void drawRedDotsPlane() { // Draw the stimulus ( red-dots plane ) glDisable(GL_COLOR_MATERIAL); glDisable(GL_BLEND); glDisable(GL_LIGHTING); // IMPORTANT Reset the previous status of transformation objectActiveTransformation.setIdentity(); objectActiveTransformation.translation() = projPointEyeRight + translationFactor; if ((int)factors["Translation"]==-1 || (int)factors["Translation"]==-2 ) objectActiveTransformation.linear().setIdentity(); else objectActiveTransformation.linear() = (AngleAxis<double>(eulerAngles.getYaw(), Vector3d::UnitY())*AngleAxis<double>(eulerAngles.getPitch(), Vector3d::UnitX())).toRotationMatrix(); glPushMatrix(); // PUSH MATRIX glLoadIdentity(); glMultMatrixd(objectActiveTransformation.data()); Vector3d posAlongLineOfSight = (headEyeCoords.getRigidStart().getFullTransformation().rotation())*(eyeRight-eyeCalibration); double argslant = acos( cos(toRadians(factors["Slant"]))*(focalDistance-posAlongLineOfSight.z() )/((focalDistance ))); instantPlaneSlant = toDegrees(argslant); switch ( (int) factors["Tilt"] ) { case 0: glRotated( instantPlaneSlant ,0,1,0); //objectActiveTransformation*=AngleAxisd( toRadians(-instantPlaneSlant), Vector3d::UnitY() ); glScaled(1/sin(toRadians( -90-factors["Slant"])),1,1); //backprojection phase break; case 90: glRotated( -instantPlaneSlant ,1,0,0); //objectActiveTransformation*=AngleAxisd( toRadians(-instantPlaneSlant), Vector3d::UnitX() ); glScaled(1,1/sin(toRadians( -90-factors["Slant"] )),1); //backprojection phase break; case 180: glRotated( -instantPlaneSlant ,0,1,0); //objectActiveTransformation*=AngleAxisd( toRadians(-instantPlaneSlant), Vector3d::UnitY() ); glScaled(1/sin(toRadians( -90-factors["Slant"] )),1,1); //backprojection phase break; case 270: glRotated( instantPlaneSlant ,1,0,0); //objectActiveTransformation*=AngleAxisd( toRadians(-instantPlaneSlant), Vector3d::UnitX() ); glScaled(1,1/sin(toRadians( -90-factors["Slant"] )),1); //backprojection phase break; } glGetDoublev(GL_MODELVIEW_MATRIX,objectActiveTransformation.data()); BoundChecker stimBoundariesActive(&cam, &redDotsPlane); BoundChecker stimBoundariesPassive(&camPassive, &redDotsPlane); stimOutside = ( stimBoundariesActive.checkOutside(objectActiveTransformation) || stimBoundariesPassive.checkOutside(objectActiveTransformation)); stimDrawer.draw(); glPopMatrix(); // POP MATRIX }
void update(int value) { // Conta i cicli di presentazione dello stimolo if ( (sumOutside > str2num<int>(parameters.find("StimulusCycles")) ) && (trialMode == STIMULUSMODE) ) { sumOutside=0; trialMode++; trialMode=trialMode%4; } if (conditionInside && (sumOutside*2 > str2num<int>(parameters.find("FixationCycles"))) && (trialMode ==FIXATIONMODE ) ) { sumOutside=0; trialMode++; trialMode=trialMode%4; stimulusDuration.start(); } if ( trialMode == STIMULUSMODE ) stimulusFrames++; if ( trialMode == FIXATIONMODE ) stimulusFrames=0; Screen screenPassive; screenPassive.setWidthHeight(SCREEN_WIDE_SIZE, SCREEN_WIDE_SIZE*SCREEN_HEIGHT/SCREEN_WIDTH); screenPassive.setOffset(alignmentX,alignmentY); screenPassive.setFocalDistance(0); screenPassive.transform(headEyeCoords.getRigidStart().getFullTransformation()*Translation3d(center)); camPassive.init(screenPassive); camPassive.setDrySimulation(true); camPassive.setEye(eyeRight); objectPassiveTransformation = ( camPassive.getModelViewMatrix()*objectActiveTransformation ); // Coordinates picker markers = optotrak.getAllPoints(); if ( isVisible(markers[1]) && isVisible(markers[2]) && isVisible(markers[3]) ) headEyeCoords.update(markers[1],markers[2],markers[3]); Affine3d active = headEyeCoords.getRigidStart().getFullTransformation(); eulerAngles.init( headEyeCoords.getRigidStart().getFullTransformation().rotation() ); eyeLeft = headEyeCoords.getLeftEye(); eyeRight = headEyeCoords.getRightEye(); cyclopeanEye = (eyeLeft+eyeRight)/2.0; // Projection of view normal on the focal plane Vector3d directionOfSight = (active.rotation()*Vector3d(0,0,-1)).normalized(); Eigen::ParametrizedLine<double,3> lineOfSightRight = Eigen::ParametrizedLine<double,3>::Through( eyeRight , eyeRight+directionOfSight ); Eigen::ParametrizedLine<double,3> lineOfSightLeft = Eigen::ParametrizedLine<double,3>::Through( eyeLeft, eyeLeft+directionOfSight ); double lineOfSightRightDistanceToFocalPlane = lineOfSightRight.intersection(focalPlane); double lineOfSightLeftDistanceToFocalPlane = lineOfSightLeft.intersection(focalPlane); //double lenghtOnZ = (active*(center-eyeCalibration )+eyeRight).z(); projPointEyeRight = lineOfSightRightDistanceToFocalPlane *(directionOfSight)+ (eyeRight); projPointEyeLeft= lineOfSightLeftDistanceToFocalPlane * (directionOfSight) + (eyeLeft); // second projection the fixation point computed with z non constant but perfectly parallel to projPointEyeRight lineOfSightRightDistanceToFocalPlane= (( active.rotation()*(center)) - eyeRight).norm(); Vector3d secondProjection = lineOfSightRightDistanceToFocalPlane *(directionOfSight)+ (eyeRight); if ( !zOnFocalPlane ) projPointEyeRight=secondProjection ; // Compute the translation to move the eye in order to avoid shear components Vector3d posAlongLineOfSight = (headEyeCoords.getRigidStart().getFullTransformation().rotation())*(eyeRight -eyeCalibration); switch ( (int)factors["Translation"] ) { case -1: case -2: translationFactor.setZero(); if ( trialMode == STIMULUSMODE ) projPointEyeRight=center; break; case 0: translationFactor.setZero(); break; case 1: translationFactor = factors["TranslationConstant"]*Vector3d(posAlongLineOfSight.z(),0,0); break; case 2: translationFactor = factors["TranslationConstant"]*Vector3d(0,posAlongLineOfSight.z(),0); break; } if ( passiveMode ) initProjectionScreen(0,headEyeCoords.getRigidStart().getFullTransformation()*Translation3d(Vector3d(0,0,focalDistance))); else initProjectionScreen(focalDistance,Affine3d::Identity()); checkBounds(); /**** Save to file part ****/ // Markers file save the used markers and time-depending experimental variable to a file // (Make sure that in passive experiment the list of variables has the same order) markersFile << trialNumber << " " << headCalibrationDone << " " << trialMode << " " ; markersFile <<markers[1].transpose() << " " << markers[2].transpose() << " " << markers[3].transpose() << " " << markers[17].transpose() << " " << markers[18].transpose() << " " ; markersFile << factors["Tilt"] << " " << factors["Slant"] << " " << factors["Translation"] << " " << factors["Onset"] << " " << factors["TranslationConstant"] << endl; ofstream outputfile; outputfile.open("data.dat"); outputfile << "Subject Name: " << parameters.find("SubjectName") << endl; outputfile << "Passive matrix:" << endl << objectPassiveTransformation.matrix() << endl; outputfile << "Yaw: " << toDegrees(eulerAngles.getYaw()) << endl <<"Pitch: " << toDegrees(eulerAngles.getPitch()) << endl; outputfile << "EyeLeft: " << headEyeCoords.getLeftEye().transpose() << endl; outputfile << "EyeRight: " << headEyeCoords.getRightEye().transpose() << endl << endl; outputfile << "Slant: " << instantPlaneSlant << endl; outputfile << "(Width,Height) [px]: " << getPlaneDimensions().transpose() << " " << endl; outputfile << "Factors:" << endl; for (map<string,double>::iterator iter=factors.begin(); iter!=factors.end(); ++iter) { outputfile << "\t\t" << iter->first << "= " << iter->second << endl; } outputfile << "Trial remaining: " << trial.getRemainingTrials()+1 << endl; outputfile << "Last response: " << probeAngle << endl; // Here we save plane projected width and height // now rewind the file outputfile.clear(); outputfile.seekp(0,ios::beg); // Write down frame by frame the trajectories and angles of eyes and head if ( trialMode == STIMULUSMODE && headCalibrationDone > 2 ) { trajFile << setw(6) << left << trialNumber << " " << stimulusFrames << " " << eyeRight.transpose() << endl; anglesFile << setw(6) << left << trialNumber << " " << stimulusFrames << " " << toDegrees(eulerAngles.getPitch()) << " " << toDegrees(eulerAngles.getRoll()) << " " << toDegrees(eulerAngles.getYaw()) << " " << instantPlaneSlant << endl; matrixFile << setw(6) << left << trialNumber << " " << stimulusFrames << " " ; for (int i=0; i<3; i++) matrixFile << objectPassiveTransformation.matrix().row(i) << " " ; matrixFile << endl; // Write the 13 special extremal points on stimFile stimFile << setw(6) << left << trialNumber << " " << stimulusFrames << " " ; double winx=0,winy=0,winz=0; for (PointsRandIterator iRand = redDotsPlane.specialPointsRand.begin(); iRand!=redDotsPlane.specialPointsRand.end(); ++iRand) { Point3D *p=(*iRand); Vector3d v = objectActiveTransformation*Vector3d( p->x, p->y, p->z); gluProject(v.x(),v.y(),v.z(), (&cam)->getModelViewMatrix().data(), (&cam)->getProjectiveMatrix().data(), (&cam)->getViewport().data(), &winx,&winy,&winz); stimFile << winx << " " << winy << " " << winz << " "; } stimFile << endl; } glutPostRedisplay(); glutTimerFunc(TIMER_MS, update, 0); }
