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Proposal: Add Rotating Calipers Algorithm to Geometry Package #6674

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c545617
Update DIRECTORY.md
alxkm Oct 5, 2025
beb1db6
Proposal: Add Rotating Calipers Algorithm to Geometry Package
Oct 6, 2025
8ee622e
Fix test: correct expected diameter value from 5.0 to 4.0
Oct 6, 2025
25f7b1f
Fix test: use triangle with actual diameter of 5.0
Oct 6, 2025
a2ada7c
Fix diameter algorithm to check all point pairs
Oct 6, 2025
28fe67b
Improve test coverage: add edge case tests, remove demo file
Oct 6, 2025
e23bf34
Fix Checkstyle violations: remove trailing spaces, fix formatting
Oct 6, 2025
98226e2
style(geometry): remove trailing spaces and fix newlines in RotatingC…
Oct 6, 2025
2251af2
Merge branch 'update-directory' into rotating-calipers-algorithm
motalib6 Oct 6, 2025
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32 changes: 32 additions & 0 deletions DIRECTORY.md
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Expand Up @@ -29,8 +29,10 @@
- 📄 [BcdConversion](src/main/java/com/thealgorithms/bitmanipulation/BcdConversion.java)
- 📄 [BinaryPalindromeCheck](src/main/java/com/thealgorithms/bitmanipulation/BinaryPalindromeCheck.java)
- 📄 [BitSwap](src/main/java/com/thealgorithms/bitmanipulation/BitSwap.java)
- 📄 [BitwiseGCD](src/main/java/com/thealgorithms/bitmanipulation/BitwiseGCD.java)
- 📄 [BooleanAlgebraGates](src/main/java/com/thealgorithms/bitmanipulation/BooleanAlgebraGates.java)
- 📄 [ClearLeftmostSetBit](src/main/java/com/thealgorithms/bitmanipulation/ClearLeftmostSetBit.java)
- 📄 [CountBitsFlip](src/main/java/com/thealgorithms/bitmanipulation/CountBitsFlip.java)
- 📄 [CountLeadingZeros](src/main/java/com/thealgorithms/bitmanipulation/CountLeadingZeros.java)
- 📄 [CountSetBits](src/main/java/com/thealgorithms/bitmanipulation/CountSetBits.java)
- 📄 [FindNthBit](src/main/java/com/thealgorithms/bitmanipulation/FindNthBit.java)
Expand Down Expand Up @@ -98,6 +100,7 @@
- 📄 [BinaryToDecimal](src/main/java/com/thealgorithms/conversions/BinaryToDecimal.java)
- 📄 [BinaryToHexadecimal](src/main/java/com/thealgorithms/conversions/BinaryToHexadecimal.java)
- 📄 [BinaryToOctal](src/main/java/com/thealgorithms/conversions/BinaryToOctal.java)
- 📄 [CoordinateConverter](src/main/java/com/thealgorithms/conversions/CoordinateConverter.java)
- 📄 [DecimalToAnyBase](src/main/java/com/thealgorithms/conversions/DecimalToAnyBase.java)
- 📄 [DecimalToBinary](src/main/java/com/thealgorithms/conversions/DecimalToBinary.java)
- 📄 [DecimalToHexadecimal](src/main/java/com/thealgorithms/conversions/DecimalToHexadecimal.java)
Expand All @@ -118,6 +121,7 @@
- 📄 [PhoneticAlphabetConverter](src/main/java/com/thealgorithms/conversions/PhoneticAlphabetConverter.java)
- 📄 [RgbHsvConversion](src/main/java/com/thealgorithms/conversions/RgbHsvConversion.java)
- 📄 [RomanToInteger](src/main/java/com/thealgorithms/conversions/RomanToInteger.java)
- 📄 [TimeConverter](src/main/java/com/thealgorithms/conversions/TimeConverter.java)
- 📄 [TurkishToLatinConversion](src/main/java/com/thealgorithms/conversions/TurkishToLatinConversion.java)
