Rename Curve/Curve2D/Curve3D/Gradient `interpolate()` to `sample()`

"sampling" is a more accurate term than "interpolating" for what's
happening when using that function.

4 files changed, 41 insertions, 41 deletions

diff --git a/doc/classes/Curve.xml b/doc/classes/Curve.xml
index ae9add995b..20b9dafd0d 100644
--- a/doc/classes/Curve.xml
+++ b/doc/classes/Curve.xml
@@ -74,27 +74,27 @@
 				Returns the right tangent angle (in degrees) for the point at [param index].
 			</description>
 		</method>
-		<method name="interpolate" qualifiers="const">
+		<method name="remove_point">
+			<return type="void" />
+			<param index="0" name="index" type="int" />
+			<description>
+				Removes the point at [code]index[/code] from the curve.
+			</description>
+		</method>
+		<method name="sample" qualifiers="const">
 			<return type="float" />
 			<param index="0" name="offset" type="float" />
 			<description>
 				Returns the Y value for the point that would exist at the X position [param offset] along the curve.
 			</description>
 		</method>
-		<method name="interpolate_baked" qualifiers="const">
+		<method name="sample_baked" qualifiers="const">
 			<return type="float" />
 			<param index="0" name="offset" type="float" />
 			<description>
 				Returns the Y value for the point that would exist at the X position [param offset] along the curve using the baked cache. Bakes the curve's points if not already baked.
 			</description>
 		</method>
-		<method name="remove_point">
-			<return type="void" />
-			<param index="0" name="index" type="int" />
-			<description>
-				Removes the point at [param index] from the curve.
-			</description>
-		</method>
 		<method name="set_point_left_mode">
 			<return type="void" />
 			<param index="0" name="index" type="int" />
diff --git a/doc/classes/Curve2D.xml b/doc/classes/Curve2D.xml
index f15c0d74ca..cc4124d084 100644
--- a/doc/classes/Curve2D.xml
+++ b/doc/classes/Curve2D.xml
@@ -43,7 +43,7 @@
 			<return type="float" />
 			<param index="0" name="to_point" type="Vector2" />
 			<description>
-				Returns the closest offset to [param to_point]. This offset is meant to be used in [method interpolate_baked].
+				Returns the closest offset to [param to_point]. This offset is meant to be used in [method sample_baked].
 				[param to_point] must be in this curve's local space.
 			</description>
 		</method>
@@ -76,7 +76,14 @@
 				Returns the position of the vertex [param idx]. If the index is out of bounds, the function sends an error to the console, and returns [code](0, 0)[/code].
 			</description>
 		</method>
-		<method name="interpolate" qualifiers="const">
+		<method name="remove_point">
+			<return type="void" />
+			<param index="0" name="idx" type="int" />
+			<description>
+				Deletes the point [code]idx[/code] from the curve. Sends an error to the console if [code]idx[/code] is out of bounds.
+			</description>
+		</method>
+		<method name="sample" qualifiers="const">
 			<return type="Vector2" />
 			<param index="0" name="idx" type="int" />
 			<param index="1" name="t" type="float" />
@@ -85,7 +92,7 @@
 				If [param idx] is out of bounds it is truncated to the first or last vertex, and [param t] is ignored. If the curve has no points, the function sends an error to the console, and returns [code](0, 0)[/code].
 			</description>
 		</method>
-		<method name="interpolate_baked" qualifiers="const">
+		<method name="sample_baked" qualifiers="const">
 			<return type="Vector2" />
 			<param index="0" name="offset" type="float" />
 			<param index="1" name="cubic" type="bool" default="false" />
@@ -95,18 +102,11 @@
 				Cubic interpolation tends to follow the curves better, but linear is faster (and often, precise enough).
 			</description>
 		</method>
-		<method name="interpolatef" qualifiers="const">
+		<method name="samplef" qualifiers="const">
 			<return type="Vector2" />
 			<param index="0" name="fofs" type="float" />
 			<description>
-				Returns the position at the vertex [param fofs]. It calls [method interpolate] using the integer part of [param fofs] as [code]idx[/code], and its fractional part as [code]t[/code].
-			</description>
-		</method>
-		<method name="remove_point">
-			<return type="void" />
-			<param index="0" name="idx" type="int" />
-			<description>
-				Deletes the point [param idx] from the curve. Sends an error to the console if [param idx] is out of bounds.
+				Returns the position at the vertex [param fofs]. It calls [method sample] using the integer part of [param fofs] as [code]idx[/code], and its fractional part as [code]t[/code].
