カスタムボタンでGoogleマップ位置を制御する

Question

モバイルアプリをスワイプするか、ブラウザでドラッグするのではなく、カスタムコントローラを使ってGoogleマップ上の位置を変更できますか？ スワイプ/ドラッグと同じようにスムーズに変化するポジションを探していますが、ジャンプやシフトはありません。問題の例から変更

Answer 1

一つのオプション、：Google Maps Javascript positioning control maps：

function initialize() { 
 
    var mapDiv = document.getElementById('map_canvas'); 
 
    var map = new google.maps.Map(mapDiv, { 
 
    center: new google.maps.LatLng(39.300299, 34.471664), 
 
    zoom: 6, 
 
    disableDefaultUI: true, 
 
    }); 
 
    var PanControl = new geocodezip.web.PanControl(map); 
 
    PanControl.index = 1; 
 
    // map.controls[google.maps.ControlPosition.TOP_LEFT].push(PanControl); 
 
    document.getElementById('panctrl').appendChild(PanControl); 
 

 
} 
 
google.maps.event.addDomListener(window, 'load', initialize); 
 

 
/** 
 
* @param {string} tagName 
 
* @param {Object.<string, string>} properties 
 
* @returns {Node} 
 
*/ 
 
function CreateElement(tagName, properties) { 
 
    var elem = document.createElement(tagName); 
 
    for (var prop in properties) { 
 
    if (prop == "style") 
 
     elem.style.cssText = properties[prop]; 
 
    else if (prop == "class") 
 
     elem.className = properties[prop]; 
 
    else 
 
     elem.setAttribute(prop, properties[prop]); 
 
    } 
 
    return elem; 
 
} 
 

 
/** 
 
* @constructor 
 
* @param {google.maps.Map} map 
 
*/ 
 
function PanControl(map) { 
 
    this.map = map; 
 
    this.originalCenter = map.getCenter(); 
 

 
    var t = this; 
 
    var panContainer = CreateElement("div", { 
 
    'style': "position: relative; padding: 5px;" 
 
    }); 
 

 
    //Pan Controls 
 
    var PanContainer = CreateElement("div", { 
 
    'style': "position: relative; left: 2px; top: 5px; width: 56px; height: 56px; padding: 5px; overflow: hidden;" 
 
    }); 
 
    panContainer.appendChild(PanContainer); 
 
    var div = CreateElement("div", { 
 
    'style': "width: 56px; height: 56px; overflow: hidden;" 
 
    }); 
 
    div.appendChild(CreateElement("img", { 
 
    'alt': ' ', 
 
    'src': 'http://maps.gstatic.com/intl/en_ALL/mapfiles/mapcontrols3d5.png', 
 
    'style': "position: absolute; left: 0px; top: -1px; -moz-user-select: none; border: 0px none; padding: 0px; margin: 0px; width: 59px; height: 492px;" 
 
    })); 
 
    PanContainer.appendChild(div); 
 

 
    div = CreateElement("div", { 
 
    'style': "position: absolute; left: 0px; top: 19px; width: 18.6667px; height: 18.6667px; cursor: pointer;", 
 
    'title': 'Pan left' 
 
    }); 
 
    google.maps.event.addDomListener(div, "click", function() { 
 
    t.pan(PanDirection.LEFT); 
 
    }); 
 
    PanContainer.appendChild(div); 
 
    div = CreateElement("div", { 
 
    'style': "position: absolute; left: 37px; top: 19px; width: 18.6667px; height: 18.6667px; cursor: pointer;", 
 
    'title': 'Pan right' 
 
    }); 
 
    google.maps.event.addDomListener(div, "click", function() { 
 
    t.pan(PanDirection.RIGHT); 
 
    }); 
 
    PanContainer.appendChild(div); 
 
    div = CreateElement("div", { 
 
    'style': "position: absolute; left: 19px; top: 0px; width: 18.6667px; height: 18.6667px; cursor: pointer;", 
 
    'title': 'Pan up' 
 
    }); 
 
    google.maps.event.addDomListener(div, "click", function() { 
 
    t.pan(PanDirection.UP); 
 
    }); 
 
    PanContainer.appendChild(div); 
 
    div = CreateElement("div", { 
 
    'style': "position: absolute; left: 19px; top: 37px; width: 18.6667px; height: 18.6667px; cursor: pointer;", 
 
    'title': 'Pan down' 
 
    }); 
 
    google.maps.event.addDomListener(div, "click", function() { 
 
    t.pan(PanDirection.DOWN); 
 
    }); 
 
    PanContainer.appendChild(div); 
 
    div = CreateElement("div", { 
 
    'style': "position: absolute; left: 19px; top: 19px; width: 18.6667px; height: 18.6667px; cursor: pointer;", 
 
    'title': 'Reset center' 
 
    }); 
 
    google.maps.event.addDomListener(div, "click", function() { 
 
    t.map.setCenter(t.originalCenter); 
 
    }); 
 
    PanContainer.appendChild(div); 
 

 
    return panContainer; 
 
} 
 

 
/** @param {PanDirection} direction */ 
 
PanControl.prototype.pan = function(direction) { 
 
    var panDistance = 50; 
 
    if (direction == PanDirection.UP || direction == PanDirection.DOWN) { 
 
    panDistance = Math.round(this.map.getDiv().offsetHeight/2); 
 
    this.map.panBy(0, direction == PanDirection.DOWN ? panDistance : -1 * panDistance); 
 
    } else { 
 
    panDistance = Math.round(this.map.getDiv().offsetWidth/2); 
 
    this.map.panBy(direction == PanDirection.RIGHT ? panDistance : -1 * panDistance, 0); 
 
    } 
 
} 
 

 
/** @enum */ 
 
var PanDirection = { 
 
    LEFT: 0, 
 
    RIGHT: 1, 
 
    UP: 3, 
 
    DOWN: 4 
 
} 
 

 
window["geocodezip"] = window["geocodezip"] || {}; 
 
window["geocodezip"]["web"] = window["geocodezip"]["web"] || {}; 
 
window["geocodezip"]["web"]["PanControl"] = PanControl;

html, 
 
body { 
 
    height: 100%; 
 
    width: 100%; 
 
    margin: 0px; 
 
    padding: 0px 
 
} 
 
#map_canvas { 
 
    width: 80%; 
 
    height: 100%; 
 
    margin: 0px; 
 
    padding: 0px 
 
}

<script src="https://maps.googleapis.com/maps/api/js"></script> 
 
<div id="map_canvas" style="float: right; border: 2px solid #3872ac;"></div> 
 
<div id="panctrl" style="float: right;"></div>