On May 27, 6:03 am, Jack Berberette <[email protected]> wrote: > > is it posible to tile the imagery so not matter what area you > wanted to look at you could see the cloud cover? >
the help file says you can select Google Mercator map projection (EPSG: 900913), but I only got blank images when I tried that option. Since the JPG files are small, it might be ok to use the Ground Overlay with a 50% extended border around the image, and then update the image whenever the zoom changes or the user pans outside this area. http://nowcoast.noaa.gov/help/mapservices.shtml?name=mapservices WMS Map Projections & Spatial Reference Systems (SRS) The WMS standard requires that every request must include the "SRS" parameter, which specifies the identifier of the desired Spatial Reference System (projection) of the requested map image. In addition to the standard geographic projections, nowCOAST map services allow requests to be made in the Web Mercator projection, which is used by many popular online mapping services such as Microsoft Bing and Google Maps. When overlaying nowCOAST data with Google Maps or Microsoft Bing imagery, it is recommended to use either the "EPSG:102113" or "EPSG: 900913" SRS values in your requests. Otherwise, the most commonly used projections are NAD83 and WGS84. SRS values can be specified in a WMS request by including "&SRS=IDENTIFIER" in the target WMS URL, where "IDENTIFIER" is replaced with one of the supported SRS Identifier values, listed below: EPSG:4267 North American Datum of 1927 (NAD 27) EPSG:4269 North American Datum of 1983 (NAD 83) EPSG:4326 World Geodetic System 1984 (WGS 84) EPSG:102113 Web Mercator (ESRI Identifier) EPSG:900913 Web Mercator (Google Identifier) -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" 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-js-api-v3?hl=en.
