spot7.org logo
Home PHP C# C++ Android Java Javascript Python IOS SQL HTML Categories

Calculating the distance between 2 given points


Here :

class Point{
     int x;
     int y;

     .....
     .....

     public double distance(int x, int y) {
        double d = Math.sqrt( Math.pow(x2-x1, 2) +
Math.pow(y2-y1, 2) );  //ERROR IN THIS LINE
        return distance; //ERROR HERE TOO...(2)
     }
}

There is no x1,x2,y1,y2 defined in the class or in the method parameter.

Swap it with the following line:

double d = Math.sqrt( Math.pow(this.x-x, 2) + Math.pow(this.y-y, 2) );

(2) Error 2 Swap with this line:

return d;


Categories : Java

Related to : Calculating the distance between 2 given points
Calculating the distance between 2 points using getY() and getX()
The problem is you haven't actually created your getter and setter methods (specifically the getter methods). In Java, getter and setter methods aren't automatically created for you; you have to explicitly create them yourself. So, just add the following code: public double getX() { return x; } public void setX(double x) { this.x = x; } public double getY()

Categories : Java
calculating minimum Euclidean distance within a data frame
If I followed your question correctly then it would seem that you want something like this: minxED = min(abs(x(2:end) - x(1:end-1))); which gets the L1 distance between adjacent elements in the vector x and then finds the minimum distance.

Categories : Matlab
Calculating distance between word/document vectors from a nested dictionary
The first bit is easy enough. You want to build up a dictionary containing file numbers, and the sum of the squares of the values for each file number, something like this (untested) should do it: fileVectors = {} for wordDict in myDict.itervalues(): for fileNumber, wordCount in wordDict.iteritems(): fileVectors[fileNumber] = fileVectors.get(fileNumber, 0) + (wordCount ** 2)

Categories : Python
Calculate Euclidean Distance of pairs over 3 points?
When you transform your data.frame into a matrix, all values become characters, I don't think that is what you want... (moreover, you're trying to compute distance with the "class" names as one of the variables...) The best would be to put your "Class" as row.names and then compute your distances and hclust : mm<-Median[,-1] row.names(mm)<-Median[,1] Then you can compute the euclidean di

Categories : R
Calculate the distance between my current and other points in MySQL using Laravel
It would be easiest way to make query scope for a model where information about locations are stored (or write row query) which would use MySQL stored procedure that calculates the stuff (of using Sphinx search as in your example). Than it is not so hard to create REST API in Laravel that will take point coordinates and use this scope to find and return results of closest POIs.

Categories : PHP
Recently Add
Concurrent collection to 50/50 read/write
How to get unique members of object class (groupofUniqueNames) from an ldap server using java
Custom error reporting: how to log down function arguments (and possibly locals) in an exception handler?
Websphere MQ message redelivery
How to use BigDecimal to achieve following code instead of using double or float?
What exactly do the service() method of this HttpServlet?
Why does the Java API use int instead of short or byte?
Hibernate. One to one mapping without cross references
How to pass array to a java method
BooleanFieldEditor doesn't load value from PreferenceStore
NoClassDefFoundError when I call the class through commnad line
Shopizer Search
Java - Bank System + Transaction Function
Hadoop security using Apache DS / Apache Directory Studio
Multiple property-placeholder with overlapping locations does not work?
could not remove/add jpanel in jframe
Java garbage collection verbose not working
If child class has a variable with same name as private variable in parent what will be used?
Jackson parse json with a one-to-many relationship in a single step
Excel opens wrong view after generating in Apache POI
On Switch How to use logic operator on case JAVA
Java: What is the absolut first second in Calendar?
Waiting One Second for a button click, if button not clicked call function
Fastest way to extract part of a large JSON File
copy directory operation using linux command in java
Figuring out how to Format Printing
Why does @FunctionalInterface have a RUNTIME retention?
Collision detection Libgdx rectangles
Cannot find symbol in method changeRecL but declared in main method
Receiving "java.net.SocketException: Connection reset" when connecting from dotnet client to a java server
© Copyright 2017 spot7.org Publishing Limited. All rights reserved.