Yes, i saw it, but in postgis 1.3.5 <code class="funcdef">geometry <b class="fsfunc">ST_MakeLine</b>(</code>geometry[] <var class="pdparam">point_array</var><code>)</code>; is not implemented...<br><br>gives error...<br><br>
here it is<br><br><br>ERROR: function makeline(geometry[]) does not exist<br>LINE 1: SELECT MakeLine(ARRAY[MakePoint(1,2,3),MakePoint(3,4,5), Mak...<br><br>you can check it here (just above example title)<br><br><a href="http://postgis.refractions.net/documentation/manual-svn/ST_MakeLine.html">http://postgis.refractions.net/documentation/manual-svn/ST_MakeLine.html</a><br>
<br><div class="gmail_quote">2009/6/23 <span dir="ltr"><<a href="mailto:nicklas.aven@jordogskog.no">nicklas.aven@jordogskog.no</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div align="left">ok</div>
<div align="left"> </div>
<div align="left">you saw my second answer?</div>
<div align="left">st_makeline should work if you just define an apoint array like</div>
<div align="left">array[point1, point2,point2, point1]</div>
<div align="left"> </div>
<div align="left">/Nicklas<div><div></div><div class="h5"><br>
<br>
2009-06-23 Caspa wrote:<br>
<br>
yeah this could be the solution...unfortunately I have postgis version 1.3.5 and i doesn't have this feature yet..(I'm on debian system and don't want to build from source)<br>
><br>
><br>
>>SELECT ST_MakePoly(ST_></div></div></div><div><div></div><div class="h5">
<div>>LineFromMultiPoint(ST_collect(coord1, coord2, coord3, coord4, coord5, coord1 ))) from table</div><br>
>this doesn't work, but I'm trying to use LineFromMultiPoint in other ways...maybe it works...<br>
><br>
>THANKS <br>
><br>
>SELECT ST_MakePoly(ST_>
<div>LineFromMultiPoint(ST_collect(coord1, coord2, coord3, coord4, coord5, coord1 ))) from table<br>
><br>
></div><br>
>>
<div>2009/6/23 <<a>nicklas.aven@jordogskog.no</a>><br>
> >
<div>>
<div align="left">About st_makeline an array is needed like this example:</div>>
<div align="left">select st_makepolygon(ST_MakeLine(array[st_point(3, 2),st_point(2, 2),st_point(3, 3),st_point(2, 5),st_point(5, 5),st_point(3, 2)]));</div>>
<div align="left"> </div>>
<div align="left">greetings </div>>
<div align="left">Nicklas>
<div>>
<div> </div>>
<div><br>
><br>
> 2009-06-23 Caspa wrote:<br>
><br>
> Hi, thanks for that,<br>
> >those are colunm in the table : <br>
> ><br>
> > coord1 | coord2 | coord3 | coord4 | pol <br>
> > ----------------------------------------------------+--------------------<br>
> > geom_data | geom_data | geom_data | geom_data | I WANT THIS<br>
> ><br>
> >I tried with this but didnt work;<br>
> ><br>
> >SELECT ST_MakePoly(ST_MakeLine(coord1, coord2, coord3, coord4, coord5, coord1 ) from table<br>
> ><br>
> >the problem is that I can't make i line from more than two points ( i'm using postgis v 1.3.5 and geometry <b>ST_MakeLine</b>(geometry[] point_array); doesn't work)<br>
> > I'm trying to figure out how to use <br>
> ><br>
> >geometry <b>ST_MakeLine</b>(geometry set pointfield);<br>
> ><br>
> >but how do I build a geometry set pointfield???<br>
> >sorry...really beginner!!<br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> ><br>
> >></div></div></div>>
<div>>
<div> </div>>
<div>>
<div>2009/6/22 Paragon Corporation <<a>lr@pcorp.us</a>><br>
> >Andrea,<br>
> > Are those individual records or columns in the table?<br>
> ><br>
> > Take a look at ST_MakeLine, ST_MakePolygon, ST_BuildArea<br>
> ><br>
> ><a href="http://postgis.refractions.net/documentation/manual-svn/ST_MakeLine.html" target="_blank">postgis.refractions.net/documentation/manual-svn/ST_MakeLine.html</a><br>
> ><br>
> ><a href="http://postgis.refractions.net/documentation/manual-svn/ST_BuildArea.html" target="_blank">postgis.refractions.net/documentation/manual-svn/ST_BuildArea.html</a><br>
> ><br>
> ><a href="http://postgis.refractions.net/documentation/manual-svn/ST_MakePolygon.html" target="_blank">postgis.refractions.net/documentation/manual-svn/ST_MakePolygon.html</a><br>
> ><br>
> ><br>
> > You build a line from points with ST_MakeLine and then do a ST_BuildArea or<br>
> > ST_MakePolygon depending on your desired effect.<br>
> ><br>
> > Leo<br>
> >></div>>
<div>> >
<div> </div>> >
<div><br>
> ><br>
> ><br>
> > -----Original Message-----<br>
> > From: <a>postgis-users-bounces@postgis.refractions.net</a><br>
> > [mailto:<a>postgis-users-bounces@postgis.refractions.net</a>] On Behalf Of Caspa<br>
> > Sent: Monday, June 22, 2009 10:15 AM<br>
> > To: <a>postgis-users@postgis.refractions.net</a><br>
> > Subject: [postgis-users] build a polygon from points<br>
> ><br>
> > Hi everybody,<br>
> > I'm new to postgis...<br>
> > how can i build a polygon starting from points and not from x,y coord?<br>
> ><br>
> > i have a table built like this:<br>
> ><br>
> > point1 | point2 | point3 | point4 | polygon<br>
> ><br>
> > guess i have to use MakeLine and MakePolygon but i can't fugure out why...<br>
> > thanks in advance<br>
> ><br>
> > Andrea<br>
> ></div></div>>
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