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Drop shadow for PNG image in CSS
... 100 images just by typing one command! For example:
for i in "*.png"; do convert $i '(' +clone -background black -shadow 80x3+3+3 ')' +swap -background none -layers merge +repage "shadow/$i"; done
The above (shell) command takes each .png file in the current directory, applies a drop shadow, and...
Calculate the center point of multiple latitude/longitude coordinate pairs
...on of the approach recommended there for spherical coordinates would be:
Convert each lat/long pair into a unit-length 3D vector.
Sum each of those vectors
Normalise the resulting vector
Convert back to spherical coordinates
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FFMPEG (libx264) “height not divisible by 2”
...as the pixel format; it didn't care about the video size. Then I needed to convert it to yuv420p, and then it cared about the video size. I looked up yuv420p on wikipedia, I think it's a multi-pixel color format, that needs the image to be a specific size. Not sure why it matters compressed, though....
Does MS SQL Server's “between” include the range boundaries?
...mes between two dates, you can also cast the DateTime to a Date, eg: where CONVERT(DATE, MyDate) BETWEEN '2017-09-01' and '2017-09-30' This approach makes the time element of the DateTime irrelevant
– Pete
Sep 15 '17 at 9:30
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Python import csv to list
...e as opposed to text mode. On some systems text mode means that \n will be convertes to platform-specific new line when reading or writing. See docs.
– Maciej Gol
May 24 '15 at 8:12
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Add text to Existing PDF using Python
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You may have better luck breaking the problem down into converting PDF into an editable format, writing your changes, then converting it back into PDF. I don't know of a library that lets you directly edit PDF but there are plenty of converters between DOC and PDF for example.
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Store JSON object in data attribute in HTML jQuery
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The nice thing is that the string in the data- attribute is automatically converted to a JavaScript object. I don't see any drawback in this approach, on the contrary! One attribute is sufficient to store a whole set of data, ready to use in JavaScript through object properties.
(Note: for the dat...
Is there a difference between using a dict literal and a dict constructor?
Using PyCharm, I noticed it offers to convert a dict literal :
10 Answers
10
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Windows XP or later Windows: How can I run a batch file in the background with no window displayed?
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Convert the batch file to an exe. Try Bat To Exe Converter or Online Bat To Exe Converter, and choose the option to run it as a ghost application, i.e. no window.
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What can , and be used for?
...does basically the following:
Get the request parameter value by name id.
Convert and validate it if necessary (you can use required, validator and converter attributes and nest a <f:converter> and <f:validator> in it like as with <h:inputText>)
If conversion and validation succee...