makeschem is a program to convert the text-based scdef file format to
a .schematic file supported by tools like WorldEdit.
The generated schematic file is uncompressed. Many tools need a gzip-compressed schematic file, so you should pass the generated file through gzip.
The schematics definition file format (scdef) is a very simple text-based
file format, meant to be easy to generate from other tools.
It's line-based, where each line consists of 3 whitespace-separated numbers,
followed by a string. The numbers represent x/y/z, and the name represents
the block.
Here's an example file:
0 0 0 redstone_torch
9 0 0 redstone_torch
9 0 9 redstone_torch
0 0 9 redstone_torch
After generating a schematic from that definition and loading it into a world, we see four redstone torches at X/Z coordinates (0,0), (9,0), (9,9) and (0,9):
All unspecified blocks are set to air.
To see which block names are available, you can look at
mappings.c.
The format is {<block name>, <block ID>, <block metadata>}, and the file is
generated from the file legacy.json.
Read the JSON file used by WorldEdit (legacy.json) to map strings to legacy block IDs- Automatically gzip the resulting schematic