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Re: Arrys vs Vectors [message #30285 is a reply to message #30284]

Tue, 21 December 2010 21:54

281264 is currently offline

281264
Messages: 270
Registered: June 2010
Location: Spain

Experienced Member

Quote:

why cant Line2D have Point2D copies in it?

Actually this is the current design (+Vectors) to store the geometrical classes. I am dubious about the appropriateness of using Array + pointers.

In general the construction of geometrical entities is done from bottom up: first points, then lines/curves that contain end/intermediate points, then surfaces than contain lines or curves, then solid objects that contain surfaces. So, every class needs to reference somehow to its constitutive lower classes ( a line to its two points, etc). So my question is:

1.- either to copy the classes of the lower elements inside the upper element: I think this would imply more space to store de data; this solution can be solved by using Vector as container. I think this option is faster since Vector is faster than Array.

2.-or to use pointers to achieve the same, then the model will be smaller. This needs the usage of Array. This option looks slower than 1.

I don�t know what implications might arise from the usage of 2 instead of 1. What do you think?
Thanks.

Best wishes,
Javier

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[Message index]

		Arrys vs Vectors By: 281264 on Tue, 21 December 2010 10:43
		Re: Arrys vs Vectors By: kohait00 on Tue, 21 December 2010 11:20
		Re: Arrys vs Vectors By: 281264 on Tue, 21 December 2010 11:43
		Re: Arrys vs Vectors By: kohait00 on Tue, 21 December 2010 11:51
		Re: Arrys vs Vectors By: 281264 on Tue, 21 December 2010 12:08
		Re: Arrys vs Vectors By: kohait00 on Tue, 21 December 2010 12:36
		Re: Arrys vs Vectors By: 281264 on Tue, 21 December 2010 17:23
		Re: Arrys vs Vectors By: kohait00 on Tue, 21 December 2010 17:54
		Re: Arrys vs Vectors By: mirek on Sat, 25 December 2010 10:57
		Re: Arrys vs Vectors By: kohait00 on Sun, 26 December 2010 10:07
		Re: Arrys vs Vectors By: 281264 on Mon, 27 December 2010 11:51
		Re: Arrys vs Vectors By: mirek on Mon, 27 December 2010 13:29
		Re: Arrys vs Vectors By: kohait00 on Mon, 27 December 2010 14:15
		Re: Arrys vs Vectors By: gprentice on Mon, 27 December 2010 21:13
		Re: Arrys vs Vectors By: mirek on Mon, 27 December 2010 13:23
		Re: Arrys vs Vectors By: 281264 on Tue, 21 December 2010 18:20
		Re: Arrys vs Vectors By: kohait00 on Tue, 21 December 2010 19:48
		Re: Arrys vs Vectors By: 281264 on Tue, 21 December 2010 21:54
		Re: Arrys vs Vectors By: 281264 on Tue, 21 December 2010 22:04
		Re: Arrys vs Vectors By: kohait00 on Tue, 21 December 2010 22:12
		Re: Arrys vs Vectors By: 281264 on Tue, 21 December 2010 19:04
		Re: Arrys vs Vectors By: Didier on Tue, 21 December 2010 19:45

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