Shamusworld >> Repos - architektonas/blob - src/base/rs_constructionline.cpp

   1 // rs_constructionline.cpp
   2 //
   3 // Part of the Architektonas Project
   4 // Originally part of QCad Community Edition by Andrew Mustun
   5 // Extensively rewritten and refactored by James L. Hammons
   6 // (C) 2010 Underground Software
   7 //
   8 // JLH = James L. Hammons <jlhamm@acm.org>
   9 //
  10 // Who  When        What
  11 // ---  ----------  -----------------------------------------------------------
  12 // JLH  05/28/2010  Added this text. :-)
  13 // JLH  06/02/2010  Moved implementation from header to here WHERE IT BELONGS.
  14 //
  15
  16 #include "rs_constructionline.h"
  17
  18 #include "rs_debug.h"
  19
  20 /**
  21  * Constructor.
  22  */
  23 RS_ConstructionLine::RS_ConstructionLine(RS_EntityContainer * parent,
  24         const RS_ConstructionLineData & d): RS_AtomicEntity(parent), data(d)
  25 {
  26         calculateBorders();
  27 }
  28
  29 /**
  30  * Destructor.
  31  */
  32 RS_ConstructionLine::~RS_ConstructionLine()
  33 {
  34 }
  35
  36 RS_Entity * RS_ConstructionLine::clone()
  37 {
  38         RS_ConstructionLine * c = new RS_ConstructionLine(*this);
  39         c->initId();
  40         return c;
  41 }
  42
  43 /**     @return RS2::EntityConstructionLine */
  44 /*virtual*/ RS2::EntityType RS_ConstructionLine::rtti() const
  45 {
  46         return RS2::EntityConstructionLine;
  47 }
  48
  49 /**
  50  * @todo
  51  * @return Start point of the entity.
  52  */
  53 /*virtual*/ Vector RS_ConstructionLine::getStartpoint() const
  54 {
  55         return Vector(false);
  56 }
  57
  58 /**
  59  * @todo
  60  * @return End point of the entity.
  61  */
  62 /*virtual*/ Vector RS_ConstructionLine::getEndpoint() const
  63 {
  64         return Vector(false);
  65 }
  66
  67 /** @return Copy of data that defines the line. */
  68 RS_ConstructionLineData RS_ConstructionLine::getData() const
  69 {
  70         return data;
  71 }
  72
  73 /** @return First definition point. */
  74 Vector RS_ConstructionLine::getPoint1() const
  75 {
  76         return data.point1;
  77 }
  78 /** @return Second definition point. */
  79 Vector RS_ConstructionLine::getPoint2() const
  80 {
  81         return data.point2;
  82 }
  83
  84 void RS_ConstructionLine::calculateBorders()
  85 {
  86         minV = Vector::minimum(data.point1, data.point2);
  87         maxV = Vector::maximum(data.point1, data.point2);
  88 }
  89
  90 Vector RS_ConstructionLine::getNearestEndpoint(const Vector & coord, double * dist)
  91 {
  92         double dist1, dist2;
  93         Vector * nearerPoint;
  94
  95         dist1 = data.point1.distanceTo(coord);
  96         dist2 = data.point2.distanceTo(coord);
  97
  98         if (dist2 < dist1)
  99         {
 100                 if (dist != NULL)
 101                         *dist = dist2;
 102
 103                 nearerPoint = &data.point2;
 104         }
 105         else
 106         {
 107                 if (dist != NULL)
 108                         *dist = dist1;
 109
 110                 nearerPoint = &data.point1;
 111         }
 112
 113         return *nearerPoint;
 114 }
 115
 116 Vector RS_ConstructionLine::getNearestPointOnEntity(const Vector & coord,
 117         bool /*onEntity*/, double * /*dist*/, RS_Entity ** entity)
 118 {
 119         if (entity != NULL)
 120                 *entity = this;
 121
 122         Vector ae = data.point2-data.point1;
