SFMS Insights: Fire Weather Raster Visualization #4949

conbrad · 2025-12-12T00:17:55Z

Adds new SFMS Insights page with interactive map visualization of fire weather raster data (GeoTIFF) from BC government object store.

Features:

6 Fire Weather Indices: FWI, DMC, DC, FFMC, BUI, ISI with proper color ramps and class breaks
Dynamic Visualization: Hover tooltips showing pixel values, auto-updating legend per raster type
Date Picker: ASA-style date picker for historical and forecast data
Snow Layer: PMTiles-based snow coverage overlay
Loading/Error States: Visual feedback during raster tile loading
wps_tools.generate_sfms_cog script and launch config to selectively generate COGs for the frontend (currently ran for June 27, 2025)

Technical Implementation:

Backend: FastAPI proxy endpoint for streaming S3 GeoTIFF files (bypasses CORS, supports Range requests, requires auth)
Frontend: WebGLTile layers with dynamic color expressions, requesting cogs from object store proxy
NoData Handling: Dual approach (GeoTIFF source parameter + color expression thresholds)
Config-Driven: Centralized RASTER_CONFIG for labels and color breaks across all raster types

Closes #4169
Closes #4170
Closes #4182
Closes #4161
Closes #4171
Closes #4183
Closes #4959

codecov · 2025-12-12T00:30:13Z

Codecov Report

❌ Patch coverage is 87.37864% with 117 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.31%. Comparing base (214636e) to head (4c71cd5).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...es/sfmsInsights/components/map/layerDefinitions.ts	40.00%	23 Missing and 4 partials ⚠️
...atures/sfmsInsights/components/map/layerManager.ts	82.75%	3 Missing and 12 partials ⚠️
...c/features/sfmsInsights/components/map/SFMSMap.tsx	67.50%	6 Missing and 7 partials ⚠️
...fmsInsights/components/map/rasterTooltipHandler.ts	68.42%	7 Missing and 5 partials ⚠️
...shared/src/wps_shared/tests/geospatial/test_cog.py	92.80%	6 Missing and 3 partials ⚠️
...api/src/app/tests/utils/test_object_store_proxy.py	96.58%	7 Missing and 1 partial ⚠️
...nsights/components/map/RasterErrorNotification.tsx	80.00%	4 Missing and 3 partials ⚠️
...ckages/wps-shared/src/wps_shared/geospatial/cog.py	70.00%	3 Missing and 3 partials ⚠️
...nsights/components/map/rasterTooltipInteraction.ts	83.33%	0 Missing and 5 partials ⚠️
...ures/sfmsInsights/components/map/RasterTooltip.tsx	63.63%	3 Missing and 1 partial ⚠️
... and 7 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4949      +/-   ##
==========================================
+ Coverage   74.86%   75.31%   +0.45%     
==========================================
  Files         587      599      +12     
  Lines       27610    28515     +905     
  Branches     2045     2129      +84     
==========================================
+ Hits        20671    21477     +806     
- Misses       6360     6408      +48     
- Partials      579      630      +51

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web/src/features/sfmsInsights/components/map/layerManager.test.ts

brettedw · 2026-01-05T21:47:31Z

web/src/features/sfmsInsights/components/map/sfmsFeatureStylers.ts

+}
+
+// Backward compatibility
+export const fwiColourExpression = () => getFireWeatherColourExpression('fwi')


I don't think this is used anywhere

Removed in: a732899

sonarqubecloud · 2026-01-05T22:36:47Z

Quality Gate passed

Issues
0 New issues
13 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
2.6% Duplication on New Code

See analysis details on SonarQube Cloud

brettedw · 2026-01-05T23:13:41Z

backend/packages/wps-shared/src/wps_shared/geospatial/cog.py

+    warped = gdal.Warp(
+        "",  # Empty string creates in-memory dataset
+        src_ds,
+        format="MEM",
+        dstSRS=target_srs,
+        resampleAlg=resample_alg.value,
+    )
+
+    if warped is None:
+        raise RuntimeError(f"Failed to warp raster to {target_srs}")
+
+    # Translate to COG format with auto-generated overviews
+    result = gdal.Translate(
+        output_path,
+        warped,
+        format="COG",
+        creationOptions=[
+            f"COMPRESS={compression}",
+            "BIGTIFF=IF_SAFER",
+            "OVERVIEWS=IGNORE_EXISTING",  # Always create new overviews
+        ],
+    )


