Let's list most
important geometry shapes and see if we can specify their defining parameters
without resorting to metaphors or tanru.
Warning: me not
using geometry IRL for a long time can lead to mistakes below.
- konju - x1 is a cone [shape/form] of
material x2 with vertex x3. Also ellipse, ellipsoid (= konclupa). See also
jesni, djine, sovda, kojna, jganu. Cone
is formed by a linear segment rotating around an "imaginary"
linear segment such that they they intersect with each other on one of
their ends. Cone forms a surface, it is not solid. We need to specify a).
the length of the linear segment and b). either the bottom of the cone
(which is a circle) or the angle between the two linear segments
- djine - x1 is a ring/annulus/torus/circle
[shape/form] of material x2, inside diam. x3, outside diam. x4. Also
ellipse, oval (= jincla); (usage has been for near-circles, such as tight
spirals, even if not closed loops). Also band, belt, encircle (= jinsru).
See also clupa, cukla, dasri, karli, sovda, sruri, konju. Is it terete in cross-section? How to
specify parameters of circles-ellipses?
- cukla x1 is round/circular [2-dimensional
shape/form]; x1 is a disk/circle/ring. Normally used for a filled-in
circle/disk, but emphasis on roundness means that the concept may include
'ring'. See also djine, ranji, bolci, tarmi. Okay, so a more general than ring concept. Seems that we don’t need
a diameter place
- mijgresirji - x1 is a diameter between x2 and x3
of x4. Diameter – do we need it as
a separate brivla?
- linji x1 is a line/among lines [1-dimensional
shape/form] defined by set of points x2. Ray/vector (farli'i or porli'i).
See also kruvi, sirji, jganu, kantu, mokca. Seems to be okay?
- clupa - x1
is a loop/circuit of x2 [material]. Is
it the same as djine? Or it doesn’t need to be solid and can be made out
of soft materials? Do we need its length or radius?
- jganu - x1 is an angle [2-dimensional shape/form]
from vertex x2 subtended by lateral [segment] x3. Also (adjective:) x1 is
angular; x2 corner; (segment x3 can be defined by interval). See also
kojna, linji, konju, mokca. Okay,
so jganu2 specifies the measure of the angle and jganu3 specifies the
length of its sides. Wiktionary says there are two meanings of “angle”:
A.
A. (geometry) A
figure formed by two rays which start from a common point (a plane angle) or by
three planes that intersect (a solid angle). E.g. “the angle between lines A
and B”
B. B.
(geometry) The
measure of such a figure. In the case of a plane angle, this is the ratio (or
proportional to the ratio) of the arc length to the radius of a section of a
circle cut by the two rays, centered at their common point. In the case of a
solid angle, this is the ratio of the surface area to the square of the radius
of the section of a sphere. E.g. “The angle between lines A and B is π/4
radians, or 45 degrees.”
Seems that we can’t express three-planes angle.
- bolci x1 is a ball/sphere/orb/globe [shape/form]
of material x2; x1 is a spherical object [made of x2]. Also round. See
also bliku, cukla, bidju, gunro. Radius
or if ellipsoid or geoid then what?
- tanbo x1 is a board/plank [3-dimensional long
flat rectangle] of material x2. See also bliku, kubli.
- bliku x1 is a block [3-dimensional shape/form] of
material x2, surfaces/sides x3. x3 sides/surfaces should include number,
size, and shape; also polyhedron (= pitybli having flat/planar
sides/surfaces). regular polyhedron (= kubybli, blikubli), brick (=
kitybli); See also tapla, kubli, tanbo, canlu, kojna, sefta, bolci, kurfa,
tarmi.
- kurfa x1 is a right-angled shape/form defined by
set of vertices x2, dimensions x3 (default 2). Also rectangle, square,
rectilinear; square (= kubykurfa, pitkubykurfa), cube (= kurkubli),
rectangle (= clakurfa), rhombus/diamond (= sa'orkurfa, sa'orpitkubli). See
also bliku, kubli, tapla, salpo, tarmi.
- kubli x1 is a cube/regular polyhedron/polygon of
dimensions x2 (def. 3), surfaces/sides x3 (def. 6). (cf. kurfa - needed
for 'cube', bliku for a physical object; tanbo, tapla, tarmi). Seems that bliku3 is better to express
with kubli2 and kubli3? For tanbo it seems to be the only option.
Also I wish to have examples of kubli2, kubli3, kurfa2
fiile dwith something sclearly specified.
Many important shapes are not in gimste. E.g. pyramid.
It was suggested
pirmidi - x1 is a pyramid of base/side x2 and height
x3