LanguageEnglish
  • C#
This version of Unity is unsupported.

Handles.DrawSolidArc

Leave feedback

Declaration

public static void DrawSolidArc(Vector3 center, Vector3 normal, Vector3 from, float angle, float radius);

Parameters

center The center of the circle.
normal The normal of the circle.
from The direction of the point on the circumference, relative to the center, where the sector begins.
angle The angle of the sector, in degrees.
radius The radius of the circle

Note: Use HandleUtility.GetHandleSize where you might want to have constant screen-sized handles.

Description

Draw a circular sector (pie piece) in 3D space.


Solid Arc in the Scene View.

using UnityEditor;
using UnityEngine;

static class ArcExample
{
    static Vector3 m_Angle = new Vector3(1.5f, .66f, 0f);

    // Create an arc at 0, 0, 0 in the Scene view and a slider that changes thes angle of the arc.
    [InitializeOnLoadMethod]
    static void Init() => SceneView.duringSceneGui += view =>
    {
        Handles.DrawLine(new Vector3(1.5f, 0f, 0f), new Vector3(1.5f, 1f, 0f));
        var handleSize = HandleUtility.GetHandleSize(m_Angle) * .1f;
        m_Angle = Handles.Slider(m_Angle, Vector3.up, handleSize, Handles.DotHandleCap, EditorSnapSettings.move.x);
        m_Angle.y = Mathf.Clamp(m_Angle.y, 0f, 1f);
        Handles.Label(m_Angle + Vector3.right * handleSize * 2f, $"Angle {m_Angle.y * 360f}");

        Handles.DrawSolidArc(Vector3.zero, Vector3.forward, Vector3.up, m_Angle.y * -360f, 1f);
    };
}

Is something described here not working as you expect it to? It might be a Known Issue. Please check with the Issue Tracker at issuetracker.unity3d.com.

Copyright ©2024 Unity Technologies. Publication Date: 2024-04-25.
Tutorials Community Answers Knowledge Base Forums Asset Store Terms of use Legal Privacy Policy Cookies Do Not Sell or Share My Personal Information