Top "2d" questions

How do I reverse-project 2D points into 3D?

I have 4 2D points in screen-space, and I need to reverse-project them back into 3D space. I know that each …

3d geometry 2d photogrammetry reverseprojection

How to convert a Numpy 2D array with object dtype to a regular 2D array of floats

As part of broader program I am working on, I ended up with object arrays with strings, 3D coordinates and …

python arrays object numpy 2d

Sending and receiving 2D array over MPI

The issue I am trying to resolve is the following: The C++ serial code I have computes across a large 2…

c++ multidimensional-array 2d mpi

Flipping a 2D Sprite Animation in Unity 2D

I've got a quick question regarding 2D Sprite animations that I haven't been able to find specifically answered anywhere: I …

c# animation unity3d 2d sprite

How to pass 2-D vector to a function in C++?

If it is passed, is it passed by value or by reference? void printMatrix(vector<vector<int>&…

c++ vector 2d

Changing the Coordinate System in LibGDX (Java)

LibGDX has a coordinate system where (0,0) is at the bottom-left. (like this image: http://i.stack.imgur.com/jVrJ0.png) …

java 2d sprite coordinate-systems libgdx

How to test if a line segment intersects an axis-aligned rectange in 2D?

How to test if a line segment intersects an axis-aligned rectange in 2D? The segment is defined with its two …

graphics geometry 2d

How to get 1D column array and 1D row array from 2D array? (C# .NET)

i have double[,] Array;. Is it possible to get something like double[] ColumnArray0 = Array[0,].toArray() and double[] RowArray1 = Array[,1].toArray() …

c# .net arrays 2d rows

Android Speedometer (Needle Gauge)

Creating a simple app that calculates the speed your going and displays it in a speedometer graphic. I can do …

android animation 2d tween

Plotting a 2d Array with mplot3d

I have a 2D numpy array and I want to plot it in 3D. I heard about mplot3d but …

python arrays 2d mplot3d