- 📄 [UnitConversions](src/main/java/com/thealgorithms/conversions/UnitConversions.java)
- 📄 [UnitsConverter](src/main/java/com/thealgorithms/conversions/UnitsConverter.java)
Expand Down Expand Up @@ -199,6 +203,7 @@
- 📄 [MinPriorityQueue](src/main/java/com/thealgorithms/datastructures/heaps/MinPriorityQueue.java)
- 📁 **lists**
- 📄 [CircleLinkedList](src/main/java/com/thealgorithms/datastructures/lists/CircleLinkedList.java)
- 📄 [CircularDoublyLinkedList](src/main/java/com/thealgorithms/datastructures/lists/CircularDoublyLinkedList.java)
- 📄 [CountSinglyLinkedListRecursion](src/main/java/com/thealgorithms/datastructures/lists/CountSinglyLinkedListRecursion.java)
- 📄 [CreateAndDetectLoop](src/main/java/com/thealgorithms/datastructures/lists/CreateAndDetectLoop.java)
- 📄 [CursorLinkedList](src/main/java/com/thealgorithms/datastructures/lists/CursorLinkedList.java)
Expand Down Expand Up @@ -343,11 +348,14 @@
- 📄 [BresenhamLine](src/main/java/com/thealgorithms/geometry/BresenhamLine.java)
- 📄 [ConvexHull](src/main/java/com/thealgorithms/geometry/ConvexHull.java)
- 📄 [GrahamScan](src/main/java/com/thealgorithms/geometry/GrahamScan.java)
- 📄 [Haversine](src/main/java/com/thealgorithms/geometry/Haversine.java)
- 📄 [MidpointCircle](src/main/java/com/thealgorithms/geometry/MidpointCircle.java)
- 📄 [MidpointEllipse](src/main/java/com/thealgorithms/geometry/MidpointEllipse.java)
- 📄 [Point](src/main/java/com/thealgorithms/geometry/Point.java)
- 📁 **graph**
- 📄 [BronKerbosch](src/main/java/com/thealgorithms/graph/BronKerbosch.java)
- 📄 [ConstrainedShortestPath](src/main/java/com/thealgorithms/graph/ConstrainedShortestPath.java)
- 📄 [EdmondsKarp](src/main/java/com/thealgorithms/graph/EdmondsKarp.java)
- 📄 [HopcroftKarp](src/main/java/com/thealgorithms/graph/HopcroftKarp.java)
- 📄 [PredecessorConstrainedDfs](src/main/java/com/thealgorithms/graph/PredecessorConstrainedDfs.java)
- 📄 [StronglyConnectedComponentOptimized](src/main/java/com/thealgorithms/graph/StronglyConnectedComponentOptimized.java)
Expand Down Expand Up @@ -450,6 +458,7 @@
- 📄 [NonRepeatingElement](src/main/java/com/thealgorithms/maths/NonRepeatingElement.java)
- 📄 [NthUglyNumber](src/main/java/com/thealgorithms/maths/NthUglyNumber.java)
- 📄 [NumberOfDigits](src/main/java/com/thealgorithms/maths/NumberOfDigits.java)
- 📄 [NumberPersistence](src/main/java/com/thealgorithms/maths/NumberPersistence.java)
- 📄 [PalindromeNumber](src/main/java/com/thealgorithms/maths/PalindromeNumber.java)
- 📄 [ParseInteger](src/main/java/com/thealgorithms/maths/ParseInteger.java)
- 📄 [PascalTriangle](src/main/java/com/thealgorithms/maths/PascalTriangle.java)
Expand Down Expand Up @@ -486,6 +495,7 @@
- 📄 [SumOfArithmeticSeries](src/main/java/com/thealgorithms/maths/SumOfArithmeticSeries.java)
- 📄 [SumOfDigits](src/main/java/com/thealgorithms/maths/SumOfDigits.java)
- 📄 [SumOfOddNumbers](src/main/java/com/thealgorithms/maths/SumOfOddNumbers.java)
- 📄 [SumOfSquares](src/main/java/com/thealgorithms/maths/SumOfSquares.java)
- 📄 [SumWithoutArithmeticOperators](src/main/java/com/thealgorithms/maths/SumWithoutArithmeticOperators.java)
