Agreed with Andrea's comment.
Attached is an xml file with the definition of internal gridsets. The
900913 one has two more zoom levels defined.
Until it's released officially as an extension to the internally
definition you can just copy that xml snippet to your own
geowebcache.xml file and it will override the internal definition.
Hope that helps.
Gabriel
On Wed, Feb 1, 2012 at 12:35 PM, Manzoor Ahmad Mubashir
<[email protected]> wrote:
> Hi,
>
> I am using GeoServer version 2.1.3 to generate tiles from a shapefile which
> are then rendered by Google Maps API V3 in my application. I can see the
> output of the shapefile until zoom level 18 without any problem but nothing
> is shown after zoom level 19 and above. The tiles generated on the disk are
> empty (blank) so the problem at hand has nothing to do with Google Maps. I
> tried clearing the tiles cache and generated them again via seeding (from
> the GeoWebCache settings) but in vain. The tiles were again empty. What
> could be the wrong here? Is there any setting that I need to tweak for
> GeoServer to start generating tiles for and above zoom level 19? Please
> suggest.
>
> Mubashir
>
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--
Gabriel Roldan
OpenGeo - http://opengeo.org
Expert service straight from the developers.
<?xml version="1.0" encoding="utf-8"?>
<gwcConfiguration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://geowebcache.org/schema/1.3.0 http://geowebcache.org/schema/1.3.0/geowebcache.xsd"; xmlns="http://geowebcache.org/schema/1.3.0";>
<version>1.3.0</version>
<gridSets>
<gridSet>
<name>GlobalCRS84Pixel</name>
<description>This well-known scale set has been defined for global cartographic products. Rounded pixel sizes have been chosen for intuitive cartographic representation of raster data. Some values have been chosen to coincide with original pixel size of commonly used globalproducts like STRM (1" and 3"), GTOPO (30") or ETOPO (2' and 5'). Scale denominatorand approximated pixel size in meters are only accurate near the equator.</description>
<srs>
<number>4326</number>
</srs>
<extent>
<coords>
<double>-180.0</double>
<double>-90.0</double>
<double>180.0</double>
<double>90.0</double>
</coords>
</extent>
<alignTopLeft>true</alignTopLeft>
<resolutions>
<double>2.0</double>
<double>1.0</double>
<double>0.5</double>
<double>0.3333333333333333</double>
<double>0.16666666666666666</double>
<double>0.08333333333333333</double>
<double>0.03333333333333333</double>
<double>0.016666666666666666</double>
<double>0.008333333333333333</double>
<double>0.004166666666666667</double>
<double>0.001388888888888889</double>
<double>8.333333333333333E-4</double>
<double>2.777777777777778E-4</double>
<double>1.388888888888889E-4</double>
<double>8.333333333333333E-5</double>
<double>2.7777777777777776E-5</double>
<double>8.333333333333332E-6</double>
<double>2.7777777777777775E-6</double>
</resolutions>
<metersPerUnit>111319.49079327358</metersPerUnit>
<pixelSize>2.8E-4</pixelSize>
<scaleNames>
<string>GlobalCRS84Pixel:0</string>
<string>GlobalCRS84Pixel:1</string>
<string>GlobalCRS84Pixel:2</string>
<string>GlobalCRS84Pixel:3</string>
<string>GlobalCRS84Pixel:4</string>
<string>GlobalCRS84Pixel:5</string>
<string>GlobalCRS84Pixel:6</string>
<string>GlobalCRS84Pixel:7</string>
<string>GlobalCRS84Pixel:8</string>
<string>GlobalCRS84Pixel:9</string>
<string>GlobalCRS84Pixel:10</string>
<string>GlobalCRS84Pixel:11</string>
<string>GlobalCRS84Pixel:12</string>
<string>GlobalCRS84Pixel:13</string>
<string>GlobalCRS84Pixel:14</string>
<string>GlobalCRS84Pixel:15</string>
<string>GlobalCRS84Pixel:16</string>
<string>GlobalCRS84Pixel:17</string>
</scaleNames>
<tileHeight>256</tileHeight>
<tileWidth>256</tileWidth>
<yCoordinateFirst>true</yCoordinateFirst>
</gridSet>
<gridSet>
<name>EPSG:900913</name>
<description>This well-known scale set has been defined to be compatible with Google Maps and Microsoft Live Map projections and zoom levels. Level 0 allows representing the whole world in a single 256x256 pixels. The next level represents the whole world in 2x2 tiles of 256x256 pixels and so on in powers of 2. Scale denominator is only accurate near the equator.</description>
