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Thanks for that link. That's the direction I'm headed.<br>
<br>
I posted here to find out if this is an error in the python
implementation or documentation and see if I should submit an issue.<br>
<br>
<div class="moz-signature"><b>Worth Lutz</b><br>
<br>
<br>
</div>
<div class="moz-cite-prefix">On 5/6/2016 8:15 AM, Caio Hamamura
wrote:<br>
</div>
<blockquote
cite="mid:CAABe9fZNUbs1QakfoN-rwp9vvnPqBQ_QV5V=3mWPNf2kXOdojg@mail.gmail.com"
type="cite">
<div dir="ltr">I've already used this function and it returned
exactly the same you claim to receive. But you can calculate the
position yourself, it is actually simple. Check it out:
<div><br>
</div>
<div><a moz-do-not-send="true"
href="http://stackoverflow.com/a/1560510/2548351">http://stackoverflow.com/a/1560510/2548351</a></div>
<div><br>
</div>
<div><br>
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<div class="gmail_extra"><br>
<div class="gmail_quote">2016-05-05 13:25 GMT-03:00 Worth Lutz <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:wal3@mindspring.com" target="_blank">wal3@mindspring.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> I'm trying to use
"closestSegmentWithContext" method of QgsGeometry in a
plugin. I don't seem to be getting what I'm expecting.<br>
<br>
Comparing
<a moz-do-not-send="true"
href="http://qgis.org/api/classQgsGeometry.html#ac09505a6a8a29f244a37c6f336cd98e7"
target="_blank">http://qgis.org/api/classQgsGeometry.html#ac09505a6a8a29f244a37c6f336cd98e7</a><br>
<br>
with the following from:
<a moz-do-not-send="true"
href="https://github.com/qgis/QGIS/blob/master/python/core/geometry/qgsgeometry.sip"
target="_blank">https://github.com/qgis/QGIS/blob/master/python/core/geometry/qgsgeometry.sip</a><br>
<br>
/**<br>
* Searches for the closest segment of geometry to the
given point<br>
* @param point Specifies the point for search<br>
* @param minDistPoint Receives the nearest point on
the segment<br>
* @param afterVertex Receives index of the vertex
after the closest segment. The vertex<br>
* before the closest segment is always afterVertex -
1<br>
* @param leftOf Out: Returns if the point lies on the
left of right side of the segment ( < 0 means left,
> 0 means right )<br>
* @param epsilon epsilon for segment snapping (added
in 1.8)<br>
* @return The squared cartesian distance is also
returned in sqrDist, negative number on error<br>
*/<br>
double closestSegmentWithContext( const QgsPoint&
point, QgsPoint& minDistPoint /Out/, int&
afterVertex /Out/ ) const;<br>
<br>
<br>
When I try: <br>
<blockquote><tt>results =
self.selectedStreetSegment.geometry().closestSegmentWithContext(point)</tt><br>
</blockquote>
<br>
I get a results as:<br>
<blockquote>(2560.365846544, (2106395, 746610), 1)<br>
</blockquote>
I take this to be (sqrDist, minDistPoint, afterVertex ).
It does not seem to be returning "leftOf" which is the
value I'm looking for.<br>
<br>
Is something missing in that "sip" definition? I do not
know what I'm looking at so I may be looking at the wrong
thing. In any case, I cannot seem to find the results I
need.<br>
<br>
Thanks,<br>
--<br>
<div><b>Worth Lutz</b><br>
<br>
<br>
</div>
</div>
<br>
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</blockquote>
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</blockquote>
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