Passed
Push — main ( a3ac80...14e9ad )
by Frank
02:23
created

MercatorProjection::getMaxY()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 3
Code Lines 1

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 2
CRAP Score 1

Importance

Changes 0
Metric Value
eloc 1
c 0
b 0
f 0
dl 0
loc 3
ccs 2
cts 2
cp 1
rs 10
cc 1
nc 1
nop 0
crap 1
1
<?php
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declare(strict_types=1);
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namespace PrinsFrank\PhpGeoSVG\Projection;
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use PrinsFrank\PhpGeoSVG\Geometry\Position\Position;
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class MercatorProjection implements Projection
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{
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    public function getX(Position $position): float
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    {
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        return ($position->longitude + 180) * (Position::TOTAL_LONGITUDE * .5 / 360);
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    }
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    public function getY(Position $position): float
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    {
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        $latitude = $position->latitude;
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        if ($latitude > $this->getMaxLatitude() - 0.001) {
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            $latitude = $this->getMaxLatitude() - 0.001;
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        }
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        if ($latitude < (-$this->getMaxLatitude()) + 0.001) {
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            $latitude = (-$this->getMaxLatitude()) + 0.001;
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        }
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        return (Position::TOTAL_LATITUDE / 2) - (Position::TOTAL_LONGITUDE * .5 * log(tan((M_PI / 4) + (($latitude*M_PI / 180) / 2))) / (2 * M_PI));
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    }
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    public function getMaxX(): float
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    {
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        return Position::TOTAL_LONGITUDE * .5;
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    }
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    public function getMaxY(): float
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    {
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        return Position::TOTAL_LATITUDE;
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    }
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    public function getMaxLatitude(): float
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    {
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        return 85;
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    }
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}
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