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Here it's nice info:<br>
<a class="moz-txt-link-freetext" href="http://www.northrivergeographic.com/archives/qgis-2-6-virtual-fields">http://www.northrivergeographic.com/archives/qgis-2-6-virtual-fields</a><br>
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<div class="moz-cite-prefix">W dniu 2016-02-10 o 10:18, Josefine
Petrenz pisze:<br>
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<div>hej hej,<br>
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at first, I would like to apologize for my english.<br>
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I have a shape-file with several areas. In my attribut
table, each area has an information about the area size.<br>
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Step by step the areas become bigger or smaller. Every time,
when this happened, i have to recalculate the area size. is
there a way, that the area size correct automatically in the
attribute table, when i change the area?<br>
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thanks in advance<br>
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josi <br>
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