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Get distance between two points in canvas
I have canvas drawing tab and want lineWidth to be based on distance between two last mousemove coordinate updates. I will make translation of distance to width myself, I just need to know how to get distance between those points (I already have coordinates of those pointes).
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Plot correlation matrix into a graph
...ation matrix, plot it using one of the various tutorials out there.
Using base graphics:
http://flowingdata.com/2010/01/21/how-to-make-a-heatmap-a-quick-and-easy-solution/
Using ggplot2:
http://learnr.wordpress.com/2010/01/26/ggplot2-quick-heatmap-plotting/
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Compare given date with today
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One caution based on my experience, if your purpose only involves date then be careful to include the timestamp. For example, say today is "2016-11-09". Comparison involving timestamp will nullify the logic here. Example,
// input
$var...
How to get terminal's Character Encoding
...is is what worked for me on a CentOS system. It showed the system encoding based upon current language settings. The terminal settings used to get to that machine are a different story and a function of the client being used.
– Phil DD
Apr 6 '18 at 17:15
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How to perform static code analysis in php? [closed]
...ighter, making it suitable for production servers. The tool includes a PHP-based interface.
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PHP - Modify current object in foreach loop
...d implementations that I've seen. It's designed to return a modified array based upon input array element (high level ignoring language compile/runtime type preference); a loop is meant to perform more logic.
For retrieving objects by ID / PK, depending upon if you are using SQL or not (it seems su...
Correct way to convert size in bytes to KB, MB, GB in JavaScript
...toLowerCase() == 'si') {
// SI units use the Metric representation based on 10^3 as a order of magnitude
var orderOfMagnitude = Math.pow(10, 3);
var abbreviations = ['Bytes', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
} else {
// IEC units use 2^10 as an ord...
Batch files: How to read a file?
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Jeb, I asked a related question based on your solution above in stackoverflow.com/questions/11408295/…
– Nicholas
Jul 10 '12 at 7:15
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What is trunk, branch and tag in Subversion? [duplicate]
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A trunk is considered your main code base, a branch offshoot of the trunk. Like, you create a branch if you want to implement a new feature, but don't want to affect the main trunk.
TortoiseSVN has good documentation, and a great diff tool.
I use Visual studi...
How to get all Errors from ASP.Net MVC modelState?
... Hey Dunc - yes I suspect I have added that extension method to my code base and have forgotten about it and then thought it was a framework method LOL :(
– Tod Thomson
Feb 17 '13 at 4:55
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