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Circle line-segment collision detection algorithm?
...is just a linear function (y=kx+m), quite basic math, so I suddenly feel a bit rusty. Isnt k also unknown? Or do you mean we can assume m=0 and solve k? Wouldnt then m (that is, c) always be zero for our solved k?
– Mizipzor
Jul 3 '09 at 13:26
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How to test code dependent on environment variables using JUnit?
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I think the cleanest way to do this is with Mockito.spy(). It's a bit more lightweight than creating a separate class to mock and pass around.
Move your environment variable fetching to another method:
@VisibleForTesting
String getEnvironmentVariable(String envVar) {
return System.get...
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
... 编译和执行一下
$ gcc -o segerr segerr.c
$ ./segerr
10
段错误
咋一看，好像没有问题哦，不就是读取一个数据然后给输出来吗？
下面我们来调试一下，看看是什么原因？
$ gcc -g -o segerr segerr.c ...
How to automatically generate N “distinct” colors?
...re proposed, but none are optimal. Luckily, science comes to the rescue
Arbitrary N
Colour displays for categorical images (free download)
A WEB SERVICE TO PERSONALISE MAP COLOURING (free download, a webservice solution should be available by next month)
An Algorithm for the Selection of High-Con...
How to repeat a “block” in a django template
... I might try this tomorrow - I've been wondering how to save a bit of repetition in the templates and this seems like a good approach. thanks.
– thebiglife
Sep 27 '09 at 19:17
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How to avoid circular imports in Python? [duplicate]
...: Shorter access strings compared to pure absolute imports
Disadvantage: a bit more overhead due to extra function call
main/sub/a.py
import main.sub.b
b_mod = lambda: main.sub.b
class A():
def __init__(self):
print('in class "A":', b_mod().B.__name__)
main/sub/b.py
import main.su...
Provide an image for WhatsApp link sharing
...ime on every device. I tested 2.x Mb images and even that seemed to work 9/10 times. <300KB is the safest approach, but you should be fine using larger images as of 18-02-2020. I would recommend keeping the file size below 2MB, though. And definitely throw your image through TinyPNG or any other ...
How do I auto-hide placeholder text upon focus using css or jquery?
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this comment is a win. works with dynamic controls, like kendo too
– reflog
Feb 11 '15 at 9:39
1
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How to send a command to all panes in tmux?
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A bit late to the party but I didn't want to set and unset synchronize-panes just to send one command so I created a wrapper function around tmux and added a custom function called send-keys-all-panes.
_tmux_send_keys_all_pane...
Mac OS X - EnvironmentError: mysql_config not found
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