谷歌地圖上的中心標記 - Yii egmap

Question

我希望在顯示幾個標記時能正確地放大和縮小地圖。

//import 
    Yii::import('ext.egmap.*'); 

    //basic setup 
    $gMap = new EGMap(); 
    $gMap->setWidth(953); 
    $gMap->setHeight(552); 
    $gMap->zoom = 16; 
    $gMap->setCenter(38.257818,-7.992712); 

    //setup info windows: 
    $info_window_a = new EGMapInfoWindow('<div>I am a marker with custom image!</div>'); 


    //setup marker icon 
    $icon = new EGMapMarkerImage("/images/experiences/iconLocal.png"); 
    $icon->setSize(30, 30); 
    $icon->setAnchor(16, 16.5); 
    $icon->setOrigin(0, 0); 

    //setup markers 
    $markerA = new EGMapMarker(38.257818, -7.992712, array('title' => 'Marker A - With Custom Image','icon'=>$icon)); 
    $markerA->addHtmlInfoWindow($info_window_a); 
    $gMap->addMarker($markerA); 

    $markerB = new EGMapMarker(38.257818, -7.99333, array('title' => 'Marker B - With Custom Image','icon'=>$icon)); 
    $markerB->addHtmlInfoWindow($info_window_a); 
    $gMap->addMarker($markerB); 

    //place them together - but I see no use for them at this time. 
    $markers = array($markerA, $markerB); 

    //try to map center those markers: 
    $gMap->centerOnMarkers(); 

    //render 
    $gMap->renderMap(); 

結果：我沒有得到中心元素。

我我做錯了什麼？

Answer 1

您應該使用centerAndZoomOnMarkers()函數。

第一個參數$margin可讓您定義圍繞最小邊界的縮放因子。

$gMap->centerAndZoomOnMarkers(0.5);