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使用 SRTM 資料 進行路徑縱剖面線製作 簡報人:沈志全 2008/12/17
說明內容 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SRTM 說明( 1/2 ) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SRTM 說明( 2/2 ) ,[object Object],[object Object],[object Object],[object Object],[object Object]
使用 SURFER 製作 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
剖面線資料來源處理 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
剖面線資料來源處理 -KML 處理 原始利用 GOOGLE MAP  輸出之 KML 檔 使用 GOOGLE EARTH 輸出之 KML 檔
剖面線資料來源處理 - 剖面線(路徑檔)坐標轉換 WGS84  TWD97
Surfer bln 格式說明 1937  1 120.995689 24.783213 120.996071998 24.7829412206 120.996178 24.782866 點位數量 1 範圍內移除 0  範圍外移除
BLN 檔 在 BLANK 使用之差異 7 1 3.081579 1.9368425 1.1131575 3.6447365 1.5763155 6.1631585 5.0500005 6.2499995 7.2499995 4.628948 6.9315795 1.2999995 8.031579 0.5184215 7 0 3.081579 1.9368425 1.1131575 3.6447365 1.5763155 6.1631585 5.0500005 6.2499995 7.2499995 4.628948 6.9315795 1.2999995 8.031579 0.5184215
BLN 檔 在 Slice 使用 X 坐標 ,Y 坐標 , 高程 , 累距
Surfer   ASCII Grid File Format   DSAA         檔頭  10 10          x (columns) y (rows) 0.0 9.0        x_min x_max 0.0 7.0        y_min y_min   25.00 97.19      z_min z_max     91.03 77.21 60.55 46.67 52.73 64.05 41.19 54.99 44.30 25.00 96.04 81.10 62.38 48.74 57.50 63.27 48.67 60.81 51.78 33.63
ESRI  ASCII Grid File Format ncols  28  X  columns 數量 nrows  19  Y  rows 數量 xllcenter  18858  X 坐標 yllcenter  360269  Y 坐標   cellsize  5  格網大小 NODATA_value  -9999.0  空值  12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
ASCII GRID  轉換 ESRI ASCII GRID Surfer ASCII Grid
使用 SURFER  資料鏡射原理 使用  Grid  功能下的  Transform WGS84
使用 SURFER  資料鏡射原理 TWD97
剖面運算處理 選擇網格資料來源 選擇路徑資料來源 設定輸出位置 使用  Grid  功能下的  Slice..
SURFER 完成之成果
SURFER 資料比對 WGS84 距離單位: 度 TWD67 距離單位: 公尺
使用 ARCGIS 製作 SRTM DEM DATA 路徑
ARCGIS 使用模組 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
點位轉換成為線段
ASC 轉換為 Raster
坐標轉換與校正
polyline 轉換為 3D line 沒有轉換會出現錯誤訊息
剖面線計算與展示 選擇 3D Analyst 內的 Create Profile Graph 點選 3D LINE
完成路線里程與高程剖面資料
WGS84 TWD97 距離單位:度 距離單位:公尺
相關應用 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
評分標準 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The End  EMAIL :  [email_address] http://shencoop.blogspot.com

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