[Proj] cs2cs syntax help

Szilard Albert szilard at dayborogeo.com
Tue Oct 15 00:34:54 PDT 2013


Thanks heaps Nicholas,

my issue is now solved.
regards
Szilard



On 15 October 2013 17:06, nicolas david <ericnico.david at gmail.com> wrote:

> Re
>
> sorry send my previous message before ending
>
> so you have to tranform your cs2cs command from
> cs2cs +proj=latlong +datum=WGS84 +to  +proj=utm +zone=51 +datum=WGS84 -r
> to
> cs2cs +proj=latlong +datum=WGS84 +to  +proj=utm +zone=51 +south
> +datum=WGS84 -r
> or using epsg dictionnary
> cs2cs +init="EPSG:4326" +to  +init="EPSG:32751" -r
>
> Nicolas DAVID
>
>
> 2013/10/15 nicolas david <ericnico.david at gmail.com>
>
>> Hi Szilard
>>
>> concerning you first point "using the command properly"
>> a) first you have to use input telling if your coordinate are north/south
>> and east/west. so transform
>> 26d25'55" 126d15'04"  to 26d25'55"S 126d15'04"E
>> b) you need to specifie that you want UTM51 south and not utm51 north by
>> using the +south parameters
>> spatialreference.org is a very good ressource for finding this kind of
>> stuff : http://www.spatialreference.org/ref/epsg/32751/
>>
>> cs2cs +proj=latlong +datum=WGS84 +to  +proj=utm +zone=51 +datum=WGS84 -r
>>
>>
>>
>>
>> 2013/10/15 Szilard Albert <szilard.albert at gmail.com>
>>
>>> Dear list,
>>>
>>> very new to this, I have a question that might be very easily answered
>>> by someone familiar with cs2cs.
>>> I have the following Lat/Lon coordinates pair (few thousand pairs
>>> actually)
>>>
>>> 262555.03S 1261004.91E
>>> 261455.02S 1261504.90E
>>> 262555.03S 1261004.91E
>>> 265555.04S 1261404.93E
>>>
>>> with datum/spheroid/etc description as below. Zone 51, Australia.
>>>
>>>
>>>
>>> H1400 GEODETIC DATUM SURVEYED   WGS84       WGS84        6378137.000
>>> 298.2572229
>>> H1401 TRANSFORMATION PARAMETERS    0.0   0.0   0.0 0.000 0.000 0.000
>>> 0.0000000
>>> H1500 GEODETIC DATUM AS PLOTTED WGS84       WGS84        6378137.000
>>> 298.2572229
>>> H1501 TRANSFORMATION PARAMETERS    0.0   0.0   0.0 0.000 0.000 0.000
>>> 0.0000000
>>> H1600 DATUM SHIFTS                 0.0   0.0   0.0 0.000 0.000 0.000
>>> 0.0000000
>>> H1700 VERTICAL DATUM            N/A
>>> H1800 PROJECTION                GEODETIC
>>> H1900 ZONE                      N/A
>>> H2002 ANGULAR UNITS             1    DEGREES
>>> H2100 STANDARD PARALLELS          0 0 0.000N  0 0 0.000N
>>> H2200 CENTRAL MERIDIAN            0 0 0.000E
>>> H2301 GRID ORIGIN                 0 0 0.000N  0 0 0.000E
>>> H2302 GRID COORDINATES AT ORIGIN       0.00W       0.00S
>>>
>>>
>>> I need to transform these to XY coordinates.
>>>
>>> Using
>>>
>>> cs2cs +proj=latlong +datum=WGS84 +to  +proj=utm +zone=51 +datum=WGS84 -r
>>> <<EOF
>>> 26d25'55" 126d15'04"
>>> EOF
>>>
>>> I get
>>>
>>> 824270.31       2927618.51 0.00
>>>
>>>
>>> X looks OK, but for the Y values I am expecting values around 6,9xx,xxx
>>> ~ 7,0xx,xxx
>>>
>>> Would you please:
>>>
>>> 1. Point me towards using the command properly
>>> 2. Suggest best format of my text file for batch conversion. Can easily
>>> manipulate/separate columns, would prefer not to have to inset d, ', "
>>> symbols, but would be able if necessary.
>>>
>>> Thanks for your help,
>>> regards,
>>> Szilard
>>>
>>>
>>>
>>> _______________________________________________
>>> Proj mailing list
>>> Proj at lists.maptools.org
>>> http://lists.maptools.org/mailman/listinfo/proj
>>>
>>
>>
>
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