path

问题 I need to draw a path along the shape of an image in a way that it is always matching its position on the image independent of the image scale. Think of this like the hybrid view of Google Maps where streets names and roads are superimposed on top of the aerial pictures. Furthermore, this path will be drawn by the user's finger movements and I need to be able to retrieve the path keypoints on the image pixel coordinates. The user zooms-in in order to more precisely set the paths location. I

问题 how it`s possible to include a file (include();) from the root folder to a files from different subfolders ? 回答1: Use relative path from your script with ../ or use absolute path with the help of $_SERVER['DOCUMENT_ROOT ] as Col. Shrapnel suggested. 来源： https://stackoverflow.com/questions/4423098/how-its-possible-to-include-a-file-include-from-the-root-folder-to-a-files

问题 According to http://guides.rubyonrails.org/layouts_and_rendering.html I should be able to define the path from a different controller as I have done in my create action in my micropostscontroller: def create @micropost = current_user.microposts.build(params[:micropost]) if @micropost.save flash[:success] = "Micropost created!" redirect_to profile_path else render 'static_pages/profile' end end When I unsuccessfully create a post, however (leave it blank or make it too long), the page '

问题 // Dividend Limit check or increase the Dividend if (dival == 10) { writer.println("Divident has reached it Limit !"); i++; // update the file name String upath = "channel_" + i; System.out.println(path); // find channel_1 and replace with the updated path if (path.contains("channel_1")) { path = "D:/File Compression/Data/low_freq/low_freq/house_1/" + upath + ".dat"; } else { JOptionPane.showMessageDialog(null, "Invalid File Choosen"); System.exit(0); } dival = 10; } else { dival = dival + 10

问题 Running Windows 7. 2.7, 3.3 and 3.4 installed. I just installed Python 3.3 for a recent project. In the command prompt, python launches 3.4, and py launches 3.3. I can access 3.3 using the 3.3 version of IDLE, but how can I access it via the command prompt? Is there a shortcut like py that I can use? Do I need to define this on my own like an alias? Or is the best route to somehow change the path to temporarily make 3.3 the default? Just downloaded virtualenv, maybe that might be part of the

问题 I’m installing scrypt (https://www.npmjs.com/package/scrypt) from npm. The installation involves a node-gyp build step that builds a native node.js extension. When I then start my app, it fails with the following error: node index.js module.js:568 return process.dlopen(module, path._makeLong(filename)); ^ Error: /package/host/localhost/gcc-4/lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /home/xxxx/xxxx/node_modules/scrypt/build/Release/scrypt.node) at Error (native) at

问题 I looked for this question over the site but it looks like it's never been asked, so I thought I would share the answer to anyone looking for it. Q: When I input executables files' name in cmd.exe, through shell-execution functions or from a Batch file, how does Windows locate the external executable file to be called? 回答1: I do not understand what "shell-execution function" is referring to, so I will ignore it. But the rules for launching an executable from the CMD.EXE command line, or from

问题 This is a follow-up question to this one (just as a brief description: I have been able to run a Java program by double-clicking on the .jar file on OS X and Windows, but not on Linux, as with the latter I get a file path problem). Through trying out a few things using NetBeans under Ubuntu (12.04) I found that the problem seems to be located in what the program considers to be its working directory (which I concluded from the output of File.getAbsolutePath() ). If I start my application in

问题 My Docker wrapper script works as intended when the current working directory does not contain spaces, however there is a bug when it does. I have simplified an example to make use of the smallest official Docker image I could find and a well known GNU core utility. Of course this example is not very useful. In my real world use case, a much more complicated environment is packaged. Docker Wrapper Script: #!/usr/bin/env bash ## ## Dockerized ls ## set -eux # Only allocate tty if one is

问题 My Docker wrapper script works as intended when the current working directory does not contain spaces, however there is a bug when it does. I have simplified an example to make use of the smallest official Docker image I could find and a well known GNU core utility. Of course this example is not very useful. In my real world use case, a much more complicated environment is packaged. Docker Wrapper Script: #!/usr/bin/env bash ## ## Dockerized ls ## set -eux # Only allocate tty if one is