US 11,701,831 B2
Method and system for rendering data for addressable dispensing
Nur Arad, Tel-Aviv (IL); Ore Shtalrid, Yavne (IL); Yossi Koren, Jerusalem (IL); Blake Zachary Courter, Reading, MA (US); and Stephen Demai, Cambridge, MA (US)
Assigned to Stratasys Ltd., Rehovot (IL)
Appl. No. 16/642,900
Filed by Stratasys Ltd., Rehovot (IL)
PCT Filed Aug. 27, 2018, PCT No. PCT/IL2018/050946
§ 371(c)(1), (2) Date Feb. 28, 2020,
PCT Pub. No. WO2019/043696, PCT Pub. Date Mar. 7, 2019.
Claims priority of provisional application 62/551,279, filed on Aug. 29, 2017.
Prior Publication US 2020/0346411 A1, Nov. 5, 2020
Int. Cl. B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B29C 64/112 (2017.01)
CPC B29C 64/393 (2017.08) [B29C 64/112 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12)] 16 Claims
OG exemplary drawing
 
1. A method of rendering data for addressable dispensing of material over a working surface, the method comprising:
receiving input image data arranged grid-wise over a grid of picture-elements;
generating an initial map describing a distance field perpendicular to the working surface and having a plurality of map-elements each storing distance information corresponding to one picture-element;
for each picture-element of at least a portion of said picture-elements:
linearly scanning said map independently along a first axis and along a second axis, and updating a respective map-element based on values of map-elements visited during said scan, and designating a material to be dispensed based at least in part on said respective map-element, wherein said designating is according to a modulating function selected from the group consisting of a noise function, a simplex noise function, an open simplex noise function, a Worley noise function, a Perlin noise function, a wavelet noise function, a periodic function and an aperiodic function.