Compiling
- To use FTGL, set the environment HAS_FTGL to something that isn't blank. You may also edit the source code to open another font file for displaying the text.
- Requires GLFW2, GLTW, swisseph, and GLM
Controls
- Shift+Up/Down: Scoot the camera 1 AU closer/farther
- Up/Down: Pan the camera up/down by 1 AU
- Left/Right: Pan the camera left/right by 1 AU
- Z: (Un)pause the date
- Escape: Quit the program
- Spacebar: pause
- A: Toggle the display of Earth's moon
- 0/1/2/3/4/5/6/7/8 + KP_ADD|KP_SUBTRACT: Adjust the datetime by the planet's planetary orbit. Here's the value table
| KEY | Planet | Date increment |
|---|---|---|
| 0 | Mercury | 87.969 |
| 1 | Venus | 224.698 |
| 2 | Earth/Sun | 365.256363051 |
| 3 | Mars | 686.971 |
| 4 | Jupiter | 4332.59 |
| 5 | Saturn | 10759.22 |
| 6 | Uranus | 30799.095 |
| 7 | Neptune | 60190.03 |
| 8 | Pluto | 89865.65 |
Nitpicks
- None of the planets are to scale
- Decided to go with distance radii of 1AU between each planet
- Never figured out drag and drop, so had to be satisfied with adjusting the date through keybindings
- Haven't updated archaic API in planet in case I revist this program to include actually drawing the items in question to scale
Sources
- http://cse.csusb.edu/tong/courses/cs520/notes/texture.php *http://www.math.oregonstate.edu/home/programs/undergrad/CalculusQuestStudyGuides/vcalc/parsurf/parsurf.html
- select external library for text rendering (http://sourceforge.net/apps/mediawiki/ftgl/index.php?title=Main_Page)
- http://stackoverflow.com/questions/8024898/calculate-the-vertex-normals-of-a-sphere
- http://www.opengl.org/archives/resources/features/fontsurvey/
- http://web.archive.org/web/20110304035729/http://www.pitt.edu/~mwr12/compcorner/linuxstuff/ftgl.html
- http://leeboyge.blogspot.com/2011/03/compiling-ftgl-213rc5-on-windows-using.html
- http://ftp.gnome.org/pub/gnome/binaries/win32/dependencies/freetype-dev_2.4.2-1_win32.zip
- http://fooplot.com/plot/lvxlsasapl