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"In theory, theory and practice are the same. In practice, they are not." ..."Albert Einstein (1879~1955, Mathematical physicist, Nobel Prize 1921-Physics)"

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 Author Topic: Ray tracing (polygon: range from 3-32 faces)  (Read 4957 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
ahmedelshfie
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 « Embed this message on: April 26, 2010, 05:51:44 pm » posted from:,,Brazil

This applet explain about Ray tracing (polygon: range from 3-32 faces) created by prof Hwang
Modified by Ahmed
Original project Ray tracing (polygon: range from 3-32 faces)

The intensity was calculated for s-wave.
The subroutine for p-wave is also available in the xml source.
Click show all chekbox to show all the rays with equal intensity. (Maximum number of trace can be changed with right slider 3-20)
If the drag mode is checked, you can drag the whole polygin.
otherwise, you can drag each corner to change the shape of the polygon (with restrictions).

You can dray the arrow to change it's location or direction (depends on where you drag).
It can be drag inside the polygon,too!

un-check the checkbox labeled "check" if you want to created inward type polygon shape.

The following simulation assume the ray will not enter the polygon more than once.

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
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• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
 Ray tracing polygon.gif (15.74 KB, 550x598 - viewed 419 times.) « Last Edit: April 26, 2010, 06:22:37 pm by ahmedelshfie » Logged
ahmedelshfie
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 « Embed this message Reply #1 on: April 26, 2010, 06:31:13 pm » posted from:,,Brazil

This applet is Ray tracing for laser light created by prof Hwang
Modified by Ahmed
Original project Ray tracing for laser light
The slider at the top can be used to adjust minimum intensity ray to be drawn/calculated in the simulation.

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list