Download or view drawCountries.frink in plain text format
/** This program demonstrates the use of the country polygons in
Country.frink to draw a map of the world. It can be readily altered to
draw the map in your favorite projection. */
use Country.frink
use geometry.frink
g = new graphics
g.stroke[0.001]
g.font["SansSerif", "bold", 0.5 degree]
// Comment this in to clip to just a part of the world.
//g.clipRectSides[-100 degrees, -40 degrees, -30 degrees, -10 degrees]
// Iterate through all countries.
for [code, country] = Country.getCountryList[]
{
cc = new color[randomFloat[0,1], randomFloat[0,1], randomFloat[0,1], .8]
for poly = country.borders // Iterate through polygons in a country.
{
p = new filledPolygon // This polygon is the filled country
po = new polygon // This is the outline of the country
for [long, lat] = poly // Iterate through points in polygon
{
p.addPoint[long degree, -lat degree]
po.addPoint[long degree, -lat degree]
// Comment out the two lines above and use the 2 lines below for
// a sinusoidal projection. Also change the line at bottom that
// writes the country code.
// p.addPoint[long degree cos[lat degree], -lat degree]
// po.addPoint[long degree cos[lat degree], -lat degree]
}
// Comment this in to draw bounding boxes, which is kinda interesting.
//[left,top,bottom,right] = getBoundingBox[p]
//g.drawRectSides[left,top,bottom,right]
// Draw filled countries
g.color[cc]
g.add[p]
// Draw country outlines
g.color[0.2,0.2,0.2,.8]
g.add[po]
// Draw country names.
[clong, clat] = polygonCentroid[poly]
g.color[0,0,0]
g.text[code, clong degree, -clat degree]
// Use the following line for sinusoidal projection and comment out the
// line above.
// g.text[code, clong degree cos[clat degree], -clat degree]
}
}
g.show[]
//g.write["world.svg", 1000, 500]
Download or view drawCountries.frink in plain text format
This is a program written in the programming language Frink.
For more information, view the Frink
Documentation or see More Sample Frink Programs.
Alan Eliasen was born 19970 days, 8 hours, 27 minutes ago.