furqaankhan commented on code in PR #1684:
URL: https://github.com/apache/sedona/pull/1684#discussion_r1847451053
##########
common/src/test/java/org/apache/sedona/common/FunctionsTest.java:
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@@ -4086,4 +4086,29 @@ public void rotate() throws ParseException {
"LINESTRING (0 0, -0.8390715290764524 -0.5440211108893698,
-0.2950504181870827 -1.383092639965822, 0 0)",
result);
}
+
+ @Test
+ public void interpolatePoint() throws ParseException {
+ Geometry line = Constructors.geomFromEWKT("LINESTRING M (0 0 0, 2 0 2, 4 0
4)");
+ Geometry point = Constructors.geomFromEWKT("POINT(1 1)");
+
+ double actual = Functions.interpolatePoint(line, point);
+ double expected = 1.0;
+ assertEquals(expected, actual, 1e-6);
+
+ line = Constructors.geomFromEWKT("LINESTRING M (0 0 0, -2 2 2, -4 4 4)");
+ point = Constructors.geomFromEWKT("POINT(-1 1)");
+ actual = Functions.interpolatePoint(line, point);
+ assertEquals(expected, actual, 1e-6);
+
+ line = Constructors.geomFromEWKT("LINESTRING M (0 0 0, 2 2 2, 4 0 4)");
+ point = Constructors.geomFromEWKT("POINT(2 0)");
+ actual = Functions.interpolatePoint(line, point);
+ assertEquals(expected, actual, 1e-6);
+
+ point = Constructors.geomFromEWKT("POINT(2.5 1)");
+ actual = Functions.interpolatePoint(line, point);
+ expected = 2.75;
+ assertEquals(expected, actual, 1e-6);
Review Comment:
can you add a test for Linestring without the M ordinate?
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