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Create extremely large images from Minecraft server's Dynmap plugin.

Project Description
# Minecraft Dynmap Time Machine

Python CLI script in that downloads tiles from a Minecraft's Dynmap plugin HTTP server and composes one image in extremely large resolution suitable for print.

![Scaled down image](

This is a scaled down and croped image form original `20736 x 13824px`. You can also [download full size 389 MB image]( See example bellow.

List of all parameter is as follows:

$ -h
usage: [-h] [--list-worlds] [--list-maps] [-t [THRESHOLD]] [-q] [-v]
base_url [world] [map] [center] [boundary_size] [zoom] [dest]

positional arguments:
base_url Dynamp server URL
world world name, use --list-worlds to list available worlds
map map name, use --list-maps to list available maps
center minecraft cooridnates, use format: [x,y,z]
boundary_size size in tiles, use format: [h,v]
zoom zoom level, 0 = maximum zoom
dest output file name or directory

optional arguments:
-h, --help show this help message and exit
--list-worlds list available worlds from this Dynmap server and exit
--list-maps list available maps for this world and exit
-t [THRESHOLD], --threshold [THRESHOLD]
threshold for timelapse images
-q, --quiet
-v, --verbose

## Installation

Most easily install using `pip`:

$ pip install dynmap_timemachine

## 1. Example - capture one large image

Let's say we want to download a `20736x13824`px map (286 Mpx image) from []( at Minecraft position `[3300,65,-2630]`.

1. **First see what worlds are available and what's the name of the world that we want**

$ --list-worlds
world - Svět Majncraft | Overworld
world_space - Vesmír | Space
world_nether - Nether Reloaded

We want the first world on the list called simply `world`.

2. **Then list all maps avaialble for this world**

$ --list-worlds world
surface - Prostorová - Den
surface_night - Prostorová - Noc
populated - Osídlení světa - prostorové
flat - Plochá - Den
populated_flat - Osídlení světa - ploché

This lists flat, isometric, cave and all other types of maps together. Map names depend on Dynmap's configuration. We want the first one called `surface` which is an isometric map.

3. **Make a test image with Minecraft's coordinates**

Check your coordinates on Dynmap or simply walk in Minecraft at the position that you want to capture and press F3 to see what are your Minecraft's coordinates. Then make a test image to make sure that the position captured by `minecraft-dynmap-timelapse` is correct:

$ world surface \
[3300,65,-2630] [3,2] 0 majncraft.test.png

Used parameters:

- `` - Dynmap's HTTP server URL
- `world` - World name
- `surface` - Map name
- `[3300,65,-2630]` - Minecraft coordiantes that will be automatically converted to tile names
- `[3,2]` - Number of tiles I want to download in each direction from specified coordinates. That's two to the left and right, two to the top and bottom. This will actually download 6x4 grid where each tile is 128x128 pixels. In total this image will be 768x512 pixels
- `0` - Zoom level. 0 means maximum zoom in. Number of zoom levels depend's on Dynamp's configuration
- `majncraft.test.png` - Output file name

This should generate a 768x512 image:

![Preview from 6x4 grid](

4. **Make a full size image in 20736x13824 resolution (162x108 tiles)**

Finally, we can make the full size image:

$ -v world surface \
[3300,65,-2630] [81,54] 0 majncraft.3320.full.png

This takes a while because in total it needs to download `81 * 2 * 54 * 2 = 17496` tiles. The final image has 389 MB.

![The final image scaled down to 728px width](

You can download the [full 20736x13824 size image for this example (389 MB)]( or a different, [smaller 16384x10240 image (168 MB)]( if you just want to see what it looks like in full resolution.

## 2. Example - create timelapse video

Another use case is creating timelapse animations from multiple images captured from a Dynmap.

Usage is the same as capturing a single image but this time the last argument is not an output file name but it's a directory for timelapse images instead. File names are generated automatically. The script captures an image from Dynmap and then compares it with the last image in the directory. Only if these two are significantly different (by default 1% of pixels; you can change it with `-t|--threshold`) it saves the new image.

You can ideally schedule to run this script every few minutes when you're building something and it'll genereate series of images capturing your progress named by the time they were captured.

1. **Create a directory for timelapse images**

$ mkdir images

2. **Run `` periodically (eg. with `cron`)**

$ -v world surface \
[3300,65,-2630] [4,3] 0 images/

Note that this image should be relatively small because we want it to capture the map at this particular moment. That's why it can't take hours like the previous example.
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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
dynmap_timemachine-0.9.5.macosx-10.10-x86_64.exe (69.5 kB) Copy SHA256 Checksum SHA256 any Windows Installer Nov 16, 2015
dynmap_timemachine-0.9.5.tar.gz (8.9 kB) Copy SHA256 Checksum SHA256 Source Nov 16, 2015

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