From bugzilla-daemon at bugzilla.maptools.org  Wed Feb 17 08:49:17 2010
From: bugzilla-daemon at bugzilla.maptools.org (bugzilla-daemon at bugzilla.maptools.org)
Date: Wed, 17 Feb 2010 08:49:17 -0500
Subject: [ka-Map-dev] [Bug 2160] New: metaLeft and metaTop in Tile.php
Message-ID: <bug-2160-230@http.bugzilla.maptools.org/>

http://bugzilla.maptools.org/show_bug.cgi?id=2160

           Summary: metaLeft and metaTop in Tile.php
           Product: ka-Map
           Version: 1.0
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: major
          Priority: P2
         Component: core
        AssignedTo: ka-map-dev at lists.maptools.org
        ReportedBy: quitomorales at gmail.com


Hi.
First, sorry for my english.

When tile.php is calculating the variable $metaLeft and $metaTop use the
function floor, but this function in PHP, use scientific notation, and the
script in kamap.js that calculate the same variable don't use scientific
notation.
For example

a=2400000
floor(a) in PHP 2.4E6
floor(a) in JS 2400000

so, when Kamap script search for the tile with top or left 2400000 is not found
because is recorded how 2.4E6.png

I add these lines to tile.php and tile_query.php after floor calculation

$metaLeft=number_format($metaLeft,0, '.', '');
$metaTop=number_format($metaTop,0, '.', '');

I hope you can understand.

Joaquin Morales

/* Calculate the metatile's top-left corner coordinates.
 * Include the $metaBuffer around the metatile to account for various
 * rendering issues happening around the edge of a map
 */
$metaLeft = floor( ($left)/($tileWidth*$metaWidth) ) * $tileWidth * $metaWidth;
$metaTop = floor( ($top)/($tileHeight*$metaHeight) ) * $tileHeight
*$metaHeight;

$metaLeft=number_format($metaLeft,0, '.', '');
$metaTop=number_format($metaTop,0, '.', '');

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