47 lines
1.6 KiB
TypeScript
47 lines
1.6 KiB
TypeScript
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/**
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* Calculates the center point and bounding box extent of a measurement based on its points.
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* @param {Object} measurement - The measurement object containing points
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* @param {Array<Array<number>>} measurement.points - Array of 3D points [x, y, z]
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* @returns {Object} Object containing center and extent
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* @returns {Array<number>} returns.center - The center point [x, y, z]
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* @returns {Object} returns.extent - The bounding box extent with min and max points
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*/
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export const getCenterExtent = (measurement: { points?: number[][] }) => {
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const { points } = measurement;
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if (!points || !Array.isArray(points) || points.length === 0) {
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// Return default values if no points are available
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const defaultCenter: [number, number, number] = [0, 0, 0];
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const defaultExtent = {
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min: [0, 0, 0] as [number, number, number],
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max: [0, 0, 0] as [number, number, number],
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};
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return { center: defaultCenter, extent: defaultExtent };
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}
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// Initialize min and max with the first point
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const min: [number, number, number] = [...points[0]] as [number, number, number];
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const max: [number, number, number] = [...points[0]] as [number, number, number];
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// Find the bounding box by iterating through all points
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for (let i = 1; i < points.length; i++) {
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const point = points[i];
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for (let j = 0; j < 3; j++) {
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min[j] = Math.min(min[j], point[j]);
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max[j] = Math.max(max[j], point[j]);
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}
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}
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// Calculate the center point
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const center: [number, number, number] = [
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(min[0] + max[0]) / 2,
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(min[1] + max[1]) / 2,
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(min[2] + max[2]) / 2,
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];
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return {
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center,
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extent: { min, max },
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};
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};
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