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dkahle / ggmap

A package for plotting maps in R with ggplot2
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Cannot download some tiles (often stamen maps) #2

Open jiho opened 12 years ago

jiho commented 12 years ago

Hi,

This is probably not related to ggmap itsefl but impairs its usage (and maybe you can work around it). Quite otfen, I cannot download a tile through R while using the address in a web browser works.

For example

qmap("new-york", zoom=13, source="stamen", maptype="watercolor")Error in download.file(urls[[k]], destfile = destfile, quiet = !messaging,  : 
  cannot open URL 'http://tile.stamen.com/watercolor/13/2411/3078.png'
In addition: Warning message:
In download.file(urls[[k]], destfile = destfile, quiet = !messaging,  :
  cannot open: HTTP status was '504 Gateway Time-out'

while immediately after, using http://tile.stamen.com/watercolor/13/2411/3078.png in chrome returns the map.

However, both curl and wget also get the 504 time out.

Is there a usage limit in stamen maps?

jwhendy commented 11 years ago

Just to chime in, I'm experiencing this quite a bit as well, though manual visiting in a browser is not seeming to work, either. I can view it in the Stamen map viewer and verify path as http://maps.stamen.com/watercolor/#zoom/lat/lon, which I thought would indicate that those options passed to get_map() would work.

They often won't, however. zoom = "auto" will work, even if no other zoom levels will result in getting the map.

Any way to track this down?

scottmmjackson commented 6 years ago

I imagine it's stamen usage limits. Doesn't feel great, but the alternative is using local databases.