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geoRangeFilter.ts
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105 lines (95 loc) · 3.1 KB
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import { GeoFilter } from "./geoFilter";
import { GeoFilterItem } from "./geoFilterItem";
export abstract class GeoRangeFilter extends GeoFilter {
public ranges: Number[][] = [];
public allowedValues: Number[] = [];
public disallowedValues: Number[] = [];
constructor(filterItems: GeoFilterItem[]) {
super(filterItems);
}
initializeCore() {
this.filterItems.sort((a, b) => +a.value - +b.value);
for (let i = 0; i < this.filterItems.length; i++) {
let filterItem = this.filterItems[i];
this.key = filterItem.key;
let value = +filterItem.value;
switch (filterItem.operator) {
case "!=":
this.disallowedValues.push(value);
break;
case "=":
this.allowedValues.push(value);
break;
}
}
}
matchFeatureCore(feature: any, zoom: number): boolean {
let currentValue;
if (this.replacedValueToIndex) {
currentValue = feature.getProperties()[this.key];
}
else {
currentValue = feature.getProperties()[this.key];
}
return this.isInRange(+currentValue);
}
replaceVaulesToPbfIndexCore(pbfLayer) {
this.replacedValueToIndex = true;
}
isInRange(currentValue: any): boolean {
if (this.disallowedValues.includes(currentValue)) {
return false;
}
if (this.allowedValues.includes(currentValue)) {
return true;
}
for (var i = 0; i < this.filterItems.length; i++) {
var filterItem = this.filterItems[i];
var value = +filterItem.value;
switch (filterItem.operator) {
case ">":
if (!(currentValue > value)) {
return false;
}
break;
case ">=":
if (!(currentValue >= value)) {
return false;
}
break;
case "<":
if (!(currentValue < value)) {
return false;
}
break;
case "<=":
if (!(currentValue <= value)) {
return false;
}
break;
case "=":
if (!(currentValue === value)) {
return false;
}
break;
case "!=":
if (!(currentValue !== value)) {
return false;
}
break;
default:
break;
}
}
return true;
}
private static getRange(ranges: Number[][], value: number): Number[] {
for (let i = 0; i < ranges.length; i++) {
let range = ranges[i];
if (value >= range[0] && value <= range[1]) {
return range;
}
}
return null;
}
}