Vector to Vector halftone effect

[Xhris]

While not a vector result (although I really can't see the need for a vector result), there was once a halftone feature in XaraX for those who still have it. It was a retrograde and oversight on Xara's behalf to have removed it come X1 (it was in bitmap special effects). You can use it to generate a halftone bitmap, and then using bleach transparency, overlay the original to retrieve colour.

[haakoo]

Hi Xhris,

If that's what you want,you can use the two color patterns in the fill gallery
to achieve the same result

Hans

[David O'Neil]

...there was once a halftone feature in XaraX for those who still have it. It was a retrograde and oversight on Xara's behalf to have removed it come X1...

It's still there, albeit under a slightly different set of tools. Create a bitmap copy, two color, non-transparent, error-diffusion.

Therefore, you can create a bitmap version in three steps: create a true-color bitmap of the objects at whatever dpi you want, then create a 2-color version at the same dpi as used for the first copy, then align the copies and apply the transparency to the top, 2-color bitmap.

[Xhris]

Halftoning is clearly misunderstood: halftoning assigns a grid the same size as the image being processed but of a fixed resolution (less than screen resolution) and produces black shapes (somewhat circular) whose size is determined by the blackness of the average colour of the photo pixels underneath the grid element. Blacker colours produce larger black shapes in the grid. Halftoning is not the same as using a 2 colour fill, or error diffusion. It thus cannot be simulated in versions of Xara beyond XaraX as it was inadvertently removed and not missed until now.

[David O'Neil]

Halftoning is clearly misunderstood...

Halftoning is understood. Unfortunately, a digital medium CANNOT reproduce exact halftones, period. The method you stated gives halftones, and was removed by Xara, doesn't give true halftones.

[haakoo]

Hi,

And to add,the original post was about the half tone Effect,not halftone
rasterizing.
I think the goal here was to make it lóók like halftone

Hans

[accessD]

A little more experimentation shows that accessD's RASTER software works much better when pasting to CorelDraw than it does with XaraXtreme. Perhaps Dmitry could comment?

Sorry my comment is little late.

RASTER is OK. It is a latest XXP import bug. That's why paste in Corel is much better. And that's why in latest XXP imported dots are too large

But whole drawing itself is significant bigger then page intentionally to
avoid integer nature of WMF format used to transfer data to XXP.

[Xhris]

Unfortunately, a digital medium CANNOT reproduce exact halftones...

Why?

[haakoo]

Richard Roseman halftone plugin.

[steve.ledger]

Xhris is correct.

We digitally produce true half-toning all the time when printing to the GERBER EDGE Thermal Printer (for example).
It is one of the functions of a RIP.

http://en.wikipedia.org/wiki/Halftone