private function parse_point()
{
$x = $this->unpacker->read_double();
$y = $this->unpacker->read_double();
if (!$this->with_z && !$this->with_m) {
return Point::from_xy($x, $y, $this->srid);
} elseif ($this->with_z && $this->with_m) {
$z = $this->unpacker->read_double();
$m = $this->unpacker->read_double();
return Point::from_xyzm($x, $y, $z, $m, $this->srid);
} elseif ($this->with_z) {
$z = $this->unpacker->read_double();
return Point::from_xyz($x, $y, $z, $this->srid);
} else {
// with_m
$m = $this->unpacker->read_double();
return Point::from_xym($x, $y, $m, $this->srid);
}
}
private function parse_coords()
{
$x = $this->tokenizer->get_next_token();
$y = $this->tokenizer->get_next_token();
if ($x === null || $y === null) {
throw new EWKTFormatError('Bad POINT format');
}
if ($this->is_3dm) {
$m = $this->tokenizer->get_next_token();
if ($m === null || $m == ',' || $m == ')') {
throw new EWKTFormatError('m component expected but not found');
} else {
$point = Point::from_xym(floatval($x), floatval($y), floatval($m), $this->srid);
$next = $this->tokenizer->get_next_token();
}
} else {
$z = $this->tokenizer->get_next_token();
if ($z === null) {
throw new EWKTFormatError('Incorrect termination of EWKT string');
}
if ($z == ',' || $z == ')') {
// No Z value
$point = Point::from_xy(floatval($x), floatval($y), $this->srid);
$next = $z;
} else {
$m = $this->tokenizer->get_next_token();
if ($m === null) {
throw new EWKTFormatError('Incorrect termination of EWKT string');
}
$this->with_z = true;
if ($m == ',' || $m == ')') {
// 3dz
$point = Point::from_xyz(floatval($x), floatval($y), floatval($z), $this->srid);
$next = $m;
} else {
// 4d
$this->with_m = true;
$point = Point::from_xyzm(floatval($x), floatval($y), floatval($z), floatval($m), $this->srid);
$next = $this->tokenizer->get_next_token();
}
}
}
return array($next, $point);
}
public function test_point_extent()
{
$p = Point::from_xy(1.1, 2.2, 444);
$env = $p->extent();
$this->assertEquals($env->ll, $env->ur);
$this->assertEquals($p->x, $env->ll->x);
$this->assertEquals($p->y, $env->ll->y);
$this->assertEquals(false, $env->with_z);
$p = Point::from_xyz(1.1, 2.2, 3.3, 444);
$env = $p->extent();
$this->assertEquals($env->ll, $env->ur);
$this->assertEquals($p->x, $env->ll->x);
$this->assertEquals($p->y, $env->ll->y);
$this->assertEquals($p->z, $env->ll->z);
$this->assertEquals(true, $env->with_z);
$this->assertEquals($p->x, $env->left);
$this->assertEquals($p->x, $env->right);
$this->assertEquals($p->y, $env->top);
$this->assertEquals($p->y, $env->bottom);
}