Patch: Create realistic heightmap, water & town placement

[mitchell600]

Ok now this...
The links for what i all need?
Becas its quita mess for me up above...
I got now 6.1 and an older version 2.3 ore it whas 2.5
What i have to do in a clearer way??

Mitch

[CommanderZ]

You may:

a) Get according source code, apply the patch and compile it

b) Get BuildOTTD and it will do it for you

c) Ask the author if he has a working compiled executable for your platform

[mitchell600]

Hmm nvm im no computer nerd
I stil dont know how to get that tool to make 5 mil population citys..



Mitch

[wolkottept]

Hi Mitch,

Sorry, I guess you misinterpret the GUI text. In TTD you have four types of towns/cities (Small, Medium, Large, City). That is the first column in the table.

With the minimum population options in the third column you select the towns who have in reality a population of more then for example 2 million inhabitants (data is available in towns.txt) to be of the type city. The fourth column indicates the estimated number of towns that will be created of a certain type. (Towns that are too close will be merged into a single town).

The size of the town will be of the specified start size (indicated by the numbers (0,1,2,3) in second column). All towns that are grouped in for example, the city type will have roughly the same size. You could increase the start size by adjusting the numbers in the second column. It is also possible to create large "Small towns" and small "Cities) by adjusting the numbers like (3,2,1,0).

Regards,
Pascal

[mitchell600]

My question whas how to instal this tool???
I dont got it..

Mitch

[wolkottept]

Mitch,

I guess you haven't read the SVN pages (see: http://wiki.openttd.org/index.php/SVN#H ... ce_code.3F)

In summary (commands for linux, for windows see the above wiki link):

- Make an empty directory on your PC
- Do a checkout of the source, it has to be revision 11047, because that is where the patch is made for (svn co -r 11047 svn://svn.openttd.org/trunk/ . )
- Download and copy the patch to the directory
- Apply my patch to the original source (patch -p0 < realistic_map_and_towns_wolkottept_r11047_0v02.diff)
- Compile the sources (see the above wiki link)
- Run OpenTTD

[wolkottept]

I updated the patch such that water information can included too. Furthermore, a shell script is available to automatically generate the necessary PNG input files.

The initial post is updated to reflect the changes.

[mitchell600]

Hmm to hard for me.
I dont understand anything from it :S
What if somebody makes a file that u install into the game so its there?
Mitch

[ostlandr]

Wow! And to think I was planning to spend time drawing an isometric grid over a paper map, and manually plotting the town locations.

I think I'll take another crack at compiling patches.

[Regiovogel]

Hi,

would anybody please be so kind to provide a win32 binary with this patch? BuildOTTD quits with the very informative message "Compile failed", so I have no idea why it failed (yes, I selected r11047)

Any hints?

[Wolf01]

Now we have the rivers feature, is possible in any way to place realistic rivers instead of canals?

[wolkottept]

Now we have the rivers feature, is possible in any way to place realistic rivers instead of canals?

Last year there was a patch with water (not canals) at various levels, but I was not able to find this patch. Then it will also be possible to create land below sea-level. Only flooding might be a problem. From the PNG files it is not possible to discriminate between lakes, rivers, canals etc. without any additional analysis. So it will be either place rivers or place canals.

If somebody has a suggestion, please let me know.

[CommanderZ]

There are rivers in trunk - just get latest nightly and try it into scenario editor.

[wolkottept]

There are rivers in trunk - just get latest nightly and try it into scenario editor.

CommanderZ, thank you very much for this great tip. I updated the code to one of the latest revisions (quite some work). The water bodies are now placed as rivers on the map.

Furthermore, the code in general and histogram information in the generation window has improved (see the first post).

[wolkottept]

Fixed a bug in the script that generates the three PNG files and info file. It is now possible to create maps below the equator.

[RBC]

hi wolkottept!

I've followed your work quite for a while, but I was unable to compile the patch. (BuildOpenTTD or MSVC 2005)
Today it works in Opensuse 11.0

Amazing work, congratulations.

One thing I have noticed:

The water placement is not very well in some cases.
for example realistic rivers are not fluently drawn as 'a' river, but as water dots in the map.

And also in some cases there are waterfalls on the coast. (see attached pic)

A solution for the rivers is maybe to modify the water picture in paint and redraw with a bigger black pencil the rivers manually.

[CommanderZ]

or it could interpolate by looking also in sorrounding pixels of the river map.

[wolkottept]

True, the water placement seems not to go perfect, but unfortunately the SRTM input data does not differentiate between canals, rivers, lakes, sea etc. With the conversion from SRTM via PNG to eventually placement on the map resizing of the images is done. Most of the scaling is based on resampling and not scaling (interpolation), which is slower. Resampling pick a specific pixel instead of combining multiple pixels into one. Due to this resizing some of the RAW data gets lost, which could be maintained with better resizing functions.

The resampling probably results in a scattered river. The problems at coast line are caused by the decision not to place rivers on non-flat tiles with 3 corners at the same level, but place water on non-flat tiles with 2 corners at the same level.

Some solutions (suggestions are welcome)
- Change the scaling from resampling to resizing
- Make assumptions on the surrounding information
* Search for typical patterns that could be a river in the real world
* Search for coast lines
- Lower the land that is close to the coast instead placement of river tiles

I am not in favor of adjusting the input files, because this requires a lot of manual work and that is what I would like to prevent with this patch in the first place.

Other suggestions for the patch are also very welcome.

[yorick]

Does anyone have a precompiled win32 binary of the tool used for converting?
I can't seem to be able to build it myself

[tigerface]

I cant get it to build either, I've tried three methods now and still no luck. Any help getting BuildOTTD to actually compile this would be very welcome!