[Qgis-developer] No Zoom to selected point

[Bernhard Ströbl]

ok, created a ticket [1]

Bernhard

[1] http://hub.qgis.org/issues/9160

Am 04.12.2013 08:52, schrieb Marco Hugentobler:
>  >Oh, you are right! But then, wouldn't it be sensible to have the
> program do that for me? Maybe zoom to a certain scale that is related to
> say the size of the bounding box of the
>  >layer? So the scale would be different for a layer containing global
> disaster points compared to one containing local addresses.
>
> Zoom to a scale related to the layer bbox sounds much better than
> zooming in a fixed factor.
>
> Marco
>
> On 04.12.2013 08:45, Bernhard Ströbl wrote:
>>
>>
>> Am 04.12.2013 08:38, schrieb Marco Hugentobler:
>>> >I have no means to see the particular point I selected and that is
>>> worse than "unconvenient".
>>>
>>> Of course you have. You know the point is in the middle of the screen,
>>> so you can manually zoom to it. It is just not convenient :-)
>>
>> Oh, you are right! But then, wouldn't it be sensible to have the
>> program do that for me? Maybe zoom to a certain scale that is related
>> to say the size of the bounding box of the layer? So the scale would
>> be different for a layer containing global disaster points compared to
>> one containing local addresses.
>>
>> Bernhard
>>>
>>> On 04.12.2013 08:19, Bernhard Ströbl wrote:
>>>> Hi Marco,
>>>>
>>>> of course it is undefined, but IMHO something should happen if you
>>>> click "zoom to selected". If I have a cloud of points and nothing
>>>> happens I have no means to see the particular point I selected and
>>>> that is worse than "unconvenient".
>>>> How does other GIS software handle this problem?
>>>>
>>>> Bernhard
>>>>
>>>> Am 04.12.2013 07:57, schrieb Marco Hugentobler:
>>>>> Hi Bernhard
>>>>>
>>>>> If one point is selected, it is somehow undefined how far to zoom in.
>>>>> Earlier behaviour was to just zoom in by a factor of two. This however
>>>>> is very unconvenient if you repeatedly select entries in the attribute
>>>>> table and click 'zoom to selected'.
>>>>>
>>>>> Regards,
>>>>> Marco
>>>>>
>>>>> On 04.12.2013 07:50, Bernhard Ströbl wrote:
>>>>>> Hi Gino,
>>>>>>
>>>>>> can you confirm what I described (_one_ point selected, does not
>>>>>> zoom)?
>>>>>>
>>>>>> I tried with f21562c on OpenSuse 64 bit.
>>>>>>
>>>>>> Bernhard
>>>>>>
>>>>>> Am 03.12.2013 18:01, schrieb Gino Pirelli:
>>>>>>> not confirmed in f21562c
>>>>>>> not confirmed in f1f2e16
>>>>>>>
>>>>>>>
>>>>>>> On 3 December 2013 16:40, Vincent Mora<vincent.mora at oslandia.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> I observed the same behavior (qgis master) with two points alligned
>>>>>>>> on x
>>>>>>>> (a very simple layer indeed).
>>>>>>>>
>>>>>>>>
>>>>>>>> On 02/12/2013 12:15, Bernhard Ströbl wrote:
>>>>>>>>
>>>>>>>>> Dear devs,
>>>>>>>>>
>>>>>>>>> today I stumbled on a strange behaviour when zoooming to a point.
>>>>>>>>> To reproduce: load a point layer, select one feature in the table
>>>>>>>>> and
>>>>>>>>> click "Zoom to selection". The result is the same as if clicking
>>>>>>>>> "Pan map
>>>>>>>>> to Selection", i.e the map is panned but not zoomed.
>>>>>>>>> I _think_ this is because the bounding box of the selected feature
>>>>>>>>> has a
>>>>>>>>> width and height of 0. Try iface.activeLayer().
>>>>>>>>> boundingBoxOfSelected().width()/.height() in the Python console.
>>>>>>>>> Geometrically speaking this is correct but as the zoom to selected
>>>>>>>>> function builds on a bounding box with width/height> 0 the outcome
>>>>>>>>> for the
>>>>>>>>> user is bad.
>>>>>>>>> My suggestion would be to define a small rectangle around the
>>>>>>>>> bounding
>>>>>>>>> boxes' center if it has size 0 in the zoomToSelected function.
>>>>>>>>>
>>>>>>>>> Tried with QGIS 2.0.1 and current master
>>>>>>>>>
>>>>>>>>> Shall I file a ticket for this?
>>>>>>>>>
>>>>>>>>> Bernhard
>>>>>>>>>
>>>>>>>>>
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