def cylinder(image,
coord,
extent,
radius,
color,
shadow=False,
finish=None,
blob=None):
# coord is the center of one end, with the center of the other end
# in the direction determined by extent. blob can be True or a
# blob strength.
import povray as pr
x = _format_appearance(color, finish)
finish, pigment, interior = x
if blob is True:
blob = 1.0
w = image.handle.write
coord1 = _coord2pr(image, coord)
x, y, z = coord1
width, height, depth = extent
coord2 = x + width, y - height, z - depth
name = image._make_object_name()
ns = None
if not shadow:
ns = pr.no_shadow()
w(
pr.declare(
name,
pr.cylinder(
pr.vector(*coord1),
pr.vector(*coord2),
radius,
pigment,
finish,
interior,
ns,
)))
w(pr.object_(name))
# HACK: min_extent and max_extent doesn't work for blobs for some
# reason. Solution is to draw the object so that the extent can
# be calculated, and then draw a blob at the same place.
if blob:
w(
pr._fmt_complex(
"blob",
pr.blob_threshold(0.01),
pr.blob_cylinder(pr.vector(*coord1), pr.vector(*coord2),
radius, blob),
pigment,
finish,
interior,
ns,
))
w("\n")
def pillar(x,y,z,height):
return pv.cylinder([x,y,z],[x,y+height,z],5,"Black")
def burner(x,y,z):
return pv.cylinder([x,y,z],
[x,y+burnerheight,z],
burnerdiameter/2,"Silver"),
def house(x,y,z):
return pv.cylinder([x,y,z],[x,y+2,z],10,"Silver")
