Hi: I just use the QGIS software and I find some problem need help. The 
problems are:-1) How can I draw or plot in QGIS?2) How to load CAD Tools plugin 
into QGIS?3) The QGIS version 1.7.4 have nice feature, but i can't load the 
google maps as base map. Everytime I click, the QGIS will automatic close. This 
happen for me when using QGIS version 1.7.4. Please help. Can you pass to 
someone which can help me? Thank you Regards.Water.
 > From: [email protected]
> Subject: Qgis-user Digest, Vol 75, Issue 47
> To: [email protected]
> Date: Tue, 15 May 2012 04:16:41 -0400
> 
> Send Qgis-user mailing list submissions to
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> Today's Topics:
> 
>    1. Postgis query performance (fork)
>    2. Re: Postgis query performance (fork)
>    3. rendering problem in print composer (Jake Maier)
>    4. RE: Qgis-user Digest, Vol 75, Issue 43 (Alister  Hood)
>    5. Node Tool not working (Jay Dixon)
>    6. Re: Node Tool not working (Ramon Andi?ach)
>    7. Re: Node Tool not working (Andreas Neumann)
>    8. Re: rendering problem in print composer (Andreas Neumann)
>    9. Loading a Postgis Raster Layer (giannis Nj)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Mon, 14 May 2012 19:01:25 +0000 (UTC)
> From: fork <[email protected]>
> Subject: [Qgis-user] Postgis query performance
> To: [email protected]
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset=us-ascii
> 
> Hi all, 
> 
> I am running Master, trying to query a postgis layer via the attribute  table
> (Tiger blocks for the state of WA). It takes many, many minutes to finish, but
> when I run a similar query  in psql it takes 4.830 ms
> 
> psql query: select geoid10 from block10 
>       where cityname10 =  'Wenatchee' and gq10 >= 10 order by geoid10;
> 
> layer query criteria "cityname10 =  'Wenatchee' and gq10 >= 10"
> 
> Is there a way to speed this up?
> 
> Also, when I run the "query" from the right-click menu, and choose test, it
> gives me the number of rows without a select criteria (the above criteria 
> should
> yield about 10 rows, but test says ~174000)
> 
> Any ideas? 
> Thanks!
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Mon, 14 May 2012 19:56:14 +0000 (UTC)
> From: fork <[email protected]>
> Subject: [Qgis-user] Re: Postgis query performance
> To: [email protected]
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset=us-ascii
> 
> fork <forkandwait@...> writes:
> 
>  
> > Also, when I run the "query" from the right-click menu, and choose test, it
> > gives me the number of rows without a select criteria (the above criteria 
> >should
> > yield about 10 rows, but test says ~174000)
> 
> It seems that if I add a postgis layer with "estimate number of geometries 
> from statistics" or what it is called, the query functionality works again.
> 
> I could file a bug report if it seemed worthwhile.
> 
> Thoughts?
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Mon, 14 May 2012 17:11:59 -0400
> From: "Jake Maier" <[email protected]>
> Subject: [Qgis-user] rendering problem in print composer
> To: <[email protected]>
> Message-ID: <00ed01cd3216$354de8a0$9fe9b9e0$@[email protected]>
> Content-Type: text/plain;     charset="us-ascii"
> 
> I created a custom point, (stylist bird house) and it looks like a birdhouse
> in QGIS but when I bring the map into print composer the lines are
> misplaced. Creating the bird house, I lowered respective raised a straight
> line and turned it 90 degrees for floor and ceiling and used a > 90 degrees
> turned as roof. Again it all looks ok when displayed in qgis but when I
> bring it into the print composer all part seem to print on the same level
> and not turned 90 degrees. Strangely the legend prints the houses correctly.
> 
> Did I find my second bug or do I just miss an important step?
> Can anyone please help?
> Jake
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Mon, 14 May 2012 22:03:13 +0000
> From: "Alister  Hood" <[email protected]>
> Subject: [Qgis-user] RE: Qgis-user Digest, Vol 75, Issue 43
> To: "[email protected]" <[email protected]>
> Message-ID:
>       <[email protected]>
> Content-Type: text/plain; charset="us-ascii"
> 
> > Date: Sun, 13 May 2012 21:21:39 +0100
> > From: Giovanni Manghi <[email protected]>
> > Subject: Re: [Qgis-user] QGIS with geotiff tiles
> > To: [email protected]
> > Cc: qgis-user <[email protected]>
> > Message-ID: <1336940499.2363.88.camel@sibirica>
> > Content-Type: text/plain; charset="UTF-8"
> > 
> > On Sun, 2012-05-13 at 13:16 -0700, [email protected] wrote:
> > > I have a set of geotiffs, comprising several Gb of tiles covering an
> > > area.
