/**
Initialize Transverse Mercator projection
*/
public function init()
{
$this->e0 = Sourcemap_Proj::e0fn($this->es);
$this->e1 = Sourcemap_Proj::e1fn($this->es);
$this->e2 = Sourcemap_Proj::e2fn($this->es);
$this->e3 = Sourcemap_Proj::e3fn($this->es);
$this->ml0 = $this->a * Sourcemap_Proj::mlfn($this->e0, $this->e1, $this->e2, $this->e3, $this->lat0);
}
public function init()
{
if (!$this->mode) {
$this->mode = 0;
}
//chosen default mode
$this->temp = $this->b / $this->a;
$this->es = 1.0 - pow($this->temp, 2);
$this->e = sqrt($this->es);
$this->e0 = Sourcemap_Proj::e0fn($this->es);
$this->e1 = Sourcemap_Proj::e1fn($this->es);
$this->e2 = Sourcemap_Proj::e2fn($this->es);
$this->e3 = Sourcemap_Proj::e3fn($this->es);
$this->sinphi = sin($this->lat1);
$this->cosphi = cos($this->lat1);
$this->ms1 = Sourcemap_Proj::msfnz($this->e, $this->sinphi, $this->cosphi);
$this->ml1 = Sourcemap_Proj::mlfn($this->e0, $this->e1, $this->e2, $this->e3, $this->lat1);
/* format B
---------*/
if ($this->mode != 0) {
if (abs($this->lat1 + $this->lat2) < Sourcemap_Proj::EPSLN) {
throw new Exception("Equal latitudes.");
}
$this->sinphi = sin($this->lat2);
$this->cosphi = cos($this->lat2);
$this->ms2 = Sourcemap_Proj::msfnz($this->e, $this->sinphi, $this->cosphi);
$this->ml2 = Sourcemap_Proj::mlfn($this->e0, $this->e1, $this->e2, $this->e3, $this->lat2);
if (abs($this->lat1 - $this->lat2) >= Sourcemap_Proj::EPSLN) {
$this->ns = ($this->ms1 - $this->ms2) / ($this->ml2 - $this->ml1);
} else {
$this->ns = $this->sinphi;
}
} else {
$this->ns = $this->sinphi;
}
$this->g = $this->ml1 + $this->ms1 / $this->ns;
$this->ml0 = Sourcemap_Proj::mlfn($this->e0, $this->e1, $this->e2, $this->e3, $this->lat0);
$this->rh = $this->a * ($this->g - $this->ml0);
}
public function init()
{
$temp;
/* temporary variable */
if ($this->lat0 = 0) {
$this->lat0 = 90;
}
//$this->lat0 ca
/* Place parameters in static storage for common use
-------------------------------------------------*/
$this->temp = $this->b / $this->a;
$this->es = 1.0 - pow($this->temp, 2);
// devait etre dans tmerc.js mais n y est pas donc je commente sinon retour de valeurs nulles
$this->e = sqrt($this->es);
$this->e0 = Sourcemap_Proj::e0fn($this->es);
$this->e1 = Sourcemap_Proj::e1fn($this->es);
$this->e2 = Sourcemap_Proj::e2fn($this->es);
$this->e3 = Sourcemap_Proj::e3fn($this->es);
$this->ml0 = Sourcemap_Proj::mlfn($this->e0, $this->e1, $this->e2, $this->e3, $this->lat0);
//si que des zeros le calcul ne se fait pas
//if(!$this->ml0) {$this->ml0=0;}
}
