gravity | 易学教程

unity 3.3, create local gravity on object

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Using Unity 3.3. visual studio express 2010. and c#. I need to make a script that will be attached to an object. This object will create its own gravity field that will attract- repel all objects in the environment. Unfortunately I'm not sure how to do this due to unitys physics. would I need the object to overide all other objects? do I overide unitys main physics ? hows this work? Or am I overcomplicating things when its a simple script? No I do not want to add a rigig body so the object falls with gravity, it must CREATE gravity that is a lot more powerfull. Cheers UPDATE! public float

android background repeat-y

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I have an image that I want to position in the right and repeat it on y axis. Something like "background: url(img.png) right repeat-y" in HTML. Is it possible to do this in android? When I set this bitmap as a background it's not in the right: <bitmap xmlns:android="http://schemas.android.com/apk/res/android" android:src="@drawable/img_list" android:filter="true" android:dither="true" android:tileMode="repeat" android:gravity="right" /> I use the following code for repeating a image on y axis as background: <bitmap xmlns:android="http://schemas.android.com/apk/res/android" android:src="

Gravity Forms jQuery No Weekends

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问题 I have used the gform_post_render function in Gravity Forms to create a custom datepicker using the minDate option for selection of 1 day in advance: http://www.gravityhelp.com/documentation/page/Gform_post_render Is there a way that I can exclude weekends? I only want the user to be able to select weekdays with one day ahead. I have tried using the beforeShowDay: $.datepicker.noWeekends but that seems to conflict with minDate Here is my form: http://www.discountdumpsters.com/shop/30-yard

Set gravity programmatically for item in RecycerView Android

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问题 I am using RecyclerView Android to make a chat line with left/right message box. I want to set gravity to item of RecyclerView. In normally way, I cast itemView to LinearLayout and then set ParamLayout gravity for it. But if RecyclerView, it seems not right to cast to LinearLayout. It will return RecyclerView.LayoutParams. Because of: LayoutParams subclass for children of RecyclerView. Custom layout managers are encouraged to create their own subclass of this LayoutParams class to store any

Cocos2D Gravity?

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问题 I am really looking to try to have gravity in my game. I know everyone says use Box2D, but in my case I can't. I need to use Cocos2D for the gravity. I know Cocos2D does not have any gravity API built in so I need to do something manually. The thing is there is like no tutorials or examples anywhere on the web that show this. Can anyone show me what they have done or can some explain step by step on how to apply a non-constant gravity (One that gets slightly stronger while falling). I think

get the acceleration without gravity

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问题 I'm new to android development. I want to get actual acceleration of the phone.I found a code to get acceleration.but it gives acceleration with gravity. Please any one help me to find a way to get actual acceleration without gravity. Here's the code i found,,Please help me with this code. thank you package com.SensorTest; import android.app.Activity; import android.hardware.Sensor; import android.hardware.SensorEvent; import android.hardware.SensorEventListener; import android.hardware

android 关于View的一些整理

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1、Button text的值为英文时，会自动转换成大写。如需取消，设置android:textAllCaps="false" 2、控件的可见性可以在layout的配置文件中，配置android:visibility属性调用setVisibility()方法设置属性 visible:默认值，view可见 invisible:view不可见，但仍占屏幕空间 gone:view不可见，不占用屏幕空间 3、控件的对齐方式 android:gravity 用于指定文字在控件中的对齐方式 android:layout_gravity 用于控件在布局中的对齐方式 4、关于.9 图片的四个边框上有绘制一个个的小黑点。左边框和上边框表示当图片被拉伸的时候就拉伸黑色标记的区域。右边框和下边框绘制的部分表示内容会被放置的区域来源： oschina 链接： https://my.oschina.net/u/2253892/blog/2059243

Cesium中级教程8

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Cesium中文网： http://cesiumcn.org/ | 国内快速访问： http://cesium.coinidea.com/ What is a particle system? 什么是粒子系统？粒子系统是一种图形技术，可以模拟复杂的物理效果。粒子系统是小图像的集合，当它们一起观看时，会形成一个更复杂的“模糊”物体，如火、烟、天气或烟花 fireworkds 。通过使用诸如初始位置、速度和寿命等属性指定单个粒子的行为，可以控制这些复杂的效果。粒子系统效应在电影和电子游戏中很常见。例如，为了表示飞机的损坏，技术艺术家可以使用粒子系统来表示飞机引擎上的爆炸，然后渲染不同的粒子系统，表示飞机坠毁时的烟雾轨迹。 Particle system basics 粒子系统基础请看下面基础粒子系统的代码： var particleSystem = viewer.scene.primitives.add(new Cesium.ParticleSystem({ image : '../../SampleData/smoke.png', imageSize : new Cesium.Cartesian2(20, 20), startScale : 1.0, endScale : 4.0, particleLife : 1.0, speed : 5.0, emitter : new

android:gravity fails on API 18+

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问题 I have some TextViews on my app, I don't know why but the android:gravity attribute is not centering the text content where it should be on devices running the API 18+ (4.3+). There is the code I use on my custom TextView , this is a child of RelativeLayout: <com.package.custom.CustomTextFont android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignBottom="@+id/seekbar" android:layout_alignParentLeft="true" android:layout_alignTop="@+id/seekbar" android

Center text android button

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问题 My question is very simple. How do I center the text on a button in android? I tried to set padding to 0, gravity to center but the result when i run it still that the text is horizontal centred but not vertical. The text is a bit shifted to the bottom. <Button android:id="@+id/btnSame" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:layout_marginBottom="10dip" android:layout_marginLeft="10dip" android:layout_marginRight="10dip"