When would we choose Public identifier over System identifier to locate DTD file?

FPIs can be used to identify DTD files. Since as far as I can tell, FPIs are somewhat similar to URNs in that they uniquely identify the resource ( DTD file ), then why don’t we use URNs...

How to explain the "deadlock" better?

I am struggling to explain "deadlock" in threads in easy words, so please help. What could be the best example of "deadlock" (say, in Java), and how it does happen in steps and how to prevent it?...

OpenGL Camera Rotation Not Working

I know this is a common question (as I have read many threads on here and other forums about it) but for the life of me I can not get the camera rotation that I desire. I want the camera to be...

What are SP (stack) and LR in ARM?

I am reading definitions over and over again and I still not getting what are SP and LR in ARM? I understand PC (it shows next instruction's address), SP and LR probably are similar, but I just...

How to get the GLTools library from SuperBible to work in Ubuntu? or an alternative?

I recently bought the SuperBible 5th edition book. I use Ubuntu 12.04 LTS. I use Code::Blocks. I'm not very proficient with C++ libraries and setting up. I wanted a book that will guide me from...

Show/hide UIToolbar, "match finger movement", precisely as in for example iOS7 Safari

Note: check out Thuy's great subclass of UINavBar here: https://stackoverflow.com/a/20720359/294884 If you're working on this problem, GTScrollNavigationBar is close to a ready-made solution to...

Java game error, input == null?

I am making a Java 2D game and I am a newbie to programming language and game devolpment, so any help would be superb for me. Right, to start off I have an error in my java script, here it...

AWS Lambda http, where do I find the URL?

I am fairly new to AWS Lambda but sure can see the benefits of it and stumbled upon the superb framework Serverless to help me built solutions on Lambda. I started out building solutions using AWS...

Geometry Shader example code not working from Opengl Superbible

I am reading the OpenGL Superbible 7th edition. It is a great book and all, but when I get to the Geometry Shader part of the book, the program stops working. Some things that happen: Whenever I...

Swagger js codegen on how to generate models

I am using swagger js codegen to generate source code in nodejs .it works superb. However i have question , If we use swagger codegen and use java lang , models and handlers gets generated as part...

Jackson deserialization of lombok enhanced class: Why it does work and why it doesn't work?

Background: I found "dysfunctional" code in spring-admin project: "Cannot construct instance of Registration (no Creators, like default construct, exist)". So I wrote custom deserializer and...

Symfony - redirect 404 to a custom template only from one URL

I have video rooms (via Twig) being created on my page when the users want to start a video chat between each other. When they leave the room, the room is being deleted after a period of time and...

How do I prevent TextBox or RichEditBox from losing focus after clicking on a disabled button?

The title says it all: "How do I prevent TextBox or RichEditBox from losing focus after clicking on a disabled button?" I tried setting AllowFocusOnInteraction to false, but that only works when...

How can I identify what is blocking port 1433?

I like to consider myself a fairly smart individual with the superb ability to "Google" things. However, I am running into an issue that is driving me insane. I am trying to connect to a Microsoft...

Visual Studio Code Git decorations disappear

I'm new to VSCode, and am really liking it. The Git integration on the Mac is really superb. However, when I switched that project over to Linux, the Git decorators (indicating changed files)...

Idea (via Gradle) "Could not resolve:" dependencies from Sonatype Nexus Proxy of mavenCentral()

I have a hosted Sonatype Nexus repository on a local network. It has a Maven group containing a proxy repository for the public Maven repository. In the past this configuration was superb and I...

openGL superbible source code compilation error

I've just started to learn openGL programming with the openGL Superbible. Unfortunately I'm not able compile any example. I'm on Ubuntu 18.10 and I prepared the development environment with these...

Unable to get Tessallation shader working

I've just started following OpenGL SuperBible 7th ed, and translating the examples into LWJGL, but have become stuck on the tessellation shader. In the following program there is the line " //IF...

html5 <audio> set border color with javascript when playing

digital store with mp3 files: html5 'audio' tag is used, with 'controls'; works superb since there are many audios, user should be visually reminded which one is playing - i want border around...

emcee samples initial position

I'm trying to fit a inverse gamma distribution to a histogram. I can easily pick out a set of good fit parameters by playing around with its two parameters (c.f. orange line in Fig1). However,...

how to read, parse the SBM file format from Superbible Opengl

Calling on experts, gurus, and anybody to help read and parse a file in python. On page 751 of 6th ed. or page 800 of 7th ed. of Superbible OpenGL there is Appendix B. The SBM File Format that...

Opengl in python and glut rendering incorrect results, any suggestions why?

Referring to the reading of OpenGL Superbible's SMB format file where the source code is, I created a program with some help. Now I am comparing the results to what I'm actually getting. What I'm...

glBufferSubData , Haven't implemented type-inference for lists yet - instanced rendering

Porting over a chapter 7 example of instanced rendering from Superbible OpenGL 7th ed. and run into a problem with the function glBufferSubData Whatever I do to it, it won't accept the data. Make...

asteroids program using indirect draws, glMultiDrawArraysIndirect not rendering and drawing blank

I'm porting a program to learn about indirect draws from Superbible OpenGL 7th ed. This program is supposed to render almost 1 billion vertices per second and does not get a bottleneck from the...

glm.sizeof( glm.mat4 ) and the glMapBufferRange function error on a multiviewport rendering

Figure 8.27 of Superbible OpenGL 7th ed. has been ported to python although I am experiencing an error with the glMapBufferRange once more. This time to allocate a glm.mat4 I have tried to...

How to do 3 conditions with if else C#

I am able to get C# to read 2 of my conditions. I can correctly get the answers: "You blowed 10 whistles" and "Average job blue, your score is 18" But I cannot get the answer "Superb job red! Your...

Create bounding box from ONNX model output

Hello everyone i am using an ONNX object detection model for detecting items in a picture. I implemented the code by following steps on ONNX js Github repository...

Getting `undefined reference to 'glfwOpenWindowHint' ` error when trying to run OpenGL SuperBible example code on Linux

I'm trying to sun OpenGL SuperBible 6th edition example code for the first time on my Manjaro (arch) system. I followed the HOWTOBUILD.txt, installed mesa and glfw (glfw-wayland, not sure if there...

tensorflow facemesh delay in tracking landmark points

I am using face-mesh for one of ma POC the landmarks and detection are absolutely superb. But what i found is while moving the face the tracking is little delayed ? is there any configuration...

How To Prevent Darkmode.js from making background-image negative

I found darkmode.js (darkmodejs.learn.uno) a really easy way to implement dark mode in my website and it works superb with me expect a small problem. Which is, it changing the color of my...