<srs>
<number>900913</number>
</srs>
<extent>
<coords>
<double>-2.003750834E7</double>
<double>-2.003750834E7</double>
<double>2.003750834E7</double>
<double>2.003750834E7</double>
</coords>
</extent>
<alignTopLeft>false</alignTopLeft>
<resolutions>
<double>156543.033928041</double>
<double>78271.51696402048</double>
<double>39135.75848201023</double>
<double>19567.87924100512</double>
<double>9783.93962050256</double>
<double>4891.96981025128</double>
<double>2445.98490512564</double>
<double>1222.99245256282</double>
<double>611.49622628141</double>
<double>305.7481131407048</double>
<double>152.8740565703525</double>
<double>76.43702828517624</double>
<double>38.21851414258813</double>
<double>19.10925707129406</double>
<double>9.554628535647032</double>
<double>4.777314267823516</double>
<double>2.388657133911758</double>
<double>1.194328566955879</double>
<double>0.5971642834779395</double>
<double>0.29858214173896974</double>
<double>0.14929107086948487</double>
</resolutions>
<metersPerUnit>1.0</metersPerUnit>
<pixelSize>2.8E-4</pixelSize>
<scaleNames>
<string>EPSG:900913:0</string>
<string>EPSG:900913:1</string>
<string>EPSG:900913:2</string>
<string>EPSG:900913:3</string>
<string>EPSG:900913:4</string>
<string>EPSG:900913:5</string>
<string>EPSG:900913:6</string>
<string>EPSG:900913:7</string>
<string>EPSG:900913:8</string>
<string>EPSG:900913:9</string>
<string>EPSG:900913:10</string>
<string>EPSG:900913:11</string>
<string>EPSG:900913:12</string>
<string>EPSG:900913:13</string>
<string>EPSG:900913:14</string>
<string>EPSG:900913:15</string>
<string>EPSG:900913:16</string>
<string>EPSG:900913:17</string>
<string>EPSG:900913:18</string>
<string>EPSG:900913:19</string>
<string>EPSG:900913:20</string>
</scaleNames>
<tileHeight>256</tileHeight>
<tileWidth>256</tileWidth>
<yCoordinateFirst>false</yCoordinateFirst>
</gridSet>
<gridSet>
<name>GoogleCRS84Quad</name>
<description>This well-known scale set has been defined to allow quadtree pyramids in CRS84. Level 0 allows representing the whole world in a single 256x256 pixels (where the first 64 and last 64 lines of the tile are left blank). The next level represents the whole world in 2x2 tiles of 256x256 pixels and so on in powers of 2. Scale denominator is only accurate near the equator.</description>
<srs>
<number>4326</number>
</srs>
<extent>
<coords>
<double>-180.0</double>
<double>-90.0</double>
<double>180.0</double>
<double>90.0</double>
</coords>
</extent>
<alignTopLeft>true</alignTopLeft>
<scaleDenominators>
<double>5.590822640287178E8</double>
<double>2.795411320143589E8</double>
<double>1.397705660071794E8</double>
<double>6.988528300358972E7</double>
<double>3.494264150179486E7</double>
<double>1.747132075089743E7</double>
<double>8735660.375448715</double>
<double>4367830.187724357</double>
<double>2183915.093862179</double>
<double>1091957.546931089</double>
<double>545978.7734655447</double>
<double>272989.3867327723</double>
<double>136494.6933663862</double>
<double>68247.34668319309</double>
<double>34123.67334159654</double>
<double>17061.83667079827</double>
<double>8530.918335399136</double>
<double>4265.459167699568</double>
<double>2132.729583849784</double>
</scaleDenominators>
<metersPerUnit>111319.49079327358</metersPerUnit>
<pixelSize>2.8E-4</pixelSize>
<scaleNames>
<string>GoogleCRS84Quad:0</string>
<string>GoogleCRS84Quad:1</string>
<string>GoogleCRS84Quad:2</string>
<string>GoogleCRS84Quad:3</string>
<string>GoogleCRS84Quad:4</string>
<string>GoogleCRS84Quad:5</string>
<string>GoogleCRS84Quad:6</string>
<string>GoogleCRS84Quad:7</string>
<string>GoogleCRS84Quad:8</string>
<string>GoogleCRS84Quad:9</string>
<string>GoogleCRS84Quad:10</string>
<string>GoogleCRS84Quad:11</string>
<string>GoogleCRS84Quad:12</string>
<string>GoogleCRS84Quad:13</string>
<string>GoogleCRS84Quad:14</string>
<string>GoogleCRS84Quad:15</string>
<string>GoogleCRS84Quad:16</string>
<string>GoogleCRS84Quad:17</string>
<string>GoogleCRS84Quad:18</string>
</scaleNames>
<tileHeight>256</tileHeight>
<tileWidth>256</tileWidth>
<yCoordinateFirst>true</yCoordinateFirst>
</gridSet>
<gridSet>
<name>GlobalCRS84Scale</name>
