[mapserver-users] layer mask without clipping

2014-02-25 Thread Lars Lingner
Hello,

I really like the MapServer layer mask feature. Is there a way that
MapServer doesn't clip the mask, instead just setting a opacitiy / color
value?

I'm getting the result by rendering two passes with mask and inverted
mask. The latter is using a white opacity layer on top. Afterwards I can
stack the images together.
The is working well, as long as there are no labels rendered along the
mask boundary. If they are, then they are not clipped.

Best wishes,

Lars
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Re: [mapserver-users] layer mask without clipping

2014-02-25 Thread thomas bonfort
Lars,
I don't understand what you're trying to obtain. Can you clarify
and/or post a couple screenshots?

--
thomas

On 25 February 2014 09:58, Lars Lingner gislars+l...@googlemail.com wrote:
 Hello,

 I really like the MapServer layer mask feature. Is there a way that
 MapServer doesn't clip the mask, instead just setting a opacitiy / color
 value?

 I'm getting the result by rendering two passes with mask and inverted
 mask. The latter is using a white opacity layer on top. Afterwards I can
 stack the images together.
 The is working well, as long as there are no labels rendered along the
 mask boundary. If they are, then they are not clipped.

 Best wishes,

 Lars
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Re: [mapserver-users] layer mask without clipping

2014-02-25 Thread Rahkonen Jukka (Tike)
I think that masked areas would simply appear semi-transparent, not totally 
hidden.

-Jukka Rahkonen-

thomas bonfort wrote:
 
 Lars,
 I don't understand what you're trying to obtain. Can you clarify and/or post a
 couple screenshots?
 
 --
 thomas
 
 On 25 February 2014 09:58, Lars Lingner gislars+l...@googlemail.com wrote:
  Hello,
 
  I really like the MapServer layer mask feature. Is there a way that
  MapServer doesn't clip the mask, instead just setting a opacitiy /
  color value?
 
  I'm getting the result by rendering two passes with mask and inverted
  mask. The latter is using a white opacity layer on top. Afterwards I
  can stack the images together.
  The is working well, as long as there are no labels rendered along the
  mask boundary. If they are, then they are not clipped.
 
  Best wishes,
 
  Lars
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Re: [mapserver-users] WMS image display

2014-02-25 Thread Lime, Steve D (MNIT)
That's a weird one. It kinda sounds like a data issue for that certain area 
more than a mapserver issue. I mean, if there was something funky going on with 
image size and scale computation I'd expect all images at that zoom level and 
image size to be blank, not just one. I'd recommend further isolating the 
particular set of imagery for further debugging. How are your images organized?

Steve


From: mapserver-users-boun...@lists.osgeo.org 
[mapserver-users-boun...@lists.osgeo.org] on behalf of Dash 
[jim...@co.clackamas.or.us]
Sent: Monday, February 24, 2014 1:11 PM
To: mapserver-users@lists.osgeo.org
Subject: [mapserver-users] WMS image display

Hey folks, I am experiencing something rather strange when trying to
displaying imagery.  We have developed several in-house applications that
display aerial photography at different scales.  However, it appears that
one location within the imagery does not display until we change the width
and height of the imagery within the wms request.  For example, we are
returning the image using a width of 298 x 237.  When I run a straight wms
request with the provided width and height the image is blank.  If I change
the width and height to something like 400 x 300 the image displays.  I've
checked the mapfile and even turned off the scale dependencies.  We rebuilt
the image index and still it did not help.  I'm kind of stumped on what to
try next.  Any suggestions would be greatly appreciated.

I've made sure to run a GetCapabilities to make confirm that the formatting
was correct and that the mapfile contained no errors.

Thanks.



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[mapserver-users] GeoMOOSE

2014-02-25 Thread jcwalz
In GeoMOOSE I would like to create a folder in the catalog section. This
folder would not contain any data layers, it would just connect to multiple
html documents that connect to PDFs and jpeg images. Is this possible to do?



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Re: [mapserver-users] GeoMOOSE

2014-02-25 Thread Dan Little
(This might be a double post, I forgot my Gmail is not subscribed...)

