Polyrat.evaluate - Code Metrics - Inspection of "Upgrade framework" - acerix/cnum - Measure and Improve Code Quality continuously with Scrutinizer

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by Dylan

created 2022-05-08 05:33 UTC

Polyrat.evaluate D

↳ Parent: Polyrat

Complexity

Conditions

Size

Total Lines	19
Code Lines	13

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	11
CRAP Score	13

Importance

Changes

Metric	Value
cc	13
eloc	13
dl	0
loc	19
ccs	11
cts	11
cp	1
crap	13
rs	4.2
c	0
b	0
f	0

How to fix Complexity

import { Rat } from './Rat'
import Symbolizer from './Symbolizer'

export interface Coefficents {
  [Key: string]: bigint
}

/**
 * @class Rational polynumber
 * @name Polyrat
 */
export class Polyrat {
  // coefficent values are indexed with their the exponents in each dimension, comma-separated, as the key
  coefficents: Coefficents = {}

  // the dimension is how many params there are, defined by the length of the exponent keys
  dimension = 0

  // unique symbols for each dimension
  latinSymbols = ''
  greekSymbols = ''

  /**
   * Initialize a rational polynumber.
   */
  constructor(coefficents?: Coefficents) {
    if (coefficents) {
      this.coefficents = coefficents
    }
    if (Object.keys(this.coefficents).length) {
      const ck = Object.keys(this.coefficents)
      this.dimension = ck[0] ? ck[0].split(',').length : 0
    }
    const lsg = new Symbolizer('xyzw').generator()
    for (let i = 0; i < this.dimension; i++) {
      this.latinSymbols += lsg.next().value
    }
    const gsg = new Symbolizer().generator()
    for (let i = 0; i < this.dimension; i++) {
      this.greekSymbols += gsg.next().value
    }
  }

  /**
   * Evaluate the result given the parameters for each dimension.
   */
  evaluate(parameters: Rat[]): Rat {
    let result: Rat = new Rat()
    for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
      let value: Rat = new Rat(coefficent)
      const dimensions = exponents.split(',')
      for (let i = 0; i < dimensions.length; i++) {
        if (i in parameters) {
          const base = parameters[i] ?? new Rat(1)
          const dimension = parseInt(dimensions[i] ?? '1', 10)
          value = value.mul(base.pow(new Rat(dimension)))
        }
      }
      result = result.add(value)
    }
    return result
  }

  /**s
   * The text representation.
   */
  toString(): string {
    return `${this.constructor.name}(${this.toJSON()})`
  }

  /**
   * The JSON representation.
   */
  toJSON(): string {
    // return JSON.stringify(this.coefficents)
    const r = []
    for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
      r.push(`"${exponents}":"${coefficent.toString()}"`)
    }
    return `{${r.join(',')}}`
  }

  /**
   * The formula in the human way with exponents as HTML sups.
   */
  toHTMLFormula(): string {
    const r: string[] = []
    for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
      const t: string[] = []
      const f = coefficent.toString()
      if (f !== '1') t.push(f)
      const dimensions = exponents.split(',')
      for (let i = 0; i < dimensions.length; i++) {
        if (dimensions[i] !== '0') {
          if (dimensions[i] === '1') {
            t.push(this.latinSymbols[i] ?? '?')
          } else {
            t.push(
              `${this.latinSymbols[i] ?? '?'}<sup>${parseInt(
                dimensions[i] ?? '?',
                10,
              )}</sup>`,
            )
          }
        }
      }
      if (t) r.push(t.join(''))
    }
    if (r.length === 0) return '0'
    return r.join(' + ')
  }

  /**
   * The formula in the standard alpha form as HTML.
   */
  toStandardAlphaFormHTML(): string {
    const rn: string[] = []
    const rd: string[] = []
    if (!Object.keys(this.coefficents).length) return '0'
    for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
      const tn: string[] = []
      const td: string[] = []
      const f = coefficent.toString()
      if (f !== '1') tn.push(f)
      const dimensions = exponents.split(',')
      for (let i = 0; i < dimensions.length; i++) {
        if (dimensions[i] !== '0') {
          if (dimensions[i] === '1') {
            tn.push(this.greekSymbols[i] ?? '?')
          } else {
            const exponent = parseInt(dimensions[i] ?? '0', 10)
            if (exponent > 0) {
              tn.push(`${this.greekSymbols[i] ?? '?'}<sup>${exponent}</sup>`)
            } else {
              if (exponent === -1) {
                td.push(this.greekSymbols[i] ?? '?')
              } else {
                td.push(`${this.greekSymbols[i] ?? '?'}<sup>${-exponent}</sup>`)
              }
            }
          }
        }
      }
      if (tn.length) rn.push(tn.join(''))
      if (td.length) rd.push(td.join(''))
    }
    if (rn.length === 0) rn.push('1')
    if (rd.length === 0) return rn.join(' + ')
    return rn.join(' + ') + ' / ' + rd.join(' + ')
  }

  /**
   * The "calc" code for evaluating the value.
   */
  toCalcFormula(): string {
    const r: string[] = []
    for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
      const t: string[] = []
      const f = coefficent.toString()
      if (f !== '1') t.push(f)
      const dimensions = exponents.split(',')
      for (let i = 0; i < dimensions.length; i++) {
        if (dimensions[i] !== '0') {
          if (dimensions[i] === '1') {
            t.push(this.latinSymbols[i] ?? '?')
          } else {
            t.push(
              `${this.latinSymbols[i] ?? '?'}^${parseInt(
                dimensions[i] ?? '0',
                10,
              )}`,
            )
          }
        }
      }
      if (t.length) r.push(t.join('*'))
    }
    if (r.length === 0) return '0'
    return r.join(' + ')
  }

  /**
   * The GLSL code for evaluating the value.
   */
  toGLSLFormula(): string {
    const r: string[] = []
    for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
      const t: string[] = []
      const f = coefficent.toString()
      if (f !== '1') t.push(f + '.0')
      const dimensions = exponents.split(',')
      for (let i = 0; i < dimensions.length; i++) {
        if (dimensions[i] !== '0') {
          let exponent = parseInt(dimensions[i] ?? '0', 10)
          const recipricol = exponent < 0
          // pow doesn't work for < 0
          // t.push(`pow(${this.symbols[i]},${exponent}.0)`)
          // muliply instead
          if (recipricol) {
            t.push('1.0/(1.0')
            exponent = -exponent
          }
          t.push(
            (this.latinSymbols[i] ?? '?').repeat(exponent).split('').join('*'),
          )
          if (recipricol) {
            t.push('1.0)')
          }
        }
      }
      if (t.length) r.push(t.join('*'))
    }
    if (r.length === 0) return '0.0'
    return r.join('+')
  }

  /**
   * Clone this.
   */
  clone(): Polyrat {
    return new Polyrat(this.coefficents)
  }
}

/**
 * Parse the string and return it as a Polyrat.
 */
export const stringToPolyrat = (s: string): Polyrat => {
  return new Polyrat(JSON.parse(s) as Coefficents)
}

export default Polyrat


1	3	import { Rat } from './Rat'
2	3	import Symbolizer from './Symbolizer'
3
4		export interface Coefficents {
5		[Key: string]: bigint
6		}
7
8		/**
9		* @class Rational polynumber
10		* @name Polyrat
11		*/
12	3	export class Polyrat {
13		// coefficent values are indexed with their the exponents in each dimension, comma-separated, as the key
14	21	coefficents: Coefficents = {}
15
16		// the dimension is how many params there are, defined by the length of the exponent keys
17	21	dimension = 0
18
19		// unique symbols for each dimension
20	21	latinSymbols = ''
21	21	greekSymbols = ''
22
23		/**
24		* Initialize a rational polynumber.
25		*/
26		constructor(coefficents?: Coefficents) {
27	21	if (coefficents) {
28	19	this.coefficents = coefficents
29		}
30	21	if (Object.keys(this.coefficents).length) {
31	14	const ck = Object.keys(this.coefficents)
32	14	this.dimension = ck[0] ? ck[0].split(',').length : 0
33		}
34	21	const lsg = new Symbolizer('xyzw').generator()
35	21	for (let i = 0; i < this.dimension; i++) {
36	21	this.latinSymbols += lsg.next().value
37		}
38	21	const gsg = new Symbolizer().generator()
39	21	for (let i = 0; i < this.dimension; i++) {
40	21	this.greekSymbols += gsg.next().value
41		}
42		}
43
44		/**
45		* Evaluate the result given the parameters for each dimension.
46		*/
47		evaluate(parameters: Rat[]): Rat {
48	1	let result: Rat = new Rat()
49	1	for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
50	1	let value: Rat = new Rat(coefficent)
51	1	const dimensions = exponents.split(',')
52	1	for (let i = 0; i < dimensions.length; i++) {
53	1	if (i in parameters) {
54	2	const base = parameters[i] ?? new Rat(1)
55	2	const dimension = parseInt(dimensions[i] ?? '1', 10)
56	1	value = value.mul(base.pow(new Rat(dimension)))
57		}
58		}
59	1	result = result.add(value)
60		}
61	1	return result
62		}
63
64		/**s
65		* The text representation.
66		*/
67		toString(): string {
68	2	return `${this.constructor.name}(${this.toJSON()})`
69		}
70
71		/**
72		* The JSON representation.
73		*/
74		toJSON(): string {
75		// return JSON.stringify(this.coefficents)
76	4	const r = []
77	4	for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
78	12	r.push(`"${exponents}":"${coefficent.toString()}"`)
79		}
80	4	return `{${r.join(',')}}`
81		}
82
83		/**
84		* The formula in the human way with exponents as HTML sups.
85		*/
86		toHTMLFormula(): string {
87	5	const r: string[] = []
88	5	for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
89	12	const t: string[] = []
90	12	const f = coefficent.toString()
91	12	if (f !== '1') t.push(f)
92	12	const dimensions = exponents.split(',')
93	12	for (let i = 0; i < dimensions.length; i++) {
94	24	if (dimensions[i] !== '0') {
95	12	if (dimensions[i] === '1') {
96	3	t.push(this.latinSymbols[i] ?? '?')
97		} else {
98	9	t.push(
99		`${this.latinSymbols[i] ?? '?'}<sup>${parseInt(
100		dimensions[i] ?? '?',
101		10,
102		)}</sup>`,
103		)
104		}
105		}
106		}
107	12	if (t) r.push(t.join(''))
108		}
109	5	if (r.length === 0) return '0'
110	4	return r.join(' + ')
111		}
112
113		/**
114		* The formula in the standard alpha form as HTML.
115		*/
116		toStandardAlphaFormHTML(): string {
117	8	const rn: string[] = []
118	8	const rd: string[] = []
119	8	if (!Object.keys(this.coefficents).length) return '0'
120	7	for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
121	14	const tn: string[] = []
122	14	const td: string[] = []
123	14	const f = coefficent.toString()
124	14	if (f !== '1') tn.push(f)
125	14	const dimensions = exponents.split(',')
126	14	for (let i = 0; i < dimensions.length; i++) {
127	25	if (dimensions[i] !== '0') {
128	14	if (dimensions[i] === '1') {
129	4	tn.push(this.greekSymbols[i] ?? '?')
130		} else {
131	10	const exponent = parseInt(dimensions[i] ?? '0', 10)
132	10	if (exponent > 0) {
133	7	tn.push(`${this.greekSymbols[i] ?? '?'}<sup>${exponent}</sup>`)
134		} else {
135	3	if (exponent === -1) {
136	2	td.push(this.greekSymbols[i] ?? '?')
137		} else {
138	2	td.push(`${this.greekSymbols[i] ?? '?'}<sup>${-exponent}</sup>`)
139		}
140		}
141		}
142		}
143		}
144	14	if (tn.length) rn.push(tn.join(''))
145	14	if (td.length) rd.push(td.join(''))
146		}
147	7	if (rn.length === 0) rn.push('1')
148	7	if (rd.length === 0) return rn.join(' + ')
149	3	return rn.join(' + ') + ' / ' + rd.join(' + ')
150		}
151
152		/**
153		* The "calc" code for evaluating the value.
154		*/
155		toCalcFormula(): string {
156	5	const r: string[] = []
157	5	for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
158	11	const t: string[] = []
159	11	const f = coefficent.toString()
160	11	if (f !== '1') t.push(f)
161	11	const dimensions = exponents.split(',')
162	11	for (let i = 0; i < dimensions.length; i++) {
163	20	if (dimensions[i] !== '0') {
164	11	if (dimensions[i] === '1') {
165	4	t.push(this.latinSymbols[i] ?? '?')
166		} else {
167	7	t.push(
168		`${this.latinSymbols[i] ?? '?'}^${parseInt(
169		dimensions[i] ?? '0',
170		10,
171		)}`,
172		)
173		}
174		}
175		}
176	11	if (t.length) r.push(t.join('*'))
177		}
178	5	if (r.length === 0) return '0'
179	4	return r.join(' + ')
180		}
181
182		/**
183		* The GLSL code for evaluating the value.
184		*/
185		toGLSLFormula(): string {
186	3	const r: string[] = []
187	3	for (const [exponents, coefficent] of Object.entries(this.coefficents)) {
188	7	const t: string[] = []
189	7	const f = coefficent.toString()
190	7	if (f !== '1') t.push(f + '.0')
191	7	const dimensions = exponents.split(',')
192	7	for (let i = 0; i < dimensions.length; i++) {
193	14	if (dimensions[i] !== '0') {
194	8	let exponent = parseInt(dimensions[i] ?? '0', 10)
195	8	const recipricol = exponent < 0
196		// pow doesn't work for < 0
197		// t.push(`pow(${this.symbols[i]},${exponent}.0)`)
198		// muliply instead
199	8	if (recipricol) {
200	1	t.push('1.0/(1.0')
201	1	exponent = -exponent
202		}
203	8	t.push(
204		(this.latinSymbols[i] ?? '?').repeat(exponent).split('').join('*'),
205		)
206	8	if (recipricol) {
207	1	t.push('1.0)')
208		}
209		}
210		}
211	7	if (t.length) r.push(t.join('*'))
212		}
213	3	if (r.length === 0) return '0.0'
214	2	return r.join('+')
215		}
216
217		/**
218		* Clone this.
219		*/
220		clone(): Polyrat {
221	1	return new Polyrat(this.coefficents)
222		}
223		}
224
225		/**
226		* Parse the string and return it as a Polyrat.
227		*/
228	3	export const stringToPolyrat = (s: string): Polyrat => {
229	1	return new Polyrat(JSON.parse(s) as Coefficents)
230		}
231
232		export default Polyrat
233

acerix / cnum

Push — main ( 83e137...64b099 )

Polyrat.evaluate D

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