1hew-ComfyUI-1hewNodes/web/docs/1hew_RangeMapping/en.md

Range Mapping - Map 0–1 to [min, max]

Node Purpose: Range Mapping maps a normalized value value ∈ [0,1] to a target range [min, max], with configurable decimal rounding or integer casting.

Inputs

Name	Port	Type	Default	Range	Description
value	-	FLOAT	1.0	0.0–1.0	Normalized input value; slider control for precise mapping.
min	-	FLOAT	0.0	large range	Lower bound of mapping range.
max	-	FLOAT	1.0	large range	Upper bound of mapping range.
rounding	-	INT	3	0–10	Decimal places; 0 casts to integer.

Outputs

Name	Type	Description
float	FLOAT	Mapped value after rounding/int casting.
int	INT	Integer form of the mapped value.

Features

• Linear mapping: actual = min + value × (max − min).
• Rounding control: when rounding>0, rounds to rounding decimals; otherwise casts to int.
• Dual outputs: returns both float and int forms for flexible downstream usage.
• Wide bounds: accepts very large positive/negative bounds for min/max.

Typical Usage

• Parameter scaling: drive model thresholds by mapping a slider to [min, max].
• Integer steps: set rounding=0 to generate enumerated indices from a normalized input.
• Inverted ranges: swap min and max to map decreasing scales.

Notes & Tips

• Keep value within 0–1 for well-defined behavior; the UI range enforces this.
• Choose rounding according to downstream precision requirements; integer casting helps produce discrete categories.