#include <ray.h>
Inheritance diagram for MaxIntensityTRI:
Public Methods | |
| MaxIntensityTRI () | |
| ~MaxIntensityTRI () | |
| bool | CastNext () |
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Definition at line 109 of file ray.h.
00109 {};
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Definition at line 110 of file ray.h.
00110 {};
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Reimplemented from FirstHitTRI. Definition at line 439 of file ray.cpp. References FirstHitTRI::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, VECTOR::x, VECTOR::y, and VECTOR::z.
00439 {
00440 if(m_data == NULL) return false;
00441 if(m_tf == NULL) return false;
00442 int maxintensity = 0;
00443 int step_count = 0;
00444 VECTOR distancetomidpoint = VECTOR(mx/2.0f,my/2.0f,mz/2.0f)-m_currentpos;
00445 int steps = (int)((distancetomidpoint.length() + m_radius)/m_steplength);
00446 bool first = true;
00447 do {
00448
00449 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)) {
00450 if(first) {
00451 m_startpoint = VECTOR(m_currentpos.x,m_currentpos.y,m_currentpos.z);
00452 first = false;
00453 }
00454 float d = GetDensity(m_currentpos);
00455 if(d > (float)maxintensity) {
00456 maxintensity = d;
00457 }
00458 // calculate new position
00459 }
00460 m_currentpos += m_steplength*m_direction;
00461 step_count++;
00462 }while(step_count <= steps);
00463
00464 m_currentcolor = m_tf->GetDensityColor(maxintensity);
00465 m_alpha = m_tf->GetOpacity(maxintensity);
00466 if(maxintensity == 0) {
00467 m_currentcolor = Color(0,0,0);
00468 m_alpha = 1.0;
00469 }
00470 if(m_alpha < 1.0 ) {
00471 m_currentcolor += m_backgroundcolor*(1.0f-m_alpha);
00472 }
00473 return true;
00474 }
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1.3-rc2