geometry
Algorithm to find special point k in O(n log n) time
Give ann log n time lower bound for an algorithm to check if a set of points has a special point k. k is defined as:[详细]
2023-04-09 18:50 分类:问答Looking for Polygon Geometry library with specific capabilities
I am doing a survey of polygon/geometric algorithm libraries implemented in Objective C, C or C++ (in that order of preference). I ha开发者_JS百科ve very specific needs, so I figured I\'d ask the comm[详细]
2023-04-09 06:16 分类:问答how to parse this json data to java
Here is the json code..i am new to json parsing..so please let me know how to parse this json data to java.[详细]
2023-04-09 06:09 分类:问答MATLAB/Octave: cut a lot of circles from a image
I have an matrix (image) and information about interesting part within circles (center corrdinates and radii given). I want to cut for all the circles the[详细]
2023-04-09 05:18 分类:问答How do I calculate the difference of two angle measures? [duplicate]
This question already has answers here: How can I find the smallest difference between two angles around a point?[详细]
2023-04-08 13:33 分类:问答Circle Detection
I need help developing a circle detection algorithm to detect snooker balls. Does anyone know 开发者_如何学Goany algorithms that can be implemented in C and open cv? I\'m having trouble getting this d[详细]
2023-04-08 13:00 分类:问答3d orthogonal projection on a plane
I have a point in 3d P(x,y,z) and a plane of view Ax+By+Cz+d=0 . A point in plane is E.Now i want to project that 3d point to that plane and get 2d coordinates of the projected point relative to the p[详细]
2023-04-08 03:56 分类:问答2D Circle and rectangle intersection tests
What I\'m doing is testing to see what the l开发者_如何学Pythonevel of intersection between a circle and rectangle. I would like to find whether the rectangle is completely inside the circle, partiall[详细]
2023-04-07 17:41 分类:问答Javascript's geometrical methods: Zero isn't exactly zero, is it?
In a simple geometric program written in Javascript and Canvas, when I set the angle to 270° (1½π), I expected the Math.cos(θ) to go to zero.The vector is straight down from the ce[详细]
2023-04-07 13:31 分类:问答Draw a circle in WPF using min(width, height)/2 as radius
How I can draw a circle in WPF (without code-beh开发者_如何学Cind) using min(width, height)/2 as radius?you can do it in pure XAML you just need to use Binding for the values.You also have to make sur[详细]
2023-04-06 19:05 分类:问答