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google gis_系统数据交互图(Google)

發(fā)布時間:2023/12/19 综合教程 19 生活家
生活随笔 收集整理的這篇文章主要介紹了 google gis_系统数据交互图(Google) 小編覺得挺不錯的,現(xiàn)在分享給大家,幫大家做個參考.

轉(zhuǎn)載自http://www.cnblogs.com/yinxiangpei/articles/2574502.html,僅用作資料保存


在地理行業(yè)中,項目前期規(guī)劃都會涉及遙感圖像,更高級一點的是建立研究區(qū)的三維模型。在實踐中,筆者對這一些常見的疑問進行了總結(jié),包括如下幾個方面。

1、如何把ArcGIS的數(shù)據(jù)導入到Google Earth中;
2、如何把Google Earth中的數(shù)據(jù)導入ArcGIS中做進一步的操作;
3、如何在Google Earth中矢量化;
4、如何在Google Earth下載感興趣區(qū)的遙感圖像;
5、怎樣下載感興趣區(qū)的DEM;
6、怎樣建立三維模型。

本來打算寫一篇文章包含以上各個問題的解決,但實際過程中發(fā)現(xiàn)內(nèi)容涉及較廣,寫起來費事,讀起來難懂,還是分專題解決更容易,理解也簡單一些。

專題1,ArgGIS與Google Earth數(shù)據(jù)交互,解決問題1、2、3
專題2,在Google Earth下載感興趣區(qū)的遙感圖像,解決問題4
專題3,下載DEM進行三維建模,解決問題5、6

專題1——將ArcGIS的數(shù)據(jù)導入到Google Earth(一)

以北京為例,首先在ArcGIS中獲得shp格式的北京市輪廓(圖1),北京市的輪廓從國家基礎(chǔ)地理信息系統(tǒng)中獲取。再通過ArcToolbox進行格式轉(zhuǎn)換為Google Earth(GE)支持的Kml文件(圖2、3),加載到GE中(圖4、5)。

<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b66.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b66.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

圖1 北京市輪廓

<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

圖2 格式轉(zhuǎn)換工具

<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b70.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b70.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

圖3 Lay To KML對話框

<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b71.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b71.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

圖4 Google Earth打開保存的kmz文件

<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b66.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b66.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>
圖5 導入GE結(jié)果

以中國地質(zhì)大學(北京)為例,首先在GE中矢量化地大。

矢量化的方法,在GE中,新建多邊形,如下圖

<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

在GE中,當鼠標變成田字框時,按住鼠標左鍵不動拖動成研究區(qū)的形狀,完成后還可以用鼠標拖拽邊界修改。本文示意,邊界不精確。如下圖
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b71.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b71.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

保存為KML格式文件,如下圖
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b66.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b66.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”> <img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b67.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b67.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

接下來打開ArcMap進行操作,打開ArcToolbox
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b70.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b70.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

打開Kml格式轉(zhuǎn)換shp格式小工具,這個小工具是GIS高手制作,有需要留郵箱。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b62.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b62.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

這樣在Toolbox中就會多出一個選項,如下圖
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b71.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b71.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

打開,就能把在GE中生成的文件轉(zhuǎn)換到ArcMap中。下圖

<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b62.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b62.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

結(jié)果出來了,接下來的事就是根據(jù)需要進一步編輯了。注意請看圖右下角,有坐標。查看坐標系為WGS84如下下圖
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b71.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b71.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

總結(jié),文字較少,主要是看圖說話,通過二個專題前三個問題已經(jīng)搞定,回顧一下,包括1、GE中矢量化;2、GE與ArcGIS數(shù)據(jù)的相互轉(zhuǎn)換。

專題2——在Google Earth下載遙感圖像

很多人都有過利用Google Earth遙感圖進行二次創(chuàng)作的經(jīng)歷,他們大都采用直接截圖的方式獲取GE上面的遙感圖,但這樣做的缺點是谷歌的logo和一些輔助信息也被截了下來,這些水印似的信息會妨礙我們對遙感圖像的解讀。下面向大家介紹一種直接下載GE遙感圖的方法,即通過GetScreen軟件。這種方法的缺點是需要GE版本在5以下。我現(xiàn)在用的是“Google Earth(谷歌地球) Pro V4.2.0205.5730 Final 多國語言版”。

使用方法:

1、打開GE,找到要下載的區(qū)域。這里我找了一塊有山有水的地方,包括香山和頤和園。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

