points

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What's the fastest Java collection for single threaded Contains(Point(x,y)) functionality?

In my application I need to check a collection of 2D coordinates (x,y) to see if a given coordinate is in the colle开发者_开发百科ction,it needs to be as fast as possible and it will only be accessed[详细]

2023-01-02 19:42 分类：问答
GeoDjango: is there an out-of-the-box way to generate clusters of points?

I\'m trying to compute clusters on a set of points in Python, using GeoDjango. The problem: Given a set of points, output a set of clusters of those points.[详细]

2023-01-01 08:49 分类：问答
Sort a 2D Points List (first by X and then Y)

I am trying to sort a List of 2D Points first by x co-ordinate and then by y co-ordinate. I implemented the IComparer interface as follows:[详细]

2022-12-29 20:38 分类：问答
Finding all points common to two circles

In Python, how would one find all integer points common to two circles? For example,开发者_C百科 imagine a Venn diagram-like intersection of two (equally sized) circles, with center-points (x1,y1) an[详细]

2022-12-28 06:32 分类：问答
Plotting points so that they do not overlap if they have the same co-ordinates

I have a function that takes longitude and latitude and converts it to x and y to be plotted. The conversion to X and Y is working fine and that is not what I have the problem with.[详细]

2022-12-26 23:15 分类：问答
FLOT: How to make different colored points in same data series, connected by a line?

I think I may have stumbled onto a limitation of Flot, but I\'m not sure. I\'m tryin开发者_运维问答g to represent a single data series over time. The items\' \"State\" is represented on the Y-Axis (th[详细]

2022-12-20 06:21 分类：问答
Fast way to convert array of points into triangle strip?

I have an array of CGPoints (basic struct with two floats: x and y). I want to use OpenGL ES to draw a t开发者_C百科extured curve using these points. I can do this fine with just two points, but it ge[详细]

2022-12-15 02:23 分类：问答
Automatic selection of control points in Matlab

Is there a way to select the control points automatically in Matlab instead 开发者_运维问答of manually selecting them by cpselect? Thank you very much.I just recently worked on a project where I had t[详细]

2022-12-14 13:23 分类：问答
Closest point to a given point

I have a set K of rand开发者_如何转开发omly selected pixels in a 2D image. For every other pixel in the image I need to find out which pixel in set K is closest to it (using the standard sqrt(dx^2 + d[详细]

2022-12-13 19:57 分类：问答
Optimizing map drawing

I have problem optimizing drawing Google-like map. It works OK for hundreds of points, but when it comes to larger amounts like thousands it gets fuzzy and slow. Also unzoomed it looks weird.[详细]

2022-12-12 23:54 分类：问答