In 3D space I have some points (x, y and z) and want to split them by reconstructing some exisiting planes. These are my simplified points: The big list has one sublist which has two arrays. I reality points has more subliststs and each sublist may also have several arrays. Then, In this simlified example I have two planes among
Tag: geometry
how to find perpendicular projection of point on a surface in python
I have a bunch of points in 3d space (x,y and z) and want to find their perpendicular projection on a surface in python. My surface is created by four points using the following function: These are my input points stored as list for creating the surface: I want to ind the perpedicular projection of the following points in the
How to find nearest point in segment in a 3d space
I am solving an algorithmic problem which sounds like this: Given a three-dimensional space and segments in it. Find the point with minimal distance to all of the segments. Example input: in the first line N – the number of segments, in the N next lines given the begin and the end of each segment: x1 y1 z1 x2 y2
How to generate a random sample of points from a 3-D ellipsoid using Python?
I am trying to sample around 1000 points from a 3-D ellipsoid, uniformly. Is there some way to code it such that we can get points starting from the equation of the ellipsoid? I want points on the surface of the ellipsoid. Answer Here is a generic function to pick a random point on a surface of a sphere, spheroid
Calculate the euclidian distance between an array of points to a line segment in Python without for loop
I’m looking for a function to compute the euclidian distance between a numpy array of points with two coordinates (x, y) and a line segment. My goal is to have a result in under 0.01 sec for a line segment and 10k points. I already found a function for a single point. But running a for loop is very inefficient.
Ray and square/rectangle intersection in 3D
Hei. Are making a game and are looking for a ray intersection onto a square or a rectangle only in 3D space. Have search the web and found many solutions but nothing i can understand have a line and line segment intersection script in 2D but i cant figure out have to make it 3D. It is not important from
Finding points on a rectangle at a given angle
I’m trying to draw a gradient in a rectangle object, with a given angle (Theta), where the ends of the gradient are touching the perimeter of the rectangle. I thought that using tangent would work, but I’m having trouble getting the kinks out. Is there an easy algorithm that I am just missing? End Result So, this is going to
What’s the best way to calculate a 3D (or n-D) centroid?
As part of a project at work I have to calculate the centroid of a set of points in 3D space. Right now I’m doing it in a way that seems simple but naive — by taking the average of each set of points, as in: where x, y and z are arrays of floating-point numbers. I seem to recall