@phi-ag/rvt/dist/cfb/boundaries.js

Parse Revit file format

export class Boundaries {
    items = [];
    add([start, end]) {
        const previous = this.items[this.items.length - 1];
        if (previous === undefined) {
            this.items.push([start, end, 0]);
            return;
        }
        const [prevStart, prevEnd, prevOffset] = previous;
        if (prevEnd !== start) {
            const offset = prevEnd - prevStart + prevOffset;
            this.items.push([start, end, offset]);
        }
        else {
            previous[1] = end;
        }
    }
    size() {
        const last = this.items[this.items.length - 1];
        if (last === undefined)
            return 0;
        const [start, end, offset] = last;
        return end - start + offset;
    }
}