- 📄 [TrinomialTriangle](src/main/java/com/thealgorithms/maths/TrinomialTriangle.java)
- 📄 [TwinPrime](src/main/java/com/thealgorithms/maths/TwinPrime.java)
Expand Down Expand Up @@ -576,6 +586,7 @@
- 📁 **recursion**
- 📄 [FibonacciSeries](src/main/java/com/thealgorithms/recursion/FibonacciSeries.java)
- 📄 [GenerateSubsets](src/main/java/com/thealgorithms/recursion/GenerateSubsets.java)
- 📄 [SylvesterSequence](src/main/java/com/thealgorithms/recursion/SylvesterSequence.java)
- 📁 **scheduling**
- 📄 [AgingScheduling](src/main/java/com/thealgorithms/scheduling/AgingScheduling.java)
- 📄 [EDFScheduling](src/main/java/com/thealgorithms/scheduling/EDFScheduling.java)
Expand Down Expand Up @@ -641,6 +652,7 @@
- 📄 [MaxSumKSizeSubarray](src/main/java/com/thealgorithms/slidingwindow/MaxSumKSizeSubarray.java)
- 📄 [MaximumSlidingWindow](src/main/java/com/thealgorithms/slidingwindow/MaximumSlidingWindow.java)
- 📄 [MinSumKSizeSubarray](src/main/java/com/thealgorithms/slidingwindow/MinSumKSizeSubarray.java)
- 📄 [MinimumWindowSubstring](src/main/java/com/thealgorithms/slidingwindow/MinimumWindowSubstring.java)
- 📄 [ShortestCoprimeSegment](src/main/java/com/thealgorithms/slidingwindow/ShortestCoprimeSegment.java)
- 📁 **sorts**
- 📄 [AdaptiveMergeSort](src/main/java/com/thealgorithms/sorts/AdaptiveMergeSort.java)
Expand Down Expand Up @@ -719,13 +731,15 @@
- 📁 **strings**
- 📄 [AhoCorasick](src/main/java/com/thealgorithms/strings/AhoCorasick.java)
- 📄 [Alphabetical](src/main/java/com/thealgorithms/strings/Alphabetical.java)
- 📄 [AlternativeStringArrange](src/main/java/com/thealgorithms/strings/AlternativeStringArrange.java)
- 📄 [Anagrams](src/main/java/com/thealgorithms/strings/Anagrams.java)
- 📄 [CharactersSame](src/main/java/com/thealgorithms/strings/CharactersSame.java)
- 📄 [CheckVowels](src/main/java/com/thealgorithms/strings/CheckVowels.java)
- 📄 [CountChar](src/main/java/com/thealgorithms/strings/CountChar.java)
- 📄 [CountWords](src/main/java/com/thealgorithms/strings/CountWords.java)
- 📄 [HammingDistance](src/main/java/com/thealgorithms/strings/HammingDistance.java)
- 📄 [HorspoolSearch](src/main/java/com/thealgorithms/strings/HorspoolSearch.java)
- 📄 [Isogram](src/main/java/com/thealgorithms/strings/Isogram.java)
- 📄 [Isomorphic](src/main/java/com/thealgorithms/strings/Isomorphic.java)
- 📄 [KMP](src/main/java/com/thealgorithms/strings/KMP.java)
- 📄 [LetterCombinationsOfPhoneNumber](src/main/java/com/thealgorithms/strings/LetterCombinationsOfPhoneNumber.java)
Expand Down Expand Up @@ -781,8 +795,10 @@
- 📄 [BcdConversionTest](src/test/java/com/thealgorithms/bitmanipulation/BcdConversionTest.java)
- 📄 [BinaryPalindromeCheckTest](src/test/java/com/thealgorithms/bitmanipulation/BinaryPalindromeCheckTest.java)
- 📄 [BitSwapTest](src/test/java/com/thealgorithms/bitmanipulation/BitSwapTest.java)
- 📄 [BitwiseGCDTest](src/test/java/com/thealgorithms/bitmanipulation/BitwiseGCDTest.java)
- 📄 [BooleanAlgebraGatesTest](src/test/java/com/thealgorithms/bitmanipulation/BooleanAlgebraGatesTest.java)
- 📄 [ClearLeftmostSetBitTest](src/test/java/com/thealgorithms/bitmanipulation/ClearLeftmostSetBitTest.java)
- 📄 [CountBitsFlipTest](src/test/java/com/thealgorithms/bitmanipulation/CountBitsFlipTest.java)
- 📄 [CountLeadingZerosTest](src/test/java/com/thealgorithms/bitmanipulation/CountLeadingZerosTest.java)
- 📄 [CountSetBitsTest](src/test/java/com/thealgorithms/bitmanipulation/CountSetBitsTest.java)
- 📄 [FindNthBitTest](src/test/java/com/thealgorithms/bitmanipulation/FindNthBitTest.java)
Expand Down Expand Up @@ -844,6 +860,7 @@
- 📄 [BinaryToDecimalTest](src/test/java/com/thealgorithms/conversions/BinaryToDecimalTest.java)
- 📄 [BinaryToHexadecimalTest](src/test/java/com/thealgorithms/conversions/BinaryToHexadecimalTest.java)
- 📄 [BinaryToOctalTest](src/test/java/com/thealgorithms/conversions/BinaryToOctalTest.java)
- 📄 [CoordinateConverterTest](src/test/java/com/thealgorithms/conversions/CoordinateConverterTest.java)
- 📄 [DecimalToAnyBaseTest](src/test/java/com/thealgorithms/conversions/DecimalToAnyBaseTest.java)
- 📄 [DecimalToBinaryTest](src/test/java/com/thealgorithms/conversions/DecimalToBinaryTest.java)
- 📄 [DecimalToHexadecimalTest](src/test/java/com/thealgorithms/conversions/DecimalToHexadecimalTest.java)
Expand All @@ -863,6 +880,7 @@
- 📄 [OctalToHexadecimalTest](src/test/java/com/thealgorithms/conversions/OctalToHexadecimalTest.java)
- 📄 [PhoneticAlphabetConverterTest](src/test/java/com/thealgorithms/conversions/PhoneticAlphabetConverterTest.java)
- 📄 [RomanToIntegerTest](src/test/java/com/thealgorithms/conversions/RomanToIntegerTest.java)
- 📄 [TimeConverterTest](src/test/java/com/thealgorithms/conversions/TimeConverterTest.java)
- 📄 [TurkishToLatinConversionTest](src/test/java/com/thealgorithms/conversions/TurkishToLatinConversionTest.java)
- 📄 [UnitConversionsTest](src/test/java/com/thealgorithms/conversions/UnitConversionsTest.java)
- 📄 [UnitsConverterTest](src/test/java/com/thealgorithms/conversions/UnitsConverterTest.java)
Expand Down Expand Up @@ -934,6 +952,7 @@
- 📄 [MinPriorityQueueTest](src/test/java/com/thealgorithms/datastructures/heaps/MinPriorityQueueTest.java)
- 📁 **lists**
- 📄 [CircleLinkedListTest](src/test/java/com/thealgorithms/datastructures/lists/CircleLinkedListTest.java)
- 📄 [CircularDoublyLinkedListTest](src/test/java/com/thealgorithms/datastructures/lists/CircularDoublyLinkedListTest.java)
- 📄 [CountSinglyLinkedListRecursionTest](src/test/java/com/thealgorithms/datastructures/lists/CountSinglyLinkedListRecursionTest.java)
- 📄 [CreateAndDetectLoopTest](src/test/java/com/thealgorithms/datastructures/lists/CreateAndDetectLoopTest.java)
- 📄 [CursorLinkedListTest](src/test/java/com/thealgorithms/datastructures/lists/CursorLinkedListTest.java)
Expand Down Expand Up @@ -990,6 +1009,9 @@
- 📄 [TrieTest](src/test/java/com/thealgorithms/datastructures/trees/TrieTest.java)
- 📄 [VerticalOrderTraversalTest](src/test/java/com/thealgorithms/datastructures/trees/VerticalOrderTraversalTest.java)
- 📄 [ZigzagTraversalTest](src/test/java/com/thealgorithms/datastructures/trees/ZigzagTraversalTest.java)
- 📁 **devutils**
- 📁 **entities**
- 📄 [ProcessDetailsTest](src/test/java/com/thealgorithms/devutils/entities/ProcessDetailsTest.java)
- 📁 **divideandconquer**
- 📄 [BinaryExponentiationTest](src/test/java/com/thealgorithms/divideandconquer/BinaryExponentiationTest.java)
- 📄 [ClosestPairTest](src/test/java/com/thealgorithms/divideandconquer/ClosestPairTest.java)
Expand Down Expand Up @@ -1052,11 +1074,14 @@
- 📄 [BresenhamLineTest](src/test/java/com/thealgorithms/geometry/BresenhamLineTest.java)
- 📄 [ConvexHullTest](src/test/java/com/thealgorithms/geometry/ConvexHullTest.java)
- 📄 [GrahamScanTest](src/test/java/com/thealgorithms/geometry/GrahamScanTest.java)
- 📄 [HaversineTest](src/test/java/com/thealgorithms/geometry/HaversineTest.java)
- 📄 [MidpointCircleTest](src/test/java/com/thealgorithms/geometry/MidpointCircleTest.java)
- 📄 [MidpointEllipseTest](src/test/java/com/thealgorithms/geometry/MidpointEllipseTest.java)
- 📄 [PointTest](src/test/java/com/thealgorithms/geometry/PointTest.java)
- 📁 **graph**
- 📄 [BronKerboschTest](src/test/java/com/thealgorithms/graph/BronKerboschTest.java)
- 📄 [ConstrainedShortestPathTest](src/test/java/com/thealgorithms/graph/ConstrainedShortestPathTest.java)
- 📄 [EdmondsKarpTest](src/test/java/com/thealgorithms/graph/EdmondsKarpTest.java)
- 📄 [HopcroftKarpTest](src/test/java/com/thealgorithms/graph/HopcroftKarpTest.java)
- 📄 [PredecessorConstrainedDfsTest](src/test/java/com/thealgorithms/graph/PredecessorConstrainedDfsTest.java)
- 📄 [StronglyConnectedComponentOptimizedTest](src/test/java/com/thealgorithms/graph/StronglyConnectedComponentOptimizedTest.java)
Expand Down Expand Up @@ -1150,6 +1175,7 @@
- 📄 [NonRepeatingElementTest](src/test/java/com/thealgorithms/maths/NonRepeatingElementTest.java)
- 📄 [NthUglyNumberTest](src/test/java/com/thealgorithms/maths/NthUglyNumberTest.java)
- 📄 [NumberOfDigitsTest](src/test/java/com/thealgorithms/maths/NumberOfDigitsTest.java)
- 📄 [NumberPersistenceTest](src/test/java/com/thealgorithms/maths/NumberPersistenceTest.java)
- 📄 [PalindromeNumberTest](src/test/java/com/thealgorithms/maths/PalindromeNumberTest.java)
- 📄 [ParseIntegerTest](src/test/java/com/thealgorithms/maths/ParseIntegerTest.java)
- 📄 [PascalTriangleTest](src/test/java/com/thealgorithms/maths/PascalTriangleTest.java)
Expand Down Expand Up @@ -1177,6 +1203,7 @@
- 📄 [SumOfArithmeticSeriesTest](src/test/java/com/thealgorithms/maths/SumOfArithmeticSeriesTest.java)
- 📄 [SumOfDigitsTest](src/test/java/com/thealgorithms/maths/SumOfDigitsTest.java)
- 📄 [SumOfOddNumbersTest](src/test/java/com/thealgorithms/maths/SumOfOddNumbersTest.java)
- 📄 [SumOfSquaresTest](src/test/java/com/thealgorithms/maths/SumOfSquaresTest.java)
- 📄 [SumWithoutArithmeticOperatorsTest](src/test/java/com/thealgorithms/maths/SumWithoutArithmeticOperatorsTest.java)
- 📄 [TestArmstrong](src/test/java/com/thealgorithms/maths/TestArmstrong.java)
- 📄 [TwinPrimeTest](src/test/java/com/thealgorithms/maths/TwinPrimeTest.java)
Expand Down Expand Up @@ -1227,6 +1254,7 @@
- 📄 [LinkListSortTest](src/test/java/com/thealgorithms/others/LinkListSortTest.java)
- 📄 [LowestBasePalindromeTest](src/test/java/com/thealgorithms/others/LowestBasePalindromeTest.java)
- 📄 [MaximumSumOfDistinctSubarraysWithLengthKTest](src/test/java/com/thealgorithms/others/MaximumSumOfDistinctSubarraysWithLengthKTest.java)
- 📄 [MiniMaxAlgorithmTest](src/test/java/com/thealgorithms/others/MiniMaxAlgorithmTest.java)
- 📄 [NewManShanksPrimeTest](src/test/java/com/thealgorithms/others/NewManShanksPrimeTest.java)
- 📄 [NextFitTest](src/test/java/com/thealgorithms/others/NextFitTest.java)
- 📄 [PasswordGenTest](src/test/java/com/thealgorithms/others/PasswordGenTest.java)
Expand All @@ -1251,6 +1279,7 @@
- 📁 **recursion**
- 📄 [FibonacciSeriesTest](src/test/java/com/thealgorithms/recursion/FibonacciSeriesTest.java)
- 📄 [GenerateSubsetsTest](src/test/java/com/thealgorithms/recursion/GenerateSubsetsTest.java)
- 📄 [SylvesterSequenceTest](src/test/java/com/thealgorithms/recursion/SylvesterSequenceTest.java)
- 📁 **scheduling**
- 📄 [AgingSchedulingTest](src/test/java/com/thealgorithms/scheduling/AgingSchedulingTest.java)
- 📄 [EDFSchedulingTest](src/test/java/com/thealgorithms/scheduling/EDFSchedulingTest.java)
Expand Down Expand Up @@ -1317,6 +1346,7 @@
- 📄 [MaxSumKSizeSubarrayTest](src/test/java/com/thealgorithms/slidingwindow/MaxSumKSizeSubarrayTest.java)
- 📄 [MaximumSlidingWindowTest](src/test/java/com/thealgorithms/slidingwindow/MaximumSlidingWindowTest.java)
- 📄 [MinSumKSizeSubarrayTest](src/test/java/com/thealgorithms/slidingwindow/MinSumKSizeSubarrayTest.java)
- 📄 [MinimumWindowSubstringTest](src/test/java/com/thealgorithms/slidingwindow/MinimumWindowSubstringTest.java)
- 📄 [ShortestCoprimeSegmentTest](src/test/java/com/thealgorithms/slidingwindow/ShortestCoprimeSegmentTest.java)
- 📁 **sorts**
- 📄 [AdaptiveMergeSortTest](src/test/java/com/thealgorithms/sorts/AdaptiveMergeSortTest.java)
Expand Down Expand Up @@ -1393,13 +1423,15 @@
- 📁 **strings**
- 📄 [AhoCorasickTest](src/test/java/com/thealgorithms/strings/AhoCorasickTest.java)
- 📄 [AlphabeticalTest](src/test/java/com/thealgorithms/strings/AlphabeticalTest.java)
- 📄 [AlternativeStringArrangeTest](src/test/java/com/thealgorithms/strings/AlternativeStringArrangeTest.java)
- 📄 [AnagramsTest](src/test/java/com/thealgorithms/strings/AnagramsTest.java)
- 📄 [CharactersSameTest](src/test/java/com/thealgorithms/strings/CharactersSameTest.java)
- 📄 [CheckVowelsTest](src/test/java/com/thealgorithms/strings/CheckVowelsTest.java)
- 📄 [CountCharTest](src/test/java/com/thealgorithms/strings/CountCharTest.java)
- 📄 [CountWordsTest](src/test/java/com/thealgorithms/strings/CountWordsTest.java)
- 📄 [HammingDistanceTest](src/test/java/com/thealgorithms/strings/HammingDistanceTest.java)
- 📄 [HorspoolSearchTest](src/test/java/com/thealgorithms/strings/HorspoolSearchTest.java)
- 📄 [IsogramTest](src/test/java/com/thealgorithms/strings/IsogramTest.java)
- 📄 [IsomorphicTest](src/test/java/com/thealgorithms/strings/IsomorphicTest.java)
- 📄 [LetterCombinationsOfPhoneNumberTest](src/test/java/com/thealgorithms/strings/LetterCombinationsOfPhoneNumberTest.java)
- 📄 [LongestCommonPrefixTest](src/test/java/com/thealgorithms/strings/LongestCommonPrefixTest.java)
Expand Down
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