[Jprogramming] Binary Addresses Method
Raul Miller
rauldmiller at gmail.com
Tue Nov 8 22:18:08 HKT 2011
If you are using j7 and, I think that require'viewmat' will also
require 'graphics/bmp'
That said, if you do not have it installed, you can install the
graphics/bmp package using the package manager.
FYI,
--
Raul
On Tue, Nov 8, 2011 at 7:21 AM, David Vaughan
<purpleblues13 at googlemail.com> wrote:
> load'bmp'
> not found: /Applications/j64-701/addons/graphics/bmp/bmp.ijs
> |file name error: script
> | 0!:0-.&(128}.a.) 1!:1 y[4!:55<'y'
>
> Where can I get the script?
>
> On 8 Nov 2011, at 11:17, Björn Helgason wrote:
>
>> load'bmp'
>> writebmp
>>
>>
>> 2011/11/8 David Vaughan <purpleblues13 at googlemail.com>
>>
>>> Is there something that creates bitmaps? So say I wanted to make a bitmap
>>> of the Mandelbrot set (and I had a 2d array representing each pixel) is
>>> there a verb that will make that into a bitmap?
>>>
>>> ___________________________
>>>
>>> David Vaughan
>>>
>>> On 7 Nov 2011, at 19:25, Raul Miller <rauldmiller at gmail.com> wrote:
>>>
>>>> Sometimes your description seems accurate.
>>>>
>>>> However, consider:
>>>> viewmat i.10
>>>> or
>>>> viewmat 2
>>>>
>>>> --
>>>> Raul
>>>>
>>>> On Mon, Nov 7, 2011 at 1:36 PM, David Vaughan
>>>> <purpleblues13 at googlemail.com> wrote:
>>>>> Am I right in thinking that viewmat takes a 2d array and treats it as
>>> if each number is a pixel and its value is its colour?
>>>>> Thanks.
>>>>>
>>>>> ___________________________
>>>>>
>>>>> David Vaughan
>>>>>
>>>>> On 6 Nov 2011, at 20:12, "Linda Alvord" <lindaalvord at verizon.net>
>>> wrote:
>>>>>
>>>>>> Here's another option:
>>>>>>
>>>>>> S=: 13 :'''+.''{~([:+./*.)"1/~#:i.y'
>>>>>> S
>>>>>> '+.' {~ [: ([: +./ *.)"1/~ [: #: i.
>>>>>>
>>>>>> S 8
>>>>>> ++++++++
>>>>>> +.+.+.+.
>>>>>> ++..++..
>>>>>> +...+...
>>>>>> ++++....
>>>>>> +.+.....
>>>>>> ++......
>>>>>> +.......
>>>>>>
>>>>>> Linda
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> -----Original Message-----
>>>>>> From: programming-bounces at jsoftware.com
>>>>>> [mailto:programming-bounces at jsoftware.com] On Behalf Of Roger Hui
>>>>>> Sent: Saturday, November 05, 2011 2:10 PM
>>>>>> To: Programming forum
>>>>>> Subject: Re: [Jprogramming] Binary Addresses Method
>>>>>>
>>>>>> I believe the "and" in your pseudocode maps to 17 b. (bitwise and).
>>> Thus:
>>>>>> 0 = 17 b./~ i.256
>>>>>>
>>>>>> For example, using the boolean matrix result to index into '.*',
>>>>>>
>>>>>> '.*' {~ 0 = 17 b./~ i.16
>>>>>> ****************
>>>>>> *.*.*.*.*.*.*.*.
>>>>>> **..**..**..**..
>>>>>> *...*...*...*...
>>>>>> ****....****....
>>>>>> *.*.....*.*.....
>>>>>> **......**......
>>>>>> *.......*.......
>>>>>> ********........
>>>>>> *.*.*.*.........
>>>>>> **..**..........
>>>>>> *...*...........
>>>>>> ****............
>>>>>> *.*.............
>>>>>> **..............
>>>>>> *...............
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Sat, Nov 5, 2011 at 10:50 AM, mikel paternain
>>>>>> <mikelpater at hotmail.es>wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> In the amazing book Chaos and Fractals New frontiers of Science, the
>>>>>>> authors described a simple algorithm for making the Sierpinski Gasket.
>>>>>> This
>>>>>>> is perhaps the most short and efficient algorithm (in non tacit
>>>>>> programming
>>>>>>> languages) for computing this fractal.
>>>>>>> The basic algorithm is(in pseudocode):
>>>>>>>
>>>>>>> Define x,y
>>>>>>> For y=0 to 255
>>>>>>> For x=0 to 255
>>>>>>> If /x And y)=0 Then Pset(x,y) //Pset is a function for
>>> drawing
>>>>>>> the point x,y
>>>>>>> Next x
>>>>>>> Next y
>>>>>>> End
>>>>>>>
>>>>>>> With my little experience inJ the question is how translate this code
>>> to J
>>>>>>> . Help me please!
>>>>>>> Thanks in advance!!
>>>>>>>
>>>>>>> Mikel
>>>>>>> ----------------------------------------------------------------------
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>>>>>>>
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>>
>>
>>
>> --
>> Björn Helgason, Verkfræðingur
>> Fornustekkum II
>> 781 Hornafirði,
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>> gsm: +3546985532
>> twitter: @flugfiskur
>> http://groups.google.com/group/J-Programming
>>
>>
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>>
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