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How do you detect where two line segments intersect? [closed]
... intersect the intersection point may be stored in the floats i_x and i_y.
char get_line_intersection(float p0_x, float p0_y, float p1_x, float p1_y,
float p2_x, float p2_y, float p3_x, float p3_y, float *i_x, float *i_y)
{
float s1_x, s1_y, s2_x, s2_y;
s1_x = p1_x - p0_x; s1_y = p1...
Text editor to open big (giant, huge, large) text files [closed]
... for quick scripts, and its .. (range flip-flop) operator makes for a nice selection mechanism to limit the crud you have to wade through.
For example:
$ perl -n -e 'print if ( 1000000 .. 2000000)' humongo.txt | less
This will extract everything from line 1 million to line 2 million, and allow you ...
Why use prefixes on member variables in C++ classes
...t history, C++ strings are by common convention pointers to nul-terminated char arrays, and it's not really all that difficult to know that "customerName" is a string!
However, I do use prefixes to specify the usage of a variable (essentially "Apps Hungarian", although I prefer to avoid the term Hu...
AngularJS - Binding radio buttons to models with boolean values
...t when I use your solution and change the radio buttons all that were once selected are true and they don't switch back to false. Is there a solution for this? (problem also exists in OP's Fiddle)
– Dominik G
Apr 16 '15 at 10:05
...
How do I configure PyCharm to run py.test tests?
...s the default, when I right-click on the project in the Projects panel and select New => Python File, the Kind: dropdown offers only: Python file, Unit test, Python stub, not Pytest. I have looked in all of the locations mentioned in the threads above. What am I missing?
–...
Converting an array of objects to ActiveRecord::Relation
...e clause will generate a SQL statement with IN that looks something like:
SELECT .... WHERE `my_models`.id IN (2, 3, 4, 6, ....
Keep in mind that the ordering of the array will be lost - But since your objective is only to run a class method on the collection of these objects, I assume it won't b...
target input by type and name (selector)
...
You want a multiple attribute selector
$("input[type='checkbox'][name='ProductCode']").each(function(){ ...
or
$("input:checkbox[name='ProductCode']").each(function(){ ...
It would be better to use a CSS class to identify those that you want to sele...
Get lengths of a list in a jinja2 template
... Thanks @AlexMartelli. In addition we could use inline syntax like {{ form.select_field(size=5 if form.select_field.choices|count > 5 else form.select_field.choices|count) }}
– Filipe Bezerra de Sousa
Jun 28 at 23:52
...
Add shadow to custom shape on Android
...;/shape>
</item>
</layer-list>
Then you should have a selector with diferent versions of the button, something like:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawabl...
Is there any way to delete local commits in Mercurial?
...ust activate the extension "strip" in:
File/Settings/Extensions/
Select strip
Then select the bottom revision from where you want to start striping, by doing right click on it, and selecting:
Modify history
Strip
Just like this:
In this example it will erase from the ...