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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: The matplotlib tutorial provides a nice example of how to draw a spherical suface: from mpl_toolkits.mplot3d import Axes3D import matplotlib.pyplot as plt import numpy as np fig = plt.figure() ax = fig.add_subplot(111, projection='3d') u = np.linspace(0, 2 * np.pi, 100) v = np.linspace(0, np.pi, 100) x = 10 * np.outer(np.cos(u), np.sin(v)) y = 10 * np.outer(np.sin(u), np.sin(v)) z = 10 * np.outer(np.ones(np.size(u)), np.cos(v)) ax.plot_surface(x, y, z, rstride=4, cstride=4, color='b') plt.show() From what I understand, this creates a 2D grid

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 afraid I don't really know what to provide here. I'm a bit lost. Google sends me in entirely irrelevant directions. I've just upgraded to Python 3.5 and am now trying to get my current project working with it. Unfortunately, part of it is done in Cython, and I've had to spend the last three days trying to get Python to talk to MinGW. Now I've done that via this patch , but the compilation still fails. This file compiled flawlessly previously, so presumably it's something about the way Cython is set up. Here's the full text of the command

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 would know if is possible to use two surface in same layout and view each at same time. In future I would a grid-view of video-view, but each video-view using vlc. I modify this sample ( android-vlc-sample ) using fragment. The result is that I see only one video...How can I solve ? From log-cat I not see important error, but I think that there are rendering problems for android UIThread Java Coding public class MultipleVideoPlayFragmentActivity extends FragmentActivity { public final static String LOCATION = "com.compdigitec

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: We are investigating alterntive control libraries for a new project we are working on. One of the requirements is to display data in the form of a surface map, as per the ComponentOne Chart below. We've used the C1 control in the past but are not entirely happy with it - so wondered if anyone can recommoned some alternatives. Having some trouble finding any, so all help appreciated. NB: This is a .NET 3.5 WinForms application 回答1: Here are some commercial providers that have the type of chart you're looking for: ChartFX for .NET - Gallery of

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 the same code with a lower version (9.4.0) working on the phone but for some reason it won't work on RPi3? My build.gradle compile 'com.google.android.gms:play-services:10.0.0' provided 'com.google.android.things:androidthings:0.4-devpreview' The manifest permissions <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.INTERNET" /> The method private void getWeather() { // Check for permission first if (ContextCompat.checkSelfPermission(this, Manifest.permission

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: Can anyone tell me why my app quits with: pygame error: display Surface quit. 回答1: I had similar problem and discovered that Surface objects don't like to be deepcopied. When I used copy.deepcopy() on such object and then accessed the copy, I got that strange error message (without calling pygame.quit()). Maybe you experience similar behavior? 回答2: From http://archives.seul.org/pygame/users/Nov-2006/msg00236.html : On Thu, 2006-11-30 at 21:27 -0300, Nicolas Bischof wrote: pygame.error: display Surface quit what does that mean?, i can't fix

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 built an Android app that is working fine and as expected with a tablet: Acer. 7-inch API 21. I recently got a new tablet: Acer. 10-inch API 22. Now I am getting my logs spammed with this line. 04-12 18:23:27.371 8776-9082/com.callbell.callbell D/Surface: Surface::setBuffersDimensions(this=0x7f9aa44000,w=800,h=1280) and the screen will freeze and go blank at random intervals. I have not seen any errors in the log and the only reference I can find to this log line is here https://android.googlesource.com/platform/frameworks/native/+

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: So I've been playing around with SDL2 to see if it would suit my needs. I was following introductory examples (from lazyfoo mostly) and made a simple test. #include <stdio.h> #include <SDL.h> const int SCREEN_WIDTH = 640; const int SCREEN_HEIGHT = 480; int main(int argc, char const *argv[]) { /* The window handle */ SDL_Window* window = NULL; /* The surface contained in the window */ SDL_Surface* screen_surface = NULL; /* Init SDL */ if(SDL_Init(SDL_INIT_VIDEO) < 0) { printf("SDL could not initialize! SDL Error: %s\n", SDL_GetError());

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 working on a project and facing an issue with ARCore. I used ARCore Location in my project, I set the location of object using latitude and longitude. but when I see it in the device, object location varies in AR. CompletableFuture<ViewRenderable> exampleLayout = ViewRenderable.builder() .setView(this, R.layout.example_layout) .build(); // When you build a Renderable, Sceneform loads its resources in the background while returning // a CompletableFuture. Call thenAccept(), handle(), or check isDone() before calling get().

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 a closed surface mesh generated using Meshlab from point clouds. I need to get a volume mesh for that so that it is not a hollow object. I can't figure it out. I need to get an *.stl file for printing. Can anyone help me to get a volume mesh? (I would prefer an easy solution rather than a complex algorithm). 回答1: Given an oriented watertight surface mesh, an oracle function can be derived that determines whether a query line segment intersects the surface (and where): shoot a ray from one end-point and use the even-odd rule (after