Merge pull request #73 from clickbar/fix-precision-formatting

fix(geometries): Fix missing precision in WKT coordinates

CHANGELOG.md

@@ -29,7 +29,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Use of ST functions directly in the Laravel default builder methods
 - Use of ST functions directly in Model::create array
 - Renamed parameters of ST functions that can receive geometry or geography from `$geometry` to `$geometryOrGeography`
-- Geometry & Box implements `Expression` and therefore can be used in `->select(...)` directly now 
+- Geometry & Box implements `Expression` and therefore can be used in `->select(...)` directly now
+
+### Fixed
+
+- Fixed only using a precision of 6 decimal digits in WKT, now uses the maximum precision
 
 ### Removed
 

src/Data/Geometries/GeometryHelper.php

@@ -21,7 +21,9 @@ public static function assertValidGeometryInput(int $minCount, string $class, ar
 
     public static function stringifyFloat($float): string
     {
-        // normalized output among locales
-        return trim(trim(rtrim(sprintf('%15F', $float), '0'), '.'));
+        // Use json_encode to use serialization precision instead of
+        // PHP's default format precision.
+        // See https://wiki.php.net/rfc/precise_float_value
+        return json_encode($float);
     }
 }

tests/Generator/WKT/WKTGeneratorPointTest.php

@@ -127,3 +127,12 @@
 
     expect($pointWKT)->toBe('SRID=4326;POINT ZM(8.12345 50.12345 10 20)');
 })->group('WKT Point');
+
+// Test the float precision of the WKT generator
+test('can generate 2D WKT Point with high float precision', function () {
+    $point = Point::make(8.1234567890123456789, 50.123456789012344);
+
+    $pointWKT = $this->generator->generate($point);
+
+    expect($pointWKT)->toBe('POINT(8.123456789012346 50.123456789012344)');
+})->group('WKT Point');