<div dir="ltr">Hola muchas gracias!<div><br></div><div>Saludos</div><div><br></div><div>Eddison</div></div><div class="gmail_extra"><br><div class="gmail_quote">2017-09-15 8:50 GMT-06:00 Andreas Neumann <span dir="ltr"><<a href="mailto:a.neumann@carto.net" target="_blank">a.neumann@carto.net</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p>Hi Eddisson?</p>
<p>Which z value? In your example you have different z-values
attached to vertices, but you can only hold a single z-value per
record.</p>
<p>There are expressions like z(feature) that work on points, and
there are expressions like point_n(LineStringGeom) to access a
certain node. With this, you could say extract the z-values of the
first node of a feature.</p>
<p>Getting an aggregate (say mean z-value) of all nodes would be
more complex and I am not sure if it can be done without Python.</p>
<p>Andreas<br>
</p><span class="">
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<div class="m_-7413709895717230329moz-cite-prefix">On 15.09.2017 16:37, Eddison Araya
wrote:<br>
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<div dir="ltr">
<div>Hello! a pleasure to greet Do you know how to convert a 3d
polyline shapefile to a 2D and keep the Z value in your
attribute table? Thank you</div>
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