An apache module that converts a geospatial tile service from one projection and tiling grid to another

Implements one apache configuration directive: Retile_ConfigurationFiles source_configuration_file configuration_file The first file contains the source raster information, while the second the desired configuration for the output

Size X Y Z C

• Mandatory, at least x and y, the raster size in pixels, in both files

PageSize X Y 1 C

• Optional, the pagesize in pixels, in both files

Projection String

• Optional, in both files

SkippedLevels N

• Optional, defaults to 0, counted from the top of the pyramid, in both files

Projection WKT

• Optional, defaults to WM, as in WebMercator

BoundingBox xmin,ymin,xmax,ymax

• Optional, bounding box, defaults to 0 to 1 in both x and y

SourcePath

• Mandatory, the location of the tile source, up to the numerical arguments, as a local web path suitable for a subrequest

EmptyTile

• Size Offset FileName

MimeType

• Output mime type, defaults to input format

RegExp

• One or more, guard regular expression, the URL has to match one of these if any is present

ETagSeed

• A base32 64bit number, to be used as a seed for ETag generation

InputBufferSize

• Default is 1MB, should be larger than the maximum expected input tile size

OutputBufferSize

• Default is 1MB, should be larger than the maximum expected output tile size

Quality

• A floating point figure, format dependent. Default is 75, suitable for JPEG format

Oversample

• If on and the output resolution falls between two available input resolution levels, the lower resolution input will be chosen instead of the higher one.

If the input and output size and alignment match, it can be used to change quality.