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visits member for 2 years
seen Aug 13 at 11:12

May
1
awarded  Popular Question
Jun
12
comment OpenLayers maxExtent
Hi Mapperz, Thanks for this, I forgot to mention that I'm actually cutting my own tiles up instead of using the OpenSpace tiles. I'm using maptiler to do this so I have different resolutions to OS.
Jun
12
asked OpenLayers maxExtent
Mar
26
accepted Openlayers ZoomOffset
Mar
26
answered Openlayers ZoomOffset
Mar
21
asked Openlayers ZoomOffset
Mar
19
comment Speed up OpenLayers TMS
Perfect thanks.
Mar
19
accepted Speed up OpenLayers TMS
Mar
19
asked Speed up OpenLayers TMS
Oct
8
awarded  Scholar
Oct
8
comment Convert X Y Pixels to Easting Northing
That's perfect! thank you.
Oct
8
accepted Convert X Y Pixels to Easting Northing
Oct
8
comment Convert X Y Pixels to Easting Northing
Right I've got a bit further but my Northing calculation is wrong: If I take Edinbourgh for example on the MiniScale image the x,y would be 3270, 6264. I'm then using the Worldfile data of: A: 100 B: 0 C: 0 D: -100 E: 50 F: 1299950 X = A * 3270 which is Edinburgh on the miniscale + B * 6264 which is Edinburgh on the miniscale + C This gives me X 327000 which seems correct I then do this calculation for Y: Y = D* 3270 which is Edinburgh on the miniscale + B * 6264 which is Edinburgh on the miniscale + F This givesme Y 1286150 which is not correct. Any ideas?
Oct
8
comment Convert X Y Pixels to Easting Northing
Thanks for your advice. I'm just using the free data provided by Ordnance Survey OpenData. At the moment i'm looking at the MiniScale tif file, I'm wanting to take the Easting and Northing data I've been given and plot this out on a the tif. I know its not quite as simple as just taking the easting and northing and converting this into the pixels of the image. As to start with the top left of the image would be 0,0 yet the grid would be 7000,13000. So i'm looking for a guide or formula that would convert the easting / northing to the pixel of the image.
Oct
7
awarded  Student
Oct
7
comment Convert X Y Pixels to Easting Northing
Hello, Thanks for getting back to me. Taking the Ordinance Survey Mini Scale tif for example this image is 7000 x 13000. Edinburgh is Easting 324995 (X) and Northing (Y) 674112. Now is I was to move the mouse over the x y of the image Edinburgh would be 3254, 6266. How do I get this x y pixel to compare the the 6 digit easting northing?
Oct
7
asked Convert X Y Pixels to Easting Northing