This isn't really the right list for this (try GeoMOOSE Users).

But, since I'm here, I can answer the question: No, the current
catalog doesn't support that kind of reference.  I don't think it
would be that hard to add an enhancement that can handle such tasks
but we'd need to add code to the base.

If it's something you really need in the short term then I'm always
available for GeoMOOSE contracts big and small.

If it's something you can wait on then please add an enhancement
request to our github issues repository:
https://github.com/geomoose/geomoose/issues/new

On Tue, Feb 25, 2014 at 9:12 AM, Dan Little theduckylit...@gmail.com wrote:
 This isn't really the right list for this (try GeoMOOSE Users).

 But, since I'm here, I can answer the question: No, the current
 catalog doesn't support that kind of reference.  I don't think it
 would be that hard to add an enhancement that can handle such tasks
 but we'd need to add code to the base.

 If it's something you really need in the short term then I'm always
 available for GeoMOOSE contracts big and small.

 If it's something you can wait on then please add an enhancement
 request to our github issues repository:
 https://github.com/geomoose/geomoose/issues/new



 On Tue, Feb 25, 2014 at 9:06 AM, jcwalz jennaw...@co.stevens.mn.us wrote:
 In GeoMOOSE I would like to create a folder in the catalog section. This
 folder would not contain any data layers, it would just connect to multiple
 html documents that connect to PDFs and jpeg images. Is this possible to do?



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Re: [mapserver-users] WMS image display

2014-02-25 Thread Dash
Thanks for the response.  The images are in a tif format and we used GDAL to
create the tiling index (gdaltindex command).  We ran the gdalinfo command
against the imagery and nothing out of the ordinary stands out.  The size of
the tile that is giving us trouble is 5471, 5457.  The tile to the west has
a size of 5429, 5400 and the tile to the east has a size of 5489, 5456. 
Could this cause an issue?  The metadata and  image structure metadata is
all the same.

We are thinking of manipulating the shapefile index that gdaltindex created. 
Possibly changing the location attribute to access a different tile for
testing.

I'm not really sure what else to try. 

Thanks.




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Re: [mapserver-users] WMS image display

2014-02-25 Thread thomas bonfort
Do your tiffs have overviews? Changing the image size affects the map
scale and thus potentially which overview is being used...

--
thomas

On 25 February 2014 16:52, Dash jim...@co.clackamas.or.us wrote:
 Thanks for the response.  The images are in a tif format and we used GDAL to
 create the tiling index (gdaltindex command).  We ran the gdalinfo command
 against the imagery and nothing out of the ordinary stands out.  The size of
 the tile that is giving us trouble is 5471, 5457.  The tile to the west has
 a size of 5429, 5400 and the tile to the east has a size of 5489, 5456.
 Could this cause an issue?  The metadata and  image structure metadata is
 all the same.

 We are thinking of manipulating the shapefile index that gdaltindex created.
 Possibly changing the location attribute to access a different tile for
 testing.

 I'm not really sure what else to try.

 Thanks.




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Re: [mapserver-users] WMS image display

2014-02-25 Thread Dash
Our tiff images do not have overviews.  We are thinking that something may
have happened during the transfer of the image from our Windows machine to
Linux machine.  I highly doubt this is the case but it's worth a shot.

I was just reading about creating overviews.  It seems this would increase
the amount of disk space needed but would it actually increase application
performance?  What is the difference between overviews and creating a tile
index using gdal?

Thanks.



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Re: [mapserver-users] WMS image display

2014-02-25 Thread Rahkonen Jukka (Tike)
Hi,

Overviews help at small scales. Let's assume that you have orthophotos with 1 
meter native pixel size. If you want to show a 10x10 km area in a 500x500 pixel 
sized box in your application, it means that the pixel size of the output it 20 
m. It is heavy to read 1x1 native pixels and resample those but if 
there happens to be readily available overviews with 2-4-8-16 m pixel sizes you 
can pick the 16 m pixels and use them for final resampling. 

