1 | <?php |
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16 | class BilinearInterpolationTest extends \PHPUnit_Framework_TestCase |
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17 | { |
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18 | /** @var BilinearInterpolation */ |
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19 | protected $Interpolation; |
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20 | |||
21 | public function setUp() |
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22 | { |
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23 | $this->Interpolation = new BilinearInterpolation(); |
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24 | } |
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25 | |||
26 | public function testBoundaryPoints() |
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27 | { |
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28 | $boundingBox = [3, 42, 1337, 666]; |
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29 | |||
30 | $this->assertEquals(3.0, $this->Interpolation->interpolate(0.0, 0.0, $boundingBox)); |
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31 | $this->assertEquals(42.0, $this->Interpolation->interpolate(1.0, 0.0, $boundingBox)); |
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32 | $this->assertEquals(1337.0, $this->Interpolation->interpolate(0.0, 1.0, $boundingBox)); |
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33 | $this->assertEquals(666.0, $this->Interpolation->interpolate(1.0, 1.0, $boundingBox)); |
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34 | } |
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35 | |||
36 | public function testPointsOnBoundaryLines() |
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37 | { |
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38 | $boundingBox = [10, 20, 30, 40]; |
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39 | |||
40 | $this->assertEquals(15, $this->Interpolation->interpolate(0.5, 0.0, $boundingBox)); |
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41 | $this->assertEquals(20, $this->Interpolation->interpolate(0.0, 0.5, $boundingBox)); |
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42 | $this->assertEquals(30, $this->Interpolation->interpolate(1.0, 0.5, $boundingBox)); |
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43 | $this->assertEquals(35, $this->Interpolation->interpolate(0.5, 1.0, $boundingBox)); |
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44 | } |
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45 | |||
46 | public function testCenter() |
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47 | { |
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48 | $this->assertEquals(20, $this->Interpolation->interpolate(0.5, 0.5, [20, 20, 20, 20])); |
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49 | $this->assertEquals(15, $this->Interpolation->interpolate(0.5, 0.5, [10, 10, 20, 20])); |
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50 | $this->assertEquals(15, $this->Interpolation->interpolate(0.5, 0.5, [20, 20, 10, 10])); |
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51 | $this->assertEquals(15, $this->Interpolation->interpolate(0.5, 0.5, [10, 20, 10, 20])); |
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52 | $this->assertEquals(15, $this->Interpolation->interpolate(0.5, 0.5, [20, 10, 20, 10])); |
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53 | $this->assertEquals(75, $this->Interpolation->interpolate(0.5, 0.5, [100, 100, 100, 0])); |
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54 | $this->assertEquals(38, $this->Interpolation->interpolate(0.5, 0.5, [10, 42, 31, 69])); |
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55 | } |
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56 | } |
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57 |