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vanilla.html

react.html

vue.html

common.ts

variables.css

variables.ts

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1" />
    <script crossorigin src="https://cdn.jsdelivr.net/npm/@babel/standalone@7/babel.min.js"></script>
    <script crossorigin src="https://cdn.jsdelivr.net/npm/satellite.js@5.0.0/dist/satellite.min.js"></script>
    <!-- To make the map appear, you must add your apikey -->
    <script src="https://js.api.mappable.world/v3/?apikey=<YOUR_APIKEY>&lang=en_US" type="text/javascript"></script>

    <script
      data-plugins="transform-modules-umd"
      data-presets="typescript"
      type="text/babel"
      src="../variables.ts"
    ></script>
    <script
      data-plugins="transform-modules-umd"
      data-presets="typescript"
      type="text/babel"
      src="./common.ts"
    ></script>
    <script data-plugins="transform-modules-umd" data-presets="typescript" type="text/babel">
      import {LngLat} from '@mappable-world/mappable-types/imperative';
      import {
        animateMarker,
        ANIMATION_DURATION,
        BEHAVIORS,
        getLocation,
        getSatelliteRoute,
        LOCATION,
        MARKER_IMAGE_PATH
      } from './common';
      import {LINE_STRING_STYLE} from '../variables';

      // Initialize global variables
      window.map = null;

      // Main function to initialize the application
      main();
      async function main() {
        await mappable.ready;

        const {MMap, MMapDefaultSchemeLayer, MMapDefaultFeaturesLayer, MMapMarker, MMapFeature} = mappable;

        map = new MMap(
          document.getElementById('app'),
          {location: LOCATION, behaviors: BEHAVIORS, showScaleInCopyrights: true},
          [new MMapDefaultSchemeLayer({}), new MMapDefaultFeaturesLayer({})]
        );

        const markerElement = document.createElement('div');
        markerElement.className = 'marker-container';
        const markerImg = document.createElement('img');
        markerImg.src = MARKER_IMAGE_PATH;
        markerImg.alt = 'marker';
        markerElement.appendChild(markerImg);

        const marker = new MMapMarker({disableRoundCoordinates: true, coordinates: [0, 0]}, markerElement);

        const feature = new MMapFeature({
          geometry: {type: 'MultiLineString', coordinates: []},
          style: LINE_STRING_STYLE
        });
        map.addChild(feature);

        let prevCoordinates: LngLat;
        await fetchData();

        // Set an interval to update the location periodically
        setInterval(fetchData, ANIMATION_DURATION);

        async function fetchData() {
          const newCoordinates = await getLocation();

          const lineCoordinates = await getSatelliteRoute();

          if (!map.children.includes(marker)) {
            marker.update({coordinates: newCoordinates});
            map.addChild(marker);
          }
          if (!prevCoordinates) {
            map.setLocation({center: newCoordinates});
          } else {
            animateMarker(prevCoordinates, newCoordinates, (lngLat) => {
              map.setLocation({center: lngLat});
              marker.update({coordinates: lngLat});
            });
          }

          prevCoordinates = newCoordinates;
          feature.update({geometry: {type: 'MultiLineString', coordinates: lineCoordinates}});
        }
      }
    </script>

    <!-- prettier-ignore -->
    <style> html, body, #app { width: 100%; height: 100%; margin: 0; padding: 0; font-family: Arial, Helvetica, sans-serif; } .toolbar { position: absolute; z-index: 1000; top: 0; left: 0; display: flex; align-items: center; padding: 16px; } .toolbar a { padding: 16px; }  </style>
    <link rel="stylesheet" href="../variables.css" />
  </head>
  <body>
    <div id="app"></div>
  </body>
</html>

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1" />
    <script crossorigin src="https://cdn.jsdelivr.net/npm/react@17/umd/react.production.min.js"></script>
    <script crossorigin src="https://cdn.jsdelivr.net/npm/react-dom@17/umd/react-dom.production.min.js"></script>
    <script crossorigin src="https://cdn.jsdelivr.net/npm/@babel/standalone@7/babel.min.js"></script>
    <script crossorigin src="https://cdn.jsdelivr.net/npm/satellite.js@5.0.0/dist/satellite.min.js"></script>
    <!-- To make the map appear, you must add your apikey -->
    <script src="https://js.api.mappable.world/v3/?apikey=<YOUR_APIKEY>&lang=en_US" type="text/javascript"></script>

