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<p>FME, which sources from GEOS
(<a class="moz-txt-link-freetext" href="https://cdn.safe.com/resources/fme/FMEDesktop_Legal_Notices_2019.0.pdf">https://cdn.safe.com/resources/fme/FMEDesktop_Legal_Notices_2019.0.pdf</a>),
did not handle the measurement with its Clipper transformer until
about two years ago. Wonder if they achieved this through direct
update the GEOS lib or through post-GEOS enhancement. <br>
</p>
<div class="moz-cite-prefix">On 5/6/19 2:53 PM, Martin Davis wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAK2ens1HL-eLMibPj+XQ4Sn0eK745TFfXYZdLF4zsVPJZBUKzg@mail.gmail.com">
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<div dir="ltr">Not exactly the same thing - I believe that ticket
is referring to just the WKB format handling?
<div><br>
</div>
<div>I can make a ticket for measure handling by the overlay
operations if there isn't one already.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, May 6, 2019 at 11:31
AM Darafei "Komяpa" Praliaskouski <<a
href="mailto:me@komzpa.net" moz-do-not-send="true">me@komzpa.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="auto"><span
style="font-family:sans-serif;font-size:12.8px">It's in
backlog for 6 years already I believe: </span><a
href="https://trac.osgeo.org/geos/ticket/466"
style="text-decoration-line:none;color:rgb(66,133,244);font-family:sans-serif;font-size:12.8px"
target="_blank" moz-do-not-send="true">https://trac.osgeo.org/geos/ticket/466</a></div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">пн, 6 мая 2019, 19:33
карыстальнік Martin Davis <<a
href="mailto:mtnclimb@gmail.com" target="_blank"
moz-do-not-send="true">mtnclimb@gmail.com</a>>
напісаў:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr">It should be possible to post-process GEOS
results to re-populate the M values if present. Linear
interpolation could be used to estimate values at
intra-segment points. We can put this on the list for
future development.</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, May 6, 2019 at
4:48 AM Darafei "Komяpa" Praliaskouski <<a
href="mailto:me@komzpa.net" rel="noreferrer"
target="_blank" moz-do-not-send="true">me@komzpa.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px
0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr">Hi,
<div><br>
</div>
<div>GEOS operations do not preserve M, but
sometimes preserve Z. You can try
ST_SwapOrdinates(ST_Intersection(ST_SwapOrdinates(geom,
'zm'),...), 'zm').</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, May 2,
2019 at 5:19 AM Bo Guo <<a
href="mailto:bo.guo@gisticinc.com"
rel="noreferrer" target="_blank"
moz-do-not-send="true">bo.guo@gisticinc.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px
0px 0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">Hi there,<br>
<br>
I was trying to cut a portion of the LRS route
with an area using <br>
ST_Intersection. However the resulting route no
longer carries measure <br>
value. The behavior is the same for version 9.6
or the latest version <br>
11. Anyone has any suggestions?<br>
<br>
Thanks!<br>
<br>
Bo<br>
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-- <br>
<div dir="ltr"
class="gmail-m_7686164059452819975m_7071114689345428288gmail-m_-9118222508503133905gmail_signature">
<div dir="ltr">
<div>
<div>Darafei Praliaskouski</div>
<div>Support me: <a
href="http://patreon.com/komzpa"
rel="noreferrer" target="_blank"
moz-do-not-send="true">http://patreon.com/komzpa</a></div>
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<div class="moz-signature">-- <br>
Bo Guo, PhD, PE <br>
Gistic Research, Inc.<br>
2033 E Warner Rd. Ste 105 <br>
Tempe, AZ 85284 <br>
<a href="" "http:="" www.gisticinc.com"="">www.gisticinc.com</a> <br>
Tel: 480-656-9962
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