在靜態地圖中使用來自Google Directions API的編碼折線的錯誤路徑

Question

我試圖從Google的Direction API使用編碼折線並將其顯示在Google靜態地圖圖像中。當我在靜態貼圖中使用編碼折線時，路徑顯示不正確 - 它從正確的位置開始，並具有正確的常規路徑，但偏離預期的結果。

作爲一個例子，我已經提出了從伯爾尼到蘇黎世機場的rail方向的請求。該API返回以下編碼折線：

}sp}Gmrkl@m@wIiAaB_BaA}IcCmLoFqG_DuFkAyN[mEiBqN}MqFsLqUoxAyG{`@qGqJwDkBeJMod@lScMzF{OfCwH[oGwAwI{EyOiTcS{e@mKkd@iGsi@wKem@iKg[aPg[_N_RiE{EoUaR{f@}X}d@sWo[mN}]_KqYcDePyCcQaGeUuM{PoO_SsWcLeTiSsi@{Ka[yRgb@sN{S}RaS_XkRiX{OiO{GgMiEoc@aDwq@{Eig@qHyhAeQ{n@_Nqj@uOqp@qTcZmNyZkUcRkSsIiL{Qq[qHuPuLk]wIe]mLqd@sLm\\kf@y`Ayk@eeAu`AazA}JgR{Qeb@yHsX}Gg\\uDyViEwn@wHup@w_@_sCyT_~AsVuwAkGaT}Qud@cZch@y{@{gB_OeTaPkQkf@ae@kQcQ}MwPoQu[{GgPkJiZiEoRaIgh@_Gm[oQyj@kPk\\iPkTi[cYuOyIqQsGcYuFm]gCug@g@cU{G}IaGeHcH}IsMyFaMsKi]eLw`@qKab@kIwe@eDkLyKwRiGsFoOuGcGkAuQm@uH_@{W}DmOkFcXiQ{WgTkLgL}I_KwJgGcHoBeGMaIjBuDhA_GRab@aEoKuCqFaEoIsQaG}NkDuL_@qR~BmNdR{b@zEaW~Cee@vEsv@vA}JfEeNvH{T|AcKXyN{AgQeDeNeHqWwYseAcX_eA}IwSqGiHsHeE{g@uQeJqFeF{H_EuLyWg|@wX{_AqIkc@_[klB_Q{iAgRegCkTsqCmK{sAgJgx@qAeZPeNtAsOpGoVhRe[|E}LlJob@`Mwj@vFoWvLsk@bBcPaAmX_ByRcJmgAsCa]yEaTuFqJsG{Foa@}P}JoIsJmQuKoRgFgLgCuJaTghAwI}`@cJsVgIsMgZ{XkH{KsGqRcD_XE_ZXwn@}`AylKyBeWEsLrAiTfB}LzS{w@|Mcj@fTez@tOmi@lLmb@dGkOhO{\\rE_FtJgPv[eh@~EeG`HoK|LmH~SuJjGqEbHuN|Eic@lGsu@bAyQYmP}B{o@iDqaAuAus@zCcYnEkTtMmu@|Jak@fUerAzC_SLyNpD_\\~DuXbJq`@zDySbDqJrM{o@bCcOjG}WnAsFv@kEdAyFeAxFw@jEc@`Bo@~BsCbNyBdLsAzHOzOaAlKaDhGiEzBoFOiDgCgD{HiEoPcG_HiVaLiF_CwIwFgFaBiOkFoQgIe[iNsJyF}DoFuGeOyHgXmGeHcLmJwZwXkb@k`@yMaLkHiDaKeB_Ly@}CVcEtAaE|CQJiMdHyJxCgWv@cSyDmIaIuBuE 

