Sorry typo. "correct"
Чт, 25 июн 2015, bill lam написал(а):
> Try improve the formula of color addition to something like
>
> > RIGHT=:R=:25 3$,P=: 255<.(8 7 6 5 4{CYAN)+"1/(8 7 6 5 4){MAGENTA
> or
> > RIGHT=:R=:25 3$,P=: 255<. <. %&2 (8 7 6 5 4{CYAN)+"1/(8 7 6 5 4){MAGENTA
>
> anyways it needs to clamp at 255 otherwise RED + RED would
> become DOUBLE RED.
>
> That said, "Corret" depends on your interpretation.
>
> Ср, 24 июн 2015, Linda Alvord написал(а):
> > How do you explain that RIGHT works correctly? Look at the palette, RIGHT.
> >
> > load 'viewmat'
> > N=:<.63.8*i.5
> > BLUE=:(2#"1,.(4#0),N),.N,4#255
> > MAGENTA=:2 0 2{"1 BLUE
> > CYAN=:0 2 2{"1 BLUE
> > RIGHT=:R=:25 3$,P=:(8 7 6 5 4{CYAN)+"1/(8 7 6 5 4){MAGENTA
> > RIGHT
> > 510 510 510
> > 510 446 510
> > 510 382 510
> > 510 318 510
> > 510 255 510
> > 446 510 510
> > 446 446 510
> > 446 382 510
> > 446 318 510
> > 446 255 510
> > 382 510 510
> > 382 446 510
> > 382 382 510
> > 382 318 510
> > 382 255 510
> > 318 510 510
> > 318 446 510
> > 318 382 510
> > 318 318 510
> > 318 255 510
> > 255 510 510
> > 255 446 510
> > 255 382 510
> > 255 318 510
> > 255 255 510
> >
> > This image works with "improper" colors.
> >
> > RIGHT viewmat A=:i.5 5
> >
> > Linda
> >
> >
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]] On Behalf Of Raul Miller
> > Sent: Wednesday, June 24, 2015 2:18 AM
> > To: Programming forum
> > Subject: Re: [Jprogramming] Trouble making patter for a color cube
> >
> > A color, for viewmat, the way you are using it, is a sequence of three
> > integers in the range 0 .. 255.
> >
> > The problem is that none of the sequences in FRONT nor BASE are valid
> > colors.
> >
> > This problem is made more confusing because while BLACK and WHITE are single
> > valued "colors", the others range from black to white with the named color
> > appearing in the middle. And then you're using just parts of those
> > sequences. The grammar may be "simple" but the abstractions are not.
> >
> > So... there are several problems to fix here, but the biggest problem is
> > that your results are not valid colors. If I subtract 255 from each of the
> > values you have there, they are better, but still not correct.
> >
> > Anyways, if I look at the adjacent squares, FRONT should have:
> >
> > at index 0 (upper left corner): 255 0 0 at index 4 (upper right corner):
> > 255 0 255 at index 20 (lower left corner): 255 255 0 at index 24 (lower
> > right corner): 255 255 255
> >
> > Similarly, BASE should have:
> >
> > at index 0: 255 255 0
> > at index 4: 255 255 255
> > at index 20: 0 255 0
> > at index 24: 0 255 255
> >
> > Instead, you have this:
> >
> > 0 4 20 24{ FRONT -255
> > 255 255 255
> > 255 0 255
> > 255 255 0
> > 255 0 0
> > 0 4 20 24{ BASE -255
> > 255 255 255
> > 255 255 0
> > 0 255 255
> > 0 255 0
> >
> > Hopefully this helps...
> >
> > --
> > Raul
> >
> > On Wed, Jun 24, 2015 at 1:37 AM, Linda Alvord <[email protected]>
> > wrote:
> > > Here's a pattern for a color cube. It still has an error in the FRONT
> > > and the BASE. It will look better if that ever gets resolved. It is in
> > simple J.
