def sphere(): minCoord = pgf.var_float(-1.) maxCoord = pgf.var_float(1.) minpt = pgf.vec3(minCoord, minCoord, minCoord) maxpt = pgf.vec3(maxCoord, maxCoord, maxCoord) box = pgf.box3(minpt, maxpt) npts = pgv.slideri32("Point count", 5, 50, 25) cloud = pgf.randomPointsInBox(box, npts) pgv.show("Point Cloud", cloud) sphere, *_ = pgf.boundingSphere(cloud) return sphere
import pygalfunc as pgf import pygalview as pgv minpt = pgf.var_vec3((-1., -1., -1.)) maxpt = pgf.var_vec3((1., 1., 1.)) box = pgf.box3(minpt, maxpt) npts = pgv.slideri32("Point count", 10, 1000, 100) cloud = pgf.randomPointsInBox(box, npts) hull = pgf.convexHullFromPoints(cloud) pgv.show("Convex Hull", hull) pgv.show("Points", cloud)
import pygalfunc as pgf import pygalview as pgv pt = pgf.var_vec3((0., 0., 0.)) norm = pgf.var_vec3((0., 0., 1.)) plane = pgf.plane(pt, norm) minpt = pgf.var_vec3((-.5, -.5, 0.)) maxpt = pgf.var_vec3((.5, .5, 0.)) box2 = pgf.box2(pgf.var_vec2((-.5, -.5)), pgf.var_vec2((.5, .5))) box3 = pgf.box3(minpt, maxpt) npts = pgv.slideri32("Point count", 5, 50, 25) cloud = pgf.randomPointsInBox(box3, npts) edgeLen = pgf.var_float(.01) rect = pgf.rectangleMesh(plane, box2, edgeLen) distances = pgf.distance(pgf.graft(pgf.vertices(rect)), cloud) sortedDists = pgf.sort(distances, distances) maxDist = pgf.listItem(sortedDists, pgf.sub(pgf.listLength(sortedDists), pgf.var_int(1))) scheme = pgf.var_vec3([ (0., 0., 1.), (0., 1., 0.), (1., 1., 0.), (1., 0., 0.) ]) colors = pgf.mapValueToColor(maxDist, pgf.var_vec2((.5, 1.2)), scheme) colored = pgf.meshWithVertexColors(rect, colors) circ, *_ = pgf.boundingCircle(cloud)
import pygalfunc as pgf import pygalview as pgv POINTS = [ (0, 0, 0), (1, 0, 0), (1, 1, 0), (-.3, 1, 0), (0, -1, 0), ] pts = pgf.var_vec3(POINTS) nums = pgf.toString(pgf.series(pgf.var_int(0), pgf.var_int(1), pgf.listLength(pts))) idxPt = pgf.listItem(pts, pgv.slideri32("Index", 0, len(POINTS) - 1, 0)) circ, *_ = pgf.boundingCircle(pts) pgv.show("indices", pgv.tags(nums, pts)) pgv.show("circle", circ) pgv.show("points", pts) pgv.print("Point at index", idxPt)
def mesh(): relpath = pgf.var_string("../assets/bunny_large.obj") # relpath = pgv.textField("Relative file path"); path = pgf.absPath(relpath) return pgf.loadObjFile(path) m = mesh() s = sphere() # The bounds function is overloaded for both mesh and sphere. meshbbox = pgf.bounds(m) spbbox = pgf.bounds(s) pgv.show("mesh", m) pgv.show("circ", s) pgv.show("mbbox", meshbbox) pgv.show("cbbox", spbbox) ia = pgv.slideri32("int a", 5, 50, 25) ib = pgv.slideri32("int b", 5, 50, 25) fa = pgv.sliderf32("float a", 5., 50., 25.) fb = pgv.sliderf32("float b", 5., 50., 25.) # add function is overloaded for both floats and ints. fsum = pgf.add(fa, fb) isum = pgf.add(ia, ib) pgv.print("fsum", fsum) pgv.print("isum", isum)