「Working with the Attribute Table」の版間の差分
(ページの作成: <H3> Working with the Attribute Table </H3> <P> To open the attribute table for a vector layer, make the layer active by clicking on it in the Map legend area. Then use Layer L…) |
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2009年8月17日 (月) 20:30時点における版
Working with the Attribute Table
To open the attribute table for a vector layer, make the layer active by clicking on it in the Map legend area. Then use Layer Layer from the main menu and and choose mActionOpenTableOpen Attribute Table from the menu. It is also possible to rightlick on the layer and choose mActionOpenTableOpen Attribute Table from the dropdown menu. This will open a new window which displays the attributes for every feature in the layer (figure <A HREF="#fig:attributetable">18</A>). <P>
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[clip=true, width=12cm]vectorAttributeTable
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<P> Each column can be sorted by clicking on its header. A small arrow indicates the sort order (downward pointing means descending values from the top row down, upward pointing means ascending values from the top rown down). For a simple selection by attributes on only one column the Look for field can be used. Select the field (column) from which the search should be performed from the dropdown menu and hit the Search button. For more complex searches use the Advanced search ..., which will lauch the Search Query Builder described in Section <A HREF="node30.html#sec:select_by_query">5.7</A>.
<P> To show selected records only, use the checkbox Show selected records only. Using the buttons at the bottom left of the window, selected fields can be removed, moved to the top of the table, or the selection can be inverted. Selected features can also be copied to the clipboard, which can also be done with Ctrl-C. You can also zoom
into the selected features on the map. Toggle editing allows to edit single values of attributes.
