Tirex::Backend->new($name)¶

This class should not be instantiated. Create instances of a subclass instead.

$backend->check_map_config($map)¶

Check a map config for this backend for syntactic and other validity. Should croak if it fails.

Overwrite this in the subclass.

$backend->set_status('text')¶

Set status text which is shown on the ps output.

$backend->main()¶

Core backend method. Call this directly after creating a subclass with new(). It will parse the config file(s), set everything up and then wait for rendering requests and fulfill them by calling create_metatile().

$backend->create_metatile($map, $metatile)¶

Create a metatile.

This method has to be overwritten in subclasses.

$backend->write_metatile($image, $filename, $metatile)¶

Takes a single image the size of a metatile, cuts it into tiles and then re-assembles those tiles into a metatile and write it to disk.

$backend->create_error_image($map, $metatile)¶

Create an error image in case a renderer didn't work. The error image is a black/yellow checkerboard pattern.

This method can be overwritten in subclasses.