 			</description>
 		</method>
 		<method name="set_point_in">
diff --git a/doc/classes/Curve3D.xml b/doc/classes/Curve3D.xml
index 0843453820..3e4e05f51a 100644
--- a/doc/classes/Curve3D.xml
+++ b/doc/classes/Curve3D.xml
@@ -56,7 +56,7 @@
 			<return type="float" />
 			<param index="0" name="to_point" type="Vector3" />
 			<description>
-				Returns the closest offset to [param to_point]. This offset is meant to be used in [method interpolate_baked] or [method interpolate_baked_up_vector].
+				Returns the closest offset to [param to_point]. This offset is meant to be used in [method sample_baked] or [method sample_baked_up_vector].
 				[param to_point] must be in this curve's local space.
 			</description>
 		</method>
@@ -96,7 +96,14 @@
 				Returns the tilt angle in radians for the point [param idx]. If the index is out of bounds, the function sends an error to the console, and returns [code]0[/code].
 			</description>
 		</method>
-		<method name="interpolate" qualifiers="const">
+		<method name="remove_point">
+			<return type="void" />
+			<param index="0" name="idx" type="int" />
+			<description>
+				Deletes the point [code]idx[/code] from the curve. Sends an error to the console if [code]idx[/code] is out of bounds.
+			</description>
+		</method>
+		<method name="sample" qualifiers="const">
 			<return type="Vector3" />
 			<param index="0" name="idx" type="int" />
 			<param index="1" name="t" type="float" />
@@ -105,7 +112,7 @@
 				If [param idx] is out of bounds it is truncated to the first or last vertex, and [param t] is ignored. If the curve has no points, the function sends an error to the console, and returns [code](0, 0, 0)[/code].
 			</description>
 		</method>
-		<method name="interpolate_baked" qualifiers="const">
+		<method name="sample_baked" qualifiers="const">
 			<return type="Vector3" />
 			<param index="0" name="offset" type="float" />
 			<param index="1" name="cubic" type="bool" default="false" />
@@ -115,7 +122,7 @@
 				Cubic interpolation tends to follow the curves better, but linear is faster (and often, precise enough).
 			</description>
 		</method>
-		<method name="interpolate_baked_up_vector" qualifiers="const">
+		<method name="sample_baked_up_vector" qualifiers="const">
 			<return type="Vector3" />
 			<param index="0" name="offset" type="float" />
 			<param index="1" name="apply_tilt" type="bool" default="false" />
@@ -125,18 +132,11 @@
 				If the curve has no up vectors, the function sends an error to the console, and returns [code](0, 1, 0)[/code].
 			</description>
 		</method>
-		<method name="interpolatef" qualifiers="const">
+		<method name="samplef" qualifiers="const">
 			<return type="Vector3" />
 			<param index="0" name="fofs" type="float" />
 			<description>
-				Returns the position at the vertex [param fofs]. It calls [method interpolate] using the integer part of [param fofs] as [code]idx[/code], and its fractional part as [code]t[/code].
-			</description>
-		</method>
-		<method name="remove_point">
-			<return type="void" />
-			<param index="0" name="idx" type="int" />
-			<description>
-				Deletes the point [param idx] from the curve. Sends an error to the console if [param idx] is out of bounds.
+				Returns the position at the vertex [param fofs]. It calls [method sample] using the integer part of [param fofs] as [code]idx[/code], and its fractional part as [code]t[/code].
 			</description>
 		</method>
 		<method name="set_point_in">
diff --git a/doc/classes/Gradient.xml b/doc/classes/Gradient.xml
index f081174b67..33f0a7979a 100644
--- a/doc/classes/Gradient.xml
+++ b/doc/classes/Gradient.xml
@@ -38,13 +38,6 @@
 				Returns the number of colors in the gradient.
 			</description>
 		</method>
-		<method name="interpolate">
-			<return type="Color" />
-			<param index="0" name="offset" type="float" />
-			<description>
-				Returns the interpolated color specified by [param offset].
-			</description>
-		</method>
 		<method name="remove_point">
 			<return type="void" />
 			<param index="0" name="point" type="int" />
@@ -58,6 +51,13 @@
 				Reverses/mirrors the gradient.
 			</description>
 		</method>
+		<method name="sample">
+			<return type="Color" />
+			<param index="0" name="offset" type="float" />
+			<description>
+				Returns the interpolated color specified by [code]offset[/code].
+			</description>
+		</method>
 		<method name="set_color">
 			<return type="void" />
 			<param index="0" name="point" type="int" />