void drawInfo() { glPushMatrix(); glClearColor(0.0,0.0,0.0,1.0); glMatrixMode (GL_PROJECTION); glPushMatrix (); glLoadIdentity (); gluOrtho2D(0, SCREEN_WIDTH, 0, SCREEN_HEIGHT); glMatrixMode (GL_MODELVIEW); glPushMatrix(); glLoadIdentity(); markers = optotrak.getAllPoints(); switch ( headCalibrationDone ) { case 0: { allVisibleHead = isVisible(markers[17]) && isVisible(markers[18]) && isVisible(markers[1]) && isVisible(markers[2]) && isVisible(markers[3]) ; if ( allVisibleHead ) glClearColor(0.0,1.0,0.0,1.0); //green light else glClearColor(1.0,0.0,0.0,1.0); //red light } break; case 1: case 2: //case 3: { glPrintText(10, SCREEN_HEIGHT-40,SCREEN_WIDTH,SCREEN_HEIGHT, "EL " + stringify<int>(eyeLeft.x() ) + " " + stringify<int>(eyeLeft.y() ) + " " + stringify<int>(eyeLeft.z()) ); glPrintText(10, SCREEN_HEIGHT-60,SCREEN_WIDTH,SCREEN_HEIGHT, "ER " + stringify<int>(eyeRight.x() ) + " " + stringify<int>(eyeRight.y() ) + " " + stringify<int>(eyeRight.z()) ); glPrintText(10, SCREEN_HEIGHT-80,SCREEN_WIDTH,SCREEN_HEIGHT, "EC" + stringify<int>(cyclopeanEye.x())+" " + stringify<int>(cyclopeanEye.y())+" " + stringify<int>(cyclopeanEye.z())); glPrintText(10, SCREEN_HEIGHT-100,SCREEN_WIDTH,SCREEN_HEIGHT, "Dist " + stringify<int>(cyclopeanEye.z()-focalDistance)); glPrintText(10, SCREEN_HEIGHT-120,SCREEN_WIDTH,SCREEN_HEIGHT, "PITCH " + stringify<int>(toDegrees(eulerAngles.getPitch()))); glPrintText(10, SCREEN_HEIGHT-140,SCREEN_WIDTH,SCREEN_HEIGHT, "YAW " + stringify<int>(toDegrees(eulerAngles.getYaw()))); glPrintText(10, SCREEN_HEIGHT-160,SCREEN_WIDTH,SCREEN_HEIGHT, "ROLL " + stringify<int>(toDegrees(eulerAngles.getRoll()))); glPrintText(10, SCREEN_HEIGHT-180,SCREEN_WIDTH,SCREEN_HEIGHT, "Press SPACEBAR to calibrate again or ENTER to confirm calibration."); glPrintText(10, SCREEN_HEIGHT-200,SCREEN_WIDTH,SCREEN_HEIGHT, "Delta " + stringify<int>(eyeRight.z()- eyeCalibration.z())); Vector3d angles = headEyeCoords.getRigidStart().getFullTransformation().rotation().eulerAngles(0,1,2); glPrintText(10, SCREEN_HEIGHT-220,SCREEN_WIDTH,SCREEN_HEIGHT, "YAW " + stringify<int>(toDegrees(eulerAngles.getYaw()))); glPrintText(10, SCREEN_HEIGHT-240,SCREEN_WIDTH,SCREEN_HEIGHT, "PITCH " + stringify<int>(toDegrees(eulerAngles.getPitch()))); if ( !passiveMode ) glPrintText(10, SCREEN_HEIGHT-260,SCREEN_WIDTH,SCREEN_HEIGHT, "Active"); else glPrintText(10, SCREEN_HEIGHT-260,SCREEN_WIDTH,SCREEN_HEIGHT, "Passive"); glPrintText(10, SCREEN_HEIGHT-280,SCREEN_WIDTH,SCREEN_HEIGHT, "OBJ " + stringify<int>(projPointEyeRight.x() ) + " " + stringify<int>(projPointEyeRight.y() ) + " " + stringify<int>(projPointEyeRight.z()) ); glPrintText(10, SCREEN_HEIGHT-300,SCREEN_WIDTH,SCREEN_HEIGHT,"Slant= " + stringify<int>(factors["Slant"]) + " " + stringify<int>((instantPlaneSlant))); glPrintText(10, SCREEN_HEIGHT-320,SCREEN_WIDTH,SCREEN_HEIGHT, "GlassesL" + stringify<int>(markers[17].x() ) + " " + stringify<int>(markers[17].y() ) + " " + stringify<int>(markers[17].z()) ); glPrintText(10, SCREEN_HEIGHT-340,SCREEN_WIDTH,SCREEN_HEIGHT, "GlassesR" + stringify<int>(markers[18].x() ) + " " + stringify<int>(markers[18].y() ) + " " + stringify<int>(markers[18].z()) ); } break; } glMatrixMode(GL_PROJECTION); glPopMatrix(); glMatrixMode(GL_MODELVIEW); glPopMatrix(); glPopMatrix(); // end if ( headCalibrationDone ) }