> > >
> > > load 'viewmat'
> > > N=:<.63.8*i.5
> > > BLACK=:25 3$0
> > > BLUE=:(2#"1,.(4#0),N),.N,4#255
> > > RED=:2 0 1{"1 BLUE
> > > MAGENTA=:2 0 2{"1 BLUE
> > > GREEN=:0 2 1{"1 BLUE
> > > CYAN=:0 2 2{"1 BLUE
> > > YELLOW=:2 2 0{"1 BLUE
> > > WHITE=:25 3$255
> > > A=:i.5 5
> > > B=:5 5$0
> > >
> > > BACK=:25 3$,><"1 (0 1 2 3 4{GREEN)+"1/(0 1 2 3 4){BLUE BACK viewmat A
> > >
> > > TOP=:U=:25 3$,(0 1 2 3 4{RED)+"1/(0 1 2 3 4){BLUE TOP viewmat A;'TOP'
> > >
> > > LEFT=:25 3$,(0 1 2 3 4{GREEN)+"1/(0 1 2 3 4){RED LEFT viewmat A
> > >
> > > RIGHT=:R=:25 3$,P=:(8 7 6 5 4{CYAN)+"1/(8 7 6 5 4){MAGENTA RIGHT
> > > viewmat A
> > >
> > > FRONT=:S=:25 3$,Q=:(8 7 6 5 4{YELLOW)+"1/(8 7 6 5 4){MAGENTA FRONT
> > > viewmat A
> > >
> > > BASE=:25 3$,(8 7 6 5 4{CYAN)+"1/(8 7 6 5 4){YELLOW BASE viewmat A
> > >
> > > WOW=:(B,.(|.A),.B,.B),((|:|.25+A),.(50+A),.(|:|.|:|.75+A),.B)
> > > WOW=:WOW,(B,.(|.|:|.100+A),.B,.B),B,.(125+A),.B,.B
> > > (BACK,LEFT,TOP,RIGHT,FRONT,BASE) viewmat WOW
> > >
> > > Linda
> > >
> > > -----Original Message-----
> > > From: [email protected]
> > > [mailto:[email protected]] On Behalf Of Linda
> > > Alvord
> > > Sent: Sunday, June 14, 2015 8:52 PM
> > > To: [email protected]
> > > Subject: Re: [Jprogramming] Trouble making patter for a color cube
> > >
> > > Wow! It works in jgt also. I expected 6 or 7 separate images. That's
> > > exciting.
> > >
> > > Linda
> > >
> > > -----Original Message-----
> > > From: [email protected]
> > > [mailto:[email protected]] On Behalf Of Linda
> > > Alvord
> > > Sent: Sunday, June 14, 2015 8:41 PM
> > > To: [email protected]
> > > Subject: Re: [Jprogramming] Trouble making patter for a color cube
> > >
> > > This is exactly where I was heading! It is quite beautiful and should
> > "fold"
> > > into a cube.
> > >
> > > I'd like to get it done "my way" and then I'll study yours and see
> > > what will work best for beginners. I'm hoping it will interst young
> > > children to "build" it themselves.
> > >
> > > Thank you! Linda
> > >
> > > -----Original Message-----
> > > From: [email protected]
> > > [mailto:[email protected]] On Behalf Of Raul
> > > Miller
> > > Sent: Sunday, June 14, 2015 10:14 AM
> > > To: Programming forum
> > > Subject: Re: [Jprogramming] Trouble making patter for a color cube
> > >
> > > My apologies.
> > >
> > > I left out the color definition line. (Brian Schott emailed me a note
> > > about this, privately.)
