@codewithvincent/react-native-gps-filter/dist/utils/locationFilters.js

Kalman-based adaptive GPS filter for React Native.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.kalmanFilterOptions = exports.GPS_SPEED_THRESHOLD = exports.KALMAN_REJECT_THRESHOLD = void 0;
exports.getAdaptiveThresholds = getAdaptiveThresholds;
exports.KALMAN_REJECT_THRESHOLD = 3;
exports.GPS_SPEED_THRESHOLD = 0.1;
exports.kalmanFilterOptions = {
    R: 0.01,
    Q: 10,
    A: 1,
    B: 0,
    C: 1,
};
function getAdaptiveThresholds(speed) {
    if (speed < 0.3) {
        return {
            minDelta: 1,
            maxDelta: 5,
            maxAllowedDelta: 20,
            mode: "stationary",
        };
    }
    else if (speed < 2) {
        return {
            minDelta: 1.5,
            maxDelta: 30,
            maxAllowedDelta: 40,
            mode: "walking",
        };
    }
    else if (speed < 5) {
        return {
            minDelta: 2,
            maxDelta: 50,
            maxAllowedDelta: 60,
            mode: "running",
        };
    }
    else {
        return {
            minDelta: 3,
            maxDelta: 120,
            maxAllowedDelta: 100,
            mode: "driving",
        };
    }
}