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[Baboonanza]

1- Yes. C++/OpenGL using a BSD-licensed GUI toolkit. It's a bit like Qt, but without all 'new' usage, and has some very fast containers: www.ultimatepp.org
2- This is more difficult to explain

As Toady stated in another thread, the DESIGNATION_MATGLOSS_BITX is the index of the geological layer for a rock tile. You have to jump through a load of hoops to link this to a material type though.

To get the list of geological layers you have to:
1- Find the coordinates of the map block on the world map. ie. (mapXY + blockXY + (1,1)) / 16
2- Use these to find the region block data in the world map. There is a 2-dimensional array that holds these
3- Read the geological block index from the region block (I assume these are kept seperate to save space)
4- Find the geological block. These are stored in a vector.
5- Read the list of matgloss indices.
You can then use the designation matgloss index to find the material.

My notes:

Spoiler (click to show/hide)

struct World @ 0x01562AA0
{
    byte[0x84]
    word worldsizeX
    word worldsizey
...
&World + 0x678
    Vector<GeoBlock *> geo_blocks
    Vector biome_blocks ? - Complete guess
...
&World + 0x6a8
    RegionBlock **regions    // Column order
}

struct RegionBlock : size 5C
{
    byte[0x58]
    dword geo_block_index
}

struct GeoBlock
{
    dword ?
    Vector<GeoLayers *>        geolayer_ptrs
    + Maybe more stuff
}

struct GeoLayer
{
    word ?
    word mat_gloss_index - index of the stone in the mat. gloss list/array
    + some other stuff.
}

My hideous code to do it (Point region already holds the correct region coords for the block, proc is an abstraction of the Win32 ReadProcess calls):

Spoiler (click to show/hide)

bool DwarfMap::ReadGeoLayers(ProcessPeek &proc, Point region, const DFMemMap &mem, Vector<int> &geo)
{
   // Get region x/y position
   dword region_row_ptr = proc.Read32(mem.world_addr + mem.regions_off);
   if (IsNull(region_row_ptr))
      return false;
   region_row_ptr += region.x * 4; // Column address
   // Find geo layer index in region block
   dword region_col_ptr = proc.Read32(region_row_ptr);
   if (IsNull(region_col_ptr))
      return false;
   dword region_ptr = region_col_ptr + region.y * mem.region_block_size;
   dword geo_index = proc.Read16(region_ptr+mem.region_geo_index_off);
   if (IsNull(geo_index))
      return false;
   // Find geo block using index
   dword geo_start_ptr = mem.world_addr + mem.geo_blocks_off;
   dword geo_end_ptr = mem.world_addr + mem.geo_blocks_off + 4;
   geo_start_ptr = proc.Read32(geo_start_ptr);
   geo_end_ptr = proc.Read32(geo_end_ptr);
   if (IsNull(geo_start_ptr) || IsNull(geo_end_ptr))
      return false;
   // Offset
   dword geo_block_ptr = proc.Read32(geo_start_ptr + geo_index * 4);
   // Read geo layers
   dword geo_layer_start_ptr = proc.Read32(geo_block_ptr + ;
   dword geo_layer_end_ptr = proc.Read32(geo_block_ptr + 12);
   if (IsNull(geo_layer_start_ptr) || IsNull(geo_layer_end_ptr))
      return false;   
   for (; geo_layer_start_ptr < geo_layer_end_ptr; geo_layer_start_ptr += 4) {
      dword geo_layer_ptr = proc.Read32(geo_layer_start_ptr);
      if (IsNull(geo_layer_ptr))
         return false;
      geo_layer_ptr += 2;
      dword mat_gloss_index = proc.Read16(geo_layer_ptr);
      if (IsNull(mat_gloss_index))
         return false;
      geo.Add(mat_gloss_index);
   }
   return true;
}

The relevant offsets:

Spoiler (click to show/hide)

v0.28.181.39e - I haven't done any other versions yet, but the stuff isn't too difficult to find once you know where to look
PE_timestamp 0x00400108
PE_val 0x4888672c
map 0x01561470
map_region_x 0x015614A0
map_region_y 0x015614A4
map_x_count 0x01561488
map_y_count 0x0156148c
map_z_count 0x01561490
tile_type_off 0x062
tile_desig_off 0x264
tile_occ_off 0x664
world 0x01562AA0
geo_blocks_off 0x067C
regions_off 0x6A8
region_block_size_off 0x5C - You need to know this to navigate the array of region blocks   
region_geo_index_off 0x58

As you can imagine, this took a little while to figure out Good luck if you try and implement it. I'm going to try the same contructed walls/pillars next but that seems even more complicated.

