algorithmic modeling for Rhino
Hallo,
first I want to explain my question. I have an digital image, which I want a pattern of it by creating lines in a specific rectangular.
The dimension of the image and the regtangular is 3:4.
The boundary of each side is divided by several points. So the endpoints of the lines which should create the pattern shell cross these points.
In the attachment there is an example of what I want to create.
It would be great if anybody can help me
THX
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Surely not an easy task. Seems to be very interesting but at the moment you better ask the artist !
Always good to have references of the work you want to copy
Work from Petros Vrellis
http://artof01.com/vrellis/works/knit.html
It is interesting to know that it requires 2 billion of calculations !
Hi Laurent,
thank you for your answer but Petros uses openframework as tool, and it's much more complicated then gh.
I hope someone has a solution for this in gh.
Ciao
Knitting is done by hand, with step-by-step instructions dictated by a computer.
Until I watched the video and read that page, I didn't realize that the gray tones and "fade to black" effect around the face is all achieved by threads. 3000 to 4000 lines, by hand! Wow. Gives me an idea for a different approach though... :)
Was this originally done as drawing by hand, without following any pre-computed pattern?
I thought of connecting all the edge points to each other, filtering out the lines more than a certain distance from any of the defined points. Line density is defined by the 'Count' slider at top-left (the number of points along each edge). This model defines four points: left and right eyes, nose and mouth:
I used the following image, cropped from the painting Girl with a Pearl Earring by Johannes Vermeer:
http://www.uisio.com/wp-content/uploads/2015/01/22pearl-2-1000x520.jpg
http://www.uisio.com/golden-age-of-the-dutch-painting/
Cropped and brought into Rhino using PictureFrame command, then referenced in GH as 'Geo' param:
nice
I am here now, 20 minutes calculations. It begins to look at something !
The process is super simple. Draw a white line on an image. At the end of the line test all lines from the end to another point on the border of the circle (it could be a rectangle). Take the line that brighten the more the image. Repeat (here 400). See left image what is becoming the right image.
Right Image from Danny Santos
http://blog.grainedephotographe.com/shooting-portraits-of-strangers...
Looking very good! I don't quite follow your description of the algorithm though?
Clearly, the base image must show ONLY the face, nothing distracting around it. The hair does that in this image you chose, but the one I used (for example) would work better if all but the face were masked to black.
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