[Jprogramming] Binary Addresses Method
David Vaughan
purpleblues13 at googlemail.com
Wed Nov 9 00:39:25 HKT 2011
Thanks, I never realised all that stuff was there.
Back to the writebmp verb - what should its operands be?
On 8 Nov 2011, at 15:14, Raul Miller wrote:
> If you are using jhs the package manager is what an old name for what
> is now at link -> jal
>
> Once you are there, you would select a category (Upgradeable,
> Removable, Installed, Not Installed, or even Descriptions -- though
> descriptions does not tell you the installed status of packages and
> does not let you install or upgrade them).
>
> So, anyways, you would search through the categories -- if it's Not
> Installed, you would find the graphics/bmp checkbox and install it.
> If it's Upgradeable, you might want to find the graphics/bmp checkbox
> and upgrade it. If it's in neither of those categories it's going to
> be in Installed and you should not have to do anything.
>
> Note also that if you are using jhs and you have not been using jal
> there is probably a new version of jhs to install (and you can use jal
> to do that).
>
> FYI,
>
> --
> Raul
>
>
>
> On Tue, Nov 8, 2011 at 9:41 AM, David Vaughan
> <purpleblues13 at googlemail.com> wrote:
>> How do I actually update my addons, and what is the package manager?
>>
>> On 8 Nov 2011, at 14:18, Raul Miller wrote:
>>
>>> 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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>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Björn Helgason, Verkfræðingur
>>>>> Fornustekkum II
>>>>> 781 Hornafirði,
>>>>> t-póst: gosinn at gmail.com
>>>>> gsm: +3546985532
>>>>> twitter: @flugfiskur
>>>>> http://groups.google.com/group/J-Programming
>>>>>
>>>>>
>>>>> Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans
>>>>>
>>>>> góður kennari getur stigið á tær án þess að glansinn fari af skónum
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>>
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