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git-svn-id: http://svn.openlayers.org/trunk/openlayers@1002 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
crschmidt
2006-07-24 12:37:23 +00:00
parent d87312cb49
commit d221e33ba6
1 changed files with 36 additions and 26 deletions
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62
examples/kamap.txt
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@@ -1,4 +1,16 @@
<?php
/*
This is a PHP file to be used as a backend for a ka-Map layer. It requires
PHP with Mapscript and libgd modules installed. The top of the file
is a configuration section: please edit the variables in this configuration
section to meet your needs, then rename this file to tile.php or something
similar and put it in a web accessible directory. More information
on the OpenLayers ka-Map layer is available from:
http://trac.openlayers.org/wiki/OpenLayers.Layer.KaMap
*/
/**********************************************************************
*
* $Id: tile.php,v 1.33 2006/02/07 03:19:55 pspencer Exp $
@@ -12,9 +24,7 @@
*
* modifications by Daniel Morissette (dmorissette@dmsolutions.ca)
*
* TODO:
*
* - remove debugging stuff (not really needed now)
* Modified by Christopher Schmidt for OpenLayers redistribution.
*
**********************************************************************
*
@@ -40,28 +50,6 @@
*
**********************************************************************/
/*
* the tile renderer accepts several parameters and returns a tile image from
* the cache, creating the tile only if necessary.
*
* all requests include the pixel location of the request at a certain scale
* and this script figures out the geographic location of the tile from the
* scale assuming that 0,0 in pixels is 0,0 in geographic units
*
* Request parameters are:
*
* map: the name of the map to use. This is handled by config.php.
*
* t: top pixel position
* l: left pixel position
* s: scale
* g: (optional) comma-delimited list of group names to draw
* layers: (optional) comma-delimited list of layers to draw
* force: optional. If set, force redraw of the meta tile. This was added to
* help with invalid images sometimes being generated.
* tileid: (optional) can be used instead of t+l to specify the tile coord.,
* useful in regenerating the cache
*/
/******************************************************************************
* basic system configuration
@@ -99,7 +87,7 @@ $szPHPGDModule = 'php_gd.'.PHP_SHLIB_SUFFIX;
* server, ultimately reducing performance.
*/
$tileWidth = 256;
$tileHeight =256;
$tileHeight = 256;
$metaWidth = 5;
$metaHeight = 5;
/* $metaBuffer = Buffer size in pixels to add around metatiles to avoid
@@ -276,6 +264,28 @@ if (!@is_dir($szMapCacheDir))
* also need to make sure inputs are clean, especially those used to
* build paths and filenames
*/
/*
* the tile renderer accepts several parameters and returns a tile image from
* the cache, creating the tile only if necessary.
*
* all requests include the pixel location of the request at a certain scale
* and this script figures out the geographic location of the tile from the
* scale assuming that 0,0 in pixels is 0,0 in geographic units
*
* Request parameters are:
*
* map: the name of the map to use. This is handled by config.php.
*
* t: top pixel position
* l: left pixel position
* s: scale
* g: (optional) comma-delimited list of group names to draw
* layers: (optional) comma-delimited list of layers to draw
* force: optional. If set, force redraw of the meta tile. This was added to
* help with invalid images sometimes being generated.
* tileid: (optional) can be used instead of t+l to specify the tile coord.,
* useful in regenerating the cache
*/
$top = isset( $_REQUEST['t'] ) ? intval($_REQUEST['t']) : 0;
$left = isset( $_REQUEST['l'] ) ? intval($_REQUEST['l']) : 0;