{
  "_id": "6a1bfbfe1d7bb097a0a27fac",
  "Package": "conicfit",
  "Type": "Package",
  "Title": "Algorithms for Fitting Circles, Ellipses and Conics Based on the\nWork by Prof. Nikolai Chernov",
  "Version": "1.0.4",
  "Encoding": "UTF-8",
  "Authors@R": "c(person(given = \"Jose\", family = \"Gama\", role = c(\"aut\",\"cre\"),email = \"rxprtgama@gmail.com\"),\nperson(given = \"Nikolai\", family = \"Chernov\", role = c(\"aut\",\"cph\")))",
  "Description": "Geometric circle fitting with Levenberg-Marquardt (a, b,\nR), Levenberg-Marquardt reduced (a, b), Landau, Spath and\nChernov-Lesort. Algebraic circle fitting with Taubin, Kasa,\nPratt and Fitzgibbon-Pilu-Fisher. Geometric ellipse fitting\nwith ellipse LMG (geometric parameters) and conic LMA\n(algebraic parameters). Algebraic ellipse fitting with\nFitzgibbon-Pilu-Fisher and Taubin.",
  "License": "GPL (>= 3)",
  "Author": "Jose Gama [aut, cre], Nikolai Chernov [aut, cph]",
  "Maintainer": "Jose Gama <rxprtgama@gmail.com>",
  "Repository/R-Forge/Project": "conicfit",
  "Repository/R-Forge/Revision": "10",
  "Repository/R-Forge/DateTimeStamp": "2015-10-05 15:19:30",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-05-31 09:11:46 UTC",
    "User": "root"
  },
  "Repository": "https://cran.r-universe.dev",
  "Date/Publication": "2015-10-05 22:57:57 UTC",
  "RemoteUrl": "https://github.com/cran/conicfit",
  "RemoteRef": "HEAD",
  "RemoteSha": "1a9e395aed4cc0606ffbb921c9439cb8f16c78e5",
  "MD5sum": "d35eaa69cdb96d35cee25d41a94b1cc0",
  "_user": "cran",
  "_type": "src",
  "_file": "conicfit_1.0.4.tar.gz",
  "_fileid": "468e29e541cc565bb3c1d441be2faa90757249282bcdc057b5720d454942ef0a",
  "_filesize": 174285,
  "_sha256": "468e29e541cc565bb3c1d441be2faa90757249282bcdc057b5720d454942ef0a",
  "_created": "2026-05-31T09:11:46.000Z",
  "_published": "2026-05-31T09:14:38.803Z",
  "_distro": "noble",
  "_jobs": [
    {
      "job": 78714488544,
      "time": 105,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7315508239"
    },
    {
      "job": 78714488552,
      "time": 137,
      "config": "linux-release-x86_64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7315511831"
    },
    {
      "job": 78714338274,
      "time": 157,
      "config": "source",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7315495229"
    },
    {
      "job": 78714488535,
      "time": 93,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7315506887"
    }
  ],
  "_buildurl": "https://github.com/r-universe/cran/actions/runs/26708454518",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/cran/conicfit",
  "_commit": {
    "id": "1a9e395aed4cc0606ffbb921c9439cb8f16c78e5",
    "author": "Jose Gama <rxprtgama@gmail.com>",
    "committer": "Gabor Csardi <csardi.gabor@gmail.com>",
    "message": "version 1.0.4\n",
    "time": 1444085877
  },
  "_maintainer": {
    "name": "Jose Gama",
    "email": "rxprtgama@gmail.com"
  },
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 2.7.0",
      "role": "Depends"
    },
    {
      "package": "pracma",
      "role": "Depends"
    },
    {
      "package": "geigen",
      "role": "Depends"
    }
  ],
  "_owner": "cran",
  "_selfowned": false,
  "_usedby": 7,
  "_updates": [],
  "_tags": [],
  "_stars": 0,
  "_userbio": {
    "uuid": 6899542,
    "type": "organization",
    "name": "cran",
    "description": "Unofficial read-only mirror of all CRAN R packages"
  },
  "_downloads": {
    "count": 551,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/conicfit"
  },
  "_searchresults": 133,
  "_rbuild": "4.6.0",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/conicfit.html",
    "extra/contents.json",
    "manual.pdf"
  ],
  "_realowner": "cran",
  "_cranurl": false,
  "_releases": [
    {
      "version": "1.0.0",
      "date": "2014-03-07"
    },
    {
      "version": "1.0.4",
      "date": "2015-10-05"
    }
  ],
  "_exports": [
    "AtoG",
    "calculateCircle",
    "calculateEllipse",
    "CircleFitByKasa",
    "CircleFitByLandau",
    "CircleFitByPratt",
    "CircleFitBySpath",
    "CircleFitByTaubin",
    "conic2parametric",
    "CurrentIteration",
    "CurrentIterationReduced",
    "ellipse.l",
    "EllipseDirectFit",
    "ellipseEccentricity",
    "EllipseFitByTaubin",
    "ellipseFocus",
    "ellipseRa",
    "ellipseRp",
    "ellipticity",
    "estimateInitialGuessCircle",
    "fit.conicLMA",
    "fit.ellipseLMG",
    "fit.ellipseLMG.H",
    "fitbookstein",
    "fitggk",
    "GtoA",
    "JmatrixLMA",
    "JmatrixLMG",
    "LMcircleFit",
    "LMreducedCircleFit",
    "Residuals.ellipse",
    "Residuals.hyperbola",
    "Residuals.parabola",
    "ResidualsG"
  ],
  "_help": [
    {
      "page": "AtoG",
      "title": "Conversion of algebraic parameters to geometric parameters",
      "topics": [
        "AtoG"
      ]
    },
    {
      "page": "calculateCircle",
      "title": "Generate points from a circle",
      "topics": [
        "calculateCircle"
      ]
    },
    {
      "page": "calculateEllipse",
