Unity skframework framework (XIX), POI points of interest / information points

Catalog

One 、 brief introduction

Two 、 Instructions

1. 2D and 3D matching

2. remove  

3.UI The resolution of the  

4.Camera The camera  

3、 ... and 、Example Example  

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One 、 brief introduction

POI It can be understood as some meaningful points in the scene , For example, the station 、 The mall 、 The hospital 、 Monitoring, etc. , This function is usually used for digital twin projects , The main purpose is to compare the two-dimensional icon representing these points with the three-dimensional target position “ binding ”, The essence is to turn world coordinates into screen coordinates . As shown in the following example , We bind the icon of a monitoring point to the location of the model ：

The tool has been uploaded to my framework SKFramework Development toolbox in , As shown in the figure .

The framework is already in Github Open source , Address ：GitHub - 136512892/SKFramework: Unity SKFramework Development framework

Two 、 Instructions

1. 2D and 3D matching

adopt Match Function will POI The icon matches the 3D target , among flag The parameter represents the matching identifier , The system will put the same identifier RectTransform And GameObject Match .

/// <summary>
///  Match according to the identifier 
/// </summary>
/// <param name="flag"> identifier </param>
/// <param name="rectTransform">RectTransform Components </param>
public void Match(string flag, RectTransform rectTransform);
/// <summary>
///  Match according to the identifier 
/// </summary>
/// <param name="flag"> identifier </param>
/// <param name="target"> Three dimensional objects </param>
public void Match(string flag, GameObject target);

2. remove  

adopt Delete Function to remove a POI spot , After removal, the calculation of world coordinates to screen coordinates will no longer be carried out .

/// <summary>
///  Remove according to the identifier 
/// </summary>
/// <param name="flag"> identifier </param>
/// <returns> Remove successfully returned true  Otherwise return to false</returns>
public bool Delete(string flag);

3.UI The resolution of the  

The code defaults to UI The resolution used is 1920*1080, It needs to be changed according to the actual situation

4.Camera The camera  

The conversion between world coordinates and screen coordinates is through Camera Class WorldToScreenPoint Functionally implemented , Therefore, the system needs a Camera The main camera , When the system initializes, it will first get the Tag The label is MainCamera The camera , If it doesn't exist, then pass FindObjectOfType Function to find the camera .

3、 ... and 、Example Example  

using UnityEngine;
using SK.Framework;

public class Example : MonoBehaviour
{
    [SerializeField] private RectTransform rt;
    [SerializeField] private GameObject target;

    private void Start()
    {
        POI.Match(" monitor 1", rt);            
        POI.Match(" monitor 1", target);
    }
}

After operation, as shown in the figure ：