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How to export plots from matplotlib with transparent background?
...displaying it using Matplotlib so as to save you graph as a png file.
And if you want to turn all white pixel transparent, there's this other question : Using PIL to make all white pixels transparent?
If you want to turn an entire area to transparent, then there's this question: And then use the P...
Logcat not displaying my log calls
... a bit quircky, and sometimes only shows the last line in the logcat view. If this happens, try to clear the log. After that, you should get all the log entries again (works for me anyway).
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How do you rename a table in SQLite 3.0?
...ke this:
ALTER TABLE existing_table
RENAME TO new_table;
I am not sure if the dot notation works, but I assume that the following is also correct:
ALTER TABLE existing_database.existing_table
RENAME TO new_database.new_table;
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For homebrew mysql installs, where's my.cnf?
....cnf by default. As such, MySQL starts with all of the default settings. If you want to create your own my.cnf to override any defaults, place it at /etc/my.cnf.
Also, you can run mysql --help and look through it for the conf locations listed.
Default options are read from the following files in...
How to represent empty char in Java Character class
...r value for which String.replace(char, char) would return a string with a diffrent length.
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What is javax.inject.Named annotation supposed to be used for?
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Use @Named to differentiate between different objects of the same type bound in the same scope.
@Named("maxWaitTime")
public long maxWaitTimeMs;
@Named("minWaitTime")
public long minWaitTimeMs;
Without the @Named qualifier, the injecto...
Center Oversized Image in Div
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Yeah I've experienced the -100% issue as well ^^. Btw: if you add min-width and min-height of 100% you basically get a background-size: cover; behaviour with image tags -> jsfiddle
– Simon
Sep 9 '14 at 7:55
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Bash function to find newest file matching pattern
...s when the filenames can contain funny characters like spaces or newlines. If you can guarantee that the filenames will not contain funny characters then parsing ls is quite safe.
If you are developing a script which is meant to be run by many people on many systems in many different situations the...
When to use IMG vs. CSS background-image?
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Proper uses of IMG
Use IMG if you intend to have
people print your page and you want the image to be included by default.
—JayTee
Use IMG (with alt text) when the image has an important semantic meaning, such as a warning icon. This ensures that th...
How is the java memory pool divided?
... I'm not sure @dfa is completely correct as the Java Virtual Machine Specification clearly states: “Although the method area is logically part of the heap, simple implementations may choose not to either garbage collect or compact it.” However it is clear that jconsole shows the Code Cache and...