void update(int value) { // Read the experiment from file, if the file is finished exit suddenly if ( inputStream.eof() ) { cleanup(); exit(0); } if ( isReading ) { // This reads a line (frame) in inputStream readline(inputStream, trialNumber, headCalibration, trialMode, pointMatrix ); headEyeCoords.update(pointMatrix.col(0),pointMatrix.col(1),pointMatrix.col(2)); Affine3d active = headEyeCoords.getRigidStart().getFullTransformation(); eulerAngles.init( headEyeCoords.getRigidStart().getFullTransformation().rotation() ); eyeLeft = headEyeCoords.getLeftEye(); eyeRight= headEyeCoords.getRightEye(); cyclopeanEye = (eyeLeft+eyeRight)/2.0; if ( trialMode == STIMULUSMODE ) stimulusFrames++; if ( trialMode == FIXATIONMODE ) stimulusFrames=0; // Projection of view normal on the focal plane Vector3d directionOfSight = (active.rotation()*Vector3d(0,0,-1)).normalized(); Eigen::ParametrizedLine<double,3> lineOfSightRight = Eigen::ParametrizedLine<double,3>::Through( eyeRight , eyeRight+directionOfSight ); Eigen::ParametrizedLine<double,3> lineOfSightLeft = Eigen::ParametrizedLine<double,3>::Through( eyeLeft, eyeLeft+directionOfSight ); double lineOfSightRightDistanceToFocalPlane = lineOfSightRight.intersection(focalPlane); double lineOfSightLeftDistanceToFocalPlane = lineOfSightLeft.intersection(focalPlane); //double lenghtOnZ = (active*(center-eyeCalibration )+eyeRight).z(); projPointEyeRight = lineOfSightRightDistanceToFocalPlane *(directionOfSight)+ (eyeRight); projPointEyeLeft= lineOfSightLeftDistanceToFocalPlane * (directionOfSight) + (eyeLeft); // second projection the fixation point computed with z non constant but perfectly parallel to projPointEyeRight lineOfSightRightDistanceToFocalPlane= (( active.rotation()*(center)) - eyeRight).norm(); Vector3d secondProjection = lineOfSightRightDistanceToFocalPlane *(directionOfSight)+ (eyeRight); if ( !zOnFocalPlane ) projPointEyeRight=secondProjection ; // Compute the translation to move the eye in order to avoid share components Vector3d posAlongLineOfSight = (headEyeCoords.getRigidStart().getFullTransformation().rotation())*(eyeRight -eyeCalibration); // GENERATION OF PASSIVE MODE. // HERE WE MOVE THE SCREEN TO FACE THE OBSERVER's EYE if ( passiveMode ) { initProjectionScreen(0, headEyeCoords.getRigidStart().getFullTransformation()*Translation3d(center)); } else initProjectionScreen(focalDistance, Affine3d::Identity()); objectPassiveTransformation = ( cam.getModelViewMatrix()*objectActiveTransformation ); ofstream outputfile; outputfile.open("data.dat"); outputfile << "Subject Name: " << parameters.find("SubjectName") << endl; outputfile << "Passive matrix:" << endl << objectPassiveTransformation.matrix() << endl; outputfile << "Yaw: " << toDegrees(eulerAngles.getYaw()) << endl <<"Pitch: " << toDegrees(eulerAngles.getPitch()) << endl; outputfile << "EyeLeft: " << headEyeCoords.getLeftEye().transpose() << endl; outputfile << "EyeRight: " << headEyeCoords.getRightEye().transpose() << endl << endl; outputfile << "Slant: " << instantPlaneSlant << endl; outputfile << "Factors:" << endl; for (map<string,double>::iterator iter=factors.begin(); iter!=factors.end(); ++iter) { outputfile << "\t\t" << iter->first << "= " << iter->second << endl; } } if ( trialMode == PROBEMODE ) isReading=false; glutPostRedisplay(); glutTimerFunc(TIMER_MS, update, 0); }
