Worf

A ricocheting ball with VBA

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Worf

Worf

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Oct 30, 2011
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Worf submitted a new Excel article:

A ricocheting ball with VBA - This article calculates the path of a ricocheting object inside a closed 2D area.

Using trigonometry, it is possible to calculate the path an object will follow when hitting the inside walls of a closed rectangular area. Here are the relevant points of the code:

  • The input variables are the starting position and angle, between 1 and 89 degrees. The values are hardcoded but this is easily modifiable.
  • Basically, the code finds the point where two lines intersect, the object path and one of the four reference lines that form the rectangle.
  • A chart is...
Click to expand...

Read more about this Excel article...
 

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Maybe its a version discrepancy issue but I get "Compile error: User-defined type not defined" referencing line 128, 'Sub PPoint()'. I do still get output which defaults to starting at 16,3 and θ=20 somehow.
 
clamnets said:
Maybe its a version discrepancy issue but I get "Compile error: User-defined type not defined" referencing line 128, 'Sub PPoint()'. I do still get output which defaults to starting at 16,3 and θ=20 somehow.
Click to expand...
I'm realizing that the only part not working is where it is trying to create a PowerPoint. Is there some sort of permission that needs to be changed? Or do I need to do some additional setup?
 
At Excel VBA, add a reference to the Microsoft Power Point library.
 
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