Sample Curve

What It Does

Evaluates a curve at a specific point along its length, returning the exact coordinates (x,y) at that position. This allows you to get precise values from a curve at any point between its start and end.

Inputs

Name	Description	Type	Required
curve	The curve to sample	Curve	Yes
sample	The position along the curve to evaluate (0-1)	Number	No

Outputs

Name	Description	Type
value	The coordinates at the sample point as a 2D vector	Vector2
x	The x-coordinate at the sample point	Number
y	The y-coordinate at the sample point	Number

Sample Curve Example

How to Use It

1. Drag the Sample Curve node into your graph.

2. Connect a curve (like from a Bezier Curve node) to the "curve" input.

3. Set the "sample" input to a value between 0 and 1 (default is 0.5, which is the middle of the curve).

4. Run the graph—the outputs will be the coordinates at that point on the curve.

   • For a standard Bezier with default control points, at sample=0.5, you might get value=[0.5, 0.5]

Tips

• The sample value represents the progression along the curve, where 0 is the start and 1 is the end.

• For Bezier curves, the sample doesn't directly correspond to x-coordinates—a sample of 0.5 might not give you an x-coordinate of 0.5 due to the curve's shape.

• Use this node to map progress (0-1) to actual coordinate values along a curve.

See Also

• Bezier Curve: For creating curves that can be sampled.

• Preset Beziers: For commonly used predefined curves.

• Float Curve: For more complex curve definitions.

Use Cases

• Animation Paths: Calculate positions along a curved path for smooth movement.

• Easing Functions: Convert linear progress to eased values for natural animations.

• Data Visualization: Map data points to curved representations instead of straight lines.