[Qgis-user] Redraw time

[Wolstan H M Dixie]

Thanks,

That's a useful comparison and I can try filtering. Unfortunately I 
don't have online access to the base data.

Wolstan


On 20/08/2018 10:28, Richard McDonnell wrote:
> Hi Wolstan,
> GGP GIS appears to be customised/out of the box, ready to deal OS Mastermap, it most likely has built in filters and tools to deal with this dataset efficiently.
>
> Qgis is an international Open Free GIS, which with a little patience and tweaking, can easily deal with National Vector based Datasets.
>
> We use the OSi (Ordnance Survey Ireland) PRIME2 Datasets (same type dataset as Mastermap) in the office and QGIS is quite happy to deal with this data.
> We use:
> 	Postgresql/PostGIS Database, to store the dataset with Geometry and feature Index's. These are then served via WMS, WFS (GeoServer) and direct connection to
> 	Database.
> 	Zoom based Filters in styling to reduce the amount of data being redrawn (You don’t need to see individual houses at 1:100,000 now do you)
> 	Rule Based Symbology, to further filter and style based on attribution
>
> Panning and zooming round Dublin takes less than a second to render at 5,000, 2500 and 1:1000 with maybe 2 seconds (Max) at 1:10,000.
> If I turned on all the layers and started panning round without the Filters and Styling, (or Geodatabase) I would also have large redraw times.
> Hope this helps,
> Regards,
>
> Richard.
>
>
> -----Original Message-----
> From: Qgis-user [mailto:qgis-user-bounces at lists.osgeo.org] On Behalf Of Wolstan H M Dixie
> Sent: 20 August 2018 10:04
> To: Nyall Dawson <nyall.dawson at gmail.com>
> Cc: qgis-user <qgis-user at lists.osgeo.org>
> Subject: Re: [Qgis-user] Redraw time
>
> A minor British GIS called GGP - standing for GeoGraphic Processor.
>
> So how fast is everyone else's redraw? Is it instantaneous or appreciable?
>
> Wolstan
>
>
> On 20/08/2018 00:08, Nyall Dawson wrote:
>> On Sun, 19 Aug 2018 at 03:22, Wolstan H M Dixie
>> <wolstan-dixie at hotmail.co.uk> wrote:
>>> Hi all,
>>>
>>> I am a new user so please be understanding! I am shocked by the
>>> redraw time of a map view. When, for instance, I just pan the map a
>>> little, it takes 10 seconds to redraw [British OS Mastermap vector
>>> data, 64 bit desktop Windows 7]. My previous GIS was so fast it was
>>> essentially instantaneous, and was like dragging a paper map. Is this
>>> normal or are there tweaks I haven't appreciated?
>> What was your previous GIS?
>>
>> Nyall
>>
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