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An algorithm for inflating/deflating (offsetting, buffering) polygons
...ed this jsFiddle that uses JSTS (JavaScript port of JTS). You just need to convert the coordinates you have to JSTS coordinates:
function vectorCoordinates2JTS (polygon) {
var coordinates = [];
for (var i = 0; i < polygon.length; i++) {
coordinates.push(new jsts.geom.Coordinate(polygon[i...
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'
...ny supplementary characters in
utf8 columns and you need not worry about converting characters or
losing data when upgrading utf8 data from older versions of MySQL.
So to support these characters, your MySQL needs to be 5.5+ and you need to use utf8mb4 everywhere. Connection encoding needs to ...
What is default color for text in textview?
...default). If needed, use the TextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)
– Bonatti
Sep 26 '18 at 13:50
...
how to rotate a bitmap 90 degrees
There is a statement in android canvas.drawBitmap(visiblePage, 0, 0, paint);
10 Answers
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What's the deal with a leading underscore in PHP class methods?
... code abstraction, should be prefixed with an underscore.
public function convert_text()
private function _convert_text()
Other frameworks do the same, like
Cakephp:
does the same:
Member Visibility
Use PHP5’s private and protected keywords for methods and variables. Additionally, non-public m...
What is the argument for printf that formats a long?
The printf function takes an argument type, such as %d or %i for a signed int . However, I don't see anything for a long value.
...
Programmatically saving image to Django ImageField
...
Here is a method that works well and allows you to convert the file to a certain format as well (to avoid "cannot write mode P as JPEG" error):
import urllib2
from django.core.files.base import ContentFile
from PIL import Image
from StringIO import StringIO
def download_im...
Reading and writing binary file
I'm trying to write code to read a binary file into a buffer, then write the buffer to another file. I have the following code, but the buffer only stores a couple of ASCII characters from the first line in the file and nothing else.
...
SQL query return data from multiple tables
... Joins (this stackOverflow answer is excellent to describe types of joins)
Intersect queries (and how to reproduce them if your database doesn't support them) - this is a function of SQL-Server (see info) and part of the reason I wrote this whole thing in the first place.
Part 2
Subqueries - what...
The name does not exist in the namespace error in XAML
... I have a simple MusicPlayer tutorial app I am using to learn WPF. I am converting a C# version of the tutorial to VB.NET step by step.
...