Add HydroBASINS North America Level 11 polygon data
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评估
调研方向
首先检查 public/fixtures/ 和现有的地图设置，了解 fixture GeoJSON 文件是如何加载和渲染的。获取 HydroBASINS Standard North America Level 11 源数据，将其转换为 GeoJSON，并保存为 HydroBASINS Level 11 (North America).geojson。完成的标准是结构通过验证、文件位于 public/fixtures/ 中，并且数据集能在地图中渲染。
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描述
Issue created with ChatGPT models' help
Description
Add HydroBASINS North America Level 11 polygon data into the repository by converting the provided HydroBASINS GIS dataset into valid GeoJSON format.
HydroBASINS contains multiple hierarchical watershed levels (12 total levels), but this issue should only focus on Level 11 polygon data for North America to keep the contribution small and beginner-friendly.
The converted GeoJSON file should then be uploaded into the repository fixtures folder so the existing map setup can consume and render the dataset.
Goals
- Obtain HydroBASINS North America Level 11 polygon dataset
- Convert the source GIS data into valid GeoJSON
- Upload converted GeoJSON into the repo fixtures folder
- Verify the GeoJSON structure remains valid
- Keep implementation lightweight and beginner-friendly
Implementation Instructions
- Download the HydroBASINS Standard North America dataset
- Focus only on:
Level 11 files: hybas_na_lev11_v1c
-
Ignore the remaining HydroBASINS levels for this issue
-
Convert to valid
.geojsonformat by selecting all geospatial files in the dataset for Level 11:-
dBase database file (
.dbf) -
Projection file (
.prj) -
Binary spatial index file (
.sbn) -
ESRI spatial index shapefile (
.sbx) -
Shapefile (
.shp) -
Shapefile XML (
.shp.xml) -
File Geodatabase (
.gdb) -
Compiled shapefile (
.shx) -
or other provided GIS formats
-
-
Contributors may use standard GIS conversion workflows/tools including:
-
Name the final GeoJSON file:
HydroBASINS Level 11 (North America).geojson
- Upload the GeoJSON file into:
public/fixtures/
Repo path:
https://github.com/OpenSourceFellows/map_dashboard_hackathon/tree/main/public/fixtures
- Verify the GeoJSON structure is valid
- Verify the dataset renders correctly in the existing map setup
- Keep the dataset limited to North America only
Optional lightweight cleanup improvements:
- Remove unnecessary attributes/properties
- Reduce file size if conversion output is extremely large
- Preserve polygon geometry accuracy during conversion
Expected Functionalities
GeoJSON Conversion
- HydroBASINS Level 11 polygon data converts successfully into valid GeoