Re: [mapserver-users] [mapserver-dev] Paris code sprint - show of hands

[thomas bonfort]

I've started a list of topics that we could work on during this sprint
here: https://wiki.osgeo.org/wiki/Paris_Code_Sprint_2016_:_MapServer_Agenda

Please don't hesitate to update it if you're planning on coming and/or
participating

Cheers,
Thomas

On 14 January 2016 at 15:18, Daniel Morissette 
wrote:

> Hi MapServer devs,
>
> Could we have a show of hands of who from the MapServer (and GDAL/OGR)
> team are planning to be at the Paris Code Sprint [1] Feb 23-26?
>
> As you know, for me and many others the code sprint is as much about the
> networking as it is about the code, so it would help to ensure that we have
> a critical mass of committed people to help those (like me) who still
> haven't made final plans.
>
> Cheers
>
> --
> Daniel Morissette
> http://www.mapgears.com/
> T: +1 418-696-5056 #201
>
> http://evouala.com/ - Location Intelligence Made Easy
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Re: [mapserver-users] Rendering of Symbols outside map window

[mdprive]

Hi Patrick,

i've submitted a pull request for extending the map by a buffer and then 
clipping it, so that partial symbols on the edge get rendered as well (wms non 
tiled mode).

maybe you can build from sources and use this patch to solve your problem.

marco

--


Op 11 feb. 2016 om 21:54 heeft Ambrogio Foletti  het 
volgende geschreven:

> Hello Patrick,
> 
> if you are using PostGIS as datasource, I would solve the problem by 
> integrating a st_buffer in the DATA element itself ;) The added bonus is that 
> you will get the attribute values from a GetFeatureInfo (if implemented) in 
> the whole buffer zone.
> If not, you can try to use tile mode, and add some metabuffer (see mapserver 
> doc)
> 
> Cheers!
> A. Foletti
> 
> 2016-02-05 10:58 GMT+01:00 Patrick Meis :
>> Hallo,
>> 
>>  
>> 
>> i have stumbled on a problem.
>> 
>> I am simulating a buffering of point-data with the help of symbols, which I 
>> have set to
>> 
>> sizeunit = meters
>> 
>> size = 760
>> 
>>  
>> 
>> These rather big symbols disappear from my map when I zoom in and
>> 
>> the center point of the symbol is no longer inside the map window.
>> 
>> But a significant part of the symbol should still be displayed.
>> 
>>  
>> 
>> Is there any possibility of extending the rendered map, so that the symbols 
>> of my points
>> 
>> are still rendered even when they are outside my map window?
>> 
>>  
>> 
>> Greetz
>> 
>> Patrick
>> 
>> 
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Re: [mapserver-users] Rendering of Symbols outside map window

[Lime, Steve D (MNIT)]

This should already be happening. The drawing code traverses a layer's 
class/styles to commute a selection and clipping rectangle that is larger than 
the map extent.


From: mapserver-users [mapserver-users-boun...@lists.osgeo.org] on behalf of 
mdprive [deduikert...@xs4all.nl]
Sent: Friday, February 12, 2016 4:15 PM
To: Patrick Meis
Cc: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] Rendering of Symbols outside map window

Hi Patrick,

i've submitted a pull request for extending the map by a buffer and then 
clipping it, so that partial symbols on the edge get rendered as well (wms non 
tiled mode).

maybe you can build from sources and use this patch to solve your problem.

marco

--


Op 11 feb. 2016 om 21:54 heeft Ambrogio Foletti 
> het volgende geschreven:

Hello Patrick,

if you are using PostGIS as datasource, I would solve the problem by 
integrating a st_buffer in the DATA element itself ;) The added bonus is that 
you will get the attribute values from a GetFeatureInfo (if implemented) in the 
whole buffer zone.
If not, you can try to use tile mode, and add some metabuffer (see mapserver 
doc)

Cheers!
A. Foletti

2016-02-05 10:58 GMT+01:00 Patrick Meis 
>:
Hallo,

i have stumbled on a problem.
I am simulating a buffering of point-data with the help of symbols, which I 
have set to
sizeunit = meters
size = 760

These rather big symbols disappear from my map when I zoom in and
the center point of the symbol is no longer inside the map window.
But a significant part of the symbol should still be displayed.

Is there any possibility of extending the rendered map, so that the symbols of 
my points
are still rendered even when they are outside my map window?

Greetz
Patrick

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Re: [mapserver-users] Very poor WMS tiling performance with small area, ultra-high resolution image

[Stephen Woodbridge]

What is the file format? This has a huge impact on the memory and 
compute tile to extract a random bbox of pixels.


In some formats you have to extract the WHOLE image to grab any subset 
of pixels which could be your problem.


-Steve W

On 2/12/2016 5:28 PM, Avi Blackmore wrote:

Hello,

We've been using Mapserver as, among other things, a WMS server for some
time with satellite and aerial imagery, without problems.  We've been
able to serve imagery of resolutions down to .25 meters without any
significant performance hit.

Today, we got a sample image from a new source, which has a resolution
of 0.06 meters.  The image is 317 megabytes in size, and has dimensions
of 17538 x 19035 pixels.  The file size is smaller than many of the
Landsat or other images that we have displayed in the past.  However,
we're finding that rendering this image is extremely expensive.  In
particular, with tiled access, a la Google Maps, the WMS requests bog
down our server to the point where all of its memory is consumed.

I know that overviews, tiling, and such, are good strategies for
reducing the render time on a large area, reasonably high resolution
image.  But what would be good strategies for improving rendering time
on this smaller, ultra-high resolution image?
--
Avi Blackmore
Head Programmer/System Administrator
Satshot Inc.



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[mapserver-users] Very poor WMS tiling performance with small area, ultra-high resolution image

[Avi Blackmore]

Hello,

We've been using Mapserver as, among other things, a WMS server for 
some time with satellite and aerial imagery, without problems.  We've been able 
to serve imagery of resolutions down to .25 meters without any significant 
performance hit.

Today, we got a sample image from a new source, which has a resolution 
of 0.06 meters.  The image is 317 megabytes in size, and has dimensions of 
17538 x 19035 pixels.  The file size is smaller than many of the Landsat or 
other images that we have displayed in the past.  However, we're finding that 
rendering this image is extremely expensive.  In particular, with tiled access, 
a la Google Maps, the WMS requests bog down our server to the point where all 
of its memory is consumed.

I know that overviews, tiling, and such, are good strategies for 
reducing the render time on a large area, reasonably high resolution image.  
But what would be good strategies for improving rendering time on this smaller, 
ultra-high resolution image?
--
Avi Blackmore
Head Programmer/System Administrator
Satshot Inc.

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[mapserver-users] Adding a logo & attribution

[Brent Wood]

Hi,


What is the recommended way to add a logo & text attribution clause in the 
bottom right corner of a mapserver WMS service?


Thanks


Brent Wood

Programme leader: Environmental Information Delivery
NIWA
DDI:  +64 (4) 3860529


Brent Wood
Principal Technician - GIS and Spatial Data Management
Programme Leader - Environmental Information Delivery
+64-4-386-0529 | 301 Evans Bay Parade, Greta Point, Wellington | 
www.niwa.co.nz
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