 123         Vector ea = data.point1-data.point2;
 124         Vector ap = coord-data.point1;
 125         Vector ep = coord-data.point2;
 126
 127         if (ae.magnitude() < 1.0e-6 || ea.magnitude() < 1.0e-6)
 128                 return Vector(false);
 129
 130         // Orthogonal projection from both sides:
 131         Vector ba = ae * Vector::dotP(ae, ap) / (ae.magnitude() * ae.magnitude());
 132         Vector be = ea * Vector::dotP(ea, ep) / (ea.magnitude() * ea.magnitude());
 133
 134         return data.point1 + ba;
 135 }
 136
 137 Vector RS_ConstructionLine::getNearestCenter(const Vector & /*coord*/, double * dist)
 138 {
 139         if (dist != NULL)
 140                 *dist = RS_MAXDOUBLE;
 141
 142         return Vector(false);
 143 }
 144
 145 Vector RS_ConstructionLine::getNearestMiddle(const Vector & /*coord*/, double * dist)
 146 {
 147         if (dist != NULL)
 148                 *dist = RS_MAXDOUBLE;
 149
 150         return Vector(false);
 151 }
 152
 153 Vector RS_ConstructionLine::getNearestDist(double /*distance*/, const Vector & /*coord*/,
 154         double * dist)
 155 {
 156         if (dist != NULL)
 157                 *dist = RS_MAXDOUBLE;
 158
 159         return Vector(false);
 160 }
 161
 162 double RS_ConstructionLine::getDistanceToPoint(const Vector& coord,
 163         RS_Entity** entity,
 164         RS2::ResolveLevel /*level*/, double /*solidDist*/)
 165 {
 166         RS_DEBUG->print("RS_ConstructionLine::getDistanceToPoint");
 167
 168         if (entity != NULL)
 169                 *entity = this;
 170
 171         double dist = RS_MAXDOUBLE;
 172         Vector ae = data.point2-data.point1;
 173         Vector ea = data.point1-data.point2;
 174         Vector ap = coord-data.point1;
 175         Vector ep = coord-data.point2;
 176
 177         if (ae.magnitude() < 1.0e-6 || ea.magnitude() < 1.0e-6)
 178                 return dist;
 179
 180         // Orthogonal projection from both sides:
 181         Vector ba = ae * Vector::dotP(ae, ap) / RS_Math::pow(ae.magnitude(), 2);
 182         Vector be = ea * Vector::dotP(ea, ep) / RS_Math::pow(ea.magnitude(), 2);
 183
 184         RS_DEBUG->print("ba: %f", ba.magnitude());
 185         RS_DEBUG->print("ae: %f", ae.magnitude());
 186
 187         Vector cp = Vector::crossP(ap, ae);
 188         dist = cp.magnitude() / ae.magnitude();
 189
 190         return dist;
 191 }
 192
 193 void RS_ConstructionLine::move(Vector offset)
 194 {
 195         data.point1.move(offset);
 196         data.point2.move(offset);
 197         //calculateBorders();
 198 }
 199
 200 void RS_ConstructionLine::rotate(Vector center, double angle)
 201 {
 202         data.point1.rotate(center, angle);
 203         data.point2.rotate(center, angle);
 204         //calculateBorders();
 205 }
 206
 207 void RS_ConstructionLine::scale(Vector center, Vector factor)
 208 {
 209         data.point1.scale(center, factor);
 210         data.point2.scale(center, factor);
 211         //calculateBorders();
 212 }
 213
 214 void RS_ConstructionLine::mirror(Vector axisPoint1, Vector axisPoint2)
 215 {
 216         data.point1.mirror(axisPoint1, axisPoint2);
 217         data.point2.mirror(axisPoint1, axisPoint2);
 218 }
 219
 220 /**
 221  * Dumps the point's data to stdout.
 222  */
 223 std::ostream & operator<<(std::ostream & os, const RS_ConstructionLine & l)
 224 {
 225         os << " ConstructionLine: " << l.getData() << "\n";
 226         return os;
 227 }