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Questions tagged [points]

A scoring system for games or algorithms. Geometric items should be tagged with coordinates or point.

This tag represents:

  • an arbitrary numerical counter for games or scoring algorithms

Please do not use this tag for:

  • a dimensional measurement for geometric calculations, such as [x, y, z] -- instead use
  • a coordinate in GPS mapping -- instead use
866 questions
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Algorithm to get the 2 most distant point in a 2D plane (for homework)

I have to make a efficient algorithm that gets two point that are the most distant from each other and I am trying to get the O(nlogn) complexity. I searched for an efficient algorithm, but all I could find is for the closest points. The output…
user12269498
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Given a set of points in 3d space, find all sets of points within a distance of eachother

I have a set of 3d points S. I need to find the set X of all sets of points in S which are within manhattan distance d of each other. i.e. for each set Y in X there exists atleast one point in 3d space that is within distance d of all points in…
jesse
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Highcharts draggable point drag step size

In following example, I need to drag the point by certain step size, e.g. by 10. See drag: function (e) { jsfiddle
Petr Perner
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Sort an ArrayList of Points in page line order

I need to order an ArrayList of Points in the page line order. Assume these points as minX and minY of Rectangle of text. Say like I have points like below Point(100,10), Point(110, 20), Point(125, 5), Point(130, 10) The Sorted order should be…
Ranju
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Initialize a Point2D in List<>

If I have a simple List< Point2D > declared. Example: List listOfPoints; /* What I tried */ Point2D point1; listOfPoints.add(point1); But, how does one initialize point1 so that I can have a coordinate of let's say (3,2)?
Jackson
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I cannot see the plot of my points in R

I am trying to plot a u vector using the R language. I have obtained U throught SVD applied to some training data. I have downloaded the useful library for tm and ggplot2. I want to plot the 2 dimensions of the vector U , which results from SVD of…
Marzo
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Sorting 2D Points in an array...what am I missing?

So here is the deal: I got a code from my colleague who cant figure out the mistakes he made. He wanted to sort the array first by Y, then by X (if Y=Y). Can you help? using System; using System.Collections; public class Point { public int x; …
woofcheck
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Least square distances

I have two ordered arrays of x(xcor) and y(ycor) values. Joining the first and last points gives a line. I want to compute the perpendicular distances of all points from this line. This is similar to least square distance. Is there a direct way to…
Abhishek Bhatia
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Random complex points from a circle and certain operation with them

My assingment is to write a progmar which chechs wether certain function defined as f(a,b,c) works. The function returns 0j if the given points on a complex plain (complex(a,b)) are in the same circle which center is 0. I can create the random…
Oliver
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Python, generating a ten Point polygon

I am attempting to generate a polygon with Points. I am using Python 3.4 on Windows 7. I would like to know where my error is in this line of code. leftEar = Polygon(Point(158,218), Point(160,208), Point(166,197), Point(174,186), Point(183,180),…
Michael
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Get Square corners from 2 points

I have 2 values and want to create a rectangle from it. So let's say: 1 = 1,1 2 = 10,8 So I want to calculate the upper left corner which would result in 1,8 and the lower right corner which would be 10,1. How can I achieve this with Java? Are…
user754730
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How to find points of drawcontour of a detected image?

I want to find points of a contour which is draw on object after following operation like background subtraction , findcontour ,drawcontour. My object is moving so that my contour is also not proper . and i want to find of maximum and minimum points…
coco
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MySQL Update Query - Incremental Number system - Syntax Problems

I've got a points system in a social media script, and I'm trying to get it so that when a user makes a post, it's adds a point to their account. The points is basically a column in my "profiles" table called "totalpoints". I've got a basic code…
Richard Evans
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Angle betwee three points ios xcode

CGPoint pointA = [self.appDelegate.points[0] CGPointValue];//first point CGPoint pointB = [self.appDelegate.points[1] CGPointValue];// second point CGPoint pointC = [self.appDelegate.points[2] CGPointValue];//third point CGFloat slopeAB = (pointB.y…
Manohar
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Calculating distance between two points on a flat plane? (php)

3rd grade question: How do you calculate the distance between two points on a flat surface? I have been going through the Google_Results and it seems everything i find applies to Long/Lat and not a flat surface. I'm working on making ObjectA…
WaxyChicken
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