WA DoT charts - digital raster or vector source?

[Zmtndoc]

Department of Transport charts are way more detailed than the Australian Hydrographic Service charts for the west coast of Western Australia.

You can download the PDFs for free but there is no apparent source for geo-referenced digital charts.

Memory Map list these in the package with all the Australian charts in raster form. But, in their proprietary format.

Anybody know of a source for geo-referenced WA DoT raster or vector charts that run in the excellent OpenCPN?

Tx!

[rgleason]

PDF to KAP
https://opencpn.org/wiki/dokuwiki/do...manual:pdf2kap

[cagney]

Originally Posted by rgleason

PDF to KAP
https://opencpn.org/wiki/dokuwiki/do...manual:pdf2kap

That seems very complicated..... On any Unix/Linux system just use "convert" followed by "imgkap" together with a header file, that you have to write yourself.
However, that's not the point. If I understand the license correctly, you can only convert these pdf's for your personal use and are not allowed to distribute them.
So I can't see good answer for "Zmtndoc".
Perhaps a bit of lobbying with the WA politicians, to encourage them to follow the example from New Zealand and US, would help??

Thomas

[bcn]

We are talking to the AHS since some weeks and all this is frankly speaking very complicated in Australia. No practical or at arms length approach. On a world wide comparison.

That the department of Transport is issuing charts too was a discovering from this thread.

Hubert

[Zmtndoc]

Yes, Hubert.

My discovery of the WA DoT charts arose when I realized how hopeless the vector Australian Hydrographic Service charts were along the west coast from Gregory to Perth.

I pay good sums of money for these AHS s63 charts.

By comparison, the WA DoT have most of this coast in detailed 1:25000 charts, as PDFs. No option for obtaining these as geo-referenced vector or raster versions if I am looking in the right places.

Seems the AHS have abdicated the charting to the WA DoT.

[bcn]

Some Aussie here who knows about the intrinsics of the Australian administrations?

Use my contacts from the profile if this seems more appropriate ...

Hubert

[nohal]

BTW, I have just extended imgkap a little bit so that the hypothetical calibrated charts would now be created simply by something like

convert -density 150 DMH329_green_islands.pdf -quality 100 DMH329_green_islands.png
imgkap DMH329_green_islands.png 30d31m54sS 115d00m48sE "253;341" 30d42m18sS 115d09m18sE "3461;4879" -r "253;341-3461;4879" -d AGD66 -j "TRANSVERSE MERCATOR" DMH329_green_islands.kap

As actually creating them would likely violate the DoT license, I of course did not run those commands

Pavel

[sailorF54]

It looks as if Navionics charts are based on those DoT charts (see pics)
Now, it is possible to use SASPlanet to automatically download the whole western Australian coast at suitable scales (e.g. z17 and z14), then use the (paying) version of MAPC2MAPC
cando
to automatically create .kap charts that O can read...
I've done it (for other parts of the world) and can vouch that it works...

[Zmtndoc]

Good suggestion,

Try the Russians for a fix.

There has been intermittent question about Navionics along the WA coast tho' the latest WA Cruising Guide 5th Ed does not mention it.

Eyeballs rule!

Certainly, in sections such as the approaches to Hillarys Boat Harbour just north of Perth, Navionics has way more detail than the AHS charting.

Navionics and iSailor on our iPad have most of the detail compared to the DoT charts. Tho' not all.

Jeff

[Rasbats]

SASPlanet can save as a GeoTiff (WGS84). My PhotoLayer_pi can open the GT and you should then be able to export to KAP.

Mike

[Zmtndoc]

Tx Mike,

I have used SASPlanet within GE2KAP to create KAPs directly, incl. the N... charting we are describing.

I hope that Paul Higgins excellent program still works.

Jeff.

[Zmtndoc]

Thanks all for the options, fellas.

I did geo-reference the PDFs in a number of ways but struggled to get them perfectly calibrated.

It appears that the WA DoT did release geo-referenced digital charts at one time but, on enquiry, they stated this was no longer a provided service.

So, I then used SASPlanet to capture the Navionics charts from the Navionics website, as suggested by sailorF54. Thank you! Running SASP within GE2KAP they saved as geo-referenced kaps.

Where the WA DoT large-scale charts gave good detail then that appears in the Navionics charts. Presumably they have incorporated the WA survey data. And, geo-referencing the Navionics charts around Hillarys Boat Harbour against Google Earth and ArcGIS - the calibration appears perfect.

Better than my attempts at geo-referencing. And, a lot less pains-taking.