Basically I'm looking for something that would easily enable me to display a world map onscreen (most likely would consume the entire size of the window, not that this should matter) and get pixel based coordinates for certain real-world coordinates, which would then be used to visualize some data periodically obtained from the server (w...
I want to find an element in the map using map::find(key), and then iterate the map in reverse order from the point where I found the element, till the beginning (i.e. until map::rend()). However, I get a compile error when I try to assign my iterator to a reverse_iterator. How do I solve this? ...
I have the following map structure: map < pair < int,int >, object* > and I wish to insert into it. How would I do it since I am trying to insert a pair and an object and I must make a pair out of this. Should I create a new pair using make_pair() out of the pair and object that I have? If so, could you please let me know how to do this?...
I'm writing a command line program in ANSI C to parse a Quake 2 map file to report how many entities and textures are being used. My development machine is MacBook. I'm testing on OS X Snow Leopard (32-bit), Windows XP (32-bit) and Vista (64-bit), and Ubuntu 9.10 (32-bit). I had a crashed bug on Vista where the program would hanged with...
How to create a complex map reduce function in couchdb to span a view over multiple documents with same attribute names to give back a single json object? What is the most efficient way to manage this? Is a nested set/source algorithm suitable for couchdb (changes are very write intensive)? ...
I have two search/replace commands that I find myself running in vim fairly often to clean up html code so I can copy/paste it online. The commands are: :%s!<!\<!g :%s!>!\>!g I wanted a way I could map both of these commands to be run together ... I did some searching for how to use the :map commands in vimrc, however, I can't ...
ArcGIS Server lets you create cached map services. These can be consumed by various applications (ArcGIS Desktop, web apps, etc) I would like to get an idea on which areas of my cache are getting hit the most. I would like to visualise these results using a heat map overlaid onto the same cached map. I was thinking of utilising something...
Hi! I have a database that has a one-to-one relationship modeled between a Person and a Address (that uses person id). However, I cannot find a way to make the map using NHibernate. My table structure is the following: PersonTable PersonId PersonName PersonAge AddressTable PersonId CountryName StreetName StateName And I would l...
Hi I am trying to Persist a Map in Hibernate as follows: public class Product{ @OneToMany @MapKey(name="id") private Map<Company,ProductCompany> productCompanies=new HashMap<Company,ProductCompany>(); } public class Company{ private int id; } public class ProductCompany(){ @ManyToOne private Product product; @ManyToOne p...
Greetings, Learning Scala currently (2.7.7) and needed to reverse a Map to do some reverse value->key lookups. I was looking for a simple way to do this, but came up with only: (Map() ++ origMap.map(kvp=>(kvp._2->kvp._1))) Anybody have a more elegant approach? ...
'map' preserves the number of elements, so using it on a Tuple seems sensible. My attempts so far: scala> (3,4).map(_*2) error: value map is not a member of (Int, Int) (3,4).map(_*2) ^ scala> (3,4).productIterator.map(_*2) error: value * is not a member of Any (3,4).productIterator.map(_*2) ...
I have the following typedef's in my code: typedef unsigned long int ulint; typedef std::map<ulint, particle> mapType; typedef std::vector< std::vector<mapType> > mapGridType; particle is a custom class with no default constructor. VS2008 gives me an error in this code: std::set<ulint> gridOM::ids(int filter) { std::set<ulint> r...
I am initializing a map map<string,int> ex; in C++. I could not find contains_key or similar function in stl, hence I am just using ex[inputString]++; The debugger shows the int to be initialized to zero correctly, is it a good assumption? ...
Below is the class used as the value in a map: class Book { int m_nId; public: // Book() { } Inside main(): map for( int i = 0; i ++i ) { Book b( i ); mapBooks[ i ] = b; } The statement causing the error is: mapBooks[ i ] = b; If I add a default constructor, the error does not appear...
Hello, I need to implement a MultiKeyMap, where I can have 2 keys and a value. I was looking to Apache collections MultiKeyMap, but I'm not sure if it is the best one. My problem is that I need to use this MultiKeyMap in a Web environment, and the Apache implementation is not thread safe (and Collections.synchronizedMap(..) doesn't wor...
Hi, There are a string and a proc object. The proc object is used to manipulate the string. s = "10" p = Proc.new { |i| i.to_i } [s].map(&p).first #=> 10 This works. But is there a better way to do that when s and p are given? Thanks. Sam ...
hi, I have checked out the source code for osmdroid from code.google.com, everything is working great except Tapping the overlays, I don't what is wrong with it, as I have seen some screen shots of it being tapped. ...
Hi, I am new to iphone development. I have created map applications and i displayed the cuurent locations and drop a pin to the current location. now i want to display the title and subtitle of the current location when i am clicking the pin. Please help me out. Thanks. ...
As I understand it, there are a couple of ways (maybe others as well) to create a shallow copy of a Map in Java: Map<String, Object> data = new HashMap<String, Object>(); Map<String, Object> shallowCopy; // first way shallowCopy = new HashMap<String, Object>(data); // second way shallowCopy = (Map<String, Object>) ((HashMap<String, Ob...
I have a problem with map and list in GWT. I need to put a map in to a list but GWT does not support ArrayList and HashMap since they are not serialized types. Exactly I want to create following list with out using ArrayList and HashMap ArrayList<HashMap<String, Object>> map = new ArrayList<HashMap<String,Object>>(); Thank you for new...