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  • Escher Knot

    From Francois LE COAT@lecoat@atari.org to comp.sys.atari.st on Tue Feb 6 17:00:03 2024
    From Newsgroup: comp.sys.atari.st

    Hi,
    Happy New Year 2024 :-)
    I regularly publish surfaces on Sketchfab, exporting them directly
    from Eureka 2.12 in VRML2. This is what the Escher knot gives...
    https://skfb.ly/D9Mu
    But it is also possible to represent the same Escher knot with
    MathMod and export it as .OBJ. We can then import it into the
    Sketchfab WEB site. This is what it gives...
    https://skfb.ly/oQGCn
    The difference between Eureka 2.12 and MathMod is that my software
    takes into account the color of the facets of the exported object.
    The surfaces of Eureka 2.12 can be imported using the MathMod
    software which is there:
    https://github.com/parisolab/mathmod
    I recommend it. It's free software, which is very useful to me.
    --
    Frantois LE COAT
    Author of Eureka 2.12 (2D Graph Describer, 3D Modeller) https://eureka.atari.org/
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Michael Eibl@ikinciadi-news@yahoo.de to comp.sys.atari.st on Wed Feb 7 22:14:27 2024
    From Newsgroup: comp.sys.atari.st

    It is good to see that there is still life. Thanks for all your work!
    Michael
    Am 06.02.24 um 17:00 schrieb Francois LE COAT:
    Hi,
    Happy New Year 2024 :-)

    I regularly publish surfaces on Sketchfab, exporting them directly
    from Eureka 2.12 in VRML2. This is what the Escher knot gives...

    -a-a-a-ahttps://skfb.ly/D9Mu

    But it is also possible to represent the same Escher knot with
    MathMod and export it as .OBJ. We can then import it into the
    Sketchfab WEB site. This is what it gives...

    -a-a-a-ahttps://skfb.ly/oQGCn

    The difference between Eureka 2.12 and MathMod is that my software
    takes into account the color of the facets of the exported object.
    The surfaces of Eureka 2.12 can be imported using the MathMod
    software which is there:

    -a-a-a-ahttps://github.com/parisolab/mathmod

    I recommend it. It's free software, which is very useful to me.

    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Francois LE COAT@lecoat@atari.org to comp.sys.atari.st on Tue Feb 13 17:00:04 2024
    From Newsgroup: comp.sys.atari.st

    Hi,
    Michael Eibl writes:
    It is good to see that there is still life. Thanks for all your work!

    Francois LE COAT wrote:
    I regularly publish surfaces on Sketchfab, exporting them directly
    from Eureka 2.12 in VRML2. This is what the Escher knot gives...

    aaaaahttps://skfb.ly/D9Mu

    But it is also possible to represent the same Escher knot with
    MathMod and export it as .OBJ. We can then import it into the
    Sketchfab WEB site. This is what it gives...

    aaaaahttps://skfb.ly/oQGCn

    The difference between Eureka 2.12 and MathMod is that my software
    takes into account the color of the facets of the exported object.
    The surfaces of Eureka 2.12 can be imported using the MathMod
    software which is there:

    aaaaahttps://github.com/parisolab/mathmod

    I recommend it. It's free software, which is very useful to me.
    Thank you for the answer. Here is the rest of the story.
    It is also possible to represent the same Escher knot with the
    Mathematica software and export it to .3DS. We can then import it
    on the Sketchfab WEB site. This is what it gives...
    https://skfb.ly/oQRpr
    The difference between Eureka 2.12 and Mathematica is that my software
    takes into account the color of the facets of the exported object. I
    don't know if it's possible to do with this kind of software.
    Regards,
    --
    Frantois LE COAT
    Author of Eureka 2.12 (2D Graph Describer, 3D Modeller) https://eureka.atari.org/
    --- Synchronet 3.21d-Linux NewsLink 1.2
  • From Francois LE COAT@lecoat@atari.org to comp.sys.atari.st on Wed Feb 14 17:00:21 2024
    From Newsgroup: comp.sys.atari.st

    Hi,
    Michael Eibl writes:
    It is good to see that there is still life. Thanks for all your work!

    Francois LE COAT wrote:
    I regularly publish surfaces on Sketchfab, exporting them directly
    from Eureka 2.12 in VRML2. This is what the Escher knot gives...

    aaaaahttps://skfb.ly/D9Mu

    But it is also possible to represent the same Escher knot with
    MathMod and export it as .OBJ. We can then import it into the
    Sketchfab WEB site. This is what it gives...

    aaaaahttps://skfb.ly/oQGCn

    The difference between Eureka 2.12 and MathMod is that my software
    takes into account the color of the facets of the exported object.
    The surfaces of Eureka 2.12 can be imported using the MathMod
    software which is there:

    aaaaahttps://github.com/parisolab/mathmod

    I recommend it. It's free software, which is very useful to me.

    Thank you for the answer. Here is the rest of the story.

    It is also possible to represent the same Escher knot with the
    Mathematica software and export it to .3DS. We can then import it
    on the Sketchfab WEB site. This is what it gives...

    aaaahttps://skfb.ly/oQRpr

    The difference between Eureka 2.12 and Mathematica is that my software
    takes into account the color of the facets of the exported object. I
    don't know if it's possible to do with this kind of software.
    Giving a color to each facet of a surface allows you to create a 3D
    object like this one...
    https://skfb.ly/oPExn
    It was built with a height field which is a surface with a relief, and
    an image, using Eureka 2.12 software. I don't know it can be done with
    any other mathematical software, apart from mine. There are other
    examples on Sketchfab =)
    Regards,
    --
    Frantois LE COAT
    Author of Eureka 2.12 (2D Graph Describer, 3D Modeller) https://eureka.atari.org/
    --- Synchronet 3.21d-Linux NewsLink 1.2