K3DSurf forum

nextstep · Site Admin Joined: 06 Jan 2007 Posts: 539

Hi all,
MathMod-3.1(Win64/WIN32) is available for download from:
https://sourceforge.net/projects/mathmod/

Changelog for MathMod-3.1 (11/03/2015)
1) Add Perlin/Worley Noise (NoiseP and NoiseW) functions support for parametric surfaces:
(see "FresnelNoise", "BreatherNoise" and "TorusNoise" examples)
2) Bug fixes
_________________
Cheers,
Abderrahman

denisc · Joined: 24 Apr 2013 Posts: 92

hello

a message error to iso

noise duplin

error at position 0

( very nice prog a little time is well to shut down the runtime with k3D)

ps

Have you need of my iso formula of icosaedron because i post and nothing else read !,

may i post a new tread for that ?

cheers

denisc

nextstep · Site Admin Joined: 06 Jan 2007 Posts: 539

Hi,

denisc · Joined: 24 Apr 2013 Posts: 92

hello nextstep

i was a little tired , i would just say that,

it takes some time to get rid of habits with K3D and appreciate more mathmod .

and also the new fonctions .

In the future , a save to anim in avi format will be possible?

cheers

denisc

nextstep · Site Admin Joined: 06 Jan 2007 Posts: 539

Hi,

denisc · Joined: 24 Apr 2013 Posts: 92

hello nexsteps

your convert K3Dsurf don't work for me.

For all of my tryout i am a x.js empty

just that in x.js/ { "MathModels": [ ]}

and when i try to copy the content of x.k3ds on [ ]} = [formulax ]}

i am a meesage error?

THe scrit of schwarz
{
"Iso3D": {
"Cnd": [
"(x^2 + y^2) > cos(t*pi)*5.0"
],
"Component": [
"Schwarz"
],
"Description": [
"This example shows the minimum required fields "
],
"Fxyz": [
" cos(x) + cos(y) + cos(z)"
],
"Name": [
"Schwarz"
],
"Xmax": [
" 4"
],
"Xmin": [
"-4"
],
"Ymax": [
" 4"
],
"Ymin": [
"-4"
],
"Zmax": [
" 4"
],
"Zmin": [
"-4"
]
}
}
in iso is more complex

and for parametric

coinus

{
"Param3D": {
"Component": [
"Cosinus"
],
"Description": [
"Descriptionofthemodel"
],
"Fx": [
"u"
],
"Fy": [
"v"
],
"Fz": [
"-sin(pi*((u)^2+(v)^2))/3"
],
"Name": [
"Cosinus"
],
"Umax": [
"1"
],
"Umin": [
"-1"
],
"Vmax": [
"1"
],
"Vmin": [
"-1"
]
}
}

for k

cosinus

X():u
Y():sin(pi*((u)^2+(v)^2))/2
Z():v
[u]:-1, 1
[v]:-1, 1

and sw

Name: Schwartz
/*
Author: Schwartz ...
*/
F(): cos(x) + cos(y) + cos(z)
[x]: -4 , 4
[y]: -4 , 4
[z]: -4 , 4
;

YOur converter should be perhaps more perfect?

ps (you don"t know the menber of try out for one figure i am saved on my disk and i thintk the other users, if i have to convert all , i m going to spend the same time of the creation of all my old saved!! It is not possible !!)

cheers

sorry formy english

denisc

nextstep · Site Admin Joined: 06 Jan 2007 Posts: 539

Hi denisc,
From what you said, it looks like you have problems when converting your old .k3ds files to the new MathMod's file format .js , right?
I took your two examples and saved them in a test.k3ds file :

denisc · Joined: 24 Apr 2013 Posts: 92

hello next steps

thanks for your comment

i retry the js convert.

That work with iso formula , but not for parametric formula when you load json

script.

because you are just : { "MathModels": [ ]} write in the json script

(In the json scipt with iso, you are the good formula in

{
"MathModels": [{
"Iso3D": {
"Description ": ["Author: Schwartz ..."],
"Name": ["Schwartz"],
"Component": ["Schwartz"],
"Fxyz": ["cos(x) + cos(y) + cos(z)"],
"Cnd": [""],
"Xmin": ["-4 "],
"Xmax": [" 4"],
"Ymin": ["-4 "],
"Ymax": [" 4"],
"Zmin": ["-4 "],
"Zmax": [" 4"]
}

and para

{ "MathModels": [ ]}

try to convert and reopen your examples in 2 separate json .

one for iso, second for parametric .

cheers

cheers

ps

i am one parametric json correctly write?

