I've almost finished splitting the map into sections by stone type, other than Alluvial. Warlord255, you were right, it makes things WAAAAAY easier to read. I'll post the sectioned-off version once I get a chance to finish it.
The main purpose of this thing is for figuring out what metals can possibly be made given the stone layers in the local map selection screen. I'm happy to see that its moving towards being even better for this.
A good idea, I'd been thinking of making something similar a while back but didn't have the time.
A few things, some may have already been noted:
Key needs to go on the image.
The dashed line from tetrahedrite to silver, bring it's connecting point much closer to the tetrahedrite so it loops off rather than cuts back. It at first glance currently looks like the line is coming from the copper.
cassiterite not cassitenite
galena not gelena
Why having limestone and marble as orange? you don't seem to use it for ores as the key would suggest and it looks confusing. I'd suggest making both red at which point you don't need to group all the flux together which may allow you to clean up the crossing lines on the left.
Use red for the flux stone in the steel reaction as it provides an immediate link to the flux stones.
Box around the steel reaction?
For the alloy reactions make explicit all of the quantities. eg for bismuth bronze reaction, 1x bismuth, 2x copper, 1x tin = 4x bismuth bronze. I checked the wiki and I agree it doesn't make it clear that you get a total output of bars equal to the total input of bars.
As previously noted charcoal doesn't turn into coke. I'd suggest merging the two as you have with the steel reaction. Make the combined bubble brown to fit with the usage in the steel reaction and to help make clear that there has been a change from what it was made from in a similar way to the change of colour from ore to metal. Uncertain of what the best way to indicate the quantity of coke formed from bituminous coal and lignite to be, 3x and 2x respectively, perhaps a number on the line?
All in all even as it currently stands this is a good piece of work.
An industry sheet like this or one for gems would be good additions. The animal/alignment might be but it will have limited lifetime as Toady is removing good/evil areas in favour of sphere variations, and as we haven't seen how that will work yet it is unclear how different things will be.
edit: One more thing that would complete this would be to have the other stones that are only found as inclusions in a layer, dependant on how complex the connections are you may want to split that off onto another sheet.
I think I've fixed galena, but I'll have to check cassitenite. Limestone and marble are now only orange in the correct places. It's much easier to tell now what is an entire layer and what only exists within something else. Dashed lines are easier to follow. Will need to go back and make the steel reaction easier to read... probably going to split it into the pig iron and steel reactions, and just make sure the boxes are next to each other.
Ah, thanks for the heads up on the reactions. I didn't know exactly how that worked, and the wiki didn't state it explicitly, but now I know. I'll go back later and add the numbers into the reactions. Dunno what exactly I'm going to do for the fuel production, but I'll try your suggestions and see what looks best.
As it looks now, it may actually be fairly simple to add in the gems to the stone/ore/metal maps, depending on the number of gems and how they are distributed. I know even less about the gems area since I rarely pursue a gem industry during my fortresses.
Given your news of the animal grid possibly being short-lived, I'll avoid that for now.
For things that are really complex, even a simple table, when formatted and colored appropriately, could be very helpful to a player. If anything ends up being really complicated, a table should do.