Read. Observe. Learn. :-) DCW Endeavors

3D Rotating Revolving Object Program

Hello, all my web visitors! Thank you for visiting! Here I present to you another one of my projects, completed on 3 7 23 :-)

As explained by the title, this program involves a simple object capable of rotating, revolving, and rotating while revolving.

To begin, I would recommend inputting x = 10, y = 5, and z = 25 to get a good look at the object.

Then, have some fun with this crazy guy! Note that cw stands for clockwise and ccw stands for counter-clockwise. But, to get you started, here below are my recommendations:

• First, as mentioned above, type in 10, 5, and 25 for x, y, and z, respectively, into the text boxes named accordingly. Then, click Create Object Axis.
• Secondly, click the +rotate y (ccw) button to watch the object rotate.
• Next, another of my favorites, click on the +revolve (ccw) to see the object revolve around the y axis while rotating.
• Then, try out some of the other controls. Like change the object's size, color, and/or the background too! Or change the rotating or revolving speeds.
• Note too that the font size of the graph labels can be altered.
• One more thing - the orientation, in all 3 directions, can be controlled either by a mouse/screen touch or by the controls above the graph.

The main javascript 3D rendering engine for this program is a further reverse engineering process by me of dionysis initial program, Vanilla Javascript 3D cube. I simply built my code around the main core functions of that initial program, and then extrapolated further out from there.

You can find out more by reading this blog detailing my reverse engineering effort of the JS 3D rotating cube to program my Matrix Vector 2D 3D Calculator.

Oh, a few more things I wanted to point out:

• The reason the rotation or revolution number displays decrease as their speeds increase is because the javscript function I used, setTimeout(), will work faster as the milliseconds (ms) between redraws are decreased. My apologies if that seems confusing at first.
• Ever hear how our Moon's rotation is called synchronous rotation? Well, if you would like to see this effect, get the object rotating and revolving and then set both at the same milliseconds amount. I tried setting both at 40ms, and though rather fast, I could see this cool rotation phenomenon taking place.
• My son helped me with the mouse controls, for both the computer and touchscreen controls. He is a brilliant programmer, always impressing me. Check out his website, Pixilart, a social media website for pixel art enthusiasts.

Also, eventually, I would like to write a blog about my mathematical journey in creating this program.

If you find any bugs in this program, please contact me at dcwendeavors@gmail.com. Thank you :-)