The DTFE public software: The Delaunay Tessellation Field Estimator code

Abstract

We present the DTFE public software, a code for reconstructing fields from a discrete set of samples/measurements using the maximum of information contained in the point distribution. The code is written in C++ using the CGAL library and is parallelized using OpenMP. The software was designed for the analysis of cosmological data but can be used in other fields where one must interpolate quantities given at a discrete point set. The software comes with a wide suite of options to facilitate the analysis of 2- and 3-dimensional data and of both numerical simulations and galaxy redshift surveys. For comparison purposes, the code also implements the TSC and SPH grid interpolation methods. The code comes with an extensive user guide detailing the program options, examples and the inner workings of the code. The DTFE public software and further information can be found at http://www.astro.rug.nl/~voronoi/DTFE/dtfe.html .

6 pages, 3 figures

Cited by in corpus (48)

• Evolution of the cosmic web
• Tracing the cosmic web
• NEXUS: Tracing the Cosmic Web Connection
• Galaxy evolution in the metric of the Cosmic Web
• Modified Gravity N-body Code Comparison Project
• The abundance of voids and the excursion set formalism
• The nonlinear matter and velocity power spectra in f(R) gravity
• Redshift space distortions in f(R) gravity
• The Santiago-Harvard-Edinburgh-Durham void comparison I: SHEDding light on chameleon gravity tests
• The Topology of the Cosmic Web in Terms of Persistent Betti Numbers
• The Properties of Cosmic Velocity Fields
• The effect of baryons on redshift space distortions and cosmic density and velocity fields in the EAGLE simulation
• Are peculiar velocity surveys competitive as a cosmological probe?
• The Cosmic Ballet II: Spin alignment of galaxies and haloes with large-scale filaments in the EAGLE simulation
• The imprint of neutrinos on clustering in redshift-space
• Simulating the quartic Galileon gravity model on adaptively refined meshes
• Testing the theory of gravity with DESI: estimators, predictions and simulation requirements
• The Santiago-Harvard-Edinburgh-Durham void comparison II: unveiling the Vainshtein screening using weak lensing
• Topology and Geometry of Gaussian random fields I: on Betti Numbers, Euler characteristic and Minkowski functionals
• Mapping and characterisation of cosmic filaments in galaxy cluster outskirts: strategies and forecasts for observations from simulations
• Using Voids to Unscreen Modified Gravity
• The Generation of Vorticity in Cosmological N-body Simulations
• Redshift inference from the combination of galaxy colors and clustering in a hierarchical Bayesian model $-$ Application to realistic $N$-body simulations
• The view from the boundary: a new void stacking method
• Halo velocity profiles in screened modified gravity theories
• Halo nonlinear reconstruction
• Large-Scale Velocity Dispersion and the Cosmic Web
• The velocity field in MOND cosmology
• SDSS-IV MaNGA: Signatures of halo assembly in kinematically misaligned galaxies
• Reconstructing the baryon acoustic oscillations using biased tracers
• Not a Copernican observer: biased peculiar velocity statistics in the local Universe
• f(R) gravity on non-linear scales: The post-Friedmann expansion and the vector potential
• Bayesian cosmic density field inference from redshift space dark matter maps
• The Effect of Thermal Velocities on Structure Formation in N-body Simulations of Warm Dark Matter
• The matter density PDF for modified gravity and dark energy with Large Deviations Theory
• Topology and geometry of the dark matter web: a multistream view
• Iterative removal of redshift space distortions from galaxy clustering
• GRAMSES: a new route to general relativistic $N$-body simulations in cosmology. Part II. Initial conditions
• Optimal void finders in weak lensing maps
• Vector modes in $\Lambda$CDM: the gravitomagnetic potential in dark matter haloes from relativistic $N$-body simulations
• Screening maps of the local Universe I -- Methodology
• Cosmological Signatures of Dark Sector Physics: The Evolution of Haloes and Spin Alignment
• Proca-stinated Cosmology II: Matter, Halo, and Lensing Statistics in the vector Galileon
• Less is more: How cosmic voids can shed light on dark energy
• Baryon Acoustic Oscillation detections from the clustering of massive halos and different density region tracers in TianNu simulation
• PSI: Constructing ad-hoc Simplices to Interpolate High-Dimensional Unstructured Data
• Detecting and analysing the topology of the cosmic web with spatial clustering algorithms I: Methods
• Cosmic curl -- Features and convergence of the vorticity power spectrum in $N$-body simulations