繪製使用谷歌地圖API的結果在正確的路徑此編碼折線：

function initialize() { 
 

 
    var map = new google.maps.Map(document.getElementById('map-canvas'), { 
 
     center: { 
 
      lat: 47.23, 
 
      lng: 8.00 
 
     }, 
 
     zoom: 09 
 
    }); 
 

 
    var encoded_data = '}sp}Gmrkl@m@wIiAaB_BaA}IcCmLoFqG_DuFkAyN[mEiBqN}MqFsLqUoxAyG{`@qGqJwDkBeJMod@lScMzFcFvAwHn@wH[oGwAwI{EwFqGaHwKcS{e@mKkd@iGsi@wKem@iKg[aPg[_N_RiE{EoUaR{f@}X}d@sWo[mN}]_KqYcDePyCcQaGeUuM{PoO_SsWcLeTiSsi@{Ka[yRgb@sN{S}RaS_XkRiX{OiO{GgMiEoc@aDwq@{Eig@qHyhAeQ{n@_Nqj@uOqp@qTcZmNyZkUcRkSsIiL{Qq[qHuPuLk]wIe]mLqd@sLm\\kf@y`AiRm^oXwe@u`AazA}JgR{Qeb@yHsX}Gg\\uDyViEwn@wHup@w_@_sCyT_~AaKgo@qJmg@kGaT}Qud@cZch@y{@{gB_OeTaPkQkf@ae@kQcQ}MwPoQu[{GgPkJiZiEoRaIgh@_Gm[oQyj@kPk\\iPkTi[cYuOyIqQsGcYuFm]gCug@g@cU{G}IaGeHcH}IsMyFaMsKi]eLw`@qKab@kIwe@eDkLyKwRiGsFoOuGcGkAuQm@uH_@{W}DmOkFcJ}E_MkJ{WgTkLgL}I_KwJgGcHoBeGMaIjBuDhA_GRab@aEoKuCqFaEoIsQaG}NkDuL_@qR~BmNdR{b@zEaW~Cee@vEsv@vA}JfEeNpG_Q|A_HfAwOq@qQ{DeRgSou@eb@i|AyJc^aKcOeHyEm_@aNeOsFkDiCmEaGiIiV}e@__B}Kkc@{Q{fAg\\wpBkLqrAeWuiDyUuwCqGak@aA_SFeNjCwWhI_W`MaRjFgLbVueAdHa[fP}w@fAqT_BoVoHi}@{Hq{@yF}QyFaImH_FaQqGmQcJqH}IuWag@yFkQ{FyZcVcmAeJ_W{LcRqOaNgK{KeI{PeFoW}@eTp@qp@e@oRqHkr@gx@{|IwA_St@iSbAgNnGsXhRks@pNwk@bQsp@tVu|@zF}PhN}\\rDoH~BaCvDqEn]el@fP_VrDiFbDaCdXoMbIgErCcDpCaFdCqIpFil@vFsq@ViQ}@qS{Bop@uCkaA{@o[\\yV`N{t@~W{zAdVowAZeNvA_MbEmTxHeZb@}IpCwQbIe`@jMgp@tC_PvFkT~CgMdAaGeA`Gq@xDkAhEaBdHsBvIcE`SG|OsAlKaDlF{ErBgFg@}CoCaDcI{EcQ}F{FcHaDiNiGwGoDwGgEgOkEca@mQmVaLyFgEcIiOaG_QiDuLsBuCuJkIgWsT_m@uj@iPgNqSaEoKc@cBRgFpB_DdCqMjHyJxCsJv@aW_AcNsGuF}J'; 
 

 
    var decode = google.maps.geometry.encoding.decodePath(encoded_data); 
 

 
    var line = new google.maps.Polyline({ 
 
     path: decode, 
 
     strokeColor: '#red', 
 
     strokeOpacity: 1.0, 
 
     strokeWeight: 4, 
 
     zIndex: 3 
 
    }); 
 

 
    line.setMap(map); 
 
} 
 

 
initialize();

#map-canvas { 
 
    height: 400px; 
 
}

<script src="https://maps.googleapis.com/maps/api/js?libraries=geometry&sensor=false"></script> 
 
