[Qgis-user] Ho retrieve the attributealias list

[Andrea Peri]

Hi,

I need to retrieve a list of attribute alias.
To do this, I try this code:

for lid, orientation in self.templateTable.model().getObjectIter():
   layer = QgsMapLayerRegistry.instance().mapLayer(lid)
   for idx, fld in enumerate(layer.attributeList()):
...

The qgis report me this error:

for idx, fld in enumerate(layer.attributeList()):
AttributeError: 'QgsVectorLayer' object has no attribute 'attributeList'

But I see the AttributeList is available in that clas as reported from the
help.

http://www.qgis.org/api/classQgsVectorLayer.html#a9fdee4a58551d7e1424c8f66ab6c14a0

Perhaps I'm wrong something or the documentation API is obsolete ?

Thx.



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Re: [Qgis-user] Ho retrieve the attributealias list

[Matthias Kuhn]

Hi

layer.attributeList() works for me, I really don't know what goes wrong
there for you. But it's a quite silly functions since the attribute
indexes were changed to always be sequential. Now it just delivers a
list each numbers from 0..count-1. So your enumerate will allways give
you [(0,0)..(n-1, n-1)].

That said, what you probably want to use is layer.attributeAliases().
That gives you a mapping of field names to aliases.
Or [(idx, layer.attributeAlias(idx)) for idx in
range(layer.fields().count())] if you really want to use the field indexes.

Best,
Matthias

On 11/02/2015 02:28 PM, Andrea Peri wrote:
> Hi,
>
> I need to retrieve a list of attribute alias.
> To do this, I try this code:
>
> for lid, orientation in self.templateTable.model().getObjectIter():
>layer = QgsMapLayerRegistry.instance().mapLayer(lid)
>for idx, fld in enumerate(layer.attributeList()):
> ...
>
> The qgis report me this error:
>
> for idx, fld in enumerate(layer.attributeList()):
> AttributeError: 'QgsVectorLayer' object has no attribute 'attributeList'
>
> But I see the AttributeList is available in that clas as reported from the
> help.
>
> http://www.qgis.org/api/classQgsVectorLayer.html#a9fdee4a58551d7e1424c8f66ab6c14a0
>
> Perhaps I'm wrong something or the documentation API is obsolete ?
>
> Thx.
>
>
>




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Re: [Qgis-user] Geopackage on 2.12

[Randal Hale]

Excellent - I guess that is expected behavior then. Yep - I can add it 
also through the vector dialog also.


Thanks!

Randy



On 11/02/2015 04:20 AM, James Wood wrote:

Hey Randy,
I get the same on Win7 x64, however, since I have to choose the "All files (*)" 
option to even see my geopackage, I'm guessing this dialog is .sqlite/.db specific. I can 
add my .gpkg just fine through the Add Vector Layer button of the same menu.

James
Sent from my iPhone


On Nov 1, 2015, at 20:08, Randal Hale  wrote:

This may be expected behavior.

I created a Geopackage by saving a Shapefile to that format. I can edit the 
geopackage and save it. I can connect to the geopackage and drag and drop more 
layers into it through the DB Manager.

The problem (and it may not be) is if I try to connect through the spatialite 
menu on the manage layers toolbar I can't connect - I get an error. Which 
technically it is the spatialite menu and not the spatialite/geopackage menu.

Anyway - this may be completely expected but had me confused so I thought it 
would check.

QGIS 2.12 Ubuntu/Windows 64 bit.

Randy

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[Qgis-user] How retrieve the info "hidden" from attribute table

[Andrea Peri]

Hi,

is possible using QGIS python API retrieve the information "hidden"
for a field ?

I show the sample in this image attached.


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Re: [Qgis-user] Ho retrieve the attributealias list

[Andrea Peri]

Hi,

I resolved !


The solution was:

for idx, fld in enumerate(layer.dataProvider().fields()):

and after in the code retrieve the alias (or the fieldname) using:

layer.attributeDisplayName(idx)

and the real name of the field using:

fld.name()

Thx for help.