<description>This well-known scale set has been defined for global cartographic products. Rounded scales have been chosen for intuitive cartographic representation of vector data. Scale denominator is only accurate near the equator.</description>
<srs>
<number>4326</number>
</srs>
<extent>
<coords>
<double>-180.0</double>
<double>-90.0</double>
<double>180.0</double>
<double>90.0</double>
</coords>
</extent>
<alignTopLeft>true</alignTopLeft>
<scaleDenominators>
<double>5.0E8</double>
<double>2.5E8</double>
<double>1.0E8</double>
<double>5.0E7</double>
<double>2.5E7</double>
<double>1.0E7</double>
<double>5000000.0</double>
<double>2500000.0</double>
<double>1000000.0</double>
<double>500000.0</double>
<double>250000.0</double>
<double>100000.0</double>
<double>50000.0</double>
<double>25000.0</double>
<double>10000.0</double>
<double>5000.0</double>
<double>2500.0</double>
<double>1000.0</double>
<double>500.0</double>
<double>250.0</double>
<double>100.0</double>
</scaleDenominators>
<metersPerUnit>111319.49079327358</metersPerUnit>
<pixelSize>2.8E-4</pixelSize>
<scaleNames>
<string>GlobalCRS84Scale:0</string>
<string>GlobalCRS84Scale:1</string>
<string>GlobalCRS84Scale:2</string>
<string>GlobalCRS84Scale:3</string>
<string>GlobalCRS84Scale:4</string>
<string>GlobalCRS84Scale:5</string>
<string>GlobalCRS84Scale:6</string>
<string>GlobalCRS84Scale:7</string>
<string>GlobalCRS84Scale:8</string>
<string>GlobalCRS84Scale:9</string>
<string>GlobalCRS84Scale:10</string>
<string>GlobalCRS84Scale:11</string>
<string>GlobalCRS84Scale:12</string>
<string>GlobalCRS84Scale:13</string>
<string>GlobalCRS84Scale:14</string>
<string>GlobalCRS84Scale:15</string>
<string>GlobalCRS84Scale:16</string>
<string>GlobalCRS84Scale:17</string>
<string>GlobalCRS84Scale:18</string>
<string>GlobalCRS84Scale:19</string>
<string>GlobalCRS84Scale:20</string>
</scaleNames>
<tileHeight>256</tileHeight>
<tileWidth>256</tileWidth>
<yCoordinateFirst>true</yCoordinateFirst>
</gridSet>
<gridSet>
<name>EPSG:4326</name>
<description>A default WGS84 tile matrix set where the first zoom level covers the world with two tiles on the horizonal axis and one tile over the vertical axis and each subsequent zoom level is calculated by half the resolution of its previous one.</description>
<srs>
<number>4326</number>
</srs>
<extent>
<coords>
<double>-180.0</double>
<double>-90.0</double>
<double>180.0</double>
<double>90.0</double>
</coords>
</extent>
<alignTopLeft>false</alignTopLeft>
<resolutions>
<double>0.703125</double>
<double>0.3515625</double>
<double>0.17578125</double>
<double>0.087890625</double>
<double>0.0439453125</double>
<double>0.02197265625</double>
<double>0.010986328125</double>
<double>0.0054931640625</double>
<double>0.00274658203125</double>
<double>0.001373291015625</double>
<double>6.866455078125E-4</double>
<double>3.4332275390625E-4</double>
<double>1.71661376953125E-4</double>
<double>8.58306884765625E-5</double>
<double>4.291534423828125E-5</double>
<double>2.1457672119140625E-5</double>
<double>1.0728836059570312E-5</double>
<double>5.364418029785156E-6</double>
<double>2.682209014892578E-6</double>
<double>1.341104507446289E-6</double>
<double>6.705522537231445E-7</double>
<double>3.3527612686157227E-7</double>
</resolutions>
<metersPerUnit>111319.49079327358</metersPerUnit>
<pixelSize>2.8E-4</pixelSize>
<scaleNames>
<string>EPSG:4326:0</string>
<string>EPSG:4326:1</string>
<string>EPSG:4326:2</string>
<string>EPSG:4326:3</string>
<string>EPSG:4326:4</string>
<string>EPSG:4326:5</string>
<string>EPSG:4326:6</string>
<string>EPSG:4326:7</string>
<string>EPSG:4326:8</string>
<string>EPSG:4326:9</string>
<string>EPSG:4326:10</string>
<string>EPSG:4326:11</string>
<string>EPSG:4326:12</string>
<string>EPSG:4326:13</string>
<string>EPSG:4326:14</string>
<string>EPSG:4326:15</string>
<string>EPSG:4326:16</string>
<string>EPSG:4326:17</string>
<string>EPSG:4326:18</string>
<string>EPSG:4326:19</string>
<string>EPSG:4326:20</string>
<string>EPSG:4326:21</string>
</scaleNames>
<tileHeight>256</tileHeight>
<tileWidth>256</tileWidth>
<yCoordinateFirst>true</yCoordinateFirst>
</gridSet>
</gwcConfiguration>
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