> > >
> > > Here's what I think you need:
> > >
> > > 'BLACK BLUE GREEN CYAN RED MAGENTA YELLOW WHITE'=:#:i.8
> > >
> > > 'BLANK'=: <BLACK;BLACK;BLACK
> > > 'BACK'=: <GREEN;CYAN;BLACK
> > > 'LEFT'=: <GREEN;BLACK;YELLOW
> > > 'TOP'=: <BLACK;BLUE;RED
> > > 'RIGHT'=: <BLUE;CYAN;MAGENTA
> > > 'FRONT'=: <RED;MAGENTA;YELLOW
> > > 'BASE'=: <YELLOW;WHITE;GREEN
> > >
> > > squarecolor=:3 :0
> > > 'O X Y'=. y
> > > colors=. <.255*O+"1]0.25*((i.5)*/Y-"1 O)+"1/(i.5)*/X-"1 O
> > > )
> > >
> > > require'viewmat'
> > > cube=:3 :0
> > > plan=: BASE(<3 1)}FRONT(<2 1)}(LEFT,TOP,RIGHT)1}BACK(<0 1)}4 3$BLANK
> > > colors=: ,/,/>,"_1 each/"1 squarecolor each plan
> > > colors viewmat i.20 15
> > > )
> > >
> > > cube''
> > >
> > > And, once you have that, you may want to do something like this:
> > >
> > > setsize_jviewmat_ 750 1000
> > > savemat_jviewmat_ jpath '~user/color-cube-page.png'
> > >
> > > Thanks,
> > >
> > > --
> > > Raul
> > >
> > > On Sun, Jun 14, 2015 at 2:01 AM, Linda Alvord
> > > <[email protected]>
> > > wrote:
> > >> This time I get an error after a large image of color stripes from
> > >> red to blue.
> > >>
> > >> cube''
> > >> |value error: BLACK
> > >> | colors viewmat i.20 15
> > >>
> > >> I'm not sure how to fix it.
> > >>
> > >> Linda
> > >>
> > >>
> > >> -----Original Message-----
> > >> From: [email protected]
> > >> [mailto:[email protected]] On Behalf Of Raul
> > >> Miller
> > >> Sent: Saturday, June 13, 2015 10:00 AM
> > >> To: Programming forum
> > >> Subject: Re: [Jprogramming] Trouble making patter for a color cube
> > >>
> > >> Ok, fair enough.
> > >>
> > >> New plan:
> > >>
> > >> TOP=:<,.'TOP';<2 2$;:'BLACK BLUE RED MAGENTA'
> > >> BACK=:<,.'BACK';<2 2$;:'GREEN CYAN BLACK BLUE'
> > >> FRONT=:<,.'FRONT';<2 2$;:'RED MAGENTA YELLOW WHITE'
> > >> BASE=:<,.'BASE';<2 2$;:'YELLOW WHITE GREEN CYAN'
> > >> LEFT=:<,.'LEFT';<2 2$;:'GREEN BLACK RED YELLOW'
> > >> RIGHT=:<,.'RIGHT';<2 2$;:'BLUE CYAN MAGENTA WHITE'
> > >> BASE(<3 1)}FRONT(<2 1)}(LEFT,TOP,RIGHT)1}BACK(<0 1)}4 3$a:
> > >>
> > >> Implementation:
> > >>
> > >> 'BLANK'=: <BLACK;BLACK;BLACK
> > >> 'BACK'=: <GREEN;CYAN;BLACK
> > >> 'LEFT'=: <GREEN;BLACK;YELLOW
> > >> 'TOP'=: <BLACK;BLUE;RED
> > >> 'RIGHT'=: <BLUE;CYAN;MAGENTA
> > >> 'FRONT'=: <RED;MAGENTA;YELLOW
> > >> 'BASE'=: <YELLOW;WHITE;GREEN
> > >>
> > >> squarecolor=:3 :0
> > >> 'O X Y'=. y
> > >> colors=. <.255*O+"1]0.25*((i.5)*/Y-"1 O)+"1/(i.5)*/X-"1 O
> > >> )
> > >>
> > >> cube=:3 :0
> > >> plan=: BASE(<3 1)}FRONT(<2 1)}(LEFT,TOP,RIGHT)1}BACK(<0 1)}4 3$BLANK
> > >> ref=. ((75*i.4)+/5*i.3) +each <i.5 5
> > >> colors=. ,/,/>,"_1 each/"1 squarecolor each plan
> > >> colors viewmat i.20 15
> > >> )
> > >>
> > >> cube''
> > >>
> > >> Technically, I didn't need to quote my color names, but I decided to
> > >> leave the quotes in as emphasis (or, perhaps more accurately, to give
> > >> some style to those particular names).