Looking at this: https://gdal.org/en/stable/drivers/raster/cog.html#reprojection-related-creation-options, I'm not sure we actually need the step of Warping first, it might all be able to be done in the COG creation options. Either way is fine I think, it would just remove a step potentially. Otherwise I think the creation and batch creation scripts look good!

brettedw

This is awesome, great work!
My only thought is that we should follow it up soon with an 'About this data' button or something similar, since the rasters we're showing here are different from the ones in WF1. It would reduce confusion for anyone checking it out

dgboss

Amazing work and test coverage!

conbrad added 13 commits December 11, 2025 14:25

render hardcoded fwi tif

6989e8e

make raster generic

fc1a0aa

color break legend

ca30bed

Stylin

4e53d4d

hook up other raster types with dropdown

1472383

nodata value

c4cdbe7

dmc color breaks

d733857

all color breaks

871f087

cleanup

a0718e5

add back no data handling

0052d02

cleanup typescript

e981256

non-optional raster date

d62d865

Merge branch 'main' into task/sfms-render-tifs

1dd994d

conbrad added 16 commits December 12, 2025 09:36

cleanup object streaming

9c33759

Require authentication

cd120b6

cleanup

8639bfe

move raster type definition

bc713d3

naming

cb319a9

extract content range handling into class

6f2c889

cog generation script

53fce18

Merge branch 'main' into task/sfms-render-tifs

ffc3db0

fix reference

10b0c41

show snow by default, disable with checkbox

b2844ed

cleanup

054c839

no tooltip for no data

54faf98

Merge branch 'main' into task/sfms-render-tifs

9c8559e

nodata value tests

0d8f0eb

extract tooltip handler

d48ac14

Make an ol interaction

36d435c

conbrad added 8 commits January 5, 2026 11:42

use globalThis

0e4bde7

type aliases

5a2d0f3

use Number.isNan

fbce3f5

clean up sfms feature styler

044ab0d

flip negation logic for clarity

01c3fef

prefer globalThis

b763583

dedup code

aa8a10c

snow and fuel layers go thru proxy

657a220

dgboss reviewed Jan 5, 2026

View reviewed changes

web/src/features/sfmsInsights/components/map/layerManager.test.ts Outdated Show resolved Hide resolved

dgboss reviewed Jan 5, 2026

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web/src/features/sfmsInsights/components/map/layerManager.test.ts Show resolved Hide resolved

dgboss reviewed Jan 5, 2026

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web/src/features/sfmsInsights/components/map/layerManager.test.ts Show resolved Hide resolved

conbrad added 5 commits January 5, 2026 12:48

mock FetchSource

a801fcd

fix snow path and test mock

3d6251b

test fixes

2b7286c

mock with async

719589a

fix mock

e02750c

brettedw reviewed Jan 5, 2026

View reviewed changes

conbrad added 4 commits January 5, 2026 14:09

fix mock

18bc815

remove unused function

a732899

try again

1916054

remove unused import

4c71cd5

conbrad requested review from brettedw and dgboss January 5, 2026 22:36

brettedw reviewed Jan 5, 2026

View reviewed changes

brettedw approved these changes Jan 5, 2026

View reviewed changes

dgboss approved these changes Jan 5, 2026

View reviewed changes

conbrad deployed to production January 6, 2026 00:28 Active

conbrad merged commit 244960e into main Jan 6, 2026
33 checks passed

conbrad deleted the task/sfms-render-tifs branch January 6, 2026 00:40

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SFMS Insights: Fire Weather Raster Visualization #4949

SFMS Insights: Fire Weather Raster Visualization #4949

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SFMS Insights: Fire Weather Raster Visualization #4949

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