// routine to prepare the displayable object; must set the origin properly
void Stage::prepare() {
float rot_amount = 0.0, strans[3];
char rot_axes = 'z';
strans[0] = strans[1] = strans[2] = 0.0;
// move the stage to its proper position
if (need_update && stagePos != NO_STAGE) {
if (stagePos == STAGE_ORIGIN) {
;
} else if(stagePos == STAGE_LOWER) {
strans[1] = -1.0;
} else if(stagePos == STAGE_UPPER) {
strans[1] = 1.0;
} else if(stagePos == STAGE_LEFT) {
strans[0] = -1.0;
rot_amount = -90.0;
} else if(stagePos == STAGE_RIGHT) {
strans[0] = 1.0;
rot_amount = 90.0;
} else if(stagePos == STAGE_BEHIND) {
strans[2] = -1.0;
rot_axes = 'x';
rot_amount = 90.0;
} else {
msgErr << "Stage: Illegal stage location " << stagePos << " specified."
<< sendmsg;
stagePos = STAGE_ORIGIN;
return;
}
// update the current transformation
need_update = FALSE;
// (re)create the command list
create_cmdlist();
// reset tranformation
glob_trans_on();
rot_on();
reset_transformation();
set_glob_trans(strans[0], strans[1], strans[2]);
add_rot(rot_amount, rot_axes);
rot_off();
glob_trans_off();
}
}
// routine to prepare the displayable object; must set the origin properly
void Axes::prepare() {
float asp, xpos, ypos;
float poscale = 0.95f;
// recreate command list if needed
if (need_create_cmdlist)
create_cmdlist();
if (axesPos == NO_AXES || movedAxes) {
return; // don't update/modify the Axes position
}
if ((asp = disp->aspect()) != Aspect) {
// move the axes to their proper position
switch (axesPos) {
case AXES_LOWERLEFT:
xpos = -poscale * asp;
ypos = -poscale;
break;
case AXES_LOWERRIGHT:
xpos = poscale * asp;
ypos = -poscale;
break;
case AXES_UPPERLEFT:
xpos = -poscale * asp;
ypos = poscale;
break;
case AXES_UPPERRIGHT:
xpos = poscale * asp;
ypos = poscale;
break;
default:
xpos = ypos = 0.0;
}
// update the current transformation
Aspect = asp;
glob_trans_on();
set_glob_trans(xpos, ypos, 0.0);
glob_trans_off();
}
}
