I'm trying to learn and understand more about mapping and displaying values on a map. (GIS)
At the moment I'M looking to take some values and apply those values to a tile or bin on a map.
Ideally I'd like the tile sizes to be uniform, like 100 meters, 500 meters, etc.
Is there a standard method for creating uniform tile sizes?
Or
Are what are common accepted method to deal with this kind of data display?
(Currently I'm using geodjango and it's related toolset geos, proj4, etc)
I am having a a method which listens continuously to a stream from a server and writes that data to datastore in google app which is later on retrieved by other methods.
How can i do that in google app engine i.e calling that method one time during the starting of app and having it running for unlimited time without affecting other things.
I am new to java world,So please help from that point of view also.How's that done in Java?
Python: How to get the caller's method name in the called method?
Assume I have 2 methods:
def method1(self):
...
a = A.method2()
def method2(self):
...
If I don't want to do any change for method1, how to get the name of the caller (in this example, the name is method1) in method2?
I am playing with custom view and routes. I think that I have everything right but obviously not. Essentially I tried to copy the show method and show.html.erb but for some reason it will not work.
My controller
class fatherController < ApplicationController
def show
@father = Father.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => @father }
end
end
def ofmine
@father = Father.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => @father }
end
end
end
My routes.rb
Parent::Application.routes.draw do
resources :fathers do
resources :kids
end
match 'hospitals/:id/ofmine' => 'father#show2'
end
when I go to
127.0.0.1:/father/1
it works fine but when I try to go to
127.0.0.1:/father/1/ofmine
it gives the following error. It doesn't matter what the variable/method that is called; it occurs at the first one to be displayed. Both show.html.erb and show2.html.erb are the exact same files
My Error from webserver commandline
> Processing by fathersController#show2
> as HTML Parameters: {"id"=>"1"}
> Rendered fathers/show2.html.erb within
> layouts/application (31.6ms) Completed
> in 37ms
>
> ActionView::Template::Error (undefined
> method `name' for nil:NilClass):
> 4: <td>Name</td><td></td>
> 5: </tr>
> 6: <tr>
> 7: <td><%= @father.name %></td><td></td>
> 8: </tr>
> 9: <tr>
> 10: <td>City</td><td>State</td> app/views/fathers/show2.html.erb:7:in
> `_app_views_fatherss_show__html_erb___709193087__616989688_0'
Error as displayed on actual page
NoMethodError in Fathers#show2
Showing
/var/ruby/chs/app/views/fathers/show2.html.erb
where line #7 raised:
undefined method `name' for
nil:NilClass
Extracted source (around line #7):
4: Name 5:
6: 7: <%=
@father.name % 8:
9: 10:
CityState
If anyone could tell me what in the world I am doing wrong I would appreciate it greatly.
I'm trying to redefine the File.dirname method to first change %20s to spaces. But the following gives me an error
class File
old_dirname = instance_method(:dirname)
define_method(:dirname) { |s|
s = s.gsub("%20"," ")
old_dirname.bind(self).call(s)
}
end
This trhows a NameError exception: undefined method 'dirname' for class 'File'
What is the right way to do this?
Using Scala 2.8 RC1 or newer, what is the best (easiest and/or most direct) method to "peek" at the waiting messages in an actor's mailbox (from within the same actor's act() method) in order to examine what is in the queue, without having to react/receive the messages and/or disturb the current contents of the mailbox in any way.
The purpose of this is so that an actor may determine if it is safe to process a request to exit by first determining if any of the remaining mailbox messages are ones that must be processed, instead of just dropped by stopping the actor immediately.
2 Interfaces with same method names and signatures. But implmented by a single class then how the compiler will identify the which method is for which interface.
Hi,
I want to exclude a particular method of a class from java compilation.
For eg:
class Test {
public void printdouble(){}
public void printint(){}
}
Depending upon some properties, I want to exclude printdouble method during compilation.
NOTE: I'm using ant script for java compilation
Thanks in Advance
Soman
I am getting this warning in xcode 3.1.3 iphone os 3.0.
This method is also not available in the NSDate class.
But I am getting the date from this method.
Can anyone please tell me How can I get rid of this warning????
Is there a way to call java method in .xhtml?
I just want to be able to call java.net.URLEncoder.encode() method from xhtml file.
Is it possible to do this?
