RectTransform的Bounds

白色方块为view：
红色方块为content：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class BoundsTest : MonoBehaviour
{public RectTransform m_view;public RectTransform m_content;public void ShowBounds(){Bounds bounds = new Bounds(m_view.rect.center, m_view.rect.size);Debug.LogError("view bounds" + bounds + "  " + bounds.min + "  " + bounds.max);Bounds bounds2 = new Bounds(m_content.rect.center, m_content.rect.size);Debug.LogError("content bounds" + bounds2 + "  " + bounds2.min + "  " + bounds2.max);Bounds bounds3 = GetBounds();Debug.LogError("bounds3 bounds" + bounds3 + "  " + bounds3.min + "  " + bounds3.max);}public void AdjustBounds(){Bounds m_ViewBounds = new Bounds(m_view.rect.center, m_view.rect.size);Bounds m_ContentBounds = GetBounds();Vector3 contentSize = m_ContentBounds.size;Vector3 contentPos = m_ContentBounds.center;var contentPivot = m_content.pivot;AdjustBounds(ref m_ViewBounds, ref contentPivot, ref contentSize, ref contentPos);}private readonly Vector3[] m_Corners = new Vector3[4];private Bounds GetBounds(){if (m_content == null)return new Bounds();m_content.GetWorldCorners(m_Corners);var viewWorldToLocalMatrix = m_view.worldToLocalMatrix;return InternalGetBounds(m_Corners, ref viewWorldToLocalMatrix);}internal static Bounds InternalGetBounds(Vector3[] corners, ref Matrix4x4 viewWorldToLocalMatrix){var vMin = new Vector3(float.MaxValue, float.MaxValue, float.MaxValue);var vMax = new Vector3(float.MinValue, float.MinValue, float.MinValue);for (int j = 0; j < 4; j++){Vector3 v = viewWorldToLocalMatrix.MultiplyPoint3x4(corners[j]);vMin = Vector3.Min(v, vMin);vMax = Vector3.Max(v, vMax);}var bounds = new Bounds(vMin, Vector3.zero);bounds.Encapsulate(vMax);return bounds;}internal static void AdjustBounds(ref Bounds viewBounds, ref Vector2 contentPivot, ref Vector3 contentSize, ref Vector3 contentPos){// Make sure content bounds are at least as large as view by adding padding if not.// One might think at first that if the content is smaller than the view, scrolling should be allowed.// However, that's not how scroll views normally work.// Scrolling is *only* possible when content is *larger* than view.// We use the pivot of the content rect to decide in which directions the content bounds should be expanded.// E.g. if pivot is at top, bounds are expanded downwards.// This also works nicely when CFContentSizeFitter is used on the content.Vector3 excess = viewBounds.size - contentSize;if (excess.x > 0){contentPos.x -= excess.x * (contentPivot.x - 0.5f);contentSize.x = viewBounds.size.x;}if (excess.y > 0){contentPos.y -= excess.y * (contentPivot.y - 0.5f);contentSize.y = viewBounds.size.y;}}
}

RectTransform的Bounds相关推荐

关于Unity中RectTransform和Transform
以前一直以为在Inspector面板上的是Transform,后来才发现原来2D是RectTransform,3D是Transform 3D面板上显示的是位置坐标组件Transform,2D面板上显示 ...
Unity进阶技巧 - RectTransform详解
一.Pivot属性详解首先为了让大家更好的理解内容,我在Unity中创建了两个UI控件,一个Plane控件,作为父对象,一个Image控件,作为子对象. 然后我们选中子对象,来看看它的RectTra ...
iOS bug 日志 -frame 和 bounds的区别
使用显式动画,如果设置layer 的bounds和frame效果是不一样的如果设置 self.layer.bounds = CGRectMake(0, 0, width, width); 效果如图 ...
(0046) iOS开发之View的frame和bounds之解惑
iOS view的frame和bounds之解惑 frame: 该view在父view坐标系统中的位置和大小.(参照点是,父亲的坐标系统) bounds:该view在本地坐标系统中的位置和大小.(参照 ...
动态获取UILabel的bounds
动态获取UILabel的bounds 在使用UILabel存放字符串时,经常需要获取label的长宽数据,本文列出了部分常用的计算方法. 1.获取宽度,获取字符串不折行单行显示时所需要的长度 CGS ...
linux 内核模块编译错误 include/linux/mmzone.h:18:26: fatal error: linux/bounds.h: No such file or director
解决方案:内核编译后不要执行make clean 出现的问题:编译的时候提示缺少头文件 mmzone.h ....bounds.h...等 include/linux/mmzone.h:18:26: ...
index 4 is out of bounds for dimension 1 with size 4
index 4 is out of bounds for dimension 1 with size 4 原因:数组越界了
ios开发之UIView的frame、bounds跟center属性的区别(附图)
博文暂时想到什么写什么,不顺理成章,不顺章成篇. 先看几个概念坐标点Poit:向右侧为X轴正方向的值x,原点下侧为Y轴正方向的值y 大小Size:由宽度width和高度height构成,表示一个矩形 ...
技术分享-bounds的深入认识
MAKE BY - LJW -------转载请注明出处------- 前言:初学者对bounds的认识是以自己的左上角为坐标原点,而且x/y一般是0,0 但是对bounds深入认识之后,我们应该对它 ...
iOS开发UI篇—手写控件，frame，center和bounds属性
一.手写控件 1.手写控件的步骤 (1)使用相应的控件类创建控件对象 (2)设置该控件的各种属性 (3)添加控件到视图中 (4)如果是button等控件,还需考虑控件的单击事件等 (5)注意:View ...

RectTransform的Bounds

RectTransform的Bounds相关推荐

最新文章

热门文章