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How to use glOrtho() in OpenGL?
... will not recede into the distance.
I use glOrtho every time I need to do 2D graphics in OpenGL (such as health bars, menus etc)
using the following code every time the window is resized:
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0f, windowWidth, windowHeight, 0.0f, 0.0f, 1.0f);
T...
关于App Inventor 2过程积木，被问最多的6个问题 - App应用开发 - 清泛IT社...
...—你需要他返回查到的内容（有返回值）。<br><br><br><b>Q2: 过程一定要带参数吗？什么情况该加参数？</b><br><br><br><b>A:</b> 不一定。参数（形参，procedure argument）是可选的，取决于你的场景。<br><br><b>不需要参数的例子</b>：每次启...
How to assign colors to categorical variables in ggplot2 that have stable mapping?
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For simple situations like the exact example in the OP, I agree that Thierry's answer is the bes...
How slow are .NET exceptions?
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207
I'm on the "not slow" side - or more precisely "not slow enough to make it worth avoiding them...
Add Foreign Key to existing table
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edited Jul 18 '15 at 22:38
Steen Schütt
6371010 silver badges2727 bronze badges
answered Jan 9 '13...
How to print number with commas as thousands separators?
I am trying to print an integer in Python 2.6.1 with commas as thousands separators. For example, I want to show the number 1234567 as 1,234,567 . How would I go about doing this? I have seen many examples on Google, but I am looking for the simplest practical way.
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How can one print a size_t variable portably using the printf family?
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12 Answers
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git undo all uncommitted or unsaved changes
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edited Feb 13 at 19:25
answered Dec 28 '12 at 21:04
m...
TypeError: 'undefined' is not a function (evaluating '$(document)')
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Wordpress uses jQuery in noConflict mode by default. You need to reference it using jQuery as...
Performant Entity Serialization: BSON vs MessagePack (vs JSON)
...erialize objects smaller than BSON.
For example, a simple map {"a":1, "b":2} is serialized in 7 bytes with MessagePack, while BSON uses 19 bytes.
BSON supports in-place updating
With BSON, you can modify part of stored object without re-serializing the whole of the object. Let's suppose a map {"a"...