How to map CAPS LOCK key in VIM?
Linux? With X, use xmodmap to alter the key mapping, e.g. xmodmap -e ‘clear Lock’ -e ‘keycode 0x42 = Escape’ Will map Esc to the CapsLock key. Google for more examples.
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boost::flat_map and its performance compared to map and unordered_map
I have run a benchmark on different data structures very recently at my company so I feel I need to drop a word. It is very complicated to benchmark something correctly. Benchmarking On the web, we rarely find (if ever) a well-engineered benchmark. Until today I only found benchmarks that were done the journalist way … Read more
Apply css to AREA MAP
Not possible with CSS. You might check out the Map Hilight jQuery plugin, though. EDIT 10.2011 ImageMapster is a more recent, and more powerful plugin you should also check out.
How to create Custom MKAnnotationView and custom annotation title and subtitle
To create a custom annotation view (your replacement for the standard pin), you can just set the image property of the MKAnnotationView in the viewForAnnotation method: – (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation { if ([annotation isKindOfClass:[MKUserLocation class]]) { return nil; } else if ([annotation isKindOfClass:[YourAnnotationClassHere class]]) // use whatever annotation class you used when creating … Read more
Custom Annotation view for userlocation not moving the mapview
Yes, you can have a custom view for the user’s location. Unfortunately, it’s harder to implement than it should be because even though the documentation for the viewForAnnotation delegate method claims that you can just supply your own view if the annotation class is MKUserLocation, the custom view does not then continue to move with … Read more
std::map, pointer to map key value, is this possible?
Section 23.1.2#8 (associative container requirements): The insert members shall not affect the validity of iterators and references to the container, and the erase members shall invalidate only iterators and references to the erased elements. So yes storing pointers to data members of a map element is guaranteed to be valid, unless you remove that element.
Difference between map and collect in Ruby?
There’s no difference, in fact map is implemented in C as rb_ary_collect and enum_collect (eg. there is a difference between map on an array and on any other enum, but no difference between map and collect). Why do both map and collect exist in Ruby? The map function has many naming conventions in different languages. … Read more
What does the “map” method do in Ruby?
The map method takes an enumerable object and a block, and runs the block for each element, outputting each returned value from the block (the original object is unchanged unless you use map!): [1, 2, 3].map { |n| n * n } #=> [1, 4, 9] Array and Range are enumerable types. map with a … Read more
Plot only on continent in matplotlib
There’s method in matplotlib.basemap: is_land(xpt, ypt) It returns True if the given x,y point (in projection coordinates) is over land, False otherwise. The definition of land is based upon the GSHHS coastline polygons associated with the class instance. Points over lakes inside land regions are not counted as land points. For more information, see here.
Android:Passing a hash map between Activities
The best way to do this is if you can express your data in the primitives supported by Bundle, so it can be placed in the Intent you are sending through the Intent.putExtra() methods. (EXCEPT for the use of Serializable, which is extremely slow and inefficient.) However you can’t do this because (a) you are … Read more