How to get Effect>Pixelate>Halftone Colour in one color 1

[darart]

Effect>Pixelate>Halftone Colour(on a vector image)in Illustrator.
I tried this effect on a gradient filled shape (solid color to transparent). Looks cool. However I get a spray of different colored dots or channels. I want to create dot pattern fill gradient to look like one color with no screen dot cross overs.I am create a POP Art effect. Is there a way to do this in Illustrator? And can it print CMYK? as a vector image?

 

[itchybug]

Well kinda and kinda not. You can make all the screen angles identical in the dialog box, then they'll at least fall on top of each other...

http://www.itchybug.com

 

[apepp]

...my understnading of the color halftone filter is that the object needs to be rasterized first to use the filter...

...have you tried rasterizing a black to white gradient to greyscale first? rasterize it at 1200dpi...

...apply the halftone filter, input an angle to only the first input field available, all other fields can be zero'd out. Adjust the max radius to make the dots bigger or smaller...

...when happy with the size of your screen angle and dot size, rasterize it again but this time to a bitmap with a transparent background if you wish...

...then you can colorize this to any colour you wish either as a spot colour or a mix of process colours...

andrew

 

[apepp]

...yes just remembered, this of course can be traced if you have CS2 to convert it to vector, adjust the path fitting and minimum area options to one pixel with 'detailed illustration' in black and white mode...

...expand the trace to reveal the paths...

...you can then simplify the path (object > path > simplify) to reduce the number of points used...

andrew

 

[itchybug]

One way that will give you a clean halftone pattern using vector objects:

1. Draw a circle; 2. Copy the circle and drag the copy to where the top anchor of the copy aligns with the right anchor of the original; 3. Select both, copy, and align so the top anchor of the copy aligns with the bottom anchor of the original:

4. Repeat the copying/pasting until you have a nice little row of circles; 5. Select the entire row, and make a copy waaaay to the right:

6. Select all, give it all a black fill, remove the stroke; 7. Select the right row, and hit Ctrl-Alt-Shift-D (Object>Transform>Transform Each) and set the scale for 2% vertical and 2% horizontal (Hard to see them lil specks for a moment...):

8. Select the left row of big circles, group them; 9. Select the right row of small specks, group them too; 10. Select all, make a blend:

Adjust as needed. You'll notice that if you drag the right row to the right, more rows will blend in.

HTH

Bert

http://www.itchybug.com

 

[samjazz]

That's a brilliant method, Bert. I've been scratching my head for ages trying to figure out an effective way to create an offset vector halftone. Other suggestions have been super labor intensive. Thanks for this.

 

[itchybug]

No problem, Samjazz.

http://www.itchybug.com

 

[apepp]

...lovely post bert, another great tip from the illustrator guru...

...darart will find this useful for sure when working on his popart creations...

andrew