# LineGizmo

使用LineGizmo，在游戏场景中绘制一条条纯色的线段，我们可以拼接出想要的立方体线框

# 方法

函数	功能
start	线段起始点的访问器
end	线段终点的访问器
WorldMatrix	线段世界矩阵的访问器
setTintColor	设定线段的颜色
resetGizmo	重置线段的属性
addRenderCamera	明确指定某个相机需要绘制该Gizmo
deleRenderCamera	明确某个相机不需要绘制该Gizmo
clearRenderCameraSet	标记所有相机均不绘制该Gizmo

# 示例

import engine from "engine";
export default class ExampleClass extends engine.Script{
    
    public lineGizmo;

    public onAwake(){
        var start = engine.Vector3.ZERO;
        var end = engine.Vector3.createFromNumber(1, 1, 1);

        // 创建一个起点为(0, 0, 0)，终点为(1, 1, 1)的线段Gizmo
        this.lineGizmo = engine.Gizmos.createLineGizmo(start, end);
        
        // 调整为红色
        this.lineGizmo.setTintColor(1.0, 0, 0);

        // 将线段缩放之后平移
        var translate: Vector3 =  Vector3.createFromNumber(1, 0, 0);
        var scale: Vector3 = Vector3.createFromNumber(2, 2, 2);
        var tempWorldMatrix = Matrix4.composeTRS(translate, Matrix4.IDENTITY, scale);
        this.lineGizmo.WorldMatrix = tempWorldMatrix;
    }

    public onDisable(){
        engine.Gizmos.removeGizmo(this.lineGizmo);
    }

}