<div dir="ltr">Dear Randy<div><br></div><div><br></div><div>unfortunately the dimensions of the smaller polygons are very variable and it's hard to apply your method.</div><div><br></div><div>I'm gonna try with GRASS or OTB or SAGA.</div><div><br></div><div>I will keep you in touch.</div><div>Thank you very much</div><div><br></div><div>Giacomo</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Apr 19, 2015 at 6:54 PM, Randal Hale <span dir="ltr"><<a href="mailto:rjhale@northrivergeographic.com" target="_blank">rjhale@northrivergeographic.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
I believe you can do it this way (as I'm experimenting with this
very thing). Of course - if you have very small polygons with even
smaller polygons this wouldn't work. <br>
<br>
Select features using an expression and let your expression be $area
< square units you are looking for. <br>
<br>
I wanted to select everything in my layer less than 10 acres (I am
working in Feet) so I entered $area < 435600 and have quite a few
polygons selected now. I am checking to make sure it has done what I
wanted. <br>
<br>
Hope this helps - I'm pretty sure there is a more elegant solution
than $area - but so far this works for me. <br>
<br>
Randy<div><div class="h5"><br>
<br>
<div>On 04/19/2015 12:38 PM, Giacomo
Fontanelli wrote:<br>
</div>
</div></div><blockquote type="cite"><div><div class="h5">
<div dir="ltr">Hello forum
<div><br>
</div>
<div>this post is similar to my last one, but not totally the
same.</div>
<div><br>
</div>
<div>Thank you for making me know the Sieve filter.</div>
<div><br>
</div>
<div>I have a vector layer.</div>
<div><br>
</div>
<div>I have some polygons that apparently seem to be lying on
bigger polygons and totally included on this, but if you
delete the small ones they produce holes on the big polygons
with the same dimension and shape of the small polygons.</div>
<div>Well: this is the result I'd like to obtain, I mean I would
like to automatically delete the smaller polygons producing
the described holes.</div>
<div><br>
</div>
<div>How can I do this?</div>
<div><br>
</div>
<div>Thank you very much</div>
</div>
<br>
<fieldset></fieldset>
<br>
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<pre cols="72">--
-----------------
Randal Hale
North River Geographic Systems, Inc
<a href="http://www.northrivergeographic.com" target="_blank">http://www.northrivergeographic.com</a>
<a href="tel:423.653.3611" value="+14236533611" target="_blank">423.653.3611</a> <a href="mailto:rjhale@northrivergeographic.com" target="_blank">rjhale@northrivergeographic.com</a>
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