平面计算机

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have created a view which extends surface view when i am trying to add the custom view to frame layout , frame layout back ground is not visible.. please provide me a solution. 回答1: You have to render the background by yourself within the surface view. As the documentation says: the SurfaceView punches a hole in its window to allow its surface to be displayed. So nothing that is placed behind a surface view would be rendered. 文章来源: Background not visible in surface view

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I was trying so long for Camera2 api integration to my app.Its working fine for capturing image at first.But when i snap second time the preview was not coming.I tested it in genymotion nexus 5 emulator.Tried with all examples.Preview was not coming for snapping at second time.Getting this error also. java.lang.IllegalArgumentException: Surface had no valid native Surface... and i followed this 2 codes http://inducesmile.com/android/android-camera2-api-example-tutorial/?cid=519 Github-Camera2Master.Please help anyone to resolve this error

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm plotting a surface using matplotlib 1.1.0. The plot Z axis is masked like so: Zm = ma.masked_where((abs(z_grid) 0.91), (z_surface)) surf = ax.plot_surface(X, Y,Zm, rstride=2, cstride=2, cmap=colors,linewidth=0, antialiased=False) But I'm not seeing the mask applied on the plot. I plotted the mask itself as a subplot surf = ax.plot_surface(X, Y,ma.getmask(Zm), rstride=2, cstride=2, cmap=colors,linewidth=0, antialiased=False) Which worked, so I know my mask does actually contain True values. Full code: from pylab import * import matplotlib

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am using Camera2API in Android 6.0. I was done without error in Android 5.0. However, when I used my code in the Android 6.0, I have a issue. The issue is that sometime I can open the camera successfully and take picture. However, sometime the camera cannot open and it has error java.lang.SecurityException: Lacking privileges to access camera service at android.hardware.camera2.utils.CameraBinderDecorator.throwOnError(CameraBinderDecorator.java:108) I added the runtime permission as follows: String[] PERMISSIONS = {Manifest.permission.READ

SurfaceFlinger合成后就进行图像的输出的工作。在图像输出时，存在硬件合成器与不存在的情况有些差别。软件合成时用到图像缓冲区生产者与消费者模型。首先来看看图像缓冲区的初始化。 void SurfaceFlinger::init() { ALOGI( "SurfaceFlinger‘s main thread ready to run. " "Initializing graphics H/W..."); ...... // initialize our non-virtual displays for (size_t i=0 ; i<DisplayDevice::NUM_BUILTIN_DISPLAY_TYPES ; i++) { DisplayDevice::DisplayType type((DisplayDevice::DisplayType)i); // set-up the displays that are already connected if (mHwc->isConnected(i) || type==DisplayDevice::DISPLAY_PRIMARY) { // All non-virtual displays are currently considered secure. bool isSecure = true;

A cylindrical scanning setup with an optical distance probe is non-contact, universal and fast. With a probe with 5 mm range, circular tracks on freeform surfaces can be measured rapidly with minimized system dynamics. By applying a metrology frame relative to which the position of the probe and the product are measured, most stage errors are eliminated from the metrology loop. Because the probe is oriented perpendicular to the aspherical best-fit of the surface, the sensitivity to tangential errors is reduced. This allows for the metrology system to be 2D. The machine design consists of the

Ox00 Surface Shader Syntax 常用的三种输出数据格式： //Standard output structure of surface shaders is this: struct SurfaceOutput { fixed3 Albedo; // diffuse color fixed3 Normal; // tangent space normal, if written fixed3 Emission; half Specular; // specular power in 0..1 range fixed Gloss; // specular intensity fixed Alpha; // alpha for transparencies }; struct SurfaceOutputStandard { fixed3 Albedo; // base (diffuse or specular) color fixed3 Normal; // tangent space normal, if written half3 Emission; half Metallic; // 0=non-metal, 1=metal half Smoothness; // 0=rough, 1=smooth half Occlusion; // occlusion

先定义一个State 基类, 按照上面说的状态需要的三个操作分别定义函数(startup, update, cleanup)。在 init 函数中定义了上面说的三个变量（next，persist，done），还有start_time 和 current_time 用于记录时间。 class State(): def __init__(self): self.start_time = 0.0 self.current_time = 0.0 self.done = False self.next = None self.persist = {} @abstractmethod def startup(self, current_time, persist): '''abstract method''' def cleanup(self): self.done = False return self.persist @abstractmethod def update(sefl, surface, keys, current_time): '''abstract method''' 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 看一个状态类LoadScreen的具体实现，这个状态的显示效果如图3。 startup

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/michro/article/details/82916135 Failure: 0xc0000225 No excuse and explanations. Just failed again and again for the recovery via the official image "SurfacePro4_BMR_43_11.347.0.zip", with the failure above. Attempts: 1. bing the m$ solutions, with various of redirections into other messy pages, but not functioning. 2. ghost image u-key installation, but cannot boot via the failure above. 3. uefi setting configurations, different boot combinations with only u-key/ lock / internal storage (removed the backup sd card as well). With 3. the official

1. RADAR：RAdio Detection And Ranging无线电探测和测距 雷达系统是一种测距装置，它根据定向脉冲束在特定距离上的往返行程时间来测量距离 上式中的2均是因为发射+返回算一次 2. 雷达分为探测雷达，气象雷达系统等，我们主要关注映射雷达与成像雷达 雷达不依附于太阳，不受阴天影响 地球物质的微波反射或发射与光谱中可见或热部分的对应物没有直接关系——雷达是不是自然产物 3. Basic Configuration of SLR 4. 5. near polar orbit近极轨道=98% 6. both hand looking的好处：提高spatic resolution 7. 8. SAR方位分辨率： 近距离地面上的点跟远距离（有效天线长度随距离增加）的点相比，被更少的天线观察 基本上方位分辨率不变，与距离无关 9. ra = L / 2 ; where (L is antenna length) 'r' means 'resolution' and 'a' stands for 'azimuth' Hence, 'ra' here stands for resolution in the azimuth direction 10. 11. 来源： https://www.cnblogs.com/eleni/p/11765325.html