2015-11-02 16:32 GMT+01:00 Andrea Peri :
> Hi,
>
> yes , my goal was to retrieve the aliases.
>
> To reach this information I plan to use this function:
>
> fldDescr = fld.attributeDisplayName()
>
> The attributeAlias give me the aliases when availables, but when they
> are not filled it return a null (or empty) string.
> Instead the attributeDisplayName() return the Alias or the original FieldName.
>
> A.
>
>
> 2015-11-02 15:28 GMT+01:00 Matthias Kuhn :
>> Hi
>>
>> layer.attributeList() works for me, I really don't know what goes wrong
>> there for you. But it's a quite silly functions since the attribute
>> indexes were changed to always be sequential. Now it just delivers a
>> list each numbers from 0..count-1. So your enumerate will allways give
>> you [(0,0)..(n-1, n-1)].
>>
>> That said, what you probably want to use is layer.attributeAliases().
>> That gives you a mapping of field names to aliases.
>> Or [(idx, layer.attributeAlias(idx)) for idx in
>> range(layer.fields().count())] if you really want to use the field indexes.
>>
>> Best,
>> Matthias
>>
>> On 11/02/2015 02:28 PM, Andrea Peri wrote:
>>> Hi,
>>>
>>> I need to retrieve a list of attribute alias.
>>> To do this, I try this code:
>>>
>>> for lid, orientation in self.templateTable.model().getObjectIter():
>>>layer = QgsMapLayerRegistry.instance().mapLayer(lid)
>>>for idx, fld in enumerate(layer.attributeList()):
>>> ...
>>>
>>> The qgis report me this error:
>>>
>>> for idx, fld in enumerate(layer.attributeList()):
>>> AttributeError: 'QgsVectorLayer' object has no attribute 'attributeList'
>>>
>>> But I see the AttributeList is available in that clas as reported from the
>>> help.
>>>
>>> http://www.qgis.org/api/classQgsVectorLayer.html#a9fdee4a58551d7e1424c8f66ab6c14a0
>>>
>>> Perhaps I'm wrong something or the documentation API is obsolete ?
>>>
>>> Thx.
>>>
>>>
>>>
>>
>>
>>
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>
>
>
> --
> -
> Andrea Peri
> . . . . . . . . .
> qwerty àèìòù
> -



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Re: [Qgis-user] How retrieve the info "hidden" from attribute table

[Matthias Kuhn]

Hi

Hidden is a special type of a widget.
layer.editorWidgetV2(idx)

Best
Matthias

On 11/02/2015 09:42 PM, Andrea Peri wrote:
> Hi,
>
> is possible using QGIS python API retrieve the information "hidden"
> for a field ?
>
> I show the sample in this image attached.
>
>
>
>
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Re: [Qgis-user] wms-layer-legend in print composer distorted

[Luigi Pirelli]

How is the resolution of the same legend i the QGIS Layer panel?

remember that you can set WMS getLegendGraphic resolution in:

Options->settings->Canvas>WMS getLegendGraphics resolution

regards
Luigi Pirelli

**
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**


On 2 November 2015 at 09:04, Julian Schall  wrote:
> Hi all,
>
> if i want to include a wms-Layer into a print composition the associated
> legend is distorted (compare attached picture).
>
> Is there a possibility known to get the wms-legend in the correct format?
>
>
>
> Regards
>
>
> Julian
>
>
>
>
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[Qgis-user] wms-layer-legend in print composer distorted

[Julian Schall]

Hi all,

if i want to include a wms-Layer into a print composition the associated
legend is distorted (compare attached picture).

Is there a possibility known to get the wms-legend in the correct format?