void drawFixation() { switch ( headCalibrationDone ) { case 1: // Fixed stimulus glColor3fv(glWhite); glDisable(GL_BLEND); glPointSize(5); glBegin(GL_POINTS); glVertex3d(0,0,focalDistance); glEnd(); glPointSize(1); break; case 2: // Fixed stimulus + projected points glColor3fv(glWhite); glDisable(GL_BLEND); glPointSize(5); glBegin(GL_POINTS); glVertex3d(0,0,focalDistance); glColor3fv(glRed); glVertex3dv(projPointEyeRight.data()); glColor3fv(glBlue); glVertex3d(eyeRight.x(),eyeRight.y(),focalDistance); glEnd(); glPointSize(1); // Draw the calibration circle glColor3fv(glWhite); break; case 3: { // DRAW THE FIXATION POINT double eyeToCenterAngleX= toDegrees(atan(eyeRight.x()/(-focalDistance-eyeRight.z()) )); double eyeToCenterAngleY= toDegrees(atan(eyeRight.y()/(-focalDistance-eyeRight.z()) )); double projPointAngleX = toDegrees( atan( (projPointEyeRight.x()-eyeRight.x())/abs(projPointEyeRight.z()))); double maxAllowedTranslationYaw = str2num<double>(parameters.find("MaxAllowedTranslationYaw")); Vector3d stimulusCenter(0,0,0); Matrix3d objrotation = Matrix3d::Identity(); // IMPORTANT Reset the previous status of transformation objectActiveTransformation.setIdentity(); switch ( (int) factors["Rotation"] ) { case 2: { objrotation = (AngleAxis<double>(eulerAngles.getYaw()*factors["FollowingSpeed"], Vector3d::UnitY()) *AngleAxis<double>(eulerAngles.getPitch(), Vector3d::UnitX())).toRotationMatrix(); instantPlaneSlant = toDegrees(eulerAngles.getYaw())*factors["RotationSpeed"]+factors["Slant"]; stimulusCenter = objrotation*Vector3d(0,0,focalDistance)+headEyeCoords.getRigidStart().getFullTransformation().translation(); objectActiveTransformation.linear()=objrotation; } break; case 1: { objrotation = (AngleAxis<double>(eulerAngles.getYaw(), Vector3d::UnitY()) *AngleAxis<double>(eulerAngles.getPitch()*factors["FollowingSpeed"], Vector3d::UnitX())).toRotationMatrix(); instantPlaneSlant = toDegrees(eulerAngles.getPitch())*factors["RotationSpeed"]+factors["Slant"]; stimulusCenter = objrotation*Vector3d(0,0,focalDistance)+headEyeCoords.getRigidStart().getFullTransformation().translation(); objectActiveTransformation.linear()=objrotation; } break; case 0: { objrotation = (AngleAxis<double>(eulerAngles.getYaw(), Vector3d::UnitY()) *AngleAxis<double>(eulerAngles.getPitch(), Vector3d::UnitX())).toRotationMatrix(); //instantPlaneSlant = eyeRight.x()*factors["RotationSpeed"]/10+factors["Slant"]; instantPlaneSlant = toDegrees( atan(eyeRight.x()/abs(focalDistance+eyeRight.z()) ) )*factors["RotationSpeed"]+factors["Slant"]; stimulusCenter = headEyeCoords.getRigidStart().getFullTransformation().linear()*Vector3d(eyeRight.x()*factors["FollowingSpeed"],eyeRight.y(),eyeRight.z()+focalDistance); objectActiveTransformation.linear() = objrotation; } break; } objectActiveTransformation.translation() = stimulusCenter; Vector3d fixationPointTmp = objectActiveTransformation.translation(); glPushMatrix(); glTranslated(fixationPointTmp.x(),fixationPointTmp.y(),fixationPointTmp.z()); glutSolidSphere(1,10,10); glPopMatrix(); break; } } }
