You have NW, (lines 5 and 6), and you can calculate SE using lines 1 and 4. Widht of the image in pixels times line 1 gives you SE longitude. Height of the image in pixels times line 4 gives you SE latitude.
-- Marcelo - http://maps.forum.nu -- On Aug 6, 7:57 pm, Bajji <[email protected]> wrote: > Hi Andy, > > Can you explain how to get pointSW and pointNE using the gfw file. > > The file contents are: > > 0.017971305190311 > 0.000000000000000 > 0.000000000000000 > -0.017971305190311 > -127.620375523875420 > 50.406626367301044 > > The NWS website explains these fields to be: > > Line 1: x-dimension of a pixel in map units > Line 2: rotation parameter > Line 3: rotation parameter > Line 4: NEGATIVE of y-dimension of a pixel in map units > Line 5: x-coordinate of center of upper left pixel > Line 6: y-coordinate of center of upper left pixel > > It seems like I have point NW from lines 5 and 6 and not pointSW and > pointNE. > > I am also trying to overlay latest weather on my map and would very > much appreciate this help. > > Thanks > Balaji > > On Jul 30, 10:51 pm, Andrew Trice <[email protected]> wrote: > > > I don't know what "GoogleWeatherMaps" is, but you can use a ground > > overlay and show the national US radar available from NOAA on top of a > > regulargooglemap. > > > var groundOverlay = new GGroundOverlay( > > "http://radar.weather.gov/Conus/RadarImg/latest_radaronly.gif";, > > new GLatLngBounds(pointSW, pointNE)); > > > map.addOverlay(groundOverlay); > > > You can get various radar projections (with varying detail) > > athttp://radar.weather.gov/Conus/RadarImg/ > > > Also in that directory, you will see gfw files that can be use to > > calculate the SW and NE coordinates (US states and territories only) > > > -Andy > > > On Jul 10, 7:46 pm, Barry Hunter <[email protected]> wrote: > > > > What is "googleweathermaps" ? Never heard of it. > > > > You can embed a map using theGoogleMaps API, and you can overlay > > > data - for exampleweatherdata. But you will need to find a source > > > for that data, dont thinkGoogleprovide any API for it. > > > > Inputing a city or country and re centering the map is done with a > > > Geocoder. The API provides one. > > > > On 10/07/2009, Jyothi N <[email protected]> wrote: > > > > > Hi All, > > > > > Is is possible to embed googleweathermaps into site. > > > > Input will be city or country. displayweatherfor that region. Please > > > > help > > > > me. > > > > > Thanks, > > > > Jyothi > > > > -- > > > Barry > > > > -www.nearby.org.uk-www.geograph.org.uk- --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/Google-Maps-API?hl=en -~----------~----~----~----~------~----~------~--~---
![http://radar.weather.gov/Conus/RadarImg/latest_radaronly.gif"](https://radar.weather.gov/Conus/RadarImg/latest_radaronly.gif"){kind=link}