#include <ray.h>
Inheritance diagram for AverageNN:
Public Methods | |
| AverageNN () | |
| ~AverageNN () | |
| bool | CastNext () |
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Definition at line 130 of file ray.h.
00130 {};
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Definition at line 131 of file ray.h.
00131 {};
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Reimplemented from Ray. Definition at line 547 of file ray.cpp. References Data::GetDensity(), Transfunc::GetDensityColor(), Transfunc::GetOpacity(), VECTOR::length(), Ray::m_alpha, Ray::m_backgroundcolor, Ray::m_currentcolor, Ray::m_currentpos, Ray::m_data, Ray::m_direction, Ray::m_radius, Ray::m_startpoint, Ray::m_steplength, Ray::m_tf, Ray::mx, Ray::my, Ray::mz, ROUND, VECTOR::x, VECTOR::y, and VECTOR::z.
00547 {
00548 if(m_data == NULL) return false;
00549 if(m_tf == NULL) return false;
00550 int sum = 0;
00551 int counter = 0;
00552 int step_count = 0;
00553 bool first = true;
00554 VECTOR distancetomidpoint = VECTOR(mx/2.0f,my/2.0f,mz/2.0f)-m_currentpos;
00555 int steps = (int)((distancetomidpoint.length() + m_radius)/m_steplength);
00556 do {
00557
00558 if((m_currentpos.x >= 0.0)&&(m_currentpos.y >= 0.0)&&(m_currentpos.z >= 0.0)&&(m_currentpos.x < mx)&&(m_currentpos.y < my)&&(m_currentpos.z < mz)) {
00559 if(first) {
00560 m_startpoint = VECTOR(m_currentpos.x,m_currentpos.y,m_currentpos.z);
00561 first = false;
00562 }
00563 int d = m_data->GetDensity((int)ROUND(m_currentpos.x),(int)ROUND(m_currentpos.y),(int)ROUND(m_currentpos.z));
00564 sum += d;
00565 counter++;
00566 }
00567 // calculate new position
00568 m_currentpos += m_steplength*m_direction;
00569
00570 step_count++;
00571 }while(step_count <= steps);
00572 int density = ROUND(sum/counter);
00573 m_currentcolor = m_tf->GetDensityColor(density);
00574 m_alpha = m_tf->GetOpacity(density);
00575 if(density == 0) {
00576 m_currentcolor = Color(0,0,0);
00577 m_alpha = 1.0;
00578 }
00579 if(m_alpha < 1.0 ) m_currentcolor += m_backgroundcolor*(1.0 - m_alpha);
00580 return true;
00581 }
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1.3-rc2