fis_lib_measure/lib/process/primitives/combos/flow_area_vti.dart

import 'package:fis_measure/interfaces/process/items/item.dart';
import 'package:fis_measure/interfaces/process/items/item_metas.dart';
import 'package:fis_measure/process/calcuators/flow.dart';
import 'package:fis_measure/process/items/top_item.dart';
import 'package:fis_measure/process/items/top_item_feature.dart';
import 'package:fis_measure/process/primitives/multi_method/multiple_trace.dart';
import 'package:fis_measure/process/primitives/straightline.dart';

class FlowAreaByVti extends TopMeasureItem<FlowAreaByVtiFeature> {
  late final StraightLine l;
  late final MultiTrace trace1;
  late final MultiTrace trace2;

  FlowAreaByVti(super.meta) {
    final metaDiam = meta.childItems[0];
    final metaTrace1 = meta.childItems[1];
    final metaTrace2 = meta.childItems[2];
    l = StraightLine.createDistance(metaDiam, this);
    trace1 = MultiTrace.createTrace(metaTrace1, this);
    trace2 = MultiTrace.createTrace(metaTrace2, this);
    childItems.add(l);
    childItems.add(trace1);
    childItems.add(trace2);
  }

  @override
  FlowAreaByVtiFeature buildFeature() => FlowAreaByVtiFeature(this);

  static FlowAreaByVti createFlowAreaByVti(ItemMeta meta,
      [IMeasureItem? parent]) {
    var ins = FlowAreaByVti(meta);
    ins.canChildOutputSelf = false;
    ins.calculator = FlowAreaByVTICal(ins);
    return ins;
  }
}

class FlowAreaByVtiFeature extends TopMeasureItemFeature {
  FlowAreaByVtiFeature(
    ITopMeasureItem refItem,
  ) : super(refItem);
}