numpy-izing minetestmapper

[falsegrayburger]

Please red ver!

[paramat]

Amazing work! pixels per node will be very useful, look forward to using this once i install numpy.

[spillz]

Amazing work! pixels per node will be very useful, look forward to using this once i install numpy.

Cool! I encourage you to post images... Bug reports and feature requests welcome too.

I guess python is the ugly step child here. Too bad for me that you guys chose lua over python.

[paramat]

Mandelbox mapgen plus paragenv7 mod biomes.
Finally got this working, it's amazing, really like the sideview and fog options, thanks for this.

[paramat]

Mountain found in paragen mod.

[spillz]

Paramat: very cool. I guess some of the blocks/chunks haven't been generated, which creates some of the discontinuity. Really like the look of the second one. Your different trees and biomes show up really nicely.

[paramat]

Yes those were sideviews of worlds instead of cross sections. Here's a central cross seciton of a flexrealm mod dyson sphere 2600x1200px, the rings are interference patterns in the clouds.

[spillz]

Yes those were sideviews of worlds instead of cross sections. Here's a central cross seciton of a flexrealm mod dyson sphere 2600x1200px, the rings are interference patterns in the clouds.

Wow... 8D

(And I had no idea that clouds get drawn -- or is this a feature of you mod?)

[spillz]

Latest update to the mapper. Let's go caving...

Code: Select all

 python minetestmapper-numpy.py worlds/stampyworld/ stampyugb.png --drawunderground --minheight -32

Had no idea caves were so numerous. (Though maybe just bugs in my code?)

[paramat]

^ Good feature.

(And I had no idea that clouds get drawn -- or is this a feature of you mod?)

Yeah those are stationary cloud nodes added by my mapgen.

[thetoon]

Am I the only one having trouble on 64bits python?

[spillz]

Am I the only one having trouble on 64bits python?

What's the problem?

EDIT: If using python3, try pulling the latest version from my github repo. (Left in a python2 print statement)

[thetoon]

What's the problem?

EDIT: If using python3, try pulling the latest version from my github repo. (Left in a python2 print statement)

I'm using Python 2.7, so it shouldn't be a python3 problem.

Still, when running the script, I got hundreds of the following statement :

Code: Select all

Traceback (most recent call last):
  File "./minetestmapper-numpy.py", line 707, in generate_map_info
    plist = map_block(mapdata, version, ypos, maxy, plist, cdata, hdata, dnddata, day_night_differs, id_map, ignore, air, face_swap_order)
  File "./minetestmapper-numpy.py", line 343, in map_block
    cdata[po] = content[opaques]
TypeError: Cannot cast array data from dtype('int64') to dtype('int32') according to the rule 'safe'
Error at (-72,-1,-47): Cannot cast array data from dtype('int64') to dtype('int32') according to the rule 'safe'
Traceback (most recent call last):
  File "./minetestmapper-numpy.py", line 707, in generate_map_info
    plist = map_block(mapdata, version, ypos, maxy, plist, cdata, hdata, dnddata, day_night_differs, id_map, ignore, air, face_swap_order)
  File "./minetestmapper-numpy.py", line 343, in map_block
    cdata[po] = content[opaques]
TypeError: Cannot cast array data from dtype('int64') to dtype('int32') according to the rule 'safe'

And the generated image contains nothing but blue sky (or whatever blue means).

[spillz]

Still, when running the script, I got hundreds of the following statement :

Try pulling the latest version and testing again. I suspect it won't fix, but you never know...

What OS are you using? What version of minetest was the map made with? Have you tried on a different world? Also, try using the default colors.txt if you haven't already.

[thetoon]

Holy smokes, Batman! It works. Just pulling the latest version, and it worked. Out of the box. No need to change colors.txt or anything.

Congrats on the quickest fix ever

[paramat]

spillz, the cross section images facing north, south etc. work but have been reversed left to right, try comparing a cross section with an overhead view and you'll see.

[spillz]

spillz, the cross section images facing north, south etc. work but have been reversed left to right, try comparing a cross section with an overhead view and you'll see.

I thought I had fixed those issues. But thanks, I will look into it.

[spillz]

Try the latest on my github repo (see here). It looks like north/south were reversed but not east/west, which I don't really understand. (Suspect there's another bug somewhere else)

[paramat]

Seriously, this mapper is the best thing to happen to Minetest since voxmynips.

EDIT tested and works, thanks.

[spillz]

Update: Added LevelDB support

[Krock]

Update: Added LevelDB support

Yay!


minetestmapper-numpy.py sais:

Code: Select all

Traceback (most recent call last):
  File "E:\Programme\minetest\util\minetestmapper-numpy.py", line 30, in <module
>
    import cStringIO
ImportError: No module named 'cStringIO'

please use

Code: Select all

import io

cStringIO.StringIO replace with io.StringIO

Edit: Any working py-leveldb out there for python 3.3?

[spillz]

Thanks re stringio.

This is probably as good as it gets but you will have to point it at a levedb dll and i would have to add support because the API is different: https://code.google.com/p/leveldb-py/

[dgm5555]

Using the code from the repo I get the following fatal error for a variety of commandlines :-(:
(running Ubuntu 14.04 python 2.7)

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~/.minetest/mods/minetest/util$ python minetestmapper-numpy.py ~/.minetest/worlds/stampyworld/ stampyugb.png --drawunderground --minheight -32
Result image (w=752 h=832) will be written to stampyugb.png
Error at (-23,3,-23): initial_value must be unicode or None, not buffer
Traceback (most recent call last):
  File "minetestmapper-numpy.py", line 619, in generate_map_info
    f = db.get(ps)
  File "minetestmapper-numpy.py", line 429, in get
    return io.StringIO(r[0])
TypeError: initial_value must be unicode or None, not buffer
Block data: Traceback (most recent call last):
  File "minetestmapper-numpy.py", line 1005, in <module>
    main()
  File "minetestmapper-numpy.py", line 1000, in main
    world.generate_map_info(str_to_uid)
  File "minetestmapper-numpy.py", line 781, in generate_map_info
    for c in r[0]:
NameError: global name 'r' is not defined

As a wild shot, I also tried python3 (after installing python3-numpy and python3-pil, but also errored with:-

Code: Select all

~/.minetest/mods/minetest/util$ python3 minetestmapper-numpy.py ~/.minetest/worlds/stampyworld/ stampyugb.png --drawunderground --minheight -32
Traceback (most recent call last):
  File "minetestmapper-numpy.py", line 1005, in <module>
    main()
  File "minetestmapper-numpy.py", line 987, in main
    uid_to_color, str_to_uid = load_colors()
  File "minetestmapper-numpy.py", line 198, in load_colors
    f = file("colors.txt")
NameError: name 'file' is not defined

Using minetestmapper.py instead of minetestmapper-numpy.py produces a png though:
python minetestmapper.py -i ~/.minetest/worlds/stampyworld/ stampyugb.png --drawunderground --minheight -32

[dgm5555]

BTW, is there any way of creating a mod which displays the pregenerated png as a map with player location (or even without would be cool).
Also wondering how difficult it would be to use the script to produce a 3D model which could be output to blender?

[spillz]

Try changing all occurrences of StringIO to BytesIO and file to open.

Re pre generated map I am not sure. There are already in game mappers.

Re blender, probably not hard just need something to handle blender output