Method columnDistinctSignal

resources/vega-lite.min.js:12996–13000

()

      return this.child.assembleLayoutSignals();
    }
    columnDistinctSignal() {
      if (!(this.parent && this.parent instanceof pp)) {
        return { signal: `length(data('${this.getName("column_domain")}'))` };
      }
    }
    assembleGroupStyle() {}
    assembleGroup(e) {
      return this.parent && this.parent instanceof pp