Howdy, Stranger!
We are about to switch to a new forum software. Until then we have removed the registration on this forum.
Categories
- All Categories 25.7K
- Announcements & Guidelines 13
- Common Questions 30
- Using Processing 22.1K
- Programming Questions 12.2K
- Questions about Code 6.4K
- How To... 4.2K
- Hello Processing 72
- GLSL / Shaders 292
- Library Questions 4K
- Hardware, Integration & Other Languages 2.7K
- Kinect 668
- Arduino 1K
- Raspberry PI 188
- Questions about Modes 2K
- Android Mode 1.3K
- JavaScript Mode 413
- Python Mode 205
- Questions about Tools 100
- Espanol 5
- Developing Processing 548
- Create & Announce Libraries 211
- Create & Announce Modes 19
- Create & Announce Tools 29
- Summer of Code 2018 93
- Rails Girls Summer of Code 2017 3
- Summer of Code 2017 49
- Summer of Code 2016 4
- Summer of Code 2015 40
- Summer of Code 2014 22
- p5.js 1.6K
- p5.js Programming Questions 947
- p5.js Library Questions 315
- p5.js Development Questions 31
- General 1.4K
- Events & Opportunities 288
- General Discussion 365
Circular Slit Scan
Hi everyone,
I have a question on how I might make a Slit Scan image that moves on a circular path or arc if you will. Ive been looking around on other folks examples, but can't seem to find what Im looking for.
I have a reference from a project that was done a little ago, which I think was done in OF.
Just wondering if its possible in Processing?
reference: http://www.creativeapplications.net/ipad/last-clock-ipad/
Any help would be great!
Answers
those are nice.
yeah, easily possibly. it's just drawing 3 lines, one for hours, one for minutes, one for seconds. these are partial arms, don't actually reach the centre, but all the angles are the same as a normal clock. then you just need 3 different textures (from where? webcam?) for these arms, and draw a thin textured quad rather than a line.
start by drawing the clock arms, working out the angles. then worry about camera feed and texturing.
ok, have hit an old problem - the second() gives an integer, so each second is 6 degrees, which is quite a lot given that the second hand is on the outside, lots of area. you need more of a sweep arm for smoothness... will think about it...
Thanks koogs! As of right now Im just trying to draw one of the clocks and see where that gets me. Are you saying I would start by making simple arcs to figure out where the pixels will lie?
Thanks!
I'm putting in a comment here so I can follow this discussion. I too am working with slit-scanning. And I've also ordered a copy of HOLO -- may come out in December -- from creativeapplications.net.
couldn't get webcam to work so i used a 3600px wide image. will have to think of an alternative (maybe generate the image as it goes...)
it also need hands, maybe drawn on a different layer (difficult as it's currently opengl and i don't think you can create an opengl background image).
Very nice koogs -- though I know it's not what you are after, still it is significant progress. At least you have 3 coencentric circles with different looks -- that's a feat in itself.