Android 矢量室內(nèi)地圖開發(fā)實(shí)例

2019-12-12 04:28:06

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供稿：網(wǎng)友

矢量室內(nèi)地圖開發(fā)

因?yàn)楣卷?xiàng)目的需要，需要開發(fā)一套室內(nèi)地圖，并實(shí)現(xiàn)路線的規(guī)劃功能。因?yàn)橹皼]做過這方面的開發(fā)，相關(guān)的資料也比較少，所以只能一個(gè)人去摸索。剛開始我是使用一般的位圖去當(dāng)作的地圖，但是這個(gè)也讓我在后面吃了不少的苦頭。

我們知道地圖一般都會(huì)有縮放和拖拽等功能，正當(dāng)我把一樣利用位圖開發(fā)的地圖樣例時(shí)，我發(fā)現(xiàn)了不少的問題：
1、位圖縮放會(huì)失真；
2、圖片加載比較慢；
3、會(huì)導(dǎo)致客戶端內(nèi)存溢出
。。。

因?yàn)檫@些問題，我不得不放棄這種方法。要解決上面的問題只能使用矢量圖進(jìn)行開發(fā)了，于是我使用了HTML5進(jìn)行了矢量圖的開發(fā)，不僅解決了地圖縮放失真等問題，還同時(shí)適用于Android、iOS等，個(gè)人感覺效果還是相當(dāng)?shù)暮茫旅嫖襾斫榻B一下此種方法：

一、矢量地圖

因?yàn)槭鞘噶康貓D，那肯定得要有矢量圖的數(shù)據(jù)，那么可能就得去了解一下SVG，在這里我就不進(jìn)行介紹了，大家想學(xué)習(xí)的可以到網(wǎng)上搜索到很多相關(guān)的介紹，下面是地圖規(guī)定的一種格式：

/**  * Created by Administrator on 2015/11/5.  */ $.fn.vectorMap('addMap', 'us_aea_en',   {     "insets":     [       {"width": 220, "top": 440, "height": 146.9158157558812, "bbox": [{"y": -8441281.712315228, "x": -5263934.893342895}, {"y": -6227992.545028123, "x": -1949631.2950683108}], "left": 0},       {"width": 80, "top": 460, "height": 129.05725678001465, "bbox": [{"y": -4207380.690946597, "x": -5958501.652314129}, {"y": -3658201.4570359783, "x": -5618076.48127754}], "left": 245},       {"width": 900.0, "top": 0, "height": 550.2150229714246, "bbox": [{"y": -5490839.2352678, "x": -2029243.6460439637}, {"y": -2690044.485299302, "x": 2552083.9617675776}], "left": 0}     ],     "paths": {       "BH-中國建設(shè)銀行":{"path":"M567.065,977.503h56.717v120.192h-56.717V977.503z" , "name":"中國建設(shè)銀行"},       "BH-煌上煌":{"path":"M726.819,646.031h103.775v49.061H726.819V646.031z" , "name":"煌上煌"},       "BH-佰匯服務(wù)中心":{"path":"M746.113,458.64v46.49v3.559v46.49h80.856v-46.49v-3.559v-46.49H746.113z" , "name":"佰匯服務(wù)中心"},       "BH-01":{"path":"M746.113,365.117h84.245v96.714h-84.245V365.117z" , "name":"none"},       "BH-九疑米粉":{"path":"M598.614,599.228v46.803v2.258v46.802h131.719v-46.802v-2.258v-46.803H598.614z" , "name":"九疑米粉"},       "BH-02":{"path":"M598.614,552.426h131.719v49.061H598.614V552.426z" , "name":"none"},       "BH-中國福利彩票":{"path":"M598.614,505.624h79.599v49.061h-79.599V505.624z" , "name":"中國福利彩票"},       "BH-03":{"path":"M598.614,459.134h79.599v49.061h-79.599V459.134z" , "name":"none"},       "BH-04":{"path":"M598.614,402.612h79.599v59.22h-79.599V402.612z" , "name":"none"},       "BH-黑龍茶":{"path":"M621.338,977.503h56.716v120.192h-56.716V977.503z" , "name":"黑龍茶"},       "BH-蒸美味":{"path":"M675.61,841.39h72.875v256.305H675.61V841.39z" , "name":"蒸美味"},       "BH-集信飲食":{"path":"M828.102,921.006h60.87v176.689h-60.87V921.006z" , "name":"集信飲食"},       "BH-衣生衣世":{"path":"M828.102,841.39h60.87v81.99h-60.87V841.39z" , "name":"衣生衣世"},       "BH-佰匯公寓酒店":{"path":"M886.33,549.978h61.136v142.816H886.33V549.978z" , "name":"佰匯公寓酒店"},       "BH-水果美容體":{"path":"M889.937,505.13h74.252v47.925h-74.252V505.13z" , "name":"水果美容體"},       "BH-纖藝美甲":{"path":"M889.937,460.764h74.252v47.924h-74.252V460.764z" , "name":"纖藝美甲"},      },     "height":1200.333,//地圖的高     "projection":     {       "type": "aea",       "centralMeridian": -100.0     }, "width": 2384.0//地圖寬   });

二、設(shè)置地圖的縮放量

zoomMin:0.5,
zoomMax:8,

三、設(shè)置地圖背景顏色

backgroundColor:'#FFF',

四、設(shè)置店鋪文字的隨地圖縮放

onViewportChange: function(e, scale, transX, transY){      console.log('viewportChange', scale, transX, transY);      var old = parseInt($("text").css("fontSize"));      console.log("字體大小：" + old);      if( scale < 2.5 || scale == 2.5 ){       $("text").hide();       }      else if(scale > 2.5 && scale < 3.5 || scale == 3.5){       $("text").css("fontSize", 9);       $("text").show();      }      else if(scale > 3.5 && scale < 4.5 || scale == 4.5){       $("text").css("fontSize", 10);       $("text").show();      }      else if(scale > 4.5 && scale < 5.5 || scale == 5.5){       $("text").css("fontSize", 14);       $("text").show();      }      else{       $("text").css("fontSize", 16);       $("text").show();      }     },

五、點(diǎn)擊商鋪觸發(fā)的方法

onMarkerOver: function(event, index){      console.log('marker-over', index);     },     onMarkerOut: function(event, index){      console.log('marker-out', index);     },     onMarkerClick: function(event, index){      console.log('marker-click', index);     },     onMarkerSelected: function(event, index, isSelected, selectedMarkers){      console.log('marker-select', index, isSelected, selectedMarkers);      if (window.localStorage) {       window.localStorage.setItem(        'jvectormap-selected-markers-BH-1',        JSON.stringify(selectedMarkers)       );      }     },

六、效果圖