In jsp it was very easy to do
<% String encodedURL = java.net.URLEncoder.encode(url, type); %
I have a java.util.Set<City> cities and I need to add cities to this set in 2 ways:
By adding individual city (with the help of cities.add(city) method call)
By adding another set of cities to this set (with the help of cities.addAll(anotherCitiesSet) method call)
But the problem in second approach is that i don't know whether there were any duplicate cities in the anotherCitiesSet.
I want to do some processing whenever a duplicate entry is tried to be entered in thecities set.
I am working with ruby 1.8.6 (2007-03-13 patchlevel 0) [x86_64-linux] and I get
undefined method `bytes' for #<String:0x2a95ec2268> (NoMethodError)
even though my code works on ruby 1.8.7. patchlevel 249
I saw somewhere that you need to add require "jcode" for a similar method not defined error with each_byte. I tried adding that but it still does not work. Any suggestions are very appreciated.
Hi there, I'm attempting to build a Windows Service which will execute some method when a user clicks a button in a WinForms application. I'd like to be able to pass in a few strings when the user presses the GUI button which will have the service consume them and processes a specific method. What's the best way to do this?
Thanks for help.
Normally to pass parameters via in RSpec we do:
params[:my_key] = my_value
get :my_method
Where my_method deals with what it received from params. But in my controller I have a method, which takes args directly i.e.:
def my_method(*args)
...
end
How do I call the method with those args from within the test? I've tried get :my_method(args) but Ruby interpreter complains about syntax error.
In dojo, one cannot call a overidden superclass method outside of the same method in the derived class (for which there is this.inherited(), other than that one can call using class_name.function_name.apply). This feature is no longer there because of some refactoring and dojo guys are not going to put it back because they are not convinced about a good enough case for this. Please read this mail thread for details. Isn't there a good enough case for this functionality? Why or why not?
I am working on a django project and i want to send a signal when something get's added to some models related set, e.g. we have an owner wo has a set of collectables and each time the method owner.collectable_set.add(something) is getting called i want signal like "collectable_added" or something. signals are clear to me, but in which manager(?) the "add" method sits that i want to override is unclear to me.
Hello, I have task to get static method using reflection like this :
myType.GetMethod("MyMethod",BindingFlags.Static | BindingFlags.Public | BindingFlags.InvokeMethod);
In case if class contains MyMethod all works correctly, but in case if parent class contains MyMethod I receive null :(. How can I call static method from the parent using reflection like code that I describe above?
Thanks.
public class Testing extends JDialog {
public MyClass myClass;
public Testing() {
}
}
given the above code, is it possible to override a method in myClass in Testing class?
say myClass has a method named computeCode(), will it be possible for me to override it's implementations in Testing? sorry it's been a long time since I've coded.
I'm learning C# and I've made a recursive insert-method for a linked list:
public static int recursiveInsert(ref int value, ref MyLinkedList list) {
if (list == null)
return new MyLinkedList(value, null);
else {
list.next = recursiveInsert(ref int value, ref list.next);
return list;
}
}
How would you modify this method to make the recursive call look like this:
recursiveInsert(value, ref list.next)
instead of:
list.next = recursiveInsert(ref int value, ref list.next);
Object doesn't support this property or method
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NotSupportedException: Object doesn't support this property or method
In struts 1.2, when an URL in the form http://foo.com/barAction.do is invoked, this will call the execute method (or process) in the action class that was mapped to barAction.
Is it possible to call a different method other than the execute (or process) in the same action class when the above URL is invoked?
class A
private
def greet
puts "hello!"
end
end
class B < A
def greet
super
end
end
B.new.greet # => Attempt to call private method
because super isn't a method you can't use the usual send(:super). So how's it done?
How do I pass an argument to my custom save method, preserving proper *args, **kwargs for passing to te super method? I was trying something like:
form.save(my_value)
and
def save(self, my_value=None, *args, **kwargs):
super(MyModel, self).save(*args, **kwargs)
print my_value
But this doesn't seem to work. What am I doing wrong?
I've got a method:
public native void doSomething(ByteBuffer in, ByteBuffer out);
Generated by javah C/C++ header of this method is:
JNIEXPORT void JNICALL Java__MyClass_doSomething (JNIEnv *, jobject, jobject, jobject, jint, jint);
How can I get a data array from jobject (that is a ByteBuffer instance) ?