Tile index is used for finding the right image file at some geographic area. 
And finally internal tiling of image files help at big scales, when you want to 
draw 500x500 m area in the 500x500 pixel sized box. If you have tiled tiff 
files it is possible to pick a handful of 256x256 pixel tiles from the middle 
of the image file. If you have a 1x1 pixel sized png file you must 
decompress all the 100 million pixels before you can pick the 250 thousand that 
you really need.

The key is to read as little extra pixels as possible, and therefore you need 
all three: internal tiling, overviews, and tileindes. Actually for country wide 
service even a fourth one: on overview image that covers the whole country with 
much bigger pixel size so you do not need to open hundreds of images from the 
tileindex for picking only a few pixels from each.

-Jukka Rahkonen-


Dash wrote:

 Our tiff images do not have overviews.  We are thinking that something may
have happened during the transfer of the image from our Windows machine to
Linux machine.  I highly doubt this is the case but it's worth a shot.

 I was just reading about creating overviews.  It seems this would increase
the amount of disk space needed but would it actually increase application
performance?  What is the difference between overviews and creating a tile
index using gdal?

Thanks.



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[mapserver-users] Upgrading to 6.4.x

2014-02-25 Thread Basques, Bob (CI-StPaul)
All,

Has anyone experienced a problem with MapServer not drawing short segments 
correct in the newer versions?  I have a V5.4 that is outputting segmented 
lines (continuous but separate line segments) just fine.  But the V6.4 version 
is not drawing small (visually) line segments, and leaving gaps in the line.  
The problem seems to be related to some sort of pixel threshold, if I zoom in, 
the lines become visually longer, and they display correctly.

Am I explaining this correctly?

Thanks

Bobb



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Re: [mapserver-users] Upgrading to 6.4.x

2014-02-25 Thread Lime, Steve D (MNIT)
Can you post pics?

From: mapserver-users-boun...@lists.osgeo.org 
[mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Basques, Bob 
(CI-StPaul)
Sent: Tuesday, February 25, 2014 3:09 PM
To: mapserver-users@lists.osgeo.org
Subject: [mapserver-users] Upgrading to 6.4.x

All,

Has anyone experienced a problem with MapServer not drawing short segments 
correct in the newer versions?  I have a V5.4 that is outputting segmented 
lines (continuous but separate line segments) just fine.  But the V6.4 version 
is not drawing small (visually) line segments, and leaving gaps in the line.  
The problem seems to be related to some sort of pixel threshold, if I zoom in, 
the lines become visually longer, and they display correctly.

Am I explaining this correctly?

Thanks

Bobb



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Re: [mapserver-users] Upgrading to 6.4.x

2014-02-25 Thread Basques, Bob (CI-StPaul)
Steve,

I'll send something out tomorrow.  This is tied into the AVL, and all the 
trucks are now back to the yard and parked for the day.  :c)

You want a copy of the MAPFILE too, it's fairly short.

Thanks

Bobb



From: Lime, Steve D (MNIT)
Sent: Tuesday, February 25, 2014 5:14 PM
To: Basques, Bob (CI-StPaul); mapserver-users@lists.osgeo.org
Subject: RE: Upgrading to 6.4.x

Can you post pics?

From: 
mapserver-users-boun...@lists.osgeo.orgmailto:mapserver-users-boun...@lists.osgeo.org
 [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Basques, Bob 
(CI-StPaul)
Sent: Tuesday, February 25, 2014 3:09 PM
To: mapserver-users@lists.osgeo.orgmailto:mapserver-users@lists.osgeo.org
Subject: [mapserver-users] Upgrading to 6.4.x

All,

Has anyone experienced a problem with MapServer not drawing short segments 
correct in the newer versions?  I have a V5.4 that is outputting segmented 
lines (continuous but separate line segments) just fine.  But the V6.4 version 
is not drawing small (visually) line segments, and leaving gaps in the line.  
The problem seems to be related to some sort of pixel threshold, if I zoom in, 
the lines become visually longer, and they display correctly.

Am I explaining this correctly?

Thanks

Bobb



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