@cornerstonejs/core/dist/esm/utilities/FrameRange.js

Cornerstone3D Core

class FrameRange {
    static imageIdToFrames(imageId) {
        const match = imageId.match(this.frameRangeExtractor);
        if (!match || !match[2]) {
            return null;
        }
        const range = match[2].split('-').map((it) => Number(it));
        if (range.length === 1) {
            return range[0];
        }
        return range;
    }
    static imageIdToFrameEnd(imageId) {
        const range = this.imageIdToFrames(imageId);
        return Array.isArray(range) ? range[1] : range;
    }
    static imageIdToFrameStart(imageId) {
        const range = this.imageIdToFrames(imageId);
        return Array.isArray(range) ? range[0] : range;
    }
    static framesToString(range) {
        if (Array.isArray(range)) {
            return `${range[0]}-${range[1]}`;
        }
        return String(range);
    }
    static framesToImageId(imageId, range) {
        const match = imageId.match(this.frameRangeExtractor);
        if (!match || !match[2]) {
            return null;
        }
        const newRangeString = this.framesToString(range);
        return imageId.replace(this.frameRangeExtractor, `${match[1]}${newRangeString}`);
    }
}
FrameRange.frameRangeExtractor = /(\/frames\/|[&?]frameNumber=)([^/&?]*)/i;
export default FrameRange;