[Qgis-user] Show image time with Temporal Controller

[Frank Sokolic]

Hi,

Thanks for the tips everyone. I've added an expression to the Decoration 
Title that shows the date/time for each image in the format "2020-08-03 
14:00 UTC". This is the expression:

[% format_date((@animation_start_time + 
make_interval(hours:=(hour(@frame_duration) * 
@frame_number))),'yyyy-MM-dd HH:mm')%] UTC


There's probably a more efficient way of doing this but it works for me.

Frank.


On 2020/08/03 14:04, DelazJ wrote:
> Hi Frank
>
> Probably related: 
> http://osgeo-org.1560.x6.nabble.com/QGIS-Developer-How-to-get-animation-datetime-td5442097.html
>
> Regards,
> Harrissou
>
> Le lun. 3 août 2020 à 13:58, Frank Sokolic <sokolic at worldonline.co.za 
> <mailto:sokolic at worldonline.co.za>> a écrit :
>
>     Hi Charles,
>
>     The images are being loaded from a WMS-T service and so don't have
>     attributes. Is there any way of using an expression to get details
>     of the current image from the temporal controller or perhaps get
>     the WMS-T parameters being sent for each image in the sequence?
>
>     Frank.
>
>     On 2020/08/03 13:14, Charles Dixon-Paver wrote:
>>     Hi Frank, I haven't tested this, but wouldn't you be able to get
>>     this from the layer attributes that are configured in the
>>     temporal controller settings?
>>
>>     On Mon, 3 Aug 2020 at 13:07, Frank Sokolic
>>     <sokolic at worldonline.co.za <mailto:sokolic at worldonline.co.za>> wrote:
>>
>>         Hi,
>>
>>         I'm using the QGIS 3.14 Temporal Controller to step through a
>>         series of
>>         satellite images in 15 minute intervals and would like to
>>         show the
>>         date/time of each image as it appears on the map. There are
>>         variables
>>         for the start and end animation times (animation_start_time,
>>         animation_end_time) that I can use in my expression but can't
>>         see
>>         anything for the data/time of the current image. Does anyone
>>         know if
>>         such a variable exists?
>>
>>         Thanks, Frank.
>>
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