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improved comments

This commit is contained in:
Paolo Cignoni 2008-03-21 16:09:02 +00:00
parent 0af424701d
commit 4bd2caa2e6
1 changed files with 18 additions and 15 deletions
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33
wrap/gui/activecoordinateframe.cpp
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@ -23,6 +23,9 @@
/****************************************************************************
History
$Log: not supported by cvs2svn $
Revision 1.1 2008/03/02 16:44:18 benedetti
moved ActiveCoordinateFrame to its own files
****************************************************************************/
@ -68,7 +71,7 @@ void ActiveCoordinateFrame::Render(QGLWidget* glw)
MovableCoordinateFrame::Render(glw);
// non devo disegnare
// got nothing to draw
if(!drawmoves && !drawrotations){
glPopMatrix();
return;
@ -78,7 +81,7 @@ void ActiveCoordinateFrame::Render(QGLWidget* glw)
bool rotating=(current_mode==rotx)||(current_mode==roty)||(current_mode==rotz);
bool moving=(current_mode==movx)||(current_mode==movy)||(current_mode==movz);
//devo disegnare qualcosa
// maybe got something to draw
glPushAttrib(GL_ALL_ATTRIB_BITS);
glDisable(GL_LIGHTING);
glDisable(GL_TEXTURE_2D);
@ -87,7 +90,7 @@ void ActiveCoordinateFrame::Render(QGLWidget* glw)
glEnable(GL_LINE_SMOOTH);
glEnable(GL_POINT_SMOOTH);
QString message("sovrascrivimi");
QString message("this should never be seen");
char axis_name;
float verse;
@ -98,7 +101,7 @@ void ActiveCoordinateFrame::Render(QGLWidget* glw)
} else if(current_mode==z_modifier){
glColor(zcolor); message = QString("move or rotate on Z axis");
} else
if(rotating && drawrotations){ // devo disegnare una rotazione
if(rotating && drawrotations){ // draw a rotation
Point3f axis, arc_point;
float angle;
manipulator->track.rot.ToAxis(angle,axis);
@ -112,12 +115,12 @@ void ActiveCoordinateFrame::Render(QGLWidget* glw)
} else if(current_mode==rotz) {
verse=((axis+z_axis).Norm()<1?-1:1);
glColor(zcolor); axis_name='z'; arc_point=x_axis*(size*0.8);
} else assert(0); // doveva essere una rotazione
// normalizzo la rotazione a [-180,180]
} else assert(0);
// normalizing rotation between -180 and 180 degrees
float sign = ((angle*verse)<0) ? -1 : 1;
float abs_angle = (angle<0) ? -angle : angle;
angle = sign * ( (abs_angle>M_PI) ? 2*M_PI-abs_angle : abs_angle );
axis = axis * verse;
axis = axis * verse;
message = QString("rotated %1 deg around %2")
.arg(((angle*180.0)/M_PI),5,'f',3)
.arg(axis_name);
@ -131,19 +134,19 @@ void ActiveCoordinateFrame::Render(QGLWidget* glw)
glVertex(position+arc_point);
}
glEnd();
} else if(moving && drawmoves){// devo disegnare una traslazione
} else if(moving && drawmoves){ // draw a traslation
Point3f ntra=manipulator->track.tra;
ntra.Normalize();
if(current_mode==movx){
verse=((ntra+x_axis).Norm()<1?-1:1);
verse=((ntra+x_axis).Norm()<1?-1:1);
glColor(xcolor); axis_name='x';
}else if(current_mode==movy){
verse=((ntra+y_axis).Norm()<1?-1:1);
verse=((ntra+y_axis).Norm()<1?-1:1);
glColor(ycolor); axis_name='y';
}else if(current_mode==movz){
verse=((ntra+z_axis).Norm()<1?-1:1);
verse=((ntra+z_axis).Norm()<1?-1:1);
glColor(zcolor); axis_name='z';
}else assert(0); // doveva essere una traslazione
}else assert(0);
message = QString("moved %1 units along %2")
.arg(verse*manipulator->track.tra.Norm(),5,'f',3)
.arg(axis_name);
@ -157,19 +160,19 @@ void ActiveCoordinateFrame::Render(QGLWidget* glw)
glBegin(GL_POINTS);
glVertex(old_pos);
glEnd();
} else { // non dovevo disegnare nulla
} else { // got nothing to draw
glPopAttrib();
glPopMatrix();
return;
}
// disegno la stringa
// draw message below cursor
font.setBold(true);
font.setPixelSize(12);
QPoint cursor=glw->mapFromGlobal(glw->cursor().pos());
glw->renderText(cursor.x()+16,cursor.y()+16,message,font);
glPopAttrib();
glPopMatrix(); //occhio
glPopMatrix();
}
void ActiveCoordinateFrame::Reset(bool reset_position,bool reset_alignment)