 

Regards


Julian

 

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Re: [Qgis-user] wms-layer-legend in print composer distorted

[Julian Schall]

Hi Luigi,

>>How is the resolution of the same legend i the QGIS Layer panel?
>>remember that you can set WMS getLegendGraphic resolution in:
>>Options->settings->Canvas>WMS getLegendGraphics resolution

In the layer panel appears a legend icon if I set the resolution 0. Resolution 
>=1 prohibits an icon in the layerlist.
The distortion doesn't depend on the adjustment of the option WMS 
getLegendGraphics resolution.

Regards

Julian


**
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* Elance: https://www.elance.com/s/edit/luigipirelli/
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* Stackexchange: http://gis.stackexchange.com/users/19667/luigi-pirelli
* Mastering QGIS:
https://www.packtpub.com/application-development/mastering-qgis
**


On 2 November 2015 at 09:04, Julian Schall  wrote:
> Hi all,
>
> if i want to include a wms-Layer into a print composition the 
> associated legend is distorted (compare attached picture).
>
> Is there a possibility known to get the wms-legend in the correct format?
>
>
>
> Regards
>
>
> Julian
>
>
>
>
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[Qgis-user] Using iphone as gps to log points

[Susan Iremonger]

Hi, does anyone know a good app that will enable me to log GPS points,
taken when I visit different locations, into my iphone and then export them
so I can use them in QGIS?
Many thanks.
--Susan.
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Re: [Qgis-user] Using iphone as gps to log points

[Randal Hale]

I've used two: Geopaparazzi (open source) and Fulcrum (commercial). Both 
are very good at what they do - both with well with QGIS.




On 11/02/2015 05:03 PM, Susan Iremonger wrote:
Hi, does anyone know a good app that will enable me to log GPS points, 
taken when I visit different locations, into my iphone and then export 
them so I can use them in QGIS?

Many thanks.
--Susan.



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http://www.northrivergeographic.com
423.653.3611 rjh...@northrivergeographic.com
twitter:rjhale http://about.me/rjhale
http://www.northrivergeographic.com/introduction-to-quantum-gis
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Re: [Qgis-user] How retrieve the info "hidden" from attribute table

[Andrea Peri]

Hi Mathias,

I resolve my code.

Thx really for the help.

A.


2015-11-02 21:46 GMT+01:00 Matthias Kuhn :
> Hi
>
> Hidden is a special type of a widget.
> layer.editorWidgetV2(idx)
>
> Best
> Matthias
>
> On 11/02/2015 09:42 PM, Andrea Peri wrote:
>
> Hi,
>
> is possible using QGIS python API retrieve the information "hidden"
> for a field ?
>
> I show the sample in this image attached.
>
>
>
>
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>
>
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Re: [Qgis-user] Geopackage on 2.12

[James Wood]

Hey Randy,
I get the same on Win7 x64, however, since I have to choose the "All files (*)" 
option to even see my geopackage, I'm guessing this dialog is .sqlite/.db 
specific. I can add my .gpkg just fine through the Add Vector Layer button of 
the same menu. 

James
Sent from my iPhone

> On Nov 1, 2015, at 20:08, Randal Hale  wrote:
> 
> This may be expected behavior.
> 
> I created a Geopackage by saving a Shapefile to that format. I can edit the 
> geopackage and save it. I can connect to the geopackage and drag and drop 
> more layers into it through the DB Manager.
> 
> The problem (and it may not be) is if I try to connect through the spatialite 
> menu on the manage layers toolbar I can't connect - I get an error. Which 
> technically it is the spatialite menu and not the spatialite/geopackage menu.
> 
> Anyway - this may be completely expected but had me confused so I thought it 
> would check.
> 
> QGIS 2.12 Ubuntu/Windows 64 bit.
> 
> Randy
> 
> -- 
> 
> Randal Hale
> North River Geographic Systems, Inc
> http://www.northrivergeographic.com
> 423.653.3611 rjh...@northrivergeographic.com
> twitter:rjhale http://about.me/rjhale
> http://www.northrivergeographic.com/introduction-to-quantum-gis
> 
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[Qgis-user] How retrieve the size of a font truetype

[Andrea Peri]

Hi,

I'm try-ing, in a python plugin, to retrieve the size of a font label.

