export declare function calculateArcMetrics(startAngle: number, endAngle: number, radius: number): {
    totalAngle: number;
    circumference: number;
    arcLength: number;
};
/**
 * Convert a value to an angle within the gauge range
 */
export declare function valueToAngle(value: number, min: number, max: number, startAngle: number, endAngle: number): number;
/**
 * Convert angle from degrees to radians
 */
export declare function degreesToRadians(degrees: number): number;
/**
 * Convert radians to degrees
 */
export declare function radiansToDegrees(radians: number): number;
/**
 * Apply rotation offset to an angle
 */
export declare function applyRotationOffset(angle: number, offset?: number): number;
/**
 * Calculate point on circle given center, radius, and angle
 * In gauge coordinates: 0° = top (12 o'clock), 90° = right (3 o'clock)
 */
export declare function getPointOnCircle(centerX: number, centerY: number, radius: number, angleInDegrees: number): {
    x: number;
    y: number;
};
/**
 * Create SVG arc path
 */
export declare function createArcPath(centerX: number, centerY: number, radius: number, startAngle: number, endAngle: number, largeArcFlag?: boolean): string;
/**
 * Generate tick positions for a gauge
 */
export declare function generateTickPositions(min: number, max: number, majorCount: number, minorCount?: number): {
    major: number[];
    minor: number[];
};
/**
 * Generate label positions for a gauge
 */
export declare function generateLabelPositions(min: number, max: number, count: number): number[];
/**
 * Clamp a value between min and max
 */
export declare function clamp(value: number, min: number, max: number): number;
/**
 * Linear interpolation between two values
 */
export declare function lerp(start: number, end: number, t: number): number;
/**
 * Get the appropriate color for a value based on ranges
 */
export declare function getColorForValue(value: number, ranges: Array<{
    from: number;
    to: number;
    color: string;
}>, defaultColor: string): string;
/**
 * Calculate the SVG viewBox for a gauge
 */
export declare function calculateViewBox(size: number, thickness: number, padding?: number): string;
/**
 * Normalize angle to 0-360 range
 */
export declare function normalizeAngle(angle: number): number;
/**
 * Calculate the shortest angle difference between two angles
 */
export declare function angleDifference(angle1: number, angle2: number): number;