Map sheet vector files - NZMG, NZMS1, etc

[tomtomnz]

Hi Guys

Wondering if anyone here can point me towards an authoritative source
for older map sheet vector files - specifically the NZMG and NZMS1
series.

Thanks very much.
Tom

[Robert Coup]

Hi Tom,

On Tue, Aug 30, 2011 at 8:19 AM, tomtomnz <tomg...@gmail.com> wrote:

Wondering if anyone here can point me towards an authoritative source
for older map sheet vector files - specifically the NZMG and NZMS1
series.

NZMG/NZMS260 series: http://koordinates.com/layer/3-nz260-map-sheet-index/

NZTM/Topo50: http://data.linz.govt.nz/layer/295-nz-mainland-topo-50-map-sheets/

Kim Ollivier is on this list, if you're after other/older sheetlines maybe he can make them available?

Cheers,

Rob :)

[tomtomnz]

Thanks Rob. Much appreciated.

On Aug 30, 9:40 am, Robert Coup <robert.c...@gmail.com> wrote:
> Hi Tom,
>

[blacksand.aotearoa]

Hi there,
the below index files are great, but there's not yet one for the NZMS1
series. I've started working on one (well, two actually; there's an NI
grid and a SI grid for NZMS1s...) just based on the NZMS1s I have easy
to hand, though haven't added in those I have rolled up in tubes,
buried deep in boxes etc...

LINZ have an online converter, so it's pretty much as easy as putting
in the corner grid coordinates from NZMS1s, then sussing out how the
online converter wants the input formatted, then it'll spit out the
equivalent coordinates for NZMG/ NZTM. That spits out a whole lot of
points & it's easy to build a polygon layer from that. Just using QGIS
at home.

starts a little bit like this:
'N003-004',18000,940000
'N003-004',70000,940000
'N003-004',18000,909800
'N003-004',70000,909800

and comes out a bit like this (last two rows are NZMG I think):
'N003-004',18000.0000,940000.0000,2482780.4350,6742811.1679
'N003-004',70000.0000,940000.0000,2530278.6105,6741490.4013
'N003-004',18000.0000,909800.0000,2482009.2545,6715226.1051
'N003-004',70000.0000,909800.0000,2529512.8286,6713901.0437

Most sheets can be covered by choosing one corner, say top right, in
the above sheet all corners were unique to it. There may be a more
elegant way of doing it, but defining a custom projection in QGIS was
a bit beyond me! ACtually, North Island and South Island Yard Grids
eemed to be in there, but darned if I could figure a way of putting
them straight in... I did find at least one point that wasn't able to
be converted by the LINZ service, at the extreme east.

If there was interest I could pop what I've done so far up onto a
google doc spreadsheet for others to add to/ modify? Or any other
online collaborative tool if preferred?

I'd pretty much just been swapping between .csv and shapefiles. I
think DNRGarmin was helpful in the mix too.

Most of the maps I'm missing are easy to infer the eastings/ northings
for, it's just the coastal sheets that have more unshared corners.

Bernard

On Aug 30, 10:40 am, Robert Coup <robert.c...@gmail.com> wrote:
> Hi Tom,
>

[Robert Coup]

Hi again,

On Sat, Oct 15, 2011 at 2:46 PM, blacksand.aotearoa <blacksand...@gmail.com> wrote:

Hi there,
the below index files are great, but there's not yet one for the NZMS1
series. I've started working on one (well, two actually; there's an NI
grid and a SI grid for NZMS1s...) just based on the NZMS1s I have easy
to hand, though haven't added in those I have rolled up in tubes,
buried deep in boxes etc...

Kim Ollivier has published some grid lines for the North and South Island Yard Grids, which are available for download at:

http://koordinates.com/layer/3977-nz-south-island-yard-grid/

http://koordinates.com/layer/3976-nz-north-island-yard-grid/ 

Hope that helps a bit,

Rob :)