def listItemGenericTest(vals, pgvarfn, comparefn):
rvals = pgvarfn(vals)
rindex = pgf.var_int()
result = pgf.listItem(rvals, rindex)
random.seed(42)
for _ in range(25):
index = random.randint(0, len(vals) - 1)
pgf.assign(rindex, index)
assert comparefn(vals[index], pgf.read(result))
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)
# pgv.show("rectangle", rect)
pgv.show("cloud", cloud)
pgv.show("colored", colored)
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)