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<body class='hmmessage'>Does anyone have any experience/knowledge of how to create google map tiles using GrADS?<BR>
Im currently working on a project that will require this, and Im having trouble with creating accurate image tiles with GrADS, here are some issues...<BR>
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1) setting 'set mproj scaled' causes the entire plot area to be filled (this is desired/good, since I want ONLY the plot area visible in the output, and no gaps, no margins for axes, etc.), but calling 'printim' leaves a 1 pixel border/boundary around the image thats produced (this is not good, the images need to be seemless when placed alongside each other). is this '1 pixel gap' a limitation of printim or of how the plotting area gets filled when setting 'mproj scaled'?<BR>
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2) areas where my grid is undefined produce tiles with the GrADS built-in "ENTIRE GRID UNDEFINED" message in the middle. is there a way to avoid this message, or at least change the color of the font for this message, so that I can set that color to transparent in the resultant png image (through printim)?<BR>
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3)google mapping question: *if* anyone has experience with map tile creation for google maps, can you please point me in the direction of a reference on how to derive the correct lat&lon boundaries for each tile at a given zoom level? Apparently there is a specific equation/method necessary for finding the dimensions of each tile in the google maps mercator projection.<BR>
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Hope this question isnt too far off the topic of GrADS, but I do believe it is related, and any feedback might benefit others in future projects that also utilize google maps.<BR>
Thanks in advance,<BR>
P.Romero<BR><br /><hr />Want to do more with Windows Live? Learn “10 hidden secrets” from Jamie. <a href='http://windowslive.com/connect/post/jamiethomson.spaces.live.com-Blog-cns!550F681DAD532637!5295.entry?ocid=TXT_TAGLM_WL_domore_092008' target='_new'>Learn Now</a></body>
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