Bill, There seems to be no problem with RIGHT. It is a reasonable face for the cube. However, the prpblems are with the behavior of FRONT and BASE.
If you run the code in JHS it is easier to follow the two problems I encountered. Your first definition was just white space. The second was very pale. Look at BLUE viewmat i.9 to see a grade from blue to white. Linda -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of bill lam Sent: Thursday, June 25, 2015 1:10 AM To: [email protected] Subject: Re: [Jprogramming] Trouble making patter for a color cube 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 > > >>>> > > >>>> > > >>>> > > >>>> --------------------------------------------------------------- > > >>>> ---- > > >>>> - > > >>>> -- For information about J forums see > > >>>> http://www.jsoftware.com/forums.htm > > >>> ---------------------------------------------------------------- > > >>> ---- > > >>> - > > >>> - For information about J forums see > > >>> http://www.jsoftware.com/forums.htm > > >>> > > >>> ---------------------------------------------------------------- > > >>> ---- > > >>> - > > >>> - For information about J forums see > > >>> http://www.jsoftware.com/forums.htm > > >>> > > >>> ---------------------------------------------------------------- > > >>> ---- > > >>> - > > >>> - For information about J forums see > > >>> http://www.jsoftware.com/forums.htm > > >>> > > >>> ---------------------------------------------------------------- > > >>> ---- > > >>> - > > >>> - For information about J forums see > > >>> http://www.jsoftware.com/forums.htm > > >>> > > >>> ---------------------------------------------------------------- > > >>> ---- > > >>> - > > >>> - For information about J forums see > > >>> http://www.jsoftware.com/forums.htm > > >> ----------------------------------------------------------------- > > >> ---- > > >> - For information about J forums see > > >> http://www.jsoftware.com/forums.htm > > >> > > >> ----------------------------------------------------------------- > > >> ---- > > >> - For information about J forums see > > >> http://www.jsoftware.com/forums.htm > > > ------------------------------------------------------------------ > > > ---- For information about J forums see > > > http://www.jsoftware.com/forums.htm > > > > > > ------------------------------------------------------------------ > > > ---- For information about J forums see > > > http://www.jsoftware.com/forums.htm > > > > > > ------------------------------------------------------------------ > > > ---- For information about J forums see > > > http://www.jsoftware.com/forums.htm > > > > > > ------------------------------------------------------------------ > > > ---- For information about J forums see > > > http://www.jsoftware.com/forums.htm > > -------------------------------------------------------------------- > > -- For information about J forums see > > http://www.jsoftware.com/forums.htm > > > > -------------------------------------------------------------------- > > -- For information about J forums see > > http://www.jsoftware.com/forums.htm > > -- > regards, > ==================================================== > GPG key 1024D/4434BAB3 2008-08-24 > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 gpg --keyserver > subkeys.pgp.net --armor --export 4434BAB3 -- regards, ==================================================== GPG key 1024D/4434BAB3 2008-08-24 gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
