Select * from grid25yr_up25cm where Grid_code>= .25 and Grid_code<.5
into Selection
Browse * From Selection
Select * from grid25yr_up25cm where Grid_code>= .5 and Grid_code<1
into Selection
Browse * From Selection
Select * from grid25yr_up25cm where Grid_code>=1 and Grid_code<2 into Selection
Browse * From Selection
Select * from grid25yr_up25cm where Grid_code>=2 and Grid_code<3 into Selection
Browse * From Selection
Select * from grid25yr_up25cm where Grid_code>=3 and Grid_code<4 into Selection
Browse * From Selection
Select * from grid25yr_up25cm where Grid_code>=4 and Grid_code<5 into Selection
Browse * From Selection
Select * from grid25yr_up25cm where Grid_code>=5 and Grid_code<6 into Selection
Browse * From Selection
Select * from grid25yr_up25cm where Grid_code>=6 into Selection
Browse * From Selection
Update Query12 Set deep = 1
Browse * From Query12
Update Query13 Set deep = 2
Browse * From Query13
Update Query14 Set deep = 3
Browse * From Query14
Update Query15 Set deep = 4
Browse * From Query15
Update Query16 Set deep = 5
Browse * From Query16
Update Query17 Set deep = 6
Browse * From Query17
Update Query18 Set deep = 7
Browse * From Query18
Update Query19 Set deep = 8
Browse * From Query19
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gis 軟體中進行數化工作蠻重要的snap 功能 在mapinfo 按下s 即可啟動snap 功能 而在Quantum GIS 中如何設定snap 鎖點功能 點選╲ 設定（s） 再點選 ╲選項 再點選 ╲數位化 編輯 自動接合 snapping選項內容 調整選項區包... -
在gis資料處理中常會因為某些特殊需求需要針對欄位內容進行字串或內的調整 已表單為例目前id 資料欄位中為特定的文字編碼 若希望在編碼前加入另一個代號 如 RR的字串 在QGIS中可以利用欄位的計算功能 輸入下面語法 concat ( 'RR','... -
一般在完成相關GIS分析成果後相關圖檔與圖層內容往往會分散在不同資料夾內 因此在相關資料要提供給其他使用者進行後續資料分析與使用時往往會需要花費時間進行相 關圖層複製或另存新檔到相同資料夾中並且調整專案檔中各圖檔的檔案路徑 才能將使用的圖層檔案完整分享給其他使用者 ...
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