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<p>Hi Lene,</p>

<p>How about using the modulus operator in the QGIS expression?</p>

<p>With modulus you can select any nth line,</p>

<p>e.g. assuming that the tool created features where the gid advances by 1 for each feature, you could </p>

<p>gid % 2 = 0</p>

<p>selects gid with odd numbers: 0,2,4,6</p>

<p>or</p>

<p>gid % 5 = 0</p>

<p>would select every 5th number: 0,5,10,15,20</p>

<p>Hope this helps.</p>

<p>Just replace gid with whatever is your primary key column.</p>

<p>Andreas</p>

<p>On 2016-02-19 08:17, Lene Fischer wrote:</p>

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<p class="MsoNormal"><span style="font-size: 10.0pt; font-family: 'Verdana','sans-serif';">Hi,<!-- o ignored --></span></p>

<p class="MsoNormal"><span style="font-size: 10.0pt; font-family: 'Verdana','sans-serif';">I´m creating a tutorial about lawnmoving </span><span style="font-size: 10.0pt; font-family: Wingdings;">J</span><span style="font-size: 10.0pt; font-family: 'Verdana','sans-serif';"> <span>for calculating lengths ect. <!-- o ignored --></span></span></p>

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<p class="MsoNormal"><strong><span style="font-size: 7.5pt; font-family: 'Verdana','sans-serif'; color: gray; mso-fareast-language: DA;">Lene Fischer</span></strong><span style="mso-fareast-language: DA;"><!-- o ignored --></span></p>

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