Function getL7Filter

src/common/mapping/utils/L7LayerUtil.js:189–220

(filter, featureFilter)

}

export function getL7Filter(filter, featureFilter) {
  if (!filter) {
    return;
  }
  const [condition, ...expressions] = filter;
  const newExpressions = expressions.filter((exp) => {
    const [, f] = exp;
    if (['$type', '$id'].includes(f)) {
      return false;
    }
    return true;
  });
  const field = Array.from(new Set(getFilterFields(newExpressions)));
  const fFilter = featureFilter([condition, ...newExpressions]);
  const filterFunc = fFilter.filter.bind(fFilter);
  return {
    field,
    values: (...args) => {
      const properties = {};
      field.forEach((f, idx) => {
        properties[f] = args[idx];
      });
      const result = filterFunc(
        {},
        {
          properties
        }
      );
      return result;
    }
  };
}

export function L7LayerUtil(config) {
  const { featureFilter, expression, spec, L7Layer, L7, proj4 } = config;