svgrenderinggeospatialopenstreetmapgeo
Convert geographic coordinates into svg coordinates
I want to build a Node JS application that generates an SVG image from geographic coordinates it fetches from overpass.
I tried to implement that by just using the geographic coordinates as coordinates for SVG paths, but the result looks distorted (it should look like this):
I assume the problem is that the earth is actually a sphere and there needs to be done some math in order to get a correct map projection.
What is the actual problem here? Are there any existing algorithms or libraries to cope with that?
Solution
The math behind this is called map projection.
Many online maps use the Mercator projection. The OSM Wiki has example code in various languages. I'm sure you will find more libraries on the Internet.
- Math.Sin() gives incorrect value
- How to run my python script when the sunOS is start booting
- Express-session: not resetting cookie expiration on each request
- Getting a stack overflow exception when normalizing a vector
- Edit default summary function in R gives error for multiple variables
- What was a For loop? Why isn't it needed in R?
- How to use download button in shiny and save results in various formats (csv, texte, pdf, spss...)?
- Why are there two assignment operators, `<-` and `->` in R?
- lm()$assign: what is it?
- How to get the value of list(...) in R and S functions
- Design matrix for MLM from library(lme4) with fixed and random effects
- how to generate elements not included in my sample
- Create a matrix with gradually changing values without a for loop
- Emacs ESS and S-plus ( S+ ) 8.1 compatability
- How to lag date-index in a time-series in R?
- Nonlinear regression in R / S
- Calling R from S-Plus?