classRigidScafold.cpp

00001 #include "classRigidScafold.h"
00002  
00003  RigidScafold::RigidScafold() {
00004  }
00005  
00006  RigidScafold::~RigidScafold() {
00007  }
00008  
00009 
00010  void  RigidScafold::buildCircularScafold(float _radius, vector2Dd _pos, int _numScafoldPoints) {
00011     sizeScafold=_radius;
00012     centerScafold=_pos;
00013     scafold.resize(_numScafoldPoints);
00014     float angInc= 2.0 * PI / _numScafoldPoints;
00015     float ang=0;
00016     for (int i = 0; i < scafold.size(); i++) {
00017         scafold[i]= vector2Dd( cos(ang)* _radius, sin(ang)* sizeScafold )   + centerScafold; 
00018         // note: I cannot do vector2Dd( cos(ang), sin(ang) ) * _radius because vector2Dd would give (0,0)
00019         ang+=angInc;
00020     }
00021 }
00022 
00023 // Modifying the scafold (resizing, rotating): 
00024 // Note: in case of elastic loop, the mass-loop may be reinitialized or not (if the rigid loop is used as "attractor" only):
00025 
00026  void  RigidScafold::resizeDimensionScafold(float _newSize) {
00027     resizeFactorDimensionScafold(_newSize/sizeScafold);
00028     sizeScafold=_newSize;
00029  }
00030 
00031  void  RigidScafold::resizeFactorDimensionScafold(float _factor) {
00032     for (int i = 0; i < scafold.size(); i++) {
00033         scafold[i] = ( scafold[i]-centerScafold)*_factor+centerScafold; 
00034     }
00035     sizeScafold*=_factor;
00036 }
00037 
00038 void RigidScafold::rotateScafold(float alphadeg) { 
00039 // note: rotate around the centerScafold:
00040     for (int i = 0; i < scafold.size(); i++) {
00041         scafold[i]=(scafold[i]-centerScafold).getRotatedRad(alphadeg)+centerScafold;
00042     }
00043 }
00044   
00045  void  RigidScafold::buildLine(float _length, float _angleDeg, vector2Dd _pos, int _numScafoldPoints) {
00046    scafold.resize(_numScafoldPoints);
00047    vector2Dd auxStep = vector2Dd(_length * cos(_angleDeg/180.0 * PI)/_numScafoldPoints, sin(_length * _angleDeg/180.0 * PI)/_numScafoldPoints ) ;
00048     for (int i = 0; i < scafold.size(); i++) {
00049         scafold[i]= auxStep * i + _pos;
00050     }
00051 }
00052 
00053   // Other functions to create letters, text, etc. 
00054   // ... TO DO ....
00055   
00056