But i am a message error when i try to reopen

illegal number at position 17

the difference with other are just values.

x

ex

1/ X = sin(u)

Y= sin(u)

Z= sin(u)

not work

{ "MathModels": [ ]}

2/ X = 3*sin(u)

Y= 3*sin(u)

XZ= 3*sin(u)

work with mesage error when reopen

(all parametric formulas work in k3dsurf)

one exemple

X():1*cos(u)*(1+1*cos(1/5*u))

Y():1*sin(u)*(1+1*cos(1/5*u))

Z():0
[u]:-5*pi, 5*pi
[v]:,

my formula saved in

CONCHOÏDE DE ROSACE1-5 .k3ds

my CONCHOÏDE DE ROSACE1-5 .js

{ "MathModels": [ ]}

all my parametric formula(not exemples)
had not tiles( *-----)

nextstep · Site Admin Joined: 06 Jan 2007 Posts: 539

Hi,

denisc · Joined: 24 Apr 2013 Posts: 92

hello

it's not the solution

i change my formula and save with k3dsurf

X():1*cos(u)*(1+1*cos(1/5*u))

Y():1*sin(u)*(1+1*cos(1/5*u))

Z():0

[u]:-5*pi, 5*pi
[v]:0, 0

and when i convert with mathmod 3.1

{ "MathModels": [ ]}

i am not
{
"Param3D": {
"Description ": [""],
"Name": ["_2"],
"Component": ["_2"],
"Fx": ["1*cos(u)*(1+1*cos(1/5*u))"],
"Fy": ["1*sin(u)*(1+1*cos(1/5*u))"],
"Fz": ["0"],
"Cnd": [""],
"Umin": ["-5*pi"],
"Umax": [" 5*pi"],
"Vmin": ["0"],
"Vmax": ["0"]
}
}]
}

why you not test all with k3dsurf in first position?

nextstep · Site Admin Joined: 06 Jan 2007 Posts: 539

Hi,

denisc · Joined: 24 Apr 2013 Posts: 92

i not understand what you say?

I am no probleme in special way?

if you write your k3dsurf (.k3ds) , first with a wordpad or editor of text and

save with . with K3ds prog first ;in final , it's not the same result .??

i not understand what , but it is the result is very different???!!

t

denisc · Joined: 24 Apr 2013 Posts: 92

hy

another exemple

i try with your formula of torus

In K3ds v0.6.2

you can do

edit and after save as , i save as y.k3ds (you must make the( ).k3ds )

X() Sad

1+ 0.5*cos(u))*cos(v)

Y():0.5*sin(u)

Z() Sad

1+ 0.5*cos(u))*sin(v)

[u]:0, 2*pi

[v]:0, 2*pi

i try to convert with mathmod 3.1

when i open my y.js

you can see { "MathModels": [ ]} for result

if i try all your exemples in iso formula , that work find.

i not understand, where is the probleme fondamental in all?

i am on w7 pro, not 64 bit.

I will test on W8 64?

(perhaps a little bug when K3D write the text)

' i not understand how you have

{
"Param3D": {
"Description ": [""],
"Name": ["_2"],
"Component": ["_2"],
"Fx": ["1*cos(u)*(1+1*cos(1/5*u))"],
"Fy": ["1*sin(u)*(1+1*cos(1/5*u))"],
"Fz": ["0"],
"Cnd": [""],
"Umin": ["-5*pi"],
"Umax": [" 5*pi"],
"Vmin": [""],
"Vmax": [""]
}

for me , i am a empty .js

just
{ "MathModels": [ ]}

in fact the .k3ds had not be converted?)

denisc · Joined: 24 Apr 2013 Posts: 92

i try with windows 8 64bit and mahmod 3.1 64 bits with K3dsurfV0.6.2

with klein

i am the same result

the file.js was not converted.?

just { "MathModels": [ ]} write on

perhaps on my last posts i was a little confused (sorry for that)

but it's a true probleme?

CA serait bien , si d'autres personnes pouvaient confirmer , ca etait fait sur 2 ordi differents.

that would be nice if others could confirm, i used 2 differents computers.

nextstep · Site Admin Joined: 06 Jan 2007 Posts: 539

Hi denisc,
I think it's not working for you because you didn't add ";" at the end of the parametric description. Try to convert this, it should work: