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Circle line-segment collision detection algorithm?
...tion is found by..
Plugging:
P = E + t * d
This is a parametric equation:
Px = Ex + tdx
Py = Ey + tdy
into
(x - h)2 + (y - k)2 = r2
(h,k) = center of circle.
Note: We've simplified the problem to 2D here, the solution we get applies also in 3D
to get:
Expand
x2 - 2xh + h2 + y2 - 2yk + k2 -...
How to print out all the elements of a List in Java?
...
Here is some example about getting print out the list component:
public class ListExample {
public static void main(String[] args) {
List<Model> models = new ArrayList<>();
// TODO: First create your mode...
Python: Making a beep noise
...
interesting, it doesn't exists in my anaconda environment...is that weird?
– Charlie Parker
Jun 22 '16 at 20:16
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Entity Framework DateTime and UTC
... var properties = entity.GetType().GetProperties()
.Where(x => x.PropertyType == typeof(DateTime) || x.PropertyType == typeof(DateTime?));
foreach (var property in properties)
{
var attr = property.GetCustomAttribute<DateTimeKindAttribute>();
...
How to plot two columns of a pandas data frame using points?
...u can specify the style of the plotted line when calling df.plot:
df.plot(x='col_name_1', y='col_name_2', style='o')
The style argument can also be a dict or list, e.g.:
import numpy as np
import pandas as pd
d = {'one' : np.random.rand(10),
'two' : np.random.rand(10)}
df = pd.DataFrame(d...
IntelliJ shortcut to show a popup of methods in a class that can be searched
...older versions) | File Structure Popup (Ctrl+F12 on Windows, ⌘+F12 on OS X). Start typing method/symbol name to either narrow down the list or highlight the desired element. Press Enter to navigate to the selected element.
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What is compiler, linker, loader?
... +=================+
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| Lexical Analyzer|
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+-----------------+
| |
| Syntax Analyzer |
| |
+-----------------+
| ...
How do I get around type erasure on Scala? Or, why can't I get the type parameter of my collections?
... Java, did not get generics. This means that, at run time, only the class exists, not its type parameters. In the example, JVM knows it is handling a scala.collection.immutable.List, but not that this list is parameterized with Int.
Fortunately, there's a feature in Scala that lets you get around th...
Replace a value in a data frame based on a conditional (`if`) statement
... what if you have multiple columns?
– geodex
Apr 19 '15 at 21:33
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How can I dynamically set the position of view in Android?
How can I change the position of view through code? Like changing its X, Y position. Is it possible?
12 Answers
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