I have this code:

unicode( fontDef).encode('utf8'), fm.height() )

But it is retrieve the wrong value.
Infact If I try to set a font size of 9 dpi using the qgis interface,
when try to retrieve it return me a value of 21.

I try to use a
fm.size(),
but it seem don't exist.

So perhaps it could be have a differente method to retrieve the label font size.

Thx.


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Re: [Qgis-user] GRASS Plugin ready

[Radim Blazek]

On Mon, Nov 2, 2015 at 12:52 AM, William Kyngesburye
 wrote:
> As one of those packagers, is there any reason to include support for both in 
> a build?  Or is GRASS 7 support good enough?

The only reason to build version 6 is to support users who haven't
switched yet to GRASS 7. The plugin is identical for both versions,
differences are only in available GRASS modules and their options.

Radim

>> On Nov 1, 2015, at 3:09 PM, Radim Blazek  wrote:
>>
>> Hi all,
>>
>> I would like to formally conclude the upgrade of the GRASS Plugin in
>> QGIS. Everything specified in the crowdfunding campaign is implemented
>> in recently released QGIS 2.12. The source code supports both GRASS 6
>> and 7. Version(s) supported in binary distributions may vary and
>> depend on packagers' decision.
>>
>
> -
> William Kyngesburye 
> http://www.kyngchaos.com/
>
> "Oh, look, I seem to have fallen down a deep, dark hole.  Now what does that 
> remind me of?  Ah, yes - life."
>
> - Marvin
>
>
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Re: [Qgis-user] Using iphone as gps to log points

[Nicolas Cadieux]

Hi, 
You could easily just take a picture with the phone and take the coordinates 
from the image tags. You can then use a plugin like photo2kmz to create a 
point file of where the images where taken. 
This is a phone so I doubt that the quality of the coordinates will be much 
worse then with a special apt. On Android, there are a few apts that can 
take a point average. That would be better. Not sure what is out 
there for the iPhone... 
Nicolas Cadieux M.Sc. 
Les Entreprises Archotec inc. 
8548, rue Saint-Denis Montral H2P 2H2 
Tlphone:514.381.5112 Fax: 514.381.4995 
www.archeotec.ca 
On Nov 2, 2015 17:12, Randal Hale [via OSGeo.org] 
ml-node+s1560n5234032...@n6.nabble.com wrote: 


  

  
  
Ive used two: Geopaparazzi (open source) and Fulcrum (commercial). 
Both are very good at what they do - both with well with QGIS. 



On 11/02/2015 05:03 PM, Susan Iremonger
  wrote: 


  Hi, does anyone know a good app that will enable me
to log GPS points, taken when I visit different locations, into
my iphone and then export them so I can use them in QGIS?
Many thanks. 
--Susan. 
  
  

  
  
  
  
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twitter:rjhale http://about.me/rjhale 
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Re: [Qgis-user] QGIS 2.12 packaging for Ubuntu 14.04?

[César Augusto Ramírez Franco]

QGIS 2.12 is not a LTR version, so you need to change your repository from
LTR to the normal release branch to get the update

2015-11-01 16:10 GMT-05:00 Brent Wood :

