15 #include <GeomAdaptor_Curve.hxx>
16 #include <Prs3d_Root.hxx>
17 #include <Graphic3d_AspectLine3d.hxx>
18 #include <StdPrs_DeflectionCurve.hxx>
19
20
21 IMPLEMENT_STANDARD_HANDLE(SketcherPrs_Tangent, SketcherPrs_SymbolPrs);
22 IMPLEMENT_STANDARD_RTTIEXT(SketcherPrs_Tangent, SketcherPrs_SymbolPrs);
23
24 static Handle(Image_AlienPixMap) MyPixMap;
25
26 SketcherPrs_Tangent::SketcherPrs_Tangent(ModelAPI_Feature* theConstraint, 
27                                            const std::shared_ptr<GeomAPI_Ax3>& thePlane) 
28  : SketcherPrs_SymbolPrs(theConstraint, thePlane)
29 {
30   // Init default points
31   myPntArray = new Graphic3d_ArrayOfPoints(2);
32   myPntArray->AddVertex(0., 0., 0.);
33   myPntArray->AddVertex(0., 0., 0.);
34 }  
35
36 bool SketcherPrs_Tangent::IsReadyToDisplay(ModelAPI_Feature* theConstraint,
37                                            const std::shared_ptr<GeomAPI_Ax3>&/* thePlane*/)
38 {
39   bool aReadyToDisplay = false;
40
41   ObjectPtr aObj1 = 
42     SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_A());
43   ObjectPtr aObj2 = 
44     SketcherPrs_Tools::getResult(theConstraint, SketchPlugin_Constraint::ENTITY_B());
45
46   aReadyToDisplay = SketcherPrs_Tools::getShape(aObj1).get() != NULL &&
47                     SketcherPrs_Tools::getShape(aObj2).get() != NULL;
48
49   return aReadyToDisplay;
50 }
51
52 bool SketcherPrs_Tangent::updateIfReadyToDisplay(double theStep) const
53 {
54   if (!IsReadyToDisplay(myConstraint, myPlane))
55     return false;
56
57   ObjectPtr aObj1 = 
58     SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
59   ObjectPtr aObj2 = 
60     SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
61
62   // Compute points coordinates
63   SketcherPrs_PositionMgr* aMgr = SketcherPrs_PositionMgr::get();
64   gp_Pnt aP1 = aMgr->getPosition(aObj1, this, theStep);
65   gp_Pnt aP2 = aMgr->getPosition(aObj2, this, theStep);
66   myPntArray->SetVertice(1, aP1);
67   myPntArray->SetVertice(2, aP2);
68   return true;
69 }
70
71 void SketcherPrs_Tangent::drawLines(const Handle(Prs3d_Presentation)& thePrs, 
72                                     Quantity_Color theColor) const
73 {
74   Handle(Graphic3d_Group) aGroup = Prs3d_Root::NewGroup(thePrs);
75
76   Handle(Graphic3d_AspectLine3d) aLineAspect = 
77     new Graphic3d_AspectLine3d(theColor, Aspect_TOL_SOLID, 2);
78   aGroup->SetPrimitivesAspect(aLineAspect);
79
80   ObjectPtr aObj1 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
81   ObjectPtr aObj2 = SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_B());
82
83   std::shared_ptr<GeomAPI_Shape> aShape1 = SketcherPrs_Tools::getShape(aObj1);
84   std::shared_ptr<GeomAPI_Shape> aShape2 = SketcherPrs_Tools::getShape(aObj2);
85
86   if ((aShape1.get() == NULL) || (aShape2.get() == NULL))
87     return;
88   drawShape(aShape1, thePrs);
89   drawShape(aShape2, thePrs);
90 }
91