React

by benjrei

HTML

<div id="app"></div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

.done {
  color: rgba(0, 0, 0, 0.3);
  text-decoration: line-through;
}

input {
  margin-right: 5px;
}

React

class TodoApp extends React.Component {
  constructor(props) {
    super(props)
    this.state = {
    	wkt: 'LINESTRING Z (61.70980420096773 5.919403530383208 33.7, 61.70974267535814 5.919402727673847 33.7, 61.70965584350121 5.919388478519132 33.7, 61.709571309848435 5.919354502739293 33.7, 61.709438974047984 5.919268042531684 33.8, 61.7093211101757 5.919141106277405 33.8, 61.70920669343651 5.918984581262524 34.1, 61.70909598635624 5.918788867414984 34.3, 61.709001583084586 5.918620696819111 34.6, 61.7088954324985 5.918425538795389 34.6)'
    }
  }
  
  getGeometryType(word){
    switch(word) {
      case 'LINESTRING':
        return 'LineString';
      case 'POINT':
        return 'Point';
      default:
        return 'Point'
    }
  }
  
  wktToGeometry(wkt){
    const geoTypeFromWkt = wkt.replace(/ .*/,'');
    const type = this.getGeometryType(geoTypeFromWkt);

    const regEx = /\(.*?\)/g;
    const matches = wkt.match(regEx);
    let coordinates = [];
    matches.forEach((match)=>{
      match = match.replace(/[()]/g, '');
      const latLng = match.split(', ');
      if(latLng.length === 1){
        const arr = latLng[0].split(' ');
        return coordinates = [parseFloat(arr[1]).toFixed(6), parseFloat(arr[0]).toFixed(6)];
      }else if(latLng.length > 1){
        let latLngTemp = [];
        latLng.forEach((item)=>{
          const arr = item.split(' ');
          const element = [parseFloat(arr[1]).toFixed(6), parseFloat(arr[0]).toFixed(6)];
          latLngTemp.push(element)
        });
        coordinates.push(...latLngTemp)
      }
    });
    return {
      geometry: {
        type,
        coordinates
      }
    }
  };
  
  render() {
  console.log(this.wktToGeometry(this.state.wkt))
    return (
      <div>
        <h2>Todos:</h2>
      </div>
    )
  }
}

ReactDOM.render(<TodoApp />, document.querySelector("#app"))