Converting files of all sorts.

[Northeast]

Afternoon all.

I’ve got a specific question but also thought why not create a thread re: how to do this or a place we can put files and people might be kind enough to convert if they know how.

I’m wanting to convert the Bendigo Regional Park Prospecting map to kml so I can use it on Trilobite. The map comes as a PDF and a bit of Googling suggests it can be converted from PDF to kml. But, I don’t have Adobe Acrobat. I can download and use it on Avenza maps from their store but I would prefer to have the overlay open in Trilobite.

Would someone have Acrobat and the skills to convert this file please? Wouldn’t just be for me, anyone on the forum could then use it

Hopeful in advance

 

[Simmo]

Does this help ya mate?

 

[Northeast]

Hi Simmo.

Thanks, it sort of did. I emailed that to myself and could see it was a kmz file. I then saved it as a kml file, emailed it to myself, opened it on my phone in Trilobite and it said there were no saved features.

I then tried the whole process myself using mygeodata website to convert the PDF to kmz and then save as kml, email it - same result.

I don't really understand Vector and Raster but my guess is that a PDF is lacking the important bits that need to transfer through to kml. Although, the kmz file opens up quite well on Google Earth on my desk top so I don't know.

I will email David from Trilobite about it and if I get the answer I'll report back. And if I do eventually get a file that works on Trilobite I'll attach it in here.

Not sure if BrokeInBendigo has been on here in a long time, he was a whiz at all of this stuff.

Thanks for trying

 

[auriphile]

Afternoon all.

I’ve got a specific question but also thought why not create a thread re: how to do this or a place we can put files and people might be kind enough to convert if they know how.

I’m wanting to convert the Bendigo Regional Park Prospecting map to kml so I can use it on Trilobite. The map comes as a PDF and a bit of Googling suggests it can be converted from PDF to kml. But, I don’t have Adobe Acrobat. I can download and use it on Avenza maps from their store but I would prefer to have the overlay open in Trilobite.

Would someone have Acrobat and the skills to convert this file please? Wouldn’t just be for me, anyone on the forum could then use it

Hopeful in advance

Simmo's method will give you an KMLSUPEROVERLAY (opaque image overlay in Google Earth - pic attached). If you want to view a point in the image overlay - put a GE pin on the point and then hide the overlay to view the satellite image. If you want to use the boundaries create a polygon, and then hide the image overlay (pic attached). The polygon/s can then be exported as .KML files and used in your GPS on your phone. e.g. to ensure you stay within prospecting district boundaries while prospecting.
As an example I've created a polygon for one of the Maiden Creek areas (pics attached). It shows as a pink area (25% transparency) with a black border. I've attached the example .KML used (it's in a .ZIP archive).

Hope that helps.

 

[Hilux]

I've no idea what a kml file is but does this help?


https://www.google.com/search?client=firefox-b-d&q=PDF+to+kml

 

[Northeast]

If you want to use the boundaries create a polygon, and then hide the image overlay (pic attached). The polygon/s can then be exported as .KML files and used in your GPS on your phone. e.g. to ensure you stay within prospecting district boundaries while prospecting.

Thanks auriphile. Yes, I could create polygons for each seperate part of the park but then I would have to enable individual layers on Trilobite (turn it on, see if it is the right area, turn it off, try another one, etc).
For my WA trips each year I make those polygons in Google Earth, name them, shade them, etc and they work great on Trilobite. Good suggestion but just won't quite work for this application

Hilux - when I clicked on your link it took me through to a Google search with MyGeoData Cloud as the first option - I am guessing that is what you linked to? That is what I used in my attempt but didn't work. Thanks for trying though

I still haven't emailed David at Trilobite but will try to get time this arvo.

 

[grubstake]

Hilux - when I clicked on your link it took me through to a Google search with MyGeoData Cloud as the first option - I am guessing that is what you linked to? That is what I used in my attempt but didn't work. Thanks for trying though

That link also offers lots of other options for PDF - KML conversion, if the first one you tried doesn't work for you, another one might.

 

[auriphile]

Thanks auriphile. Yes, I could create polygons for each seperate part of the park but then I would have to enable individual layers on Trilobite (turn it on, see if it is the right area, turn it off, try another one, etc).
For my WA trips each year I make those polygons in Google Earth, name them, shade them, etc and they work great on Trilobite. Good suggestion but just won't quite work for this application

Hilux - when I clicked on your link it took me through to a Google search with MyGeoData Cloud as the first option - I am guessing that is what you linked to? That is what I used in my attempt but didn't work. Thanks for trying though

I still haven't emailed David at Trilobite but will try to get time this arvo.

