Wednesday 16 April 2014

week//five
TASK TWO

so a very very late submission&post of the task due before we split for the break. i was no where near close to finished and had not reached the goal i intended to - in fact wasted time trying to build a pointless definition that wouldn't have worked out, come 3D printing. i needed to review what needed to be done and the following is the out come. 

grasshopper file found here. *NB Turn on the lofts and create a point next to the bounding box, and apply it to the attractor point.
https://www.dropbox.com/s/dkj0dwn37ac0xof/virili_sean_task2.gh

part1 geometry
the first step allowed me to figure out the geometry i was after and apply thickness and some extra parameters that varied its height, fillet and rotation, which i hoped the attractor point would control later on. i initially thought i can use the completed geometry and apply them onto a surface but this failed (or i'm simply not sure how to go about achieving it) forcing me to go back and remodel the geometry from a tri grid. this wasn't much of an issue as i could mostly copy the logic almost as is, to get the geometry back up with the same properties.


all i did here was start with a polygon with a segment definition of 3 for a triangle. copied the definition to make a smaller triangle and loft the two, whilst offsetting them to achieve thickness. in the process i have dragged out buttons to control the parameters for height, it's fillet (from triangle to circular form) and the rotation (to 'skew' the lofted surface. in retrospect i should have figured one thing out - as the fillet increases, the rotation of the triangle disappears since the top portion turns into a circle. 


part2 grid+geometry+attractor pt+morph
 the definition is split into 3 main components. i) producing a desired geometry onto the trigrid ii) creating the definition for the attractor point and iii) the surface to have the grid morphed onto. the basic format from part 1 was used to recreate the geometry onto the trigrid. this was absolutely necessary in order to morph them onto a surface. The area where i required assistance was the creating a reference for the trigrid onto the surface in order to extract reference points for the attractor point to take affect. once the point were listed the distance between the attractor point and centre points were sorted and the 3 parameters of height rotation and fillet were multiplied onto the surface. the final product shows the openings of the geometry changing from a regular triangle to a heavily filleted one forming a circle as the model increases in its height.   the last image on the bottom is a good indicator of the attractor point functioning. 







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