[Mithaldu]

great to hear about the open-source-ness, kudos.

as for the second part: apologies, but there wasn't much need to go into detail, since i'd already been doing this, thanks to jifodus, in a way that covers ALL versions (to which he has xml files on his web space): http://code.google.com/p/dwarvis/source/browse/branches/dev/map_extract/map_extract.pl

Still thanks for explaining the matgloss stuff, saves me a bit of time for when i implement that.

I'd also suggest you check out the wiki, there is a LOT more data on that stuff.

[TheSpaceMan]

Have you decided how to fix collision. My first idea would be to use something like physx (easy to set up) and parse the world for solid tiles and simply calculate as big collision boxes as possible from the data, not careing about unused tiles. Specialy since it got a working player object that would be able to walk around in the enviorment.

[Andir]

Have you decided how to fix collision. My first idea would be to use something like physx (easy to set up) and parse the world for solid tiles and simply calculate as big collision boxes as possible from the data, not careing about unused tiles. Specialy since it got a working player object that would be able to walk around in the enviorment.

Simple tile based collision won't work?  You're transferring the data of the tiles I assume.  Some are "walkable" others are not.  You convert your coordinate and the coordinate for the center of the tile into common numbers (divide by tile width, cast to integer (optional), compare)

[TheSpaceMan]

It was more a general tought/question for the people who started working on 3d "walk around in" viewer.

I will look more into the mapdata stuff later. But now the Creature Mod Gui takes my time, and a co-op game contest and a old project from school that is being revived. After that I will do some more DF related "stuff".

[Hundsstern]

Compliments! I'm really waiting for a version which works with 28_181_40c.

[Mithaldu]

This one does, it's not in the OP, but it's the most current version: http://code.google.com/p/dwarvis/downloads/detail?name=3dwarf_04f.rar

[Mohreb el Yasim]

It might be interesing to see if the maps can be exported to Cube. It's a free engine for FPS shooters, which seems simple enough that an exporter could be a possibility.

http://cubeengine.com/

will it say that maybe some they we can play FPS (with a fantasy style First Person Smasher) in our fortresses ... i would be so happy ...
-a sniper in the Granit room with an adamantin cross-bow
-where there is an engraving of elf surrended by elfs?
-yes
-ok i pull that lever and he will be in magma ...
-how did you know it?
-it was my fortress

[Hundsstern]

This one does, it's not in the OP, but it's the most current version: http://code.google.com/p/dwarvis/downloads/detail?name=3dwarf_04f.rar

You're right. Thx!

[Dorten]

map_extract.pl - extracts dwarf fortress map data from the memory while ingame
Show help with 'map_extract -h'.

Could not find DF version in local data store. Checking for new memory address d
ata...
  Locally...
    Found 0 memory data files...
  Remotely...
Couldn't get it! at map_extract.pl line 304.

So... any chnces of downloading this "memory data files" manually?

[Jifodus]

http://www.geocities.com/jifodus/tables/dwarvis/

Place in the folder named: conf

[Dorten]

Strange. After that is said, that found file locally, but still tried to download it and failed.
I had to type new params in script itself.

[Grath]

I keep getting this message, running 40c (with a few minor mods, like changing 'Marksdwarf' to 'Sniper', stuff like that) and 04f with the conf files manually downloaded:

Code: [Select]

Map data is not yet available, make sure you have a game loaded.I do have a game loaded and paused. I said 'Yes' to it being 40c, 'No' to show hidden tiles, and 'FortressName' to the third question. Saying 'Yes' to show hidden tiles doesn't change anything.

[Drunken]

I am having trouble getting this to work. The map file is created without errors but when I try and load it it just crashes the 3d program. It is a very mountainous map does this sometimes cause problems? I can load the deafault maps that came with the visualiser without any problems

[Andir]

I am having trouble getting this to work. The map file is created without errors but when I try and load it it just crashes the 3d program. It is a very mountainous map does this sometimes cause problems? I can load the deafault maps that came with the visualiser without any problems

The maps that come with the visualizer are already formatted to work properly.  They are in no way a valid test of the map export process.