void drawRedDotsPlane() { // Draw the stimulus ( red-dots plane ) glDisable(GL_COLOR_MATERIAL); glDisable(GL_BLEND); glDisable(GL_LIGHTING); Matrix3d objrotation ; Vector3d stimulusCenter; double instantPlaneSlant=0; // IMPORTANT Reset the previous status of transformation objectActiveTransformation.setIdentity(); switch ( (int) factors["Rotation"] ) { case 2: { objrotation = (AngleAxis<double>(eulerAngles.getYaw()*factors["FollowingSpeed"], Vector3d::UnitY()) *AngleAxis<double>(eulerAngles.getPitch(), Vector3d::UnitX())).toRotationMatrix(); instantPlaneSlant = toDegrees(eulerAngles.getYaw())*factors["RotationSpeed"]+factors["Slant"]; stimulusCenter = objrotation*Vector3d(0,0,focalDistance)+headEyeCoords.getRigidStart().getFullTransformation().translation(); objectActiveTransformation.linear()=objrotation; } break; case 1: { objrotation = (AngleAxis<double>(eulerAngles.getYaw(), Vector3d::UnitY()) *AngleAxis<double>(eulerAngles.getPitch()*factors["FollowingSpeed"], Vector3d::UnitX())).toRotationMatrix(); instantPlaneSlant = toDegrees(eulerAngles.getPitch())*factors["RotationSpeed"]+factors["Slant"]; stimulusCenter = objrotation*Vector3d(0,0,focalDistance)+headEyeCoords.getRigidStart().getFullTransformation().translation(); objectActiveTransformation.linear()=objrotation; } break; case 0: { objrotation = (AngleAxis<double>(eulerAngles.getYaw(), Vector3d::UnitY()) *AngleAxis<double>(eulerAngles.getPitch(), Vector3d::UnitX())).toRotationMatrix(); //instantPlaneSlant = eyeRight.x()*factors["RotationSpeed"]/10+factors["Slant"]; instantPlaneSlant = toDegrees( atan(eyeRight.x()/abs(focalDistance+eyeRight.z()) ) )+factors["Slant"]; stimulusCenter = headEyeCoords.getRigidStart().getFullTransformation().linear()*Vector3d(eyeRight.x()*factors["FollowingSpeed"],eyeRight.y(),eyeRight.z()+focalDistance); objectActiveTransformation.linear() = objrotation; } break; } objectActiveTransformation.translation() = stimulusCenter; //cerr << instantPlaneSlant << endl; glPushMatrix(); // PUSH MATRIX glLoadIdentity(); glMultMatrixd(objectActiveTransformation.data()); switch ( (int) factors["Tilt"] ) { case 0: glRotated( instantPlaneSlant ,0,1,0); //objectActiveTransformation*=AngleAxisd( toRadians(-instantPlaneSlant), Vector3d::UnitY() ); glScaled(1/sin(toRadians( -90-factors["Slant"])),1,1); //backprojection phase break; case 90: glRotated( -instantPlaneSlant ,1,0,0); //objectActiveTransformation*=AngleAxisd( toRadians(-instantPlaneSlant), Vector3d::UnitX() ); glScaled(1,1/sin(toRadians( -90-factors["Slant"] )),1); //backprojection phase break; case 180: glRotated( -instantPlaneSlant ,0,1,0); //objectActiveTransformation*=AngleAxisd( toRadians(-instantPlaneSlant), Vector3d::UnitY() ); glScaled(1/sin(toRadians( -90-factors["Slant"] )),1,1); //backprojection phase break; case 270: glRotated( instantPlaneSlant ,1,0,0); //objectActiveTransformation*=AngleAxisd( toRadians(-instantPlaneSlant), Vector3d::UnitX() ); glScaled(1,1/sin(toRadians( -90-factors["Slant"] )),1); //backprojection phase break; } stimDrawer.draw(); glPopMatrix(); // POP MATRIX }