Vector2 — Aspose.3D FOSS for Python API Reference
Vector2 er en dobbelpresisjon 2-komponent vektor med x og y komponenter. Den brukes primært til å lagre UV-teksturkoordinater i VertexElementUV lag og som tangenttype for KeyFrame.next_in_tangent og KeyFrame.out_tangent i animasjonskurver.
: aspose.threed.utilities
from aspose.threed.utilities import Vector2Vector2() | (0.0, 0.0) |
Vector2(x, y) | Konstruktør fra to float verdier |
x | float | X-komponent (U i teksturkoordinater) |
y | float | Y-komponent (V i teksturkoordinater) |
length | float | Euklidisk lengde (sqrt(x²+y²)), kun lesbar |
length2 | float | Kvadrert lengde (x²+y²), kun lesbar |
| Returtype | ||
|---|---|---|
set(x, y) | None | Setter begge komponenter på stedet |
Vector2.parse(s) | Vector2 | Statisk. Tolker "x y" strengrepresentasjon |
Indekstilgang
Komponenter kan nås via heltallsindeks: v[0] → x, v[1] → y.
from aspose.threed.utilities import Vector2
# Create UV coordinates
uv_bottom_left = Vector2(0.0, 0.0)
uv_bottom_right = Vector2(1.0, 0.0)
uv_top_right = Vector2(1.0, 1.0)
# Length
print(uv_bottom_right.length) # 1.0
# Modify in place
uv_bottom_left.set(0.1, 0.1)
# or via property
uv_bottom_left.x = 0.05
# Use in a VertexElementUV data array
from aspose.threed import Scene
from aspose.threed.entities import Mesh
from aspose.threed.utilities import Vector4
from aspose.threed.entities import VertexElementType
scene = Scene()
mesh = Mesh()
mesh.control_points.append(Vector4(0, 0, 0, 1))
mesh.control_points.append(Vector4(1, 0, 0, 1))
mesh.control_points.append(Vector4(0.5, 1, 0, 1))
mesh.create_polygon(0, 1, 2)
uv_layer = mesh.create_element_uv(VertexElementType.UV)
uv_layer.data.append(Vector2(0.0, 0.0))
uv_layer.data.append(Vector2(1.0, 0.0))
uv_layer.data.append(Vector2(0.5, 1.0))