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src/Matrix.js

Summary

Maintainability
F
4 days
Test Coverage

File Matrix.js has 531 lines of code (exceeds 250 allowed). Consider refactoring.
Open

/* eslint-disable no-undef */
/*!
  2D Transformation Matrix v2.7.5
  (c) Epistemex.com 2014-2018
  License: MIT
Severity: Major
Found in src/Matrix.js - About 1 day to fix

    prototype has 56 functions (exceeds 20 allowed). Consider refactoring.
    Open

    Matrix.prototype = {
  _getPX: function () {
    var lst = ['t', 'oT', 'msT', 'mozT', 'webkitT', 'khtmlT'],
      i = 0,
      p,
    Severity: Major
    Found in src/Matrix.js - About 1 day to fix

      Function fromTriangles has 59 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

      Matrix.fromTriangles = function (t1, t2, context) {
  var m1 = new Matrix(),
    m2 = new Matrix(context),
    r1,
    r2,
      Severity: Major
      Found in src/Matrix.js - About 2 hrs to fix

        Function decompose has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.
        Open

          decompose: function (useLU) {
    var me = this,
      a = me.a,
      b = me.b,
      c = me.c,
        Severity: Minor
        Found in src/Matrix.js - About 2 hrs to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Function decompose has 49 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

          decompose: function (useLU) {
    var me = this,
      a = me.a,
      b = me.b,
      c = me.c,
        Severity: Minor
        Found in src/Matrix.js - About 1 hr to fix

          Function from has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
          Open

          Matrix.from = function (a, b, c, d, e, f, context, dom) {
  var m = new Matrix(context, dom),
    scale,
    dist,
    q;
          Severity: Minor
          Found in src/Matrix.js - About 1 hr to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Function from has 8 arguments (exceeds 4 allowed). Consider refactoring.
          Open

          Matrix.from = function (a, b, c, d, e, f, context, dom) {
          Severity: Major
          Found in src/Matrix.js - About 1 hr to fix

            Function transform has 6 arguments (exceeds 4 allowed). Consider refactoring.
            Open

              transform: function (a2, b2, c2, d2, e2, f2) {
            Severity: Minor
            Found in src/Matrix.js - About 45 mins to fix

              Function setTransform has 6 arguments (exceeds 4 allowed). Consider refactoring.
              Open

                setTransform: function (a, b, c, d, e, f) {
              Severity: Minor
              Found in src/Matrix.js - About 45 mins to fix

                Function applyToArray has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
                Open

                  applyToArray: function (points) {
    var i = 0,
      p,
      l,
      mxPoints = [];
                Severity: Minor
                Found in src/Matrix.js - About 25 mins to fix

                Cognitive Complexity

                Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                A method's cognitive complexity is based on a few simple rules:

                • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                • Code is considered more complex for each "break in the linear flow of the code"
                • Code is considered more complex when "flow breaking structures are nested"

                Further reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                    r1 = [
      t1.px - t1.rx,
      t1.py - t1.ry,
      t1.qx - t1.rx,
      t1.qy - t1.ry,
                Severity: Major
                Found in src/Matrix.js and 1 other location - About 1 hr to fix
                src/Matrix.js on lines 126..133

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 70.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                    r2 = [
      t2.px - t2.rx,
      t2.py - t2.ry,
      t2.qx - t2.rx,
      t2.qy - t2.ry,
                Severity: Major
                Found in src/Matrix.js and 1 other location - About 1 hr to fix
                src/Matrix.js on lines 118..125

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 70.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                      r2 = [
        t2[0].x - rx2,
        t2[0].y - ry2,
        t2[1].x - rx2,
        t2[1].y - ry2,
                Severity: Major
                Found in src/Matrix.js and 1 other location - About 1 hr to fix
                src/Matrix.js on lines 100..107

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 62.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                      r1 = [
        t1[0].x - rx1,
        t1[0].y - ry1,
        t1[1].x - rx1,
        t1[1].y - ry1,
                Severity: Major
                Found in src/Matrix.js and 1 other location - About 1 hr to fix
                src/Matrix.js on lines 108..115

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 62.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                      r1 = [t1[0] - rx1, t1[1] - ry1, t1[2] - rx1, t1[3] - ry1, rx1, ry1];
                Severity: Minor
                Found in src/Matrix.js and 1 other location - About 35 mins to fix
                src/Matrix.js on lines 94..94

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 46.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Similar blocks of code found in 2 locations. Consider refactoring.
                Open

                      r2 = [t2[0] - rx2, t2[1] - ry2, t2[2] - rx2, t2[3] - ry2, rx2, ry2];
                Severity: Minor
                Found in src/Matrix.js and 1 other location - About 35 mins to fix
                src/Matrix.js on lines 93..93

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 46.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

                Further Reading

                Parsing error: Invalid ecmaVersion.
                Open

                /* eslint-disable no-undef */
                Severity: Minor
                Found in src/Matrix.js by eslint

                For more information visit Source: http://eslint.org/docs/rules/

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