Did he share a link to the map file that he produced? I'm not seeing it, and it would be incredibly generous if he had made this available for others.
Printing a wall-sized world map and what I've learned from it
121–130 of 234 posts
Re: Printing a wall-sized world map and what I've learned from it
#122I don't really understand why OP decided to print it and glue it in separate steps. It seems rather expensive rather than finding someone to do all the work.
For example these guys would do the job for 142 euros http://sprint24.net/go/29ul/ I'm not sure they'd ship internationally though (or at all, for an item of that size).
Re: Printing a wall-sized world map and what I've learned from it
#123This article's throwaway notion of glow-in-the-dark pins has got me thinking about how to make a surface with light-up LED pins that can be stuck in arbitrarily. - You could use (cleverly-braided+insulated) regular LEDs if there was a breadboard or something behind the map, but that'd be both huge and inconvenient. - Maybe LEDs with inductive coils and a large backing induction mat? - Given a metallic backing, and a…
Probably overkill, but you could get a similar effect with a high resolution projector aimed at the map. Light up certain spots with color, and leave the rest black.
Re: Printing a wall-sized world map and what I've learned from it
#124Earlier quoted context omitted.
Gall-Peters is definitely not conformal. It preserves area, but greatly distorts angles, apart from at the two standard parallels of 45 degrees north and south. This results in the shapes of land masses getting very squished towards the poles (and to a lesser extent, the equator). For an example, look at the shape of Greenland, which appears twice as wide (east-west) as it is tall (north-south), when in reality it's…
A Mercator projection (ed: is a Conformal map, but) it also greatly distorts both angles and shapes as you approach the poles. The trivial example is to walk a square mile (N,W,S,E) you would expect the opposite sides to be at 45deg angle, but on Mercator the sides get stretched so a square in the real world can have a 10+:1 or even 100:1 side lengths on a Mercator map. The property they both preserve is points north…
It preserves angles locally. https://en.wikipedia.org/wiki/Conformal_map
Re: Printing a wall-sized world map and what I've learned from it
#125I don't really understand why OP decided to print it and glue it in separate steps. It seems rather expensive rather than finding someone to do all the work. For example these guys would do the job for 142 euros http://sprint24.net/go/29ul/ I'm not sure they'd ship internationally though (or at all, for an item of that size).
+1
Re: Printing a wall-sized world map and what I've learned from it
#126This article's throwaway notion of glow-in-the-dark pins has got me thinking about how to make a surface with light-up LED pins that can be stuck in arbitrarily. - You could use (cleverly-braided+insulated) regular LEDs if there was a breadboard or something behind the map, but that'd be both huge and inconvenient. - Maybe LEDs with inductive coils and a large backing induction mat? - Given a metallic backing, and a…
Probably overkill, but you could get a similar effect with a high resolution projector aimed at the map. Light up certain spots with color, and leave the rest black.
Except that if someone walks up to look at the map they'll block the projector beam and you lose the effect
Re: Printing a wall-sized world map and what I've learned from it
#127This article's throwaway notion of glow-in-the-dark pins has got me thinking about how to make a surface with light-up LED pins that can be stuck in arbitrarily. - You could use (cleverly-braided+insulated) regular LEDs if there was a breadboard or something behind the map, but that'd be both huge and inconvenient. - Maybe LEDs with inductive coils and a large backing induction mat? - Given a metallic backing, and a…
you could just have self powered led pins that have a switch in the head that turns on when you press the head down
...this way you could also selectively light up pins!
Re: Printing a wall-sized world map and what I've learned from it
#128I can't believe how negative the comments are here, criticizing the projection. I don't really like the term "middlebrow dismissal" but it seems to apply. As an aside, have you looked closely at Greenland on a globe? It looks all wrong - long and skinny like someone messed up the aspect ratio.
> As an aside, have you looked closely at Greenland on a globe? It looks all wrong - long and skinny like someone messed up the aspect ratio.
:) Yeah! I don't know why the 3D spherical projection gets a free pass when we're talking about mapping.
Re: Printing a wall-sized world map and what I've learned from it
#129Clicked through thinking the "what I've learned from it" would contain some rousing geopolitical epiphany. Alas no, stuck some paper on a wall, put some pins in it, cool, cool.
Re: Printing a wall-sized world map and what I've learned from it
#130I love that the small details are preserved; that's gorgeous. But the omission of Antarctica would unsettle me every day until I redid it.