> > >>
> > >> Thanks,
> > >>
> > >> --
> > >> Raul
> > >>
> > >>
> > >> On Sat, Jun 13, 2015 at 5:11 AM, Linda Alvord
> > >> <[email protected]>
> > >> wrote:
> > >>> Raul, I can see that a plan is useful. If you think of Black as no
> > light.
> > >>> Now build three axes. Blue is to the right (0 to 255). Red is
> > >>> forward
> > >> toward
> > >>> you. And green moves up from the base. So
> > >>>
> > >>> I like your floor plan, Now LEFT and RIGHT are not oriented correctly.
> > >>>
> > >>> Try your code in JHS. There you can just place the images where you
> > >>> want them.
> > >>>
> > >>> Linda
> > >>>
> > >>> -----Original Message-----
> > >>> From: [email protected]
> > >>> [mailto:[email protected]] On Behalf Of Linda
> > >> Alvord
> > >>> Sent: Saturday, June 13, 2015 4:40 AM
> > >>> To: [email protected]
> > >>> Subject: Re: [Jprogramming] Trouble making patter for a color cube
> > >>>
> > >>> Also, when I ran your code in jqt, I separated the separate images
> > >>> and
> > >> they
> > >>> work together. However they are a horizontal flip of your layout
> > >>> for the pieces. Linda
> > >>>
> > >>> -----Original Message-----
> > >>> From: [email protected]
> > >>> [mailto:[email protected]] On Behalf Of Linda
> > >> Alvord
> > >>> Sent: Saturday, June 13, 2015 4:25 AM
> > >>> To: [email protected]
> > >>> Subject: Re: [Jprogramming] Trouble making patter for a color cube
> > >>>
> > >>> Raul, I got an error after you layout appeared. Now that I removed
> > >>> that line, I got your six images. They are correct Now put them into
> > >>> your
> > >> layout
> > >>> pattern so that the correct colors are joined. And make one big
> > >>> image with the correct sides joined.
> > >>>
> > >>> It still bothers me that two of the faces in my work aren't correct.
> > >>> Now
> > >> on
> > >>> to study your strategy. Linda
> > >>>
> > >>> -----Original Message-----
> > >>> From: [email protected]
> > >>> [mailto:[email protected]] On Behalf Of Linda
> > >> Alvord
> > >>> Sent: Saturday, June 13, 2015 3:21 AM
> > >>> To: [email protected]
> > >>> Subject: Re: [Jprogramming] Trouble making patter for a color cube
> > >>>
> > >>> This a "Color Cube. It should print in color. And then you cut it
> > >>> out and fold it up and you have a little cube with pretty colors
> > >>> that will show
> > >> you
> > >>> lots of things about how light makescolors. Myc cube will only have
> > >>> 125 colors, but it becomes infinite in your imagination.
> > >>>
> > >>> However, I will give some thought to what you sent. This is why the
> > >>> forum
> > >> is
> > >>> such fun. Each person tackles a problem in a different way.
> > >>>
> > >>> Linda
> > >>>
> > >>> -----Original Message-----
> > >>> From: [email protected]
> > >>> [mailto:[email protected]] On Behalf Of Raul
> > >>> Miller
> > >>> Sent: Saturday, June 13, 2015 1:00 AM
> > >>> To: Programming forum
> > >>> Subject: Re: [Jprogramming] Trouble making patter for a color cube
> > >>>
> > >>> I got a lot of squares running your script, and the one that I
> > >>> really
> > >> liked
> > >>> was the one that was labeled 'TOP'. So I'll base my implementation
> > >>> on that one.