<div id="map-canvas"></div>

然而，當在靜態地圖中使用相同的編碼多段線時，路徑從伯爾尼開始並結束f在蘇黎世北部。這裏的靜態URL：

https://maps.googleapis.com/maps/api/staticmap?size=512x512&scale=2&maptype=terrain&style=feature:all&path=weight:3%7Ccolor:0xff0000ff%7Cgeodesic:true%7Cenc：} SP} Gmrkl @米@ wIiAaB_BaA} IcCmLoFqG_DuFkAyN [mEiBqN} MqFsLqUoxAyG {@qGqJwDkBeJMod@lScMzFcFvAwHn@wH[oGwAwI{EwFqGaHwKcS{e@mKkd@iGsi@wKem@iKg[aPg[_N_RiE{EoUaR{f@}X}d@sWo[mN}]_KqYcDePyCcQaGeUuM{PoO_SsWcLeTiSsi@{Ka[yRgb@sN{S}RaS_XkRiX{OiO{GgMiEoc@aDwq@{Eig@qHyhAeQ{n@_Nqj@uOqp@qTcZmNyZkUcRkSsIiL{Qq[qHuPuLk]wIe]mLqd@sLm\\kf@y AIRM^oXwe @üAazA}JgR{Qeb@yHsX}Gg\\uDyViEwn@wHup@w_@_sCyT_~AaKgo@qJmg@kGaT}Qud@cZch@y{@{gB_OeTaPkQkf@ae@kQcQ}MwPoQu[{GgPkJiZiEoRaIgh@_Gm[oQyj@kPk\\iPkTi[cYuOyIqQsGcYuFm]gCug@g@cU{G}IaGeHcH}IsMyFaMsKi]eLw @ qKab @ kIwe @ eDkLyKwRiGsFoOuGcGkAuQm @ uH容_ @【W】DmOkFcJ} E_MkJ {WgTkLgL } I_KwJgGcHoBeGMaIjBuDhA_GRab @ aEoKuCqFaEoIsQaG} NkDuL_ @ QR〜BmNdR {b @ zEaW〜東歐@ vEsv @ vA型} JfEeNpG_Q | A_HfAwOq @ QQ {DeRgSou @ EB @ I | AyJc^aKcOeHyEm_ @ aNeOsFkDiCmEaGiIiV}ë@__ b} KKC @ {Q {FAG \ wpBkLqrAeWuiDyUuwCqGak @ aA_SFeNjCwWhI_W MaRjFgLbVueAdHa[fP}w@fAqT_BoVoHi}@{Hq{@yF}QyFaImH_FaQqGmQcJqH}IuWag@yFkQ{FyZcVcmAeJ_W{LcRqOaNgK{KeI{PeFoW}@eTp@qp@e@oRqHkr@gx@{|IwA_St@iSbAgNnGsXhRks@pNwk@bQsp@tVu|@zF}PhN}\\rDoH~BaCvDqEn]el@fP_VrDiFbDaCdXoMbIgErCcDpCaFdCqIpFil@vFsq@ViQ}@qS{Bop@uCkaA{@o[\\yV N {噸@〜W {zAdVowAZeNvA_MbEmTxHeZb @} IpCwQbIe @jMgp@tC_PvFkT~CgMdAaGeA的Gq @ xDkAhEaBdHsBvIcE`SG | OsAlKaDlF {ErBgFg @} CoCaDcI {ECQ} F到{FcHaDiNiGwGoDwGgEgOkEca @ mQmVaLyFgEcIiOaG_QiDuLsBuCuJkIgWsT_m @ UJ @ iPgNqSaEoKc @ cBRgFpB_DdCqMjHyJxCsJv @ aW_AcNsGuF}Ĵ

