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

import 'dart:ui';

import 'package:fis_measure/interfaces/process/items/item.dart';
import 'package:fis_measure/interfaces/process/items/item_metas.dart';
import 'package:fis_measure/interfaces/process/items/types.dart';
import 'package:fis_measure/interfaces/process/workspace/point_info.dart';
import 'package:fis_measure/process/calcuators/a_b_ratio.dart';
import 'package:fis_measure/process/calcuators/calculator.dart';
import 'package:fis_measure/process/calcuators/stenosis.dart';
import 'package:fis_measure/process/calcuators/three_distance.dart';
import 'package:fis_measure/process/calcuators/two_distance.dart';
import 'package:fis_measure/process/items/item_feature.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/straightline.dart';
import 'package:fis_measure/process/primitives/trace.dart';

import 'two_length.dart';

class LvTest extends TwoLengthAbstract<LvTestFeature> {
  static const String _area1Key = "D1";
  static const String _area2Key = "D2";

  late final StraightLine a1;
  late final StraightLine a2;

  LvTest(ItemMeta meta) : super(meta) {
    final metaA1 = meta.getChildByName(_area1Key)!;
    final metaA2 = meta.getChildByName(_area2Key)!;
    a1 = StraightLine.createDistance(metaA1, this);
    a2 = StraightLine.createDistance(metaA2, this);
    childItems.add(a1);
    childItems.add(a2);
  }

  @override
  StraightLine get child1 => a1;

  @override
  StraightLine get child2 => a2;

  @override
  bool get isMultiFrameMode => true;

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

  @override
  void onCancelingOnce() {}

  static LvTest crateTest(ItemMeta meta, [IMeasureItem? parent]) {
    var instance = LvTest(meta);
    instance.calculator = _TestTwoDistanceSumCal(instance);

    return instance;
  }
}

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

class _TestTwoDistanceSumCal extends Calculator<LvTest, double> {
  _TestTwoDistanceSumCal(LvTest ref) : super(ref);

  @override
  void calculate() {
    if (ref.feature == null) return;

    final f1 = findChildFeature(ref.child1);
    final f2 = findChildFeature(ref.child2);
    if (f1 == null || f2 == null) return;

    final feature = ref.feature!;

    final val1 = f1.value?.pickFloat() ?? 0;
    final val2 = f2.value?.pickFloat() ?? 0;

    final outputMeta = ref.meta.outputs.first;
    double avg = (val1 + val2) / 2;
    feature.updateFloatValue(outputMeta, avg, outputMeta.unit);
  }
}