> > >>>
> > >>> For something as complicated as this, I think I'd like to sketch out
> > >>> first how it's supposed to look.
> > >>>
> > >>> So here's my first sketch:
> > >>> (<'BASE')(<3 1)}(<'FRONT')(<2 1)}(;:'LEFT TOP RIGHT')1}(<'BACK')(<0
> > >>> 1)}4
> > >>> 3$a:
> > >>>
> > >>> (beware line wrap - that's supposed to be a single line).
> > >>>
> > >>> But I also need to think about colors. After a little fiddling, I
> > >>> decided
> > >> to
> > >>> go with this:
> > >>>
> > >>> TOP=:<,.'TOP';<2 2$;:'BLACK BLUE RED MAGENTA'
> > >>> BACK=:<,.'BACK';<2 2$;:'GREEN CYAN BLACK BLUE'
> > >>> FRONT=:<,.'FRONT';<2 2$;:'RED MAGENTA YELLOW WHITE'
> > >>> BASE=:<,.'BASE';<2 2$;:'YELLOW WHITE GREEN CYAN'
> > >>> LEFT=:<,.'LEFT';<2 2$;:'BLACK RED GREEN YELLOW'
> > >>> RIGHT=:<,.'RIGHT';<2 2$;:'MAGENTA BLUE WHITE CYAN'
> > >>> BASE(<3 1)}FRONT(<2 1)}(LEFT,TOP,RIGHT)1}BACK(<0 1)}4 3$a:
> > >>>
> > >>> with that out of the way, all I need is a routine to render squares,
> > >>> the rest of the code almost writes itself:
> > >>>
> > >>> 'BLACK BLUE GREEN CYAN RED MAGENTA YELLOW WHITE'=:#:i.8
> > >>>
> > >>> square=:4 :0
> > >>> 'O X Y'=. y
> > >>> colors=. <.255*O+"1,/0.25*((i.5)*/Y-"1 O)+"1/(i.5)*/X-"1 O
> > >>> colors viewmat (i.5 5);x
> > >>> )
> > >>>
> > >>> 'BACK' square GREEN;CYAN;BLACK
> > >>> 'LEFT' square BLACK;RED;GREEN
> > >>> 'TOP' square BLACK;BLUE;RED
> > >>> 'RIGHT' square MAGENTA;BLUE;WHITE
> > >>> 'FRONT' square RED;MAGENTA;YELLOW
> > >>> 'BASE' square YELLOW;WHITE;GREEN
> > >>>
> > >>> Good enough?
> > >>>
> > >>> Thanks,
> > >>>
> > >>> --
> > >>> Raul
> > >>>
> > >>>
> > >>> On Sat, Jun 13, 2015 at 12:04 AM, Linda Alvord
> > >>> <[email protected]>
> > >>> wrote:
> > >>>> I am planning to begin a review of J Tech Grade 3 before
> > >>>> introducing some new topics in Grade 4. I am making a pattern which
> > >>>> could be printed and
> > >>> then
> > >>>> folded to form a color cube. It requires three dimensions for the
> > >>>> three colors of light, Green, Red and Blue. I have the colors
> > >>>> following the order of counting to 8 in base 2. The columns in the
> > >>>> binary array
> > >>> represent
> > >>>> Green, Red and then Blue. This insures that the falues are in order
> > >>>> from dark to light.
> > >>>>
> > >>>>
> > >>>>
> > >>>> The pattern must have six sides. All went well with the first 4
> > >>>> sides, However the final two sides don't cooperate. I suspect there
> > >>>> is some
> > >>> little
> > >>>> problem in viewmat. Here is my progress so far. The front and the
> > >>>> bottom
> > >>> are
> > >>>> the problems. They both involve YELLOW.
