Map Range

Remaps a signal from one range to another. Set the range the signal comes in on (From) and the range you want out (To), and Map Range does the math. A value at From Low comes out as To Low, a value at From High comes out as To High, and everything in between scales to match.

Use it when you know the ranges but don't want to work out a multiply and an offset, for example turning an oscillator's −1 to 1 into a rotation that only sweeps a quarter turn.

Inputs

Port	Type	Default	Range	Description
Value	Scalar	0.0	any	The signal to remap
From Low	Scalar	0.0	any	Input that maps to To Low. Set it above From High to invert the mapping
From High	Scalar	1.0	any	Input that maps to To High
To Low	Scalar	0.0	any	Output when Value equals From Low
To High	Scalar	1.0	any	Output when Value equals From High. Set it below To Low to invert the output

Outputs

Port	Type	Description
Out	Scalar	The remapped value

Controls

Limit: what happens when Value goes outside the From range.
- Off: keeps scaling past the To range.
- Clamp: holds at the To ends.
- Loop: wraps back to the start, like a sawtooth.
- Zigzag: bounces back and forth, like a triangle.

Ideas

Remap an Oscillator's −1 to 1 into 0.2–0.8 to keep a parameter away from its extremes.
Feed BPM's Beat Position in with From 0–4, To 0–1, and Limit on Loop for a ramp that repeats every bar.
Turn a Phasor's Wrap off and run it through Map Range on Zigzag for a smooth ping-pong that never snaps back.
Swap To Low and To High to flip a signal, so a rising envelope dims a frame instead of brightening it.

Tips

Looping an ever-increasing signal like Beat Position stays precise even after hours of playback.
If From Low and From High are equal, the output is To Low.
Like the other math nodes, Map Range works per point when its inputs vary across the frame.

Multiply Add: scale and offset when you think in factors rather than ranges
Arithmetic (Clamp): restrict a signal to a range without remapping it
Phasor: with Wrap off, a common input for Loop and Zigzag