> I understood the point of this thread was to discuss v2.12 for this
> platform - & it is not there for me.
>
> So is QGIS v2.12 still not available as a standard package for (64 bit)
> Ubuntu Trusty/Mint Rebecca?
>
> What is the recommended way to install 2.12 on this platform?
>
> Cheers,
>
> Brent
> --
> *From:* Jürgen E. Fischer 
> *To:* qgis-user@lists.osgeo.org
> *Sent:* Monday, November 2, 2015 10:00 AM
> *Subject:* Re: [Qgis-user] QGIS 2.12 packaging for Ubuntu 14.04?
>
> Hi Brent,
>
> On Sun, 01. Nov 2015 at 20:50:44 +, Brent Wood wrote:
> > I have added the QGIS LTR repository & the ubuntugis unstable one, but
> still
> > only get 2.8.1 listed when I try to update QGIS.
>
> But we were talking about 2.12 not 2.8.  But:
>
> # tail -2 /etc/apt/sources.list
> deb http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu trusty
> main
> deb http://qgis.org/ubuntugis-ltr trusty main
> # apt-cache policy qgis
> qgis:
>   Installed: (none)
>   Candidate: 1:2.8.3+20trusty-ubuntugis
>   Version table:
> 1:2.8.3+20trusty-ubuntugis 0
> 500 http://qgis.org/ubuntugis-ltr/ trusty/main i386 Packages
> 1:2.8.1-0+20trusty6 0
> 500 http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu/ 
> trusty/main
> i386 Packages
> 2.0.1-2build2 0
> 500 http://approx:/ubuntu/ trusty/universe i386 Packages
>
> So that looks fine to me.
>
>
>
>
>
> Jürgen
>
> --
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> Dipl.-Inf. (FH)Rheinstraße 13  Fax. +49-4931-918175-50
> Software Engineer  D-26506 Nordenhttp://www.norbit.de
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> FreeNode
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Re: [Qgis-user] Using iphone as gps to log points

[Phil (The Geek) Wyatt]

Hi Susan,

 

It's probably over the top for simple needs but the Fulcrumapp has recently 
changed its pricing structure and for $18 a month you can use fully validated 
forms to collect points including photos etc. You can have as many forms as you 
want to collect different information. At this stage it only collects points.

 

You can also have a "live feed" into QGIS if you want.

 

http://www.fulcrumapp.com/blog/live-data-visualization-in-qgis/

 

http://www.fulcrumapp.com/plans/

 

Cheers - Phil

 

 

From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Susan 
Iremonger
Sent: Tuesday, 3 November 2015 9:03 AM
To: qgis-user
Subject: [Qgis-user] Using iphone as gps to log points

 

Hi, does anyone know a good app that will enable me to log GPS points, taken 
when I visit different locations, into my iphone and then export them so I can 
use them in QGIS?

Many thanks.

--Susan.

 

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Re: [Qgis-user] Using iphone as gps to log points

[James Wood]

Also, check out iGIS. 

James
Sent from my iPhone

> On Nov 2, 2015, at 16:03, Susan Iremonger  wrote:
> 
> Hi, does anyone know a good app that will enable me to log GPS points, taken 
> when I visit different locations, into my iphone and then export them so I 
> can use them in QGIS?
> Many thanks.
> --Susan.
> 
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Re: [Qgis-user] Using iphone as gps to log points

[William Kyngesburye]

Avenza's PDF Maps is an option.  You need to add maps first, which you can 
easily do from GeoPDFs or from their store (US topo maps are free).

> On Nov 2, 2015, at 4:03 PM, Susan Iremonger  wrote:
> 
> Hi, does anyone know a good app that will enable me to log GPS points, taken 
> when I visit different locations, into my iphone and then export them so I 
> can use them in QGIS?
> Many thanks.
> --Susan.
> 
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-
William Kyngesburye 
http://www.kyngchaos.com/

The equator is so long, it could encircle the earth completely once.

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[Qgis-user] order of shapes and polygons while drawing

[ranjith kumar]

Hi,

What is the order QGIS uses while drawing shapes ?
Is it from shape number 0 to shape number n-1 (n is total number of
zones)? or Shape number n-1 to 0?

Also each shape may contain more than 1 part and each part(polygon)
may be a normal shape(vertices are clockwise direction) or a
hole(vertices are in anticlockwise direction)?
What is the order QGIS draws ? First normal shapes and then holes? or
whatever order the shape file(.shp) contains?

Why I am asking this question is I am calling windows API to draw the
shapes from 0 to n-1, and each part in the order same as in the .shp
file.
But the shapes drawn(final result) are different from the QGIS.

Does any body know the order QGIS draws?

Thanks in advance.
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