I haven't tried Tribolite - I'll investigate. I use OSMTracker for creating maps, GetBackGPS and GoogleEarth for finding my way around. Does Tribolite allow you to keep your maps and travels private?
Cheers

 

[Northeast]

Does Tribolite allow you to keep your maps and travels private?

Yes, all private.


I got a response from David (see below) and it seems like the problem is that the PDF doesn't have the right data attached to it. But there must be a GeoPDF version available somewhere as the map works perfectly on Avenza maps (but that version is only allowed to be used with Avenza maps!). I'll do some more looking.



Hello,

I have tried opening the .pdf in QGIS and https://mygeodata.cloud/converter/pdf-to-geojson and neither system could determine which projection (if any) the PDF map is using. Therefore it does not seem to be a valid GeoPDF file and therefore cannot be converted to a .geojson file, which the Trilobite app can import as a data layer.

If you want to try any of this out yourself, import the VECTOR data.

 

[auriphile]

Yes, all private.


I got a response from David (see below) and it seems like the problem is that the PDF doesn't have the right data attached to it. But there must be a GeoPDF version available somewhere as the map works perfectly on Avenza maps (but that version is only allowed to be used with Avenza maps!). I'll do some more looking.



Hello,

I have tried opening the .pdf in QGIS and https://mygeodata.cloud/converter/pdf-to-geojson and neither system could determine which projection (if any) the PDF map is using. Therefore it does not seem to be a valid GeoPDF file and therefore cannot be converted to a .geojson file, which the Trilobite app can import as a data layer.

If you want to try any of this out yourself, import the VECTOR data.

I hope this helps - the file in question (from mygeodata.zip) is a valid Geospatial PDF. Somewhat understandably - it's a confusing subject (a standard that many software companies only loosely adhere to).

Here's the validated metadata, hopefully this will help David.

$ gdalinfo 15827-882a77c4bbbb15f3a194d5f5b2e276a1.pdf

Driver: PDF/Geospatial PDF
Files: 15827-882a77c4bbbb15f3a194d5f5b2e276a1.pdf
Size is 1754, 2480
Coordinate System is:
PROJCRS["GDA94 / Vicgrid",
    BASEGEOGCRS["GDA94",
        DATUM["Geocentric Datum of Australia 1994",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4283]],
    CONVERSION["Vicgrid",
        METHOD["Lambert Conic Conformal (2SP)",
            ID["EPSG",9802]],
        PARAMETER["Latitude of false origin",-37,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8821]],
        PARAMETER["Longitude of false origin",145,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8822]],
        PARAMETER["Latitude of 1st standard parallel",-36,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8823]],
        PARAMETER["Latitude of 2nd standard parallel",-38,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8824]],
        PARAMETER["Easting at false origin",2500000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8826]],
        PARAMETER["Northing at false origin",2500000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8827]]],
    CS[Cartesian,2],
        AXIS["(E)",east,
            ORDER[1],
            LENGTHUNIT["metre",1]],
        AXIS["(N)",north,
            ORDER[2],
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["State-wide spatial data management."],
        AREA["Australia - Victoria."],
        BBOX[-39.2,140.96,-33.98,150.04]],
    ID["EPSG",3111]]
Data axis to CRS axis mapping: 1,2
Origin = (2417318.803681706078351,2558558.468147914391011)
Pixel Size = (20.825344315531186,-20.828710677578197)
Metadata:
  CREATION_DATE=D:20140721085856+11'00'
  CREATOR=Adobe Illustrator CS6 (Windows)
  NEATLINE=POLYGON ((2432244.16560807 2529271.77564164,2440401.04945022 2541029.83693458,2432244.16560727 2541029.83693464,2440401.0494
5053 2529271.77564159,2432244.16560807 2529271.77564164))
  PRODUCER=Adobe PDF library 10.01
  TITLE=Bendigo_A3_Prospecting1213
Corner Coordinates:
Upper Left  ( 2417318.804, 2558558.468) (144d 4'38.58"E, 36d28' 7.08"S)
Lower Left  ( 2417318.804, 2506903.266) (144d 4'18.35"E, 36d56' 2.95"S)
Upper Right ( 2453846.458, 2558558.468) (144d29' 5.91"E, 36d28'16.03"S)
Lower Right ( 2453846.458, 2506903.266) (144d28'54.62"E, 36d56'11.95"S)
Center      ( 2435582.631, 2532730.867) (144d16'44.38"E, 36d42'10.15"S)
Band 1 Block=1754x1 Type=Byte, ColorInterp=Red
Band 2 Block=1754x1 Type=Byte, ColorInterp=Green
Band 3 Block=1754x1 Type=Byte, ColorInterp=Blue

Cheers

 

[Bidgee]

Attached is a geopdf of the region I converted in QGIS. Crappy resolution so dunno if its of any use. I'll see if I can improve the res. The CRS is EPSG:7844 - GDA2020