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Re: How to roll up multiple Line calls into a loop

  • To: mathgroup at smc.vnet.net
  • Subject: [mg118356] Re: How to roll up multiple Line calls into a loop
  • From: Yves Klett <yves.klett at googlemail.com>
  • Date: Sun, 24 Apr 2011 08:25:01 -0400 (EDT)
  • References: <iorih5$o6t$1@smc.vnet.net>

Hi,

or as an excercise in Part (although the Cases approach is more versatile):

g = Graphics[{Line[{{0, 10}, {1, 0}}], Line[{{0, 9}, {2, 0}}],
    Line[{{0, 8}, {3, 0}}], Line[{{0, 7}, {4, 0}}],
    Line[{{0, 6}, {5, 0}}], Line[{{0, 5}, {6, 0}}],
    Line[{{0, 4}, {7, 0}}], Line[{{0, 3}, {8, 0}}],
    Line[{{0, 2}, {9, 0}}], Line[{{0, 1}, {10, 0}}]}];

g[[1, All, 1, -1]]

Out[3]= {{1, 0}, {2, 0}, {3, 0}, {4, 0}, {5, 0}, {6, 0}, {7, 0}, {8,
  0}, {9, 0}, {10, 0}}

Regards,
Yves

Am 22.04.2011 11:41, schrieb Sol Lederman:
> Hi,
> 
> I'm new to Mathematica.
> 
> I have the following bit of graphics:
> 
>    Graphics[{
>   Line[{{0, 10}, {1, 0}}],
>   Line[{{0, 9}, {2, 0}}],
>   Line[{{0, 8}, {3, 0}}],
>   Line[{{0, 7}, {4, 0}}],
>   Line[{{0, 6}, {5, 0}}],
>   Line[{{0, 5}, {6, 0}}],
>   Line[{{0, 4}, {7, 0}}],
>   Line[{{0, 3}, {8, 0}}],
>   Line[{{0, 2}, {9, 0}}],
>   Line[{{0, 1}, {10, 0}}],
>   }]
> 
> 
> I want to simplify it to do some sort of iteration to compute the end points
> of the lines. I can do this easily in a variety of procedural languages but
> I haven't yet grokked how Mathematica would do this.
> 
> 
> Would someone please show me the short way, I imagine using Table somehow?
> 
> 
> Thanks.
> 
> 
> Sol


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