view: convert integer to floating to enable masking with nan

[yunjunz]

Description of proposed changes

• view.viewer.plot(): convert integer to floating to enable masking with nan for one subplot scenario

Reminders

• Pass Pre-commit check (green)
• Pass Codacy code review (green)
• Pass Circle CI test (green)
• Make sure that your code follows our style. Use the other functions/files as a basis.
• If modifying functionality, describe changes to function behavior and arguments in a comment below the function declaration.

Summary by Sourcery

Convert integer data types to floating point in the plot function to enable masking with NaN values, ensuring proper handling of no-data values.

Bug Fixes:

• Convert integer data types to floating point in the plot function to enable masking with NaN values.

Enhancements:

• Add a check to convert integer data types to floating point before applying NaN masking in the plot function.

[sourcery-ai]

Reviewer's Guide by Sourcery

The PR modifies the data type conversion logic in the plotting functionality to properly handle no-data values by converting integer arrays to floating-point before applying NaN masking. This ensures correct visualization when masking is needed.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Added data type conversion from integer to float32 before masking with NaN values	Added type checking using np.issubdtype to detect integer arrays Implemented conversion to float32 for integer arrays before NaN masking Applied conversion in both self.no_data_value and no_data_val masking scenarios	src/mintpy/view.py
Updated byte order comment in binary file reading function	Modified comment to indicate 'big-endian' next to 'little-endian' specification	src/mintpy/utils/readfile.py

---

Tips and commands

Interacting with Sourcery

• Trigger a new review: Comment @sourcery-ai review on the pull request.
• Continue discussions: Reply directly to Sourcery's review comments.
• Generate a GitHub issue from a review comment: Ask Sourcery to create an
  issue from a review comment by replying to it.
• Generate a pull request title: Write @sourcery-ai anywhere in the pull
  request title to generate a title at any time.
• Generate a pull request summary: Write @sourcery-ai summary anywhere in
  the pull request body to generate a PR summary at any time. You can also use
  this command to specify where the summary should be inserted.

Customizing Your Experience

Access your dashboard to:

• Enable or disable review features such as the Sourcery-generated pull request
  summary, the reviewer's guide, and others.
• Change the review language.
• Add, remove or edit custom review instructions.
• Adjust other review settings.

Getting Help

• Contact our support team for questions or feedback.
• Visit our documentation for detailed guides and information.
• Keep in touch with the Sourcery team by following us on X/Twitter, LinkedIn or GitHub.

[codeautopilot]

PR summary

This Pull Request addresses an issue in the view.viewer.plot() function where integer data types are converted to floating-point types to enable masking with NaN values. This change is necessary because NaN values are not compatible with integer data types, and the conversion ensures that data can be properly masked when a NO_DATA_VALUE is specified. The modification is particularly relevant for scenarios involving a single subplot.

Suggestion

To improve the clarity of the code, consider adding a comment explaining why the conversion from integer to floating-point is necessary, especially for those who might not be familiar with the limitations of NaN handling in integer arrays. Additionally, ensure that the conversion does not introduce unintended side effects, such as increased memory usage, especially for large datasets. If performance is a concern, consider implementing a check to only convert data types when necessary.

Disclaimer: This comment was entirely generated using AI. Be aware that the information provided may be incorrect.

Current plan usage: 0.00%

Have feedback or need help?
Discord
Documentation
[email protected]

[sourcery-ai]

Hey @yunjunz - I've reviewed your changes - here's some feedback:

Overall Comments:

• There appears to be an unrelated comment about byte order ('# big-endian') in readfile.py - was this intended to be included in this PR?

Here's what I looked at during the review

• 🟡 General issues: 2 issues found
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

---

Sourcery is free for open source - if you like our reviews please consider sharing them ✨

• X
• Mastodon
• LinkedIn
• Facebook

_{Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.}