      "title": "Generate points from a ellipse",
      "topics": [
        "calculateEllipse"
      ]
    },
    {
      "page": "CircleFitByKasa",
      "title": "Algebraic circle fit (Kasa method)",
      "topics": [
        "CircleFitByKasa"
      ]
    },
    {
      "page": "CircleFitByLandau",
      "title": "Geometric circle fit (minimizing orthogonal distances) by Landau algorithm",
      "topics": [
        "CircleFitByLandau"
      ]
    },
    {
      "page": "CircleFitByPratt",
      "title": "Algebraic circle fit by Pratt",
      "topics": [
        "CircleFitByPratt"
      ]
    },
    {
      "page": "CircleFitBySpath",
      "title": "Geometric circle fit by Spath",
      "topics": [
        "CircleFitBySpath"
      ]
    },
    {
      "page": "CircleFitByTaubin",
      "title": "Algebraic circle fit (Taubin method)",
      "topics": [
        "CircleFitByTaubin"
      ]
    },
    {
      "page": "EllipseDirectFit",
      "title": "Algebraic ellipse fit method by Fitzgibbon-Pilu-Fisher",
      "topics": [
        "EllipseDirectFit"
      ]
    },
    {
      "page": "EllipseFitByTaubin",
      "title": "Algebraic ellipse fit by Taubin",
      "topics": [
        "EllipseFitByTaubin"
      ]
    },
    {
      "page": "ellipticity",
      "title": "Formulas for the ellipse",
      "topics": [
        "ellipse.l",
        "ellipseEccentricity",
        "ellipseFocus",
        "ellipseRa",
        "ellipseRp",
        "ellipticity"
      ]
    },
    {
      "page": "estimateInitialGuessCircle",
      "title": "Estimate Initial Guess Circle values",
      "topics": [
        "estimateInitialGuessCircle"
      ]
    },
    {
      "page": "fit.conicLMA",
      "title": "Fitting a conic to a given set of points (Implicit method)",
      "topics": [
        "fit.conicLMA"
      ]
    },
    {
      "page": "fit.ellipseLMG",
      "title": "Fitting an ellipse using Implicit method",
      "topics": [
        "fit.ellipseLMG",
        "fit.ellipseLMG.H"
      ]
    },
    {
      "page": "fitbookstein",
      "title": "Linear ellipse fit using bookstein constraint",
      "topics": [
        "conic2parametric",
        "fitbookstein",
        "fitggk"
      ]
    },
    {
      "page": "GtoA",
      "title": "Conversion of geometric parameters to algebraic parameters",
      "topics": [
        "GtoA"
      ]
    },
    {
      "page": "JmatrixLMA",
      "title": "Compute the Jacobian matrix using algebraic parameters",
      "topics": [
        "JmatrixLMA"
      ]
    },
    {
      "page": "JmatrixLMG",
      "title": "Compute the Jacobian matrix using geometric parameters",
      "topics": [
        "JmatrixLMG"
      ]
    },
    {
      "page": "LMcircleFit",
      "title": "Geometric circle fit (minimizing orthogonal distances) based on the Levenberg-Marquardt method",
      "topics": [
        "LMcircleFit"
      ]
    },
    {
      "page": "LMreducedCircleFit",
      "title": "Geometric circle fit (minimizing orthogonal distances) based on the Levenberg-Marquardt method",
      "topics": [
        "LMreducedCircleFit"
      ]
    },
    {
      "page": "Residuals.ellipse",
      "title": "Projecting a given set of points onto an ellipse",
      "topics": [
        "Residuals.ellipse"
      ]
    },
    {
      "page": "Residuals.hyperbola",
      "title": "Projecting a given set of points onto an hyperbola",
      "topics": [
        "Residuals.hyperbola"
      ]
    },
    {
      "page": "Residuals.parabola",
      "title": "Projecting a given set of points onto an parabola",
      "topics": [
        "Residuals.parabola"
      ]
    },
    {
      "page": "ResidualsG",
      "title": "Projecting a given set of points onto an ellipse",
      "topics": [
        "ResidualsG"
      ]
    }
  ],
  "_rundeps": [
    "geigen",
    "pracma"
  ],
  "_score": 3.4460709357010053,
  "_indexed": true,
  "_nocasepkg": "conicfit",
  "_universes": [
    "cran"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.0.4",
      "date": "2026-05-31T09:13:36.000Z",
      "distro": "noble",
      "commit": "1a9e395aed4cc0606ffbb921c9439cb8f16c78e5",
      "fileid": "12e312a5070171bd9c605fc5f41cad61d8732843988d456cbe029f02b9ba3cb3",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/26708454518"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "1.0.4",
      "date": "2026-05-31T09:14:06.000Z",
      "distro": "noble",
      "commit": "1a9e395aed4cc0606ffbb921c9439cb8f16c78e5",
      "fileid": "c7417fdc14b45034ed6c08a42d0138c813d87fcfe80c1386cc1e14ebd4bd9083",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/26708454518"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.0.4",
      "date": "2026-05-31T09:13:38.000Z",
      "commit": "1a9e395aed4cc0606ffbb921c9439cb8f16c78e5",
      "fileid": "a7d8c9d9b8ef3ad8d053afa18ecaae013bdefa159efcbc3599a88d6e0ae40901",
      "status": "success",
      "buildurl": "https://github.com/r-universe/cran/actions/runs/26708454518"
    }
  ]
}