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/**
* @file thtfangle.cxx
*/
/* Copyright (C) 2000 Stacho Mudrak
*
* $Date: $
* $RCSfile: $
* $Revision: $
*
* --------------------------------------------------------------------
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* --------------------------------------------------------------------
*/
#include "thparse.h"
#include "thtfangle.h"
#include "thexception.h"
#include "thinfnan.h"
#include <math.h>
thtfangle::thtfangle() {
this->units = TT_TFU_DEG;
this->allow_percentage = false;
}
void thtfangle::parse_units(char * ustr)
{
this->units = thmatch_token(ustr, thtt_tfunits_angle);
switch (this->units) {
case TT_TFU_DEG:
case TT_TFU_DMS:
this->ufactor = 1.0;
break;
case TT_TFU_MIN:
this->ufactor = 0.0166666666666666666666666666666666666666666;
break;
case TT_TFU_GRAD:
this->ufactor = 0.9;
break;
case TT_TFU_PERC:
if (this->allow_percentage) {
this->ufactor = 1.0;
break;
}
case TT_TFU_UNKNOWN_ANGLE:
ththrow(("unknown angle unit -- %s", ustr))
break;
}
}
double thtfangle::transform(double value) {
switch (this->units) {
case TT_TFU_PERC:
return (atan(thtf::transform(value) / 100.0) / THPI * 180.0);
break;
default:
return thtf::transform(value);
}
}
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