10 Replies Latest reply on Dec 9, 2009 11:34 PM by williamdossa

# Particles: Struggling with simple brushes and patterns! Can you help me?

Hello,

I am learning Illustrator CS3 and I would like to reproduce the picture below.

I know how to do it manually but I'd like to learn how to make different size dots inside an ellipse. Could you please tell me how to do it?

Thank you very much

William

• ###### 1. Re: Particles: Struggling with simple brushes and patterns! Can you help me?

I don't know of a method that can do collision detection (Flash could do it). So for this kind of simple forms I would just draw the ovals and arrange them.

That example looks like the ovals are applied to a 3D-ball-shape.

• ###### 2. Re: Particles: Struggling with simple brushes and patterns! Can you help me?

One of the most important keys to constructing this is to remember than an ellipse which represents a tilted circle must always have its minor axis aligned to its thrust line. In the case of circles on the surface of a sphere, the thrust line would be the radius of the sphere which pierces the center of the circle on its surface.

In your example, the ellipses near the horizon of the sphere are not really accute enough, so the spherical impression is diminished.

This PDF shows one way to construct that. Don't take this for mechanical accuracy. The Blend and alignment operation is not strictly accurate; for that, you would need to scale the width of each of the initial ellipses by the sine of their rotational angle toward/away from the picture plane. But the method shown is quick and easy, and makes a reasonably convincing facimile.

Toggle on/off the Dialogs Layer in the PDF to show/hide the settings used in the example.

JET

• ###### 3. Re: Particles: Struggling with simple brushes and patterns! Can you help me?

Maybe this is very simple to do.

make your circle ellipse a symbol

then use the Symbol Sprayer to distribute the ellipse

then use the Symbol Sizer to randomly resize the distributed ellipses

you can also use the Symbol Stainer to recolor the the various distributed symbols

then make that art a symbol

and finally map that symbol to a 3D revolved globe.

the symbols tools can be individually adjusted to suit your purposes ny double clicking on the in the tool panel

Would you like to see a movie posted?

• ###### 4. Re: Particles: Struggling with simple brushes and patterns! Can you help me?

Would you like to see a movie posted?

Would be interesting Wade... but could you reduce the screen size a bit? Thanks...

• ###### 5. Re: Particles: Struggling with simple brushes and patterns! Can you help me?

Let's see if this is user friendly and works for you I will look into editing the movies in Premiere Pro if they are too big and lcating them on my web server so I don't have to delete them.

http://mysite.verizon.net/wzphoto/Symbol.mov

Here it is with a white fill rectangle behind the symbol pattern and grouped and turned into a symbol and that mapped to the globe.

I do not hink the art posted by the OP was mapped in AI but it was mapped perhaps in Photoshop where you can do this as well.

• ###### 6. Re: Particles: Struggling with simple brushes and patterns! Can you help me?

Let's see if this is user friendly and works for you I will look into editing the movies in Premiere Pro if they are too big and lcating them on my web server so I don't have to delete them.

However, if you can host your various tuts... brilliant! Would be a great permanent resource that even others could point to...

Regards and all the best...

Shunith

• ###### 8. Re: Particles: Struggling with simple brushes and patterns! Can you help me?

I will be removing the video in a couple of datys so hopefully the OP will look.

• ###### 9. Re: Particles: Struggling with simple brushes and patterns! Can you help me?

Cheers...

SD

• ###### 10. Re: Particles: Struggling with simple brushes and patterns! Can you help me?

Hi guys,

Thank you all for your answers! I didn't have time to reply before but i watched your video. I really like the way you make the circles. I'm gonna save this video if you don't mind.

Just to let you know that I made those circles manually but i found another way to make it 3D from another forum. In fact, you just have make two layers of circles. Then, you select those two and you wrap them with the option "fisheye". Finally, you send one layer to the back and the other to the front. By doing so, we really have a 3D effect, more than the 3D effect option itself...

Try it to see!

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Thanks

William