Re: OpenDroneMap-users Digest, Vol 13, Issue 2

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Re: OpenDroneMap-users Digest, Vol 13, Issue 2

Cezar Popescu
Thank you for your explanation. I will try your solution as soon as my server finishes its current tasks, probably 2 or 3 days.
I will let you know how things went.
c

2016-02-24 22:00 GMT+02:00 <[hidden email]>:
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Today's Topics:

   1. Re: gdal problem (Stephen Mather)
   2. Re: gdal problem (Stephen Mather)


----------------------------------------------------------------------

Message: 1
Date: Tue, 23 Feb 2016 21:38:19 -0500
From: Stephen Mather <[hidden email]>
To: Cezar Popescu <[hidden email]>
Cc: opendronemap-users <[hidden email]>
Subject: Re: [OpenDroneMap-users] gdal problem
Message-ID:
        <[hidden email]>
Content-Type: text/plain; charset="utf-8"

Hi Cezar,

Your gaps are caused by not mosaicking the sets of images before running
them through gdal2tiles. You'd need to use gdalmerge prior to gdal2tiles
and be sure to set your no-data value in order to set the overlap rule.
Otherwise what you get is the transparent values in one mosaic overwrite
the values in the images below.

Hope this helps,
Best,
Steve




On Mon, Feb 8, 2016 at 5:19 PM, Cezar Popescu <[hidden email]>
wrote:

> Hello guys and i am happy to meet you all. I am aware that my problem it
> is not strictly tied to ODM but i am kindda new to this field and you are
> the only ones i know and i could ask for help. So, if someone has a little
> time to have a look to my problem and give me a solution i'd be very
> content.
>
> Now, i´ve generated some georeferenced png + kml from a bunch of geotagged
> jpegs. After that i´ve run a gdalbuildvrt and gdal2tiles on that vrt file.
> The problem is the generated tiles have huge gaps that are not present in
> the original pngs.
>
> I´ve uploaded the original png+kml, vrt and the generated tiles (763.8MB)
> here: http://s.go.ro/w9712i40 | password: 806217
>
> Also, if you are curious, all the files (original jpegs) are uploaded
> here: http://s.go.ro/8vl2v1nr | password: 421405
>
> If i load each individual png in google earth, the gaps are not present as
> you can see in this printscreen http://s.go.ro/4bzls9qw
>
> I hope someone will see why the ugly tiles happens and what is the
> workaround. Thank you very much for your time :)
>
> ps> i am sorry about the password, it is automatically enforced by that
> storage system, nothing i can do about it.
>
> --
> *Cezar Popescu*
> <a href="tel:%28%2B40%29%20723.178-176" value="+40723178176">(+40) 723.178-176
> My website: Atelierele Albe <http://atelierelealbe.eu>
> In my spare time i do Costică Acsinte <http://colectiacosticaacsinte.eu>
>
> _______________________________________________
> OpenDroneMap-users mailing list
> [hidden email]
> http://lists.osgeo.org/mailman/listinfo/opendronemap-users
>
>
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------------------------------

Message: 2
Date: Tue, 23 Feb 2016 21:42:58 -0500
From: Stephen Mather <[hidden email]>
To: Cezar Popescu <[hidden email]>
Cc: opendronemap-users <[hidden email]>
Subject: Re: [OpenDroneMap-users] gdal problem
Message-ID:
        <CAPkJWLX=B6CB0ZOju4-x=mTTMrArs1E_Tshf=[hidden email]>
Content-Type: text/plain; charset="utf-8"

Hi Cezar,

Your gaps are caused by not mosaicking the sets of images before running
them through gdal2tiles. You'd need to use gdalmerge prior to gdal2tiles
and be sure to set your no-data value in order to set the overlap rule.
Otherwise what you get is the transparent values in one mosaic overwrite
the values in the images below.

Hope this helps,
Best,
Steve




On Mon, Feb 8, 2016 at 5:19 PM, Cezar Popescu <[hidden email]>
wrote:

> Hello guys and i am happy to meet you all. I am aware that my problem it
> is not strictly tied to ODM but i am kindda new to this field and you are
> the only ones i know and i could ask for help. So, if someone has a little
> time to have a look to my problem and give me a solution i'd be very
> content.
>
> Now, i´ve generated some georeferenced png + kml from a bunch of geotagged
> jpegs. After that i´ve run a gdalbuildvrt and gdal2tiles on that vrt file.
> The problem is the generated tiles have huge gaps that are not present in
> the original pngs.
>
> I´ve uploaded the original png+kml, vrt and the generated tiles (763.8MB)
> here: http://s.go.ro/w9712i40 | password: 806217
>
> Also, if you are curious, all the files (original jpegs) are uploaded
> here: http://s.go.ro/8vl2v1nr | password: 421405
>
> If i load each individual png in google earth, the gaps are not present as
> you can see in this printscreen http://s.go.ro/4bzls9qw
>
> I hope someone will see why the ugly tiles happens and what is the
> workaround. Thank you very much for your time :)
>
> ps> i am sorry about the password, it is automatically enforced by that
> storage system, nothing i can do about it.
>
> --
> *Cezar Popescu*
> <a href="tel:%28%2B40%29%20723.178-176" value="+40723178176">(+40) 723.178-176
> My website: Atelierele Albe <http://atelierelealbe.eu>
> In my spare time i do Costică Acsinte <http://colectiacosticaacsinte.eu>
>
> _______________________________________________
> OpenDroneMap-users mailing list
> [hidden email]
> http://lists.osgeo.org/mailman/listinfo/opendronemap-users
>
>
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------------------------------

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End of OpenDroneMap-users Digest, Vol 13, Issue 2
*************************************************



--
Cezar Popescu
(+40) 723.178-176
My website: Atelierele Albe
In my spare time i do Costică Acsinte

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