> > >
> > > Is there any way QGIS can be configured to use a shapefile as a
> > > pointer to these, much as mapserver can do?
> > >
> > > I don't want to have each tile as a separate layer in QGIS,
> > 
> > 
> > you can create a virtual raster (catalog) or create the "tileindex". You
> > find both tools in the raster menu.
> > 
> > Cheers
> 
> If you try a tileindex, check out 
> http://lists.osgeo.org/pipermail/qgis-user/2012-March/015804.html
> Note that if you use an action like I described (instead of using one of the 
> plugins) the exact syntax is probably a little different, depending on what 
> version of QGIS you are running.  I gave the syntax for QGIS master, which 
> uses the new "expression builder" expressions. 
> 
> Alister
> 
> ------------------------------
> 
> Message: 5
> Date: Mon, 14 May 2012 16:54:46 -0700
> From: Jay Dixon <[email protected]>
> Subject: [Qgis-user] Node Tool not working
> To: [email protected]
> Message-ID:
>       <callw+k4xh0x+g2bqm8qsnh8ihdxnkr_0tw5juag3g8xta-6...@mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> I'm a new QGIS User, so I apologize in advance for the remedial nature of
> my question. Checked the postings to see if this question has come up
> before and it appears that it has not.
> 
> Whenever I create a shape file layer to draw shapes, QGIS will not allow me
> to draw polygons using the Node Tool.  I used to get some warning message
> about setting precision, snapping, or something similar.  I  followed the
> instructions in the message with no success.  I got tired of seeing the
> message so eventually checked the box 'don't show this message'.  Now
> nothing happens when I try to draw a polygon and I can't remember exactly
> what the message said and there doesn't seem to be an option for displaying
> these types of messages again.
> 
> Is anybody familiar with how to resolve this problem?  Thanks.
> 
> Jay Dixon
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> 
> ------------------------------
> 
> Message: 6
> Date: Tue, 15 May 2012 08:52:10 +0800
> From: Ramon Andi?ach <[email protected]>
> Subject: Re: [Qgis-user] Node Tool not working
> To: Jay Dixon <[email protected]>
> Cc: "[email protected]" <[email protected]>
> Message-ID: <[email protected]>
> Content-Type: text/plain;     charset=us-ascii
> 
> Hi Jay,
> 
> "Could not snap to segment"?
> If so, it means that the Node Tool couldn't find anything to work on where 
> you clicked. 
> 
> My understanding is that the Node Tool is for editing existing shapes. There 
> should be a button two to the left of the Node Tool called Capture Polygon 
> (or Line or Point depending on the shape file type) and I use that to draw a 
> polygon. 
> 
> Hope that's helpful. If not, it might be useful to the others to know which 
> version of QGIS you're using and your OS. 
> 
> -ramon.
> 
> On 15/05/2012, at 7:54, Jay Dixon <[email protected]> wrote:
> 
> > I'm a new QGIS User, so I apologize in advance for the remedial nature of 
> > my question. Checked the postings to see if this question has come up 
> > before and it appears that it has not.  
> > 
> > Whenever I create a shape file layer to draw shapes, QGIS will not allow me 
> > to draw polygons using the Node Tool.  I used to get some warning message 
> > about setting precision, snapping, or something similar.  I  followed the 
> > instructions in the message with no success.  I got tired of seeing the 
> > message so eventually checked the box 'don't show this message'.  Now 
> > nothing happens when I try to draw a polygon and I can't remember exactly 
> > what the message said and there doesn't seem to be an option for displaying 
> > these types of messages again.  
> > 
> > Is anybody familiar with how to resolve this problem?  Thanks.
> > 
> > Jay Dixon
> > _______________________________________________
> > Qgis-user mailing list
> > [email protected]
> > http://lists.osgeo.org/mailman/listinfo/qgis-user
> 
> 
> ------------------------------
> 
> Message: 7
> Date: Tue, 15 May 2012 08:19:35 +0200
> From: Andreas Neumann <[email protected]>
> Subject: Re: [Qgis-user] Node Tool not working
> To: <[email protected]>
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset=UTF-8; format=flowed
> 
>  yes - that's right. The node tool is only for editing existing 
>  geometries. Not to create new ones.
> 
>  Did you try the node tool on existing geometries or to add a new 
>  geometry? If you want to add new geometries you need to use the "Add 
>  Feature" Button in the digitizing toolbar. Once you added a new feature 
>  (incl. the attributes) than you can start modifying it with the node 
>  tool.
> 
>  You should also make sure that the snapping options make sense (if you 
>  use snapping at all) - either set in map units (meters, feet, degrees) 
>  or in pixels.
> 
>  Hope this helps,
>  Andreas
> 
>  On Tue, 15 May 2012 08:52:10 +0800, Ramon Andiñach wrote:
> > Hi Jay,
> >
> > "Could not snap to segment"?
