zxing-js/library

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src/core/common/PerspectiveTransform.ts

Summary

Maintainability
C
1 day
Test Coverage
C
74%

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

    public static squareToQuadrilateral(
        x0: number/*float*/, y0: number/*float*/,
        x1: number/*float*/, y1: number/*float*/,
        x2: number/*float*/, y2: number/*float*/,
        x3: number/*float*/, y3: number/*float*/
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 1 other location - About 1 hr to fix
src/core/common/PerspectiveTransform.ts on lines 130..138

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 71.

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

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

    public static quadrilateralToSquare(
        x0: number/*float*/, y0: number/*float*/,
        x1: number/*float*/, y1: number/*float*/,
        x2: number/*float*/, y2: number/*float*/,
        x3: number/*float*/, y3: number/*float*/
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 1 other location - About 1 hr to fix
src/core/common/PerspectiveTransform.ts on lines 96..128

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 71.

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 9 locations. Consider refactoring.
Open

            this.a12 * other.a21 + this.a22 * other.a22 + this.a32 * other.a23,
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 8 other locations - About 30 mins to fix
src/core/common/PerspectiveTransform.ts on lines 157..157
src/core/common/PerspectiveTransform.ts on lines 158..158
src/core/common/PerspectiveTransform.ts on lines 159..159
src/core/common/PerspectiveTransform.ts on lines 160..160
src/core/common/PerspectiveTransform.ts on lines 162..162
src/core/common/PerspectiveTransform.ts on lines 163..163
src/core/common/PerspectiveTransform.ts on lines 164..164
src/core/common/PerspectiveTransform.ts on lines 165..165

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 45.

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 9 locations. Consider refactoring.
Open

            this.a12 * other.a11 + this.a22 * other.a12 + this.a32 * other.a13,
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 8 other locations - About 30 mins to fix
src/core/common/PerspectiveTransform.ts on lines 157..157
src/core/common/PerspectiveTransform.ts on lines 158..158
src/core/common/PerspectiveTransform.ts on lines 159..159
src/core/common/PerspectiveTransform.ts on lines 161..161
src/core/common/PerspectiveTransform.ts on lines 162..162
src/core/common/PerspectiveTransform.ts on lines 163..163
src/core/common/PerspectiveTransform.ts on lines 164..164
src/core/common/PerspectiveTransform.ts on lines 165..165

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 45.

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 9 locations. Consider refactoring.
Open

            this.a13 * other.a11 + this.a23 * other.a12 + this.a33 * other.a13,
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 8 other locations - About 30 mins to fix
src/core/common/PerspectiveTransform.ts on lines 157..157
src/core/common/PerspectiveTransform.ts on lines 158..158
src/core/common/PerspectiveTransform.ts on lines 159..159
src/core/common/PerspectiveTransform.ts on lines 160..160
src/core/common/PerspectiveTransform.ts on lines 161..161
src/core/common/PerspectiveTransform.ts on lines 162..162
src/core/common/PerspectiveTransform.ts on lines 164..164
src/core/common/PerspectiveTransform.ts on lines 165..165

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 45.

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 9 locations. Consider refactoring.
Open

            this.a13 * other.a21 + this.a23 * other.a22 + this.a33 * other.a23,
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 8 other locations - About 30 mins to fix
src/core/common/PerspectiveTransform.ts on lines 157..157
src/core/common/PerspectiveTransform.ts on lines 158..158
src/core/common/PerspectiveTransform.ts on lines 159..159
src/core/common/PerspectiveTransform.ts on lines 160..160
src/core/common/PerspectiveTransform.ts on lines 161..161
src/core/common/PerspectiveTransform.ts on lines 162..162
src/core/common/PerspectiveTransform.ts on lines 163..163
src/core/common/PerspectiveTransform.ts on lines 165..165

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 45.

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 9 locations. Consider refactoring.
Open

            this.a12 * other.a31 + this.a22 * other.a32 + this.a32 * other.a33,
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 8 other locations - About 30 mins to fix
src/core/common/PerspectiveTransform.ts on lines 157..157
src/core/common/PerspectiveTransform.ts on lines 158..158
src/core/common/PerspectiveTransform.ts on lines 159..159
src/core/common/PerspectiveTransform.ts on lines 160..160
src/core/common/PerspectiveTransform.ts on lines 161..161
src/core/common/PerspectiveTransform.ts on lines 163..163
src/core/common/PerspectiveTransform.ts on lines 164..164
src/core/common/PerspectiveTransform.ts on lines 165..165

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 45.

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 9 locations. Consider refactoring.
Open

            this.a11 * other.a11 + this.a21 * other.a12 + this.a31 * other.a13,
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 8 other locations - About 30 mins to fix
src/core/common/PerspectiveTransform.ts on lines 158..158
src/core/common/PerspectiveTransform.ts on lines 159..159
src/core/common/PerspectiveTransform.ts on lines 160..160
src/core/common/PerspectiveTransform.ts on lines 161..161
src/core/common/PerspectiveTransform.ts on lines 162..162
src/core/common/PerspectiveTransform.ts on lines 163..163
src/core/common/PerspectiveTransform.ts on lines 164..164
src/core/common/PerspectiveTransform.ts on lines 165..165

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 45.

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 9 locations. Consider refactoring.
Open

            this.a11 * other.a31 + this.a21 * other.a32 + this.a31 * other.a33,
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 8 other locations - About 30 mins to fix
src/core/common/PerspectiveTransform.ts on lines 157..157
src/core/common/PerspectiveTransform.ts on lines 158..158
src/core/common/PerspectiveTransform.ts on lines 160..160
src/core/common/PerspectiveTransform.ts on lines 161..161
src/core/common/PerspectiveTransform.ts on lines 162..162
src/core/common/PerspectiveTransform.ts on lines 163..163
src/core/common/PerspectiveTransform.ts on lines 164..164
src/core/common/PerspectiveTransform.ts on lines 165..165

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 45.

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 9 locations. Consider refactoring.
Open

            this.a13 * other.a31 + this.a23 * other.a32 + this.a33 * other.a33
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 8 other locations - About 30 mins to fix
src/core/common/PerspectiveTransform.ts on lines 157..157
src/core/common/PerspectiveTransform.ts on lines 158..158
src/core/common/PerspectiveTransform.ts on lines 159..159
src/core/common/PerspectiveTransform.ts on lines 160..160
src/core/common/PerspectiveTransform.ts on lines 161..161
src/core/common/PerspectiveTransform.ts on lines 162..162
src/core/common/PerspectiveTransform.ts on lines 163..163
src/core/common/PerspectiveTransform.ts on lines 164..164

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 45.

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 9 locations. Consider refactoring.
Open

            this.a11 * other.a21 + this.a21 * other.a22 + this.a31 * other.a23,
Severity: Major
Found in src/core/common/PerspectiveTransform.ts and 8 other locations - About 30 mins to fix
src/core/common/PerspectiveTransform.ts on lines 157..157
src/core/common/PerspectiveTransform.ts on lines 159..159
src/core/common/PerspectiveTransform.ts on lines 160..160
src/core/common/PerspectiveTransform.ts on lines 161..161
src/core/common/PerspectiveTransform.ts on lines 162..162
src/core/common/PerspectiveTransform.ts on lines 163..163
src/core/common/PerspectiveTransform.ts on lines 164..164
src/core/common/PerspectiveTransform.ts on lines 165..165

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 45.

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

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