三維線資料結構

三維線資料結構

線資料是一串點資料的陣列，由兩個以上的點位資訊依照順序排列連接而成的幾何圖形。就如同數學幾何的定義，線資料並沒有寬度，要在地圖上呈現和設定線圖徵的寬度(粗細)，請參照圖層套疊大項下圖形與圖片類別中的設定線圖徵頁籤。利用線資料結構可以計算線段長度、判斷是否有自相交叉。

function drawline() {

var path = [];  //設定path節點順序

path[0] = new TGOS.TEPoint(121.51861, 25.04193);

path[1] = new TGOS.TEPoint(121.51971, 25.04568);

path[2] = new TGOS.TEPoint(121.52232, 25.05112);

path[3] = new TGOS.TEPoint(121.52269, 25.05261);

path[4] = new TGOS.TEPoint(121.52309, 25.06109);

path[5] = new TGOS.TEPoint(121.52270, 25.06279);

path[6] = new TGOS.TEPoint(121.52239, 25.06425);

path[7] = new TGOS.TEPoint(121.52245, 25.06660);

path[8] = new TGOS.TEPoint(121.52297, 25.06840);

path[9] = new TGOS.TEPoint(121.53262, 25.06819);

var lineStr = new TGOS.TELineString(path);  //設定線資料的path

var testline = new TGOS.TELine(tg3dEarth,lineStr,{

strokeColor: '#00FF00',

strokeWeight: 5,

strokeOpacity: 0.7

});

}