2、打開GetScreen(GS),這時選定區(qū)域直接就在GS中顯示出來了。

3、有兩種定位方法,在不知道坐標的情況下使用兩點定位比較方便,兩點定位是用鼠標右鍵選取兩點進行截圖區(qū)定位的方法。左上和右下。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

4、左擊圖片計算,自動完成計算顯示計算信息。

<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b72.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b72.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

5、點擊開始截圖,進行保存。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b70.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b70.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b72.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b72.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

看結(jié)果是不是比直接截圖要清爽許多。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b61.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

總結(jié),這種方法作出來的圖沒有坐標,在第三步二點定位時出現(xiàn)的那個白色的框會被以路徑的形式自動保存在GE中,白框四角坐標在GS中也可以看到,這就提供給我們對jpg文件進行配準的必要信息。<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b72.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b72.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

專題3——下載感興趣區(qū)的DEM及三維建模

說明:“Google Earth與ArcGIS數(shù)據(jù)交互”系列共分為四篇,首發(fā)地址為http://user.qzone.qq.com/283494970/。專題3是最后一篇。主要解決DEM的下載及用下載到的DEM進行三維建模。

網(wǎng)上免費的DEM有兩種,一是SRTM90;二是ASTER GDEM。

SRTM下載網(wǎng)站為:

http://srtm.datamirror.csdb.cn

ASTER GDEM下載網(wǎng)站:

http://www.gdem.aster.ersdac.or.jp/

本文以ASTER GDEM為例,關(guān)于二種數(shù)據(jù)的優(yōu)劣網(wǎng)上有很多的資料,在此便不在贅述。

ASTER GDEM的相關(guān)參數(shù)如下表:<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b72.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b72.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

每個GDEM分片包括兩個壓縮文件,一個數(shù)字高程模型(DEM)文件和一個質(zhì)量評估(QA)文件。如下圖所示:

<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b76.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b76.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

每個數(shù)據(jù)文件的文件名根據(jù)分片幾何中心左下(西南)角的經(jīng)緯度產(chǎn)生。例如,ASTGTM_N40E116文件的左下角坐標是北緯40度,東經(jīng)116度。ASTGTM_N40E116_dem和ASTGTM_N40E116_num對應的分別是數(shù)字高程模型(DEM)和質(zhì)量控制(QA)的數(shù)據(jù)。

詳細下載方法

打開網(wǎng)站進行注冊。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b74.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b74.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

進行登陸,登陸后點擊搜索進入下圖,有四種下載方式供用戶選擇。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b74.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b74.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

以北京為例,用到前面做好的polygon文件,選擇第三種方式進行下載。

瀏覽到已有的polygon,點擊OK。Polygon被加載到下面的DEM圖上,顯示需要下載6個分片。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b76.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b76.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

點擊NEXT,出現(xiàn)六個文件的列表。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b75.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b75.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

點擊NEXT,會讓用戶選擇下載數(shù)據(jù)的目的。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b76.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b76.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

6、點擊Agree后進行下載,分單個下載和批量下載。
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b76.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b76.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

網(wǎng)速較慢,這里只下載第一個,三維建模也只在這片DEM上進行演示。

三維建模

    有了DEM數(shù)據(jù)進行三維建模便簡單多了。有好多軟件供選擇,此處以ArcScene為例。步驟如下:

在ArcScene中三維建模數(shù)據(jù)需要投影坐標。所以第一步是為數(shù)據(jù)設(shè)置投影。

把數(shù)據(jù)加載到ArcScene中。

在數(shù)據(jù)層上點擊右鍵進行相應設(shè)置便得到三維效果。

<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b76.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b76.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

效果如下:
<img alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" src="http://b75.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?<img onload="Wpfcll.r(this,true);" src="https://javaforall.cn/wp-content/plugins/wp-fastest-cache-premium/pro/images/blank.gif" class="j-lazy" alt="google gis_系統(tǒng)數(shù)據(jù)交互圖" data-wpfc-original-src="http://javaforall.cn/wp-content/uploads/2020/11/2020110816061913.jpg" data-original="http://b75.photo.store.qq.com/http_imgload.cgi" title="[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互” alt=”[轉(zhuǎn)載]Google?Earth與ArcGIS數(shù)據(jù)交互”>

三維部分主要提供基本思路,要想做出漂亮的三維模型還需要綜合各種知識進行渲染。

總結(jié)

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