DistanceToCone(Vector3, Quaternion, float)
Returns the distance in pixels from the mouse pointer to a cone.
Read time 1 minuteLast updated 4 days ago
Definition
- Type: Method
- Namespace: UnityEditor
- Assembly: UnityEditor
public static float DistanceToCone(Vector3 position, Quaternion rotation, float size)
Parameters
Position of the cone.
Rotation of the cone.
Size of the cone.
Returns
Type | Description |
|---|---|
| float | Distance from mouse to cone in pixels. |
Remarks
Calculates the screen space distance from the mouse pointer to a cone at given world space position with the given rotation and size.
Returns zero when mouse pointer is directly over the cone.
Uses the current camera to determine the distance.
using UnityEngine;using UnityEditor;public class ExampleScript : MonoBehaviour{}// Displays cone in scene view, and distance from mouse// to the cone.[CustomEditor(typeof(ExampleScript))]public class ExampleEditor : Editor{ public void OnSceneGUI() { var t = target as ExampleScript; var tr = t.transform; var position = tr.position; var rotation = tr.rotation; var size = 1.0f; // draw a cone in scene Handles.color = Color.yellow; Handles.ConeHandleCap(0, position, rotation, size, Event.current.type); // calculate distance from mouse to cone, and display it var distance = HandleUtility.DistanceToCone(position, rotation, size); GUI.color = Color.black; Handles.Label(position, distance.ToString("F0")); // make scene view repaint on mouse move if (Event.current.type == EventType.MouseMove) Event.current.Use(); }}
Additional Resources: HandleUtility.DistanceToCircle, HandleUtility.DistanceToCube, HandleUtility.DistanceToLine.