Vector2

Vector2 — Aspose.3D FOSS for Python API Reference

Overview

Vector2 is a double-precision 2-component vector with x and y components. It is primarily used to store UV texture coordinates in VertexElementUV layers and as the tangent type for KeyFrame.next_in_tangent and KeyFrame.out_tangent in animation curves.

Package: aspose.threed.utilities

from aspose.threed.utilities import Vector2

Constructor

Signature	Description
`Vector2()`	Constructs `(0.0, 0.0)`
`Vector2(x, y)`	Constructs from two `float` values

Properties

Name	Type	Description
`x`	`float`	X component (U in texture coordinates)
`y`	`float`	Y component (V in texture coordinates)
`length`	`float`	Euclidean length (`sqrt(x²+y²)`), read-only
`length2`	`float`	Squared length (`x²+y²`), read-only

Methods

Method	Return Type	Description
`set(x, y)`	`None`	Sets both components in place
`Vector2.parse(s)`	`Vector2`	Static. Parses `"x y"` string representation

Index Access

Components can be accessed by integer index: v[0] → x, v[1] → y.

Example

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))