GeoPDF handling texts with doughnots wrong.

[olhansen]

I have a problem with the GeoPdf reading.
I am working in C#, and installed GDAL 2.4.2 as a nuget package.

I try to import a georeferenced PDF into PostGIS.

The problem is related to texts (see picture)

It looks like doughnuts are handle wrong. The text we look is really 136933
'6' and '9' has interior parts when drawn as polygons.

Please help. Any hint or assistance will be greatly appreciated.

I connect to PDF like this:

var dsInput = Ogr.Open(txtPdf.Text, 0);

[rouault]

I'm a bit confused. How did you generate this PNG file ? With gdal_translate ?
Please attach a PDF file that reproduces the issue

[olhansen]

Sorry, I tried using ogr2ogr and make a sqlite database,

ogr2ogr -f sqlite out.sqlite 20150203_Afvanding_revP.pdf

20150203_Afvanding_revP.pdf
I attach the pdf

[rouault]

ok, I reproduce the problem (levels_nsf___tekst layer). It is more general that the single instance pointed in the above description. It is likely related to the parsing of drawing instructions of polygons with holes such as a stroked 6 or 9

[olhansen]

Thanks for reproducing. Yes I agree. But it was easy to see there. Can anything be done to it? Also, when converting geopdf to vector, would it be possible to add layername and display parameteres like color as attributes in to the features?

…

On Tue, Oct 15, 2019 at 9:50 AM Even Rouault ***@***.***> wrote: ok, I reproduce the problem (levels_nsf___tekst layer). It is more general that the single instance pointed in the above description. It is likely related to the parsing of drawing instructions of polygons with holes such as a stroked 6 or 9 — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1932?email_source=notifications&email_token=AHZADKEOTXH5WYFIUK47AYLQOVY5PA5CNFSM4JAYNLI2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEBHZH4A#issuecomment-542086128>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHZADKHQYSHD2AIGJNWRIALQOVY5PANCNFSM4JAYNLIQ> .

-- Venlig hilsen Ove Lindholt Hansen GeoSite T: 40916223 A: Stenbrinken 8, DK8420 Knebel Nyhed: GIS4Mobile - ideelt til trafiksikkerhed og skilteregistrering, incl skilteikoner på kortet. Nyhed: DataSync <http://www.geosite.dk/datasync>kan anvendes til at holde dine GIS data ajourført. Nu også GeoDanmark 6.0. Og BBR data implementeres i juni.

[rouault]

Can anything be done to it?

Perhaps. Would require deeper investigation in GDAL source code.

[olhansen]

Thank you very much for helping. Can it be related this: *PDF_LIB*=[POPPLER/PODOFO/PDFIUM] Should I test with all 3? How do I set it in ogr2ogr and when connecting in C#? And is it available in the GDAL version I downloaded using nuget 2.3.1 from 22/6 2018?

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On Tue, Oct 15, 2019 at 10:38 AM Even Rouault ***@***.***> wrote: Can anything be done to it? Perhaps. Would require deeper investigation in GDAL source code. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1932?email_source=notifications&email_token=AHZADKHGQKUJJ2WQGBGZHP3QOV6RJA5CNFSM4JAYNLI2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEBH5VSI#issuecomment-542104265>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHZADKGWEVW62GWHMJ2LF6TQOV6RJANCNFSM4JAYNLIQ> .

-- Venlig hilsen Ove Lindholt Hansen GeoSite T: 40916223 A: Stenbrinken 8, DK8420 Knebel Nyhed: GIS4Mobile - ideelt til trafiksikkerhed og skilteregistrering, incl skilteikoner på kortet. Nyhed: DataSync <http://www.geosite.dk/datasync>kan anvendes til at holde dine GIS data ajourført. Nu også GeoDanmark 6.0. Og BBR data implementeres i juni.

[rouault]

Can it be related this:

No, this is purely in GDAL code. Switching PDF backend will have no effect for this

[olhansen]

Ok thanks - I struggled a lot with the library. Can you give me a hint how to get the sourcecode - I might be able to fix it myself. In Visual studio, C#

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On Tue, Oct 15, 2019 at 11:48 AM Even Rouault ***@***.***> wrote: Can it be related this: No, this is purely in GDAL code. Switching PDF backend will have no effect for this — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1932?email_source=notifications&email_token=AHZADKBTQPLN6JELM3H22KLQOWGVVA5CNFSM4JAYNLI2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEBIEOIY#issuecomment-542132003>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHZADKFZBPF62EXKILGIQQDQOWGVVANCNFSM4JAYNLIQ> .

-- Venlig hilsen Ove Lindholt Hansen GeoSite T: 40916223 A: Stenbrinken 8, DK8420 Knebel Nyhed: GIS4Mobile - ideelt til trafiksikkerhed og skilteregistrering, incl skilteikoner på kortet. Nyhed: DataSync <http://www.geosite.dk/datasync>kan anvendes til at holde dine GIS data ajourført. Nu også GeoDanmark 6.0. Og BBR data implementeres i juni.

[rouault]

somewhere in https://github.com/OSGeo/gdal/blob/master/gdal/frmts/pdf/pdfreadvectors.cpp#L577

[olhansen]

Thanks. But maybe even better - do you know if someone can be payed to give it attention?

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On Tue, Oct 15, 2019 at 2:13 PM Even Rouault ***@***.***> wrote: somewhere in https://github.com/OSGeo/gdal/blob/master/gdal/frmts/pdf/pdfreadvectors.cpp#L577 — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1932?email_source=notifications&email_token=AHZADKA4CW4HKKK35AH7AUTQOWXWRA5CNFSM4JAYNLI2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEBIQQ6Q#issuecomment-542181498>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHZADKHDI6GJOGESZBCWMSDQOWXWRANCNFSM4JAYNLIQ> .

-- Venlig hilsen Ove Lindholt Hansen GeoSite T: 40916223 A: Stenbrinken 8, DK8420 Knebel Nyhed: GIS4Mobile - ideelt til trafiksikkerhed og skilteregistrering, incl skilteikoner på kortet. Nyhed: DataSync <http://www.geosite.dk/datasync>kan anvendes til at holde dine GIS data ajourført. Nu også GeoDanmark 6.0. Og BBR data implementeres i juni.