併產生圖像：

我曾嘗試geodesic PARAM設置爲true和false但似乎沒有什麼區別。

可以在靜態地圖中使用來自Google Directions的編碼多段線嗎？如果是這樣，需要哪些參數才能正確顯示它們？

Answer 1

您在示例中使用的編碼折線包含\\符號，我瞭解Google Maps JavaScript API可以跳過\反斜槓符號。在將編碼折線傳遞給靜態地圖API之前，您應該用簡單的反斜槓替換轉義的反斜線。

您的要求是：

<img src="https://maps.googleapis.com/maps/api/staticmap?size=512x512&scale=2&maptype=terrain&style=feature:all&path=weight:3%7Ccolor:0xff0000ff%7Cgeodesic:true%7Cenc:}sp}Gmrkl@m@wIiAaB_BaA}IcCmLoFqG_DuFkAyN[mEiBqN}MqFsLqUoxAyG{`@qGqJwDkBeJMod@lScMzFcFvAwHn@wH[oGwAwI{EwFqGaHwKcS{e@mKkd@iGsi@wKem@iKg[aPg[_N_RiE{EoUaR{f@}X}d@sWo[mN}]_KqYcDePyCcQaGeUuM{PoO_SsWcLeTiSsi@{Ka[yRgb@sN{S}RaS_XkRiX{OiO{GgMiEoc@aDwq@{Eig@qHyhAeQ{n@_Nqj@uOqp@qTcZmNyZkUcRkSsIiL{Qq[qHuPuLk]wIe]mLqd@sLm\kf@y`AiRm^oXwe@u`AazA}JgR{Qeb@yHsX}Gg\uDyViEwn@wHup@w_@_sCyT_~AaKgo@qJmg@kGaT}Qud@cZch@y{@{gB_OeTaPkQkf@ae@kQcQ}MwPoQu[{GgPkJiZiEoRaIgh@_Gm[oQyj@kPk\iPkTi[cYuOyIqQsGcYuFm]gCug@g@cU{G}IaGeHcH}IsMyFaMsKi]eLw`@qKab@kIwe@eDkLyKwRiGsFoOuGcGkAuQm@uH_@{W}DmOkFcJ}E_MkJ{WgTkLgL}I_KwJgGcHoBeGMaIjBuDhA_GRab@aEoKuCqFaEoIsQaG}NkDuL_@qR~BmNdR{b@zEaW~Cee@vEsv@vA}JfEeNpG_Q|A_HfAwOq@qQ{DeRgSou@eb@i|AyJc^aKcOeHyEm_@aNeOsFkDiCmEaGiIiV}e@__B}Kkc@{Q{fAg\wpBkLqrAeWuiDyUuwCqGak@aA_SFeNjCwWhI_W`MaRjFgLbVueAdHa[fP}w@fAqT_BoVoHi}@{Hq{@yF}QyFaImH_FaQqGmQcJqH}IuWag@yFkQ{FyZcVcmAeJ_W{LcRqOaNgK{KeI{PeFoW}@eTp@qp@e@oRqHkr@gx@{|IwA_St@iSbAgNnGsXhRks@pNwk@bQsp@tVu|@zF}PhN}\rDoH~BaCvDqEn]el@fP_VrDiFbDaCdXoMbIgErCcDpCaFdCqIpFil@vFsq@ViQ}@qS{Bop@uCkaA{@o[\yV`N{t@~W{zAdVowAZeNvA_MbEmTxHeZb@}IpCwQbIe`@jMgp@tC_PvFkT~CgMdAaGeA`Gq@xDkAhEaBdHsBvIcE`SG|OsAlKaDlF{ErBgFg@}CoCaDcI{EcQ}F{FcHaDiNiGwGoDwGgEgOkEca@mQmVaLyFgEcIiOaG_QiDuLsBuCuJkIgWsT_m@uj@iPgNqSaEoKc@cBRgFpB_DdCqMjHyJxCsJv@aW_AcNsGuF}J&key=AIzaSyDztlrk_3CnzGHo7CFvLFqE_2bUKEq1JEU" title="test" />