> > If so, it means that the Node Tool couldn't find anything to work on
> > where you clicked.
> >
> > My understanding is that the Node Tool is for editing existing
> > shapes. There should be a button two to the left of the Node Tool
> > called Capture Polygon (or Line or Point depending on the shape file
> > type) and I use that to draw a polygon.
> >
> > Hope that's helpful. If not, it might be useful to the others to know
> > which version of QGIS you're using and your OS.
> >
> > -ramon.
> >
> > On 15/05/2012, at 7:54, Jay Dixon <[email protected]> wrote:
> >
> >> I'm a new QGIS User, so I apologize in advance for the remedial 
> >> nature of my question. Checked the postings to see if this question 
> >> has come up before and it appears that it has not.
> >>
> >> Whenever I create a shape file layer to draw shapes, QGIS will not 
> >> allow me to draw polygons using the Node Tool.  I used to get some 
> >> warning message about setting precision, snapping, or something 
> >> similar.  I  followed the instructions in the message with no success. 
> >> I got tired of seeing the message so eventually checked the box 
> >> 'don't show this message'.  Now nothing happens when I try to draw a 
> >> polygon and I can't remember exactly what the message said and there 
> >> doesn't seem to be an option for displaying these types of messages 
> >> again.
> >>
> >> Is anybody familiar with how to resolve this problem?  Thanks.
> >>
> >> Jay Dixon
> >> _______________________________________________
> >> Qgis-user mailing list
> >> [email protected]
> >> http://lists.osgeo.org/mailman/listinfo/qgis-user
> > _______________________________________________
> > Qgis-user mailing list
> > [email protected]
> > http://lists.osgeo.org/mailman/listinfo/qgis-user
> 
> -- 
>  --
>  Andreas Neumann
>  Böschacherstrasse 10A
>  8624 Grüt (Gossau ZH)
>  Switzerland
> 
> 
> ------------------------------
> 
> Message: 8
> Date: Tue, 15 May 2012 08:25:25 +0200
> From: Andreas Neumann <[email protected]>
> Subject: Re: [Qgis-user] rendering problem in print composer
> To: <[email protected]>
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset=UTF-8; format=flowed
> 
>  Hi Jake,
> 
>  This sounds very strange. Is this only happening in the print composer 
>  preview or also in the actual print out (PDF or real print out).
> 
>  Older QGIS versions (1.7 and below) did not show the print previews in 
>  the print composer with the correct scalings (the map extent was 
>  correct, but symbol sizes, line-widths and text sizes were not (usually 
>  drawn bigger compared to the print out)).
> 
>  In your case I would recommend that you create an SVG file with your 
>  birdhouse (you can do that in Inkscape or Adobe Illustrator). You then 
>  can use this bird house SVG file to represent your bird house symbol.
> 
>  Hope this helps,
>  Andreas
> 
>  On Mon, 14 May 2012 17:11:59 -0400, Jake Maier wrote:
> > I created a custom point, (stylist bird house) and it looks like a 
> > birdhouse
> > in QGIS but when I bring the map into print composer the lines are
> > misplaced. Creating the bird house, I lowered respective raised a 
> > straight
> > line and turned it 90 degrees for floor and ceiling and used a > 90 
> > degrees
> > turned as roof. Again it all looks ok when displayed in qgis but when 
> > I
> > bring it into the print composer all part seem to print on the same 
> > level
> > and not turned 90 degrees. Strangely the legend prints the houses 
> > correctly.
> >
> > Did I find my second bug or do I just miss an important step?
> > Can anyone please help?
> > Jake
> >
> > _______________________________________________
> > Qgis-user mailing list
> > [email protected]
> > http://lists.osgeo.org/mailman/listinfo/qgis-user
> 
> -- 
>  --
>  Andreas Neumann
>  Böschacherstrasse 10A
>  8624 Grüt (Gossau ZH)
>  Switzerland
> 
> 
> ------------------------------
> 
> Message: 9
> Date: Tue, 15 May 2012 08:14:46 +0000
> From: giannis Nj <[email protected]>
> Subject: [Qgis-user] Loading a Postgis Raster Layer
> To: <[email protected]>
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset="iso-8859-7"
> 
> 
> Hi to all,
> 
> I try to Add a raster layer from the Postgis 2.0. I connect normally to the 
> database and I load and display shapefiles correctly, but my raster data 
> tables appears to have no geometry and they can't be displayed in QGIS. Has 
> anyone managed to display normally raster data from Postgis, in order to help 
> me out? Thanks.
>                                         
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> 
> _______________________________________________
> Qgis-user mailing list
> [email protected]
> http://lists.osgeo.org/mailman/listinfo/qgis-user
> 
> 
> End of Qgis-user Digest, Vol 75, Issue 47
> *****************************************
                                          
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