Vamos dar continuidade a nossa primeira aplicação web?
Neste post vamos dar continuidade a nossa primeira aplicação web com mapa. Desta vez vamos aprender a como traçar direções de um ponto a outro. Este é o último post da série Minha Primeira Aplicação Web com Mapa, se você não conseguiu ler os anteriores, você pode consultá-los nos links abaixo:
Minha Primeira Aplicação Web: Traçando direções
Antes de começar, você precisará ter um usuário do ArcGIS for Developer, para criá-lo você poderá seguir os passos apresentados neste link: Passo a passo do ArcGIS for Developers.
A primeira coisa que você precisará é ter um editor de texto e criar um arquivo com o nome MyAppArcGISforDevelopers.html. Esta será a sua página HTML. Ou se você preferir realizar de forma mais dinâmica, sugiro que você acesse o CodePen e crie um novo Pen para editar o HTML.
Depois que seu arquivo estiver criado ou um novo Pen foi aberto, você poderá adicionar o seguinte código:
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Dentro da <head>, você poderá adicionar as referências para o CSS e para a API Javascript do ArcGIS.
<link rel="stylesheet" href="https://js.arcgis.com/4.13/esri/themes/light/main.css"> <script type="litespeed/javascript" data-src="https://js.arcgis.com/4.13/"></script>
Ainda dentro da <head>, adicione a tag <script> e a expressão require para carregar os módulos de mapa (Map), do visualizador de mapa (MapView) e o buscador (Search).
Instancie um novo mapa (Map) e defina a propriedade de mapa base como streets-navigation-vector.
Instancie um visualizador de mapa (MapView) e defina as propriedades container, mapa, centro e zoom. E, também, instancie o buscador (Search) e a classe de Direções (Directions), conforme o código abaixo:
<script type="litespeed/javascript">require(["esri/Map","esri/views/MapView","esri/widgets/Search","esri/widgets/Directions"],function(Map,MapView,Search,Directions){var map=new Map({basemap:"streets-navigation-vector"});var view=new MapView({container:"viewDiv",map:map,center:[-43.2105,-22.9519],zoom:13});var search=new Search({view:view});view.ui.add(search,"top-right");var directions=new Directions({view:view});view.ui.add(directions,"top-right")})</script>
Parabéns!
Você acabou de incluir uma nova funcionalidade na sua aplicação. Agora você pode traçar direções de um ponto a outro.
Ao visualizar a sua aplicação, para utilizar o serviço de rota, será solicitado o usuário e senha, criados anteriormente, conforme descrito no início deste post.
Caso tenha alguma dúvida, confira o código na íntegra:
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Veja também:
Criando minha primeira aplicação web com mapa – parte 1
Criando minha primeira aplicação web com mapa – parte 2
Motivos que farão você migrar seu desenvolvimento para o ArcGIS for Developers
ArcGIS API for Python: os conceitos principais – parte 1
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