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| Read Geo-Referenced PDF https://forum.pdfsharp.net/viewtopic.php?f=2&t=4217 |
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| Author: | phunction [ Wed Dec 30, 2020 6:57 pm ] |
| Post subject: | Read Geo-Referenced PDF |
I am trying to extract the point data from a geo referenced PDF in C#. Will PDFSharp work? For example a PDF map exported for ESRI ArcMap. I can see some information in the PDF like this: <</Type/PROJCS/WKT(PROJCS["NAD_1983_BC_Environment_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]], PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",1000000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-126.0], PARAMETER["Standard_Parallel_1",50.0],PARAMETER["Standard_Parallel_2",58.5],PARAMETER["Latitude_Of_Origin",45.0],UNIT["Meter",1.0]])>>endobj 56 0 obj <</Type/Measure/Subtype/GEO/Bounds[0 1 0 0 1 0 1 1 ]/GPTS[50.63467 -120.10634 50.63738 -120.10599 50.63716 -120.10192 50.63446 -120.10227 ]/LPTS[0 1 0 0 1 0 1 1 ]/GCS 55 0 R>> endobj While I could probably get the above info parsing it myself, but I don't see any Point information for the Easting/Northing(long/lat) of the points so I have no idea how they are stored in the document and hope I can use PDFSharp to extract the info. [Edit: added line breaks in above snippent] |
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| Author: | TH-Soft [ Mon Jan 04, 2021 9:55 am ] |
| Post subject: | Re: Read Geo-Referenced PDF |
phunction wrote: [...] but I don't see any Point information for the Easting/Northing(long/lat) of the points [...] This should be one of the points: "50.63467 -120.10634"50° north, 120° east. |
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| Author: | phunction [ Tue Jan 05, 2021 1:02 am ] |
| Post subject: | Re: Read Geo-Referenced PDF |
Yes, that should be the points, but how do I extract them from the PDF? Does PDFSharp support that? |
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