Download or view drawSolarSystem.frink in plain text format
// This program draws the current position of planets in the solar system,
// with necessary exaggerated scale.
use planets.frink
time = now[]
g = new graphics
//g.backgroundColor[0,0,.3]
g.color[.5,.5,.5]
// Draw the sun (20 times normal size)
g.fillEllipseCenter[0,0,20 sunradius/au, 20 sunradius/au]
time = now[]
for planet = Planet.planets
{
[L, B, R] = planet.getCoordinates[time]
x = R cos[B] cos[L]
y = R cos[B] sin[L]
// z = R sin B
g.color[.5,.5,.5]
// Draw approximation of orbit
g.drawEllipseCenter[0,0,2 R/au,2 R/au]
// Draw planets (each 20 times bigger than Jupiter, and that's still not
// nearly enough, so make an even bigger circle around them.)
g.color[0,0,0]
//g.text[planet.getName[], x/au, y/au]
g.fillEllipseCenter[x/au,y/au,10 jupiterradius/au, 10 jupiterradius/au]
g.drawEllipseCenter[x/au,y/au,200 jupiterradius/au, 200 jupiterradius/au]
if planet == Planet.Earth
{
g.color[0,0,1,.5]
g.fillEllipseCenter[x/au,y/au,2 * .34 au/au, 2 * .34 au/au]
}
}
g.show[]
g.print[]
//g.write["planetBackground.png",1024,768]
g.write["planetBackground.svg",2048,undef]
Download or view drawSolarSystem.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 20194 days, 7 hours, 54 minutes ago.