Java tessellation or triangulation "opengl es" or android angle area constraints. Nroets/OpenGlEsPolygon. COMPUTING CONSTRAINED DELAUNAY TRIANGULATIONS IN THE PLANE. Generating the Delaunay Triangulation To generate the Delaunay triangulation, we chose to implement a "divide and conquer" algorithm presented by Guibas and Stolfi , in: Guibas, L. and Stolfi, J., "Primitives for the Manipulation of General Subdivisions and the Computation of Voronoi Diagrams", ACM Transactions on Graphics, Vol.4, No.2, April 1985, pages 74-123.
The divide and conquer algorithm only computes the Delaunay triangulation for the convex hull of the point set. The first step is to put all of the points into order of increasing x-coordinates (when two points have the same x-coordinate, their order is determined by their y-coordinates). This set of 10 points has been orderedOnce the points are ordered, the ordered set is successively divided into halves until we are left with subsets containing no more than three points. These subsets may be instantly triangulated as a segment in the case of two points and a triangle in the case of three points. ConformingDelaunayTriangulator (JTS Topology Suite version 1.12)
Java.lang.Object com.vividsolutions.jts.triangulate.ConformingDelaunayTriangulator public class ConformingDelaunayTriangulatorextends java.lang.Object.
Computational Geometry Code. This page lists "small" pieces of geometric software available on the Internet.
Most of the software is available free of charge. Unless otherwise specified, C or C++ source code is available for all programs. Software libraries and collections and programs that can be run interactively over the web are listed on separate web pages. Caveat Surfor! I can't make any claims about the usefulness or quality of the programs listed here. The programs on this page are divided into several categories, some of which are divided into further sub-categories. Each category also includes links to relevant pages in Nina Amenta's comprehensive Directory of Computational Geometry Software, which I strongly encourage you to visit! [hal-00329503, version 1] Efficient Constrained Delaunay Triangulation implementation in Java for spatial hydrological analysis. Devs/jdelaunay – OrbisGIS. Poly2tri - A 2D constrained Delaunay triangulation library. Jmescher - An interactive constrained Delaunay triangulation library implemented in Java.
Cs140 Assignment 2. My primary inspiration for this project is Processing Images and Video for An Impressionist Effect.
In that paper Peter Litwinowicz explians how to combine a particle system and a Delaunay triangulator to create a visually consistent video segments in which every frame has a hand painted look. Particles are used to keep track of brush stroke positions, while a quality controlled Delaunay triangulation makes sure that those particles never became to concentrated or diffuse. Here are a couple of cool pictures showing before and after stills from Litwinowicz's animations: I particularly like the swirly patterns that come out in the brush strokes on the mouse pad; they remind me of one of my favorite paintings - This brings us to the dangerous idea at the foundation of this project. I want to use Litwinowicz's visual consistency strategies to create animations that that also possess the sorts of turbulent brush stroke patterns that Van Gogh is known for. How it all works: "delaunay triangulation" java "angle constraint" OR "area constraint"
User and Reference Manual: Package Overview. Algebraic Foundations Michael Hemmer This package defines what algebra means for CGAL, in terms of concepts, classes and functions.
The main features are: (i) explicit concepts for interoperability of types (ii) separation between algebraic types (not necessarily embeddable into the reals), and number types (embeddable into the reals). Number Types Michael Hemmer, Susan Hert, Sylvain Pion, and Stefan Schirra This package provides number type concepts as well as number type classes and wrapper classes for third party number type libraries.
Modular Arithmetic Michael Hemmer and Sylvain Pion This package provides arithmetic over finite fields. Polynomial This package introduces a concept for univariate and multivariate polynomials in d variables. Algebraic Kernel Eric Berberich, Michael Hemmer, Michael Kerber, Sylvain Lazard, Luis Peñaranda, and Monique Teillaud Real solving of polynomials is a fundamental problem with a wide application range. Monotone and Sorted Matrix Search Michael Hoffmann. Triangle: A Two-Dimensional Quality Mesh Generator and Delaunay Triangulator.
Winner of the 2003 James Hardy Wilkinson Prize in Numerical Software.
Created at Carnegie Mellon University as part of the Quake project (tools for large-scale earthquake simulation). Supported by an NSERC 1967 Science and Engineering Scholarship and NSF Grant CMS-9318163. Mesh Generation and Grid Generation: Software. 2D Triangulations. Author Mariette Yvinec This chapter describes the two dimensional triangulations of CGAL.
Section Definitions recalls the main definitions about triangulations. Sections Representation discusses the way two-dimensional triangulations are represented in CGAL. Section Software Design presents the overall software design of the 2D triangulations package. A two dimensional triangulation can be roughly described as a set T of triangular facets such that: two facets either are disjoint or share a lower dimensional face (edge or vertex).the set of facets in T is connected for the adjacency relation.the domain U_T which is the union of facets in T has no singularity.
More precisely, a triangulation can be described as a simplicial complex. A simplicial complex is a set T of simplices such that. Computational Geometry in C (Second Edition) By Joseph O'Rourke Second Edition: printed 28 September 1998.
Purchasing information: Hardback: ISBN 0521640105, $69.95 (55.00 PST) Paperback: ISBN 0521649765, $29.95 (19.95 PST) Cambridge University Press servers: in Cambridge; in New York; Cambridge (NY) catalog entry (includes jacket text and chapter titles). [hal-00329503, v1] Efficient Constrained Delaunay Triangulation implementation in Java for spatial hydrological analysis. Ruppert (numericalMethods package API documentation) Triangulation of Simple Polygons. Opengl triangulation polygon.