    <script
      data-plugins="transform-modules-umd"
      data-presets="typescript"
      type="text/babel"
      src="../variables.ts"
    ></script>
    <script
      data-plugins="transform-modules-umd"
      data-presets="typescript"
      type="text/babel"
      src="./common.ts"
    ></script>
    <script data-plugins="transform-modules-umd" data-presets="react, typescript" type="text/babel">
      import {LngLat} from '@mappable-world/mappable-types';
      import {
          animateMarker,
          ANIMATION_DURATION,
          BEHAVIORS,
          getLocation,
          getSatelliteRoute,
          LOCATION,
          MARKER_IMAGE_PATH
      } from './common';
      import {LINE_STRING_STYLE} from '../variables';

      // Global variable to hold the map instance
      window.map = null;

      // Main function to initialize the application
      main();

      async function main() {
          // Import Mappable maps and wait for the library to be ready
          const [mappableReact] = await Promise.all([mappable.import('@mappable-world/mappable-reactify'), mappable.ready]);

          // Reactify Mappable maps for use with React
          const reactify = mappableReact.reactify.bindTo(React, ReactDOM);
          const {MMap, MMapDefaultSchemeLayer, MMapDefaultFeaturesLayer, MMapMarker, MMapFeature} = reactify.module(mappable);

          const {useState, useEffect, useRef} = React;

          function App() {
              // State for current coordinates and line coordinates
              const [location, setLocation] = useState(LOCATION);
              const [coordinates, setCoordinates] = useState<LngLat>();
              const [lineCoordinates, setLineCoordinates] = useState<LngLat[][]>([]);

              // References for marker and previous coordinates
              const prevCoordinatesRef = useRef<LngLat>(null);

              useEffect(() => {
                  fetchData();

                  // Set an interval to update the location periodically
                  const updateSource = setInterval(() => {
                      fetchData();
                  }, ANIMATION_DURATION);

                  // Function to fetch new location and satellite route
                  async function fetchData() {
                      const newCoordinates = await getLocation(); // Fetch new coordinates

                      // Fetch satellite route coordinates
                      const lines = await getSatelliteRoute();

                      if (!prevCoordinatesRef.current) {
                          setCoordinates(newCoordinates);
                          setLocation({center: newCoordinates});
                      } else {
                          // Animate marker if previous coordinates exist
                          animateMarker(prevCoordinatesRef.current, newCoordinates, (lngLat) => {
                              setLocation({center: lngLat});
                              setCoordinates(lngLat);
                          });
                      }

                      prevCoordinatesRef.current = newCoordinates;
                      setLineCoordinates(lines); // Update line coordinates state
                  }

                  // Cleanup function to clear the interval when the component unmounts
                  return () => clearInterval(updateSource);
              }, []); // Empty dependency array to run once on mount

              return (
                  <MMap location={location} behaviors={BEHAVIORS} showScaleInCopyrights={true} ref={(x) => (map = x)}>
                      <MMapDefaultSchemeLayer />
                      <MMapDefaultFeaturesLayer />
                      {coordinates && (
                          <MMapMarker disableRoundCoordinates coordinates={coordinates}>
                              <div className="marker-container">
                                  <img src={MARKER_IMAGE_PATH} alt="marker" />
                              </div>
                          </MMapMarker>
                      )}
                      {lineCoordinates && (
                          <MMapFeature
                              geometry={{type: 'MultiLineString', coordinates: lineCoordinates}}
                              style={LINE_STRING_STYLE}
                          />
                      )}
                  </MMap>
              );
          }

          // Render the App component inside a strict mode
          ReactDOM.render(
              <React.StrictMode>
                  <App />
              </React.StrictMode>,
              document.getElementById('app')
          );
      }
    </script>

    <!-- prettier-ignore -->
    <style> html, body, #app { width: 100%; height: 100%; margin: 0; padding: 0; font-family: Arial, Helvetica, sans-serif; } .toolbar { position: absolute; z-index: 1000; top: 0; left: 0; display: flex; align-items: center; padding: 16px; } .toolbar a { padding: 16px; }  </style>
    <link rel="stylesheet" href="../variables.css" />
  </head>
  <body>
    <div id="app"></div>
  </body>
</html>

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1" />
    <script crossorigin src="https://cdn.jsdelivr.net/npm/vue@3/dist/vue.global.js"></script>
    <script crossorigin src="https://cdn.jsdelivr.net/npm/@babel/standalone@7/babel.min.js"></script>
    <script crossorigin src="https://cdn.jsdelivr.net/npm/satellite.js@5.0.0/dist/satellite.min.js"></script>
    <!-- To make the map appear, you must add your apikey -->
    <script src="https://js.api.mappable.world/v3/?apikey=<YOUR_APIKEY>&lang=en_US" type="text/javascript"></script>