> > >>>>
> > >>>>
> > >>>>
> > >>>> As is usual I welcome ways you may know to improve what I am trying
> > >>>> to
> > >> do.
> > >>> I
> > >>>> suggest using JHS to see how this is progressing.
> > >>>>
> > >>>>
> > >>>>
> > >>>> load 'viewmat'
> > >>>>
> > >>>> N=:<.63.8*i.5
> > >>>>
> > >>>> BLACK=:9 3$0
> > >>>>
> > >>>> BLUE=:(2#"1,.(4#0),N),.N,4#255
> > >>>>
> > >>>> RED=:(N,4#255),.2#"1,.(4#0),N
> > >>>>
> > >>>> MAGENTA=:(N,4#255),.((4#0),N),.N,4#255
> > >>>>
> > >>>> GREEN=:((4#0),N),.(N,4#255),.(4#0),N
> > >>>>
> > >>>> CYAN=:((4#0),N),.2#"1 ,.N,4#255
> > >>>>
> > >>>> YELLOW=:(2#"1 ,.N,4#255) ,.(4#0),N
> > >>>>
> > >>>> WHITE=:9 3$255
> > >>>>
> > >>>> (#:i.8);'BLACK','BLUE','RED','MAGENTA','GREEN','CYAN','YELLOW',:'WHITE'
> > >>>>
> > >>>>
> > >>>>
> > >>>> A=:<.0.5*(i.5 5)+i.5 5
> > >>>>
> > >>>>
> > >>>>
> > >>>> BLANK=:25 3$255
> > >>>>
> > >>>> BACK=:25 3$,><"1 (0 1 2 3 4{GREEN)+"1/(0 1 2 3 4){BLUE
> > >>>>
> > >>>> BACK viewmat A
> > >>>>
> > >>>> (BACK,BLANK)viewmat (25+A),.|.A
> > >>>>
> > >>>>
> > >>>>
> > >>>> TOP=:25 3$,><"1 (0 1 2 3 4{RED)+"1/(0 1 2 3 4){BLUE
> > >>>>
> > >>>> TOP viewmat A;'TOP'
> > >>>>
> > >>>> LEFT=:25 3$,><"1 (0 1 2 3 4{GREEN)+"1/(0 1 2 3 4){RED
> > >>>>
> > >>>> LEFT viewmat A
> > >>>>
> > >>>> (TOP,LEFT) viewmat (25+|:|.A),.A
> > >>>>
> > >>>>
> > >>>>
> > >>>> ((TOP,LEFT) viewmat (25+|:|.A),.A),.(BACK,BLANK)viewmat (25+A),.|.A
> > >>>>
> > >>>>
> > >>>>
> > >>>> RIGHT=:R=:25 3$,><"1 P=:(8 7 6 5 4{CYAN)+"1/(8 7 6 5 4){MAGENTA
> > >>>>
> > >>>> RIGHT viewmat A
> > >>>>
> > >>>>
> > >>>>
> > >>>> FRONT=:S=:25 3$,><"1 Q=:(8 7 6 5 4{YELLOW)+"1/(8 7 6 5 4){MAGENTA
> > >>>>
> > >>>> FRONT viewmat A
> > >>>>
> > >>>>
> > >>>>
> > >>>> BOTTOM=:25 3$,><"1 (8 7 6 5 4{CYAN)+"1/(8 7 6 5 4){YELLOW
> > >>>>
> > >>>> BOTTOM viewmat A
> > >>>>
> > >>>>
> > >>>>
> > >>>> R;S
> > >>>>
> > >>>>
> > >>>>
> > >>>> I included R;S to show how close the good and the bad faces are
> > >>>> prior to using viewmat.
> > >>>>
> > >>>>
> > >>>>
> > >>>> Linda
> > >>>>
> > >>>>
> > >>>>
> > >>>> -------------------------------------------------------------------
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> --
> regards,
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