Dec 21, 2017 · How about the following approach: You start with a vertex at the centroid of your outline and build a (coarse) mesh. Then as long as you want to continue, you put a centroid at each of the triangles from the previous iteration and split it into three smaller ones.

Dec 21, 2017 · Problem: Find the 2d outline of the projected arbitrarily rotated mesh on an arbitrary plane. The projection is easy. The challenge lies in finding the "hull" of the projected triangle edges in the plane. I need some help with input/pointers on researching this algorithm.

This paper discusses the Efficient generation of simple polygons for characterizing the shape of a set of points in the plane and provides the algorithm. There's also a Java applet utilizing the same algorithm here.

Convex Hull (2D) Naïve Algorithm++ (𝑛2ℎ)*: Grow the hull by starting at a hull vertex and searching for the next edge on the hull by trying all possible edges and testing if they are on the hull. Note: By explicitly forcing the output to be sorted, we end up with a faster algorithm. *ℎis the number of points on the hull.

TQMesh is a simple C++ library/application designed to streamline the process of generating two-dimensional meshes comprising triangles and quadrilaterals. Whether you're involved in Computational Fluid Dynamics (CFD), Finite Element Methods (FEM), or other fields, this tool simplifies the creation of grids for various applications.

Marching Squares is a fundamental algorithm for extracting isocontours from 2D samples. Here's the idea: for every cell, we examine the corners, which match one of sixteen cases: Each case creates between zero and two edges.

-Filling Curve (SFC) for an arbitrary distribution of points in 2D. We use the SFC to partition 2D meshes, both structured and unstructured, and compare the quality of partitions. with traditional SFCs and a multilevel partitioning scheme (Metis). The algorithm is independent of the.

The marching squares algorithm is relatively simple, and it has a few unique applications, such as destructible terrain in video games and generating an outline of an image. It operates on a 2D grid whose cells' corners contain scalar values.

Nov 10, 2018 · Signed distance fields allow for cheaper raytracing, smoothly letting different shapes flow into each other and saving lower resolution textures for higher quality images. We’re going to start by generating signed distance fields with functions in 2 dimensions, but later continue by generating and using them in 3d.

Sep 14, 2018 · I found some code online from Christian Careaga that does a great job of runing the A* algorithm over a grid of data, from a starting point to a goal point, finding it's way around 'walls' and providing you the final list of steps for the shortest route. So …