coordinates - Different results using JCoord and GeoTools -


i have been trying covert easting , northing values lat/lon using jcoord , geotools. problem getting different results each library using same easting & northing.

the code using code provided in main answer , geotools answer provided in question. convert latitude , longitude northing , easting in java?

the easting using : 393339

the northing using : 806179

the coordinates jcoord providing (57.14645296506957, -2.111698674790966)

the coordinates geotools providing [57.146449494619105, 2.111714868502565]

they seem lose accuracy around 4th digit , i'm wondering 1 right??

thanks

assuming these os eastings , northings (which seems based on lat/lon values) accurate 1m (as 6 figure grid references). based on values given this calculator degree of latitude around 100 km 4th decimal point 10m or accuracy can expect.

to more precision out of calculation need make sure of towgs84 parameters being used in each calculation - geotools can query projection find value, expect jcoord has similar operation.

note in geotools towgs parameter may vary depending on referencing factory using, believe gt-epsg-hsql more accurate gt-epsg-wkt.


Comments

Post a Comment

Popular posts from this blog

php - Wordpress website dashboard page or post editor content is not showing but front end data is showing properly -

Image
recently have uploaded wordpress site onto server. have uploaded wordpress site in sub-folder under root folder ../root(domain root folder)/wordpress (where host wordpress folder). now problem content data in page or post in dashboard of wordpress admin panel not showing - see image. but data showing in front view - see image. if not browser cache issue , not issue happened tinymce editor during upgrade; try add config file: define('concatenate_scripts', false);
Read more

javascript - Get parameter of GET request -

i make request: createxhrrequest( "get", fileurl, function( err, response ) { if( err ) { alert( "error get!" ); } alert(response); }); and full response: { "status" : "ok", "message" : "jvberi0xljqkjdduxdgkmy how can jvberi0xlj ? i try response.message , response["message"]. nothing works. just simple access this: var json = json.parse(response); json.message
Read more

javascript - Twitter Bootstrap - how to add some more margin between tooltip popup and element -

Image
i have not tryed since can't understand space between tooltip , element made/added bootstrap, tooltip near element triggers tooltip event. i make tooltip opening little bit away element, add more margin tooltip , eleemnt mean. i understand how in css if possible , if possible make both right,left,top,bottom tooltips hope question clear. this how tooltips looks on app: and , how should looks after this default css tooltip on top : .tooltip.top { padding: 5px 0; margin-top: -3px; } you can override in own css : .tooltip.top { margin-top: -10px; } note code work work tooltip on top, you'll nedd adapt css 3 other orientations : .tooltip.top { margin-top: -10px; } .tooltip.right { margin-left: 10px; } .tooltip.bottom { margin-top: 10px; } .tooltip.left { margin-left: -10px; }
Read more