[Qgis-user] Symbology: switch off automatic classification

[Nathan Woodrow]

Yes I agree the classify button is a little superfluous now.  It was a
bit of a oversight on my part. I think we could replace it with a
"Freeze Classification" button, or something like that.

Can you open a ticket and assign it to me on hub.qgis.org so I don't
forget about it.

- Nathan

On Thu, Aug 16, 2012 at 6:03 PM, Tammo Jan Dijkema <dijkema at hypercube.nl> wrote:
> Hi Nathan,
>
> Thanks for your reply. We'll switch to manually editing the qml-file for now.
>
> However, I would say the feature could have been thought through a bit more. The button 'classify' now seems superfluous, and there is no way to prevent an update when changing layers. Perhaps the button 'classify' could be replaced by an option to automatically reclassify. Another option would be to add a classification scheme 'manual' which copies to the current classification when selected, but retains its values when changing columns.
>
> I think there are many users (I know 3 of them in my company) that create multiple maps with the same classification, so an update would be very welcome :)
>
> Tammo Jan
>
> -----Oorspronkelijk bericht-----
> Van: Nathan Woodrow [mailto:madmanwoo at gmail.com]
> Verzonden: donderdag 16 augustus 2012 9:49
> Aan: Tammo Jan Dijkema
> CC: qgis-user at lists.osgeo.org
> Onderwerp: Re: [Qgis-user] Symbology: switch off automatic classification
>
> Hey Tammo,
>
> This is a feature as having to click classify each time when changing the values was confusing to users so I changed how it works a while ago.
>
> Currently there is no way to turn it off.  You could save out the qgis qml file and hand edit it to have the new column.
>
> - Nathan
>
> On Thu, Aug 16, 2012 at 5:21 PM, Tammo Jan Dijkema <dijkema at hypercube.nl> wrote:
>> I'm using qgis 1.8 to create graduated maps of multiple data columns.
>> For this, I use the new symbology implementation, with graduated
>> colors. I would like to use one classification for all columns.
>> Usually based on Jenks, and tweaked manually.
>>
>>
>>
>> In qgis 1.8, when changing the column which is used for the
>> classification, the classification is recomputed automatically. This
>> is inconvenient, because now I have to enter the ranges for the
>> classification for each map I want to make. I expected the
>> classification to only be recomputed when I press the button 'Classify'.
>>
>>
>> The workaround I have found is to create my classification, then
>> switch to old symbology, which retains the classifcation when I change the column.
>>
>>
>> Is this a bug or a feature? And if it's a feature, how can I switch it offf?
>>
>>
>>
>> Thanks for your reply.
>>
>>
>> Tammo Jan Dijkema
>>
>>
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