Post

Arc2D

Arc2D

Overview

Arc2D is a line-based geometry node that defines a linear circular arc with center (0,0) in X-Y plane, with angles measured starting at positive x-axis and sweeping towards positive y-axis.

The Arc2D node belongs to the Geometry2D component and requires at least level 2, its default container field is geometry. It is available from X3D version 3.0 or higher.

Hierarchy

1
2
3
+ X3DNode
  + X3DGeometryNode
    + Arc2D

Fields

SFNode [in, out] metadata NULL [X3DMetadataObject]

Information about this node can be contained in a MetadataBoolean, MetadataDouble, MetadataFloat, MetadataInteger, MetadataString or MetadataSet node.

Hint

SFFloat [ ] startAngle 0 [-2π,2π]

Arc extends from startAngle counterclockwise to endAngle, in radians.

Hints

Warning

  • Simple-geometry dimensions are initializeOnly and cannot be changed after initial creation, avoiding the need for potentially expensive tessellation at run time.

SFFloat [ ] endAngle π/2 [-2π,2π]

Arc extends from startAngle counterclockwise to endAngle, in radians.

Hints

Warning

  • Simple-geometry dimensions are initializeOnly and cannot be changed after initial creation, avoiding the need for potentially expensive tessellation at run time.

SFFloat [ ] radius 1 (0,∞)

Circle radius, of which the arc is a portion.

Hint

  • For size animation, modify the scale of a parent/ancestor Transform node instead.

Warning

  • Simple-geometry dimensions are initializeOnly and cannot be changed after initial creation, avoiding the need for potentially expensive tessellation at run time.

Advice

Hints

Warnings

Example

See Also

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