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GeoGebra Topic Idea Danish

Coloring of a closed area

John Andreasen shared this idea 6 years ago

Completed

I am fully aware of the fact, that this might be a little off topic, regarding to the nature of GeoGebra ;)

But it would be nice, if it were possible to colourize a closed area - something like this:

d6303dadbf6bd692f79bdd4dba4ba11e

to this...

36f11e6f3e2f426922702f88cf8e4a58

If there is a solution, I will be very happy.

/ John

I like this idea

Comments (12)

Juan Carlos Ponce Campuzano ● 6 years ago

Just find the parametric equation of your figure and then change the color and choose opacity equal to 100.

2872113fa34b472dba1fe6fe805eaf8a

Files: flowerfilledcol...

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mathmagic ● 6 years ago

or defining each zone

Files: foro.ggb

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Juan Carlos Ponce Campuzano ● 6 years ago

Hi, check this:

https://ggbm.at/UVvSHMBy

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mathmagic ● 6 years ago

como insertas el geogebra en el post?

supongo que con algun codigo de iframe pero no lo encuentro

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Juan Carlos Ponce Campuzano ● 6 years ago

Hola

La verdad no tengo idea. Recuerdo haber puesto solo el link y ahora que veo aparece así. Es un misterio.

Por cierto en la versión del teléfono aparece solamente el link. No aparece el iframe. Qué raro.

Saludos

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mathmagic ● 6 years ago

quizas me han escuchado y lo estan preparando

https://help.geogebra.org/t...

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Juan Carlos Ponce Campuzano ● 6 years ago

Another interesting curve is this one:

Curve[(1 / 2 round(sin(3.2θ))² - 1 / 2 round(cos(3.2θ))² + 2.4asin(cos(3.2θ)); θ), θ, 0, 10π]

Kind regards

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John Andreasen ● 6 years ago

Wow - very nice examples - thank you

Regards, John

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Juan Carlos Ponce Campuzano ● 6 years ago

Playing more with parametric functions :)

https://ggbm.at/GgcFP6EC

Regards

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John Andreasen ● 6 years ago

Thanks for the suggestions to the current drawing. It helped me in making the attached file.

But the idea is more general meant... It would be nice if it was possible to fill any closed area with a color ;)

Files: CororedFlower.g...

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Royi ● 6 years ago

What about coloring area between 2 Rays?

Thank You.

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mathmagic ● 6 years ago

with sector (example)

or creating two polygons and intersectpath[]

Files: foro.ggb

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