Add interpolation and WebP radar options to Environment Canada

[michaeldavie]

Proposed change

Adds two options to the Environment Canada radar camera's options flow (introduced in #173415):

• Smooth radar image (radar_interpolation, boolean): requests the INTERPOLATION=TRUE WMS parameter from Environment Canada so the rendered radar layer is smoothed instead of pixelated. Defaults to False, the previous hardcoded behaviour.
• Use WebP images (radar_webp, boolean): requests the radar layer as WebP instead of PNG and returns camera/animation output as WebP instead of PNG/GIF, trading higher per-frame latency for lower bandwidth. Defaults to False, the previous hardcoded behaviour.

Defaults to the previous behaviour, so existing installations are unchanged until the user opts in.

This depends on the env-canada 0.18.0 bump in #177569 (adds the ECMap interpolation/webp parameters), and is stacked on that branch — please merge #177569 first.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue: 8 colour radar map michaeldavie/env_canada#143
• Link to documentation pull request: Document interpolation and webp radar options for Environment Canada home-assistant.io#47119
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• I understand the code I am submitting and can explain how it works.
• The code change is tested and works locally.
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• Tests have been added to verify that the new code works.
• Any generated code has been carefully reviewed for correctness and compliance with project standards.

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• Documentation added/updated for www.home-assistant.io

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  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies a diff between library versions and ideally a link to the changelog/release notes is added to the PR description.

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[home-assistant]

Hey there @gwww, mind taking a look at this pull request as it has been labeled with an integration (environment_canada) you are listed as a code owner for? Thanks!

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[Copilot]

Pull request overview

Adds opt-in smoothing and WebP output options to Environment Canada radar cameras.

Changes:

• Adds interpolation and WebP options with backward-compatible defaults.
• Passes saved options to ECMap and expands tests.
• Updates translations and env-canada to 0.18.0.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
homeassistant/components/environment_canada/__init__.py	Passes new options to ECMap.
homeassistant/components/environment_canada/config_flow.py	Adds both options to the options flow.
homeassistant/components/environment_canada/const.py	Defines option keys and defaults.
homeassistant/components/environment_canada/manifest.json	Updates the dependency version.
homeassistant/components/environment_canada/strings.json	Adds user-facing option text.
requirements_all.txt	Updates the generated dependency requirement.
tests/components/environment_canada/test_config_flow.py	Tests option persistence and ECMap arguments.

[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated no new comments.