    <script
      data-plugins="transform-modules-umd"
      data-presets="typescript"
      type="text/babel"
      src="../variables.ts"
    ></script>
    <script
      data-plugins="transform-modules-umd"
      data-presets="typescript"
      type="text/babel"
      src="./common.ts"
    ></script>
    <script data-plugins="transform-modules-umd" data-presets=" typescript" type="text/babel">
      import {
        animateMarker,
        ANIMATION_DURATION,
        BEHAVIORS,
        getLocation,
        getSatelliteRoute,
        LOCATION,
        MARKER_IMAGE_PATH
      } from './common';
      import {LINE_STRING_STYLE} from '../variables';

      window.map = null;

      async function main() {
        // Import the Vuefy module for Mappable Maps integration
        const [mappableVue] = await Promise.all([mappable.import('@mappable-world/mappable-vuefy'), mappable.ready]);

        // Bind Vuefy to the Vue instance
        const vuefy = mappableVue.vuefy.bindTo(Vue);

        // Destructure required components from the Vuefy module
        const {MMap, MMapDefaultSchemeLayer, MMapDefaultFeaturesLayer, MMapMarker, MMapFeature} =
          vuefy.module(mappable);

        // Create the Vue application
        const app = Vue.createApp({
          components: {
            MMap,
            MMapDefaultSchemeLayer,
            MMapDefaultFeaturesLayer,
            MMapMarker,
            MMapFeature
          },

          setup() {
            // Reference to the map instance
            const refMap = (ref) => {
              window.map = ref?.entity;
            };

            // Reactive variables for location and coordinates
            const location = Vue.ref(LOCATION);
            const coordinates = Vue.ref(null);
            const lineCoordinates = Vue.ref([]);
            const prevCoordinates = Vue.ref(null);
            const updateSource = Vue.ref(null);

            // Lifecycle hook to fetch new coordinates on mount
            Vue.onMounted(() => {
              // Function to fetch new coordinates and update the map
              // Initial data fetch
              fetchData();

              // Set an interval to update the location periodically
              updateSource.value = setInterval(() => {
                fetchData();
              }, ANIMATION_DURATION);

              // Function to fetch new location and satellite route
              async function fetchData() {
                // Fetch new coordinates from the API
                const newCoordinates = await getLocation();

                // Fetch satellite route coordinates
                lineCoordinates.value = await getSatelliteRoute();

                if (!prevCoordinates.value) {
                  // Update current marker coordinates
                  coordinates.value = newCoordinates;
                  // Update the map location
                  location.value = {center: newCoordinates};
                } else {
                  // Animate marker if previous coordinates exist
                  animateMarker(prevCoordinates.value, newCoordinates, (lngLat) => {
                    location.value = {center: lngLat};
                    coordinates.value = lngLat;
                  });
                }

                // Store marker coordinates as previous
                prevCoordinates.value = newCoordinates;
              }
            });

            Vue.onBeforeUnmount(() => {
              clearInterval(updateSource.value);
            });

            // Return reactive variables to the template
            return {
              location,
              coordinates,
              lineCoordinates,
              refMap,
              MARKER_IMAGE_PATH,
              LINE_STRING_STYLE,
              BEHAVIORS
            };
          },

          // Template for the Vue component
          template: `
            <MMap :location="location" :behaviors="BEHAVIORS" :showScaleInCopyrights="true" :ref="refMap">
              <MMapDefaultSchemeLayer />
              <MMapDefaultFeaturesLayer />
              <MMapMarker v-if="coordinates" disableRoundCoordinates :coordinates="coordinates">
                <div class="marker-container">
                  <img :src="MARKER_IMAGE_PATH" alt="marker" />
                </div>
              </MMapMarker>
              <MMapFeature
                v-if="lineCoordinates"
                :geometry="{ type: 'MultiLineString', coordinates: lineCoordinates }"
                :style="LINE_STRING_STYLE"
              />
            </MMap>`
        });

        // Mount the Vue application to the DOM
        app.mount('#app');
      }

      // Execute the main function to start the application
      main();
    </script>

    <!-- prettier-ignore -->
    <style> html, body, #app { width: 100%; height: 100%; margin: 0; padding: 0; font-family: Arial, Helvetica, sans-serif; } .toolbar { position: absolute; z-index: 1000; top: 0; left: 0; display: flex; align-items: center; padding: 16px; } .toolbar a { padding: 16px; }  </style>
    <link rel="stylesheet" href="../variables.css" />
  </head>
  <body>
    <div id="app"></div>
  </body>
</html>

import type {LngLat, MMapLocationRequest, BehaviorType} from '@mappable-world/mappable-types';

export const LOCATION: MMapLocationRequest = {
  center: [0, 0], // starting position [lng, lat]
  zoom: 3 // starting zoom
};
export const BEHAVIORS: BehaviorType[] = ['scrollZoom'];

// Constants for marker image path, animation duration, and line string style
export const MARKER_IMAGE_PATH = '../icon-iss.svg';
export const ANIMATION_DURATION = 5000; // Duration for animation in milliseconds

// Function to get the satellite route
export async function getSatelliteRoute(): Promise<LngLat[][]> {
  try {
    // Fetch satellite TLE data
    const response = await fetch('https://api.wheretheiss.at/v1/satellites/25544/tles', {method: 'GET'});
    const responseJSON = await response.json();

    // Create current UTC date
    const now = new Date(
      Date.UTC(
        new Date().getUTCFullYear(),
        new Date().getUTCMonth(),
        new Date().getUTCDate(),
        new Date().getUTCHours(),
        new Date().getUTCMinutes(),
        new Date().getUTCSeconds()
      )
    );

    // Convert TLE to satellite record
    const satrec = satellite.twoline2satrec(responseJSON.line1, responseJSON.line2);
    const positions: LngLat[] = []; // Array to hold satellite positions

    // Define time duration and interval for position calculations
    const durationMilliseconds = 50 * 60 * 1000; // 45 minutes in milliseconds
    const intervalMilliseconds = 10000; // 10 seconds interval for each position

    // Calculate satellite positions over the specified duration
    for (let time = -durationMilliseconds; time <= durationMilliseconds; time += intervalMilliseconds) {
      const positionTime = new Date(now.getTime() + time);
      const positionAndVelocity = satellite.propagate(satrec, positionTime);
      const positionEci = positionAndVelocity.position;

      // Check for valid ECI position
      if (!positionEci) {
        console.error('Invalid position ECI:', positionAndVelocity);
        continue;
      }

      // Convert ECI position to geodetic coordinates
      const gmst = satellite.gstime(positionTime);
      const positionGd = satellite.eciToGeodetic(positionEci, gmst);
      positions.push([positionGd.longitude * (180 / Math.PI), positionGd.latitude * (180 / Math.PI)]);
    }

    // Split the array of positions into two parts
    const {firstPart, secondPart} = splitArray(positions);
    return [firstPart, secondPart];
  } catch (err) {
    console.error('Failed to fetch satellite route:', err);
    throw new Error('Failed to fetch satellite route');
  }
}

// Helper function to split an array into two parts based on a condition
const splitArray = (arr) => {
  let firstPart = [];
  let secondPart = [];
  let foundSplit = false;

  for (let i = 0; i < arr.length; i++) {
    // Determine where to split the array based on longitude values
    if (!foundSplit && i !== 0 && +arr[i][0] < +arr[i - 1][0]) {
      foundSplit = true;
    }
    // Push to the appropriate part based on the split condition
    if (!foundSplit) {
      firstPart.push(arr[i]);
    } else {
      secondPart.push(arr[i]);
    }
  }
  return {firstPart, secondPart};
};

// Function to animate a marker's movement from one location to another
export const animateMarker = (from: LngLat, to: LngLat, callback: (lngLat: LngLat) => void) => {
  const duration = ANIMATION_DURATION; // Duration of the animation
  const startTime = performance.now(); // Start time of the animation

  const animateStep = (currentTime) => {
    const elapsed = currentTime - startTime; // Calculate elapsed time
    const t = Math.min(elapsed / duration, 1); // Calculate interpolation factor

    // Interpolate longitude and latitude
    const interpolatedLongitude = from[0] + (to[0] - from[0]) * t;
    const interpolatedLatitude = from[1] + (to[1] - from[1]) * t;
    callback([interpolatedLongitude, interpolatedLatitude]);

    // Continue animation if not complete
    if (t < 1) {
      requestAnimationFrame(animateStep);
    }
  };

  requestAnimationFrame(animateStep); // Start the animation
};

// Function to get the current location of the satellite
export async function getLocation(): Promise<LngLat> {
  try {
    // Fetch satellite location data
    const response = await fetch('https://api.wheretheiss.at/v1/satellites/25544', {method: 'GET'});
    const {longitude, latitude} = await response.json();
    return [longitude, latitude]; // Return coordinates as LngLat
  } catch (err) {
    console.error('Failed to fetch satellite location:', err);
    throw new Error('Failed to fetch satellite location');
  }
}

.marker-container {
  position: absolute;

  display: flex;
  justify-content: center;
  align-items: center;

  box-sizing: border-box;
  min-width: 24px;
  min-height: 24px;

  border: 3px solid #fff;
  border-radius: 8px;
  background-color: #313133;
  box-shadow: 0 0 2px 0 #5f698314;

  transform: translate(-50%, -50%);
}

import type {DrawingStyle} from '@mappable-world/mappable-types';

export const LINE_STRING_STYLE: DrawingStyle = {
  simplificationRate: 0,
  stroke: [
    {color: '#2E4CE5', width: 3, dash: [8, 14]}, // Primary stroke style
    {color: '#FFFFFF', width: 7, opacity: 0.3} // Secondary stroke style
  ]
};