-- Kevin Pfarr Senior Software Engineer Asynchrony Solutions, Inc. 1701 Washington Avenue Saint Louis, Missouri 63103 www.asolutions.com On 03/22/2012 11:33 AM, Don Dietrick wrote: > Hi Kevin, > > The problem is being introduced by the latitudes. These projections are > only valid between 85 and -85 degrees latitude. if you go to 90/-90, > things get all wonky. > > Hope this helps, > > - Don > > =-=-=-=-=-=-=-=-= > Don Dietrick > _at_dfdietrick > =-=-=-=-=-=-=-=-= > > On Thursday, March 22, 2012 at 9:19 AM, Kevin Pfarr wrote: > >> Ran into an issue with the MapTileLayer using a data set generated from >> GDAL. The TMSMapTileCoordinateTransform.getTileBoundsForProjection() is >> returning the following values; >> >> [28, 0, 2147483647, 4] >> >> The third parameter is causing a loop to take a long time looking up >> tiles. >> >> The parameters for getTileBoundsForProjection() are; >> >> upperLeft = LatLonPoint.Double[lat=90.0,lon=-179.99999564141046] >> lowerRight = LatLonPoint.Double[lat=-90.0,lon=179.64843314992333] >> zoomLevel = 2 >> >> So I'm not sure where the problem is but here are a few ideas. >> >> First; In the method latLonToTileUV() for lowerRight is returning >> Point2D.Double[3.996093701665815, -Infinity]. So is -Infinity wrong? >> >> Next; In getTileBoundsForProjection() where uvlr is processed, First >> Math.floor(-Infinity) returns -Infinity, then it is casted to an int, >> then subtract one resulting in Integer.MAX_VALUE. The causes the if >> check not to set it to 0. So are there missing parentheses; -Infinity - >> 1 then cast it to an int as below? >> >> int uvbottom = (int) (Math.floor(uvlr.getY()) - 1); >> >> Kevin >> >> -- >> Kevin Pfarr Senior Software Engineer >> >> Asynchrony Solutions, Inc. >> 1701 Washington Avenue >> Saint Louis, Missouri 63103 >> www.asolutions.com <http://www.asolutions.com> >> >> -- >> [To unsubscribe to this list send an email to "majdart_at_bbn.com >> <mailto:majdart_at_bbn.com>" >> with the following text in the BODY of the message "unsubscribe >> openmap-users"] > -- [To unsubscribe to this list send an email to "majdart_at_bbn.com" with the following text in the BODY of the message "unsubscribe openmap-users"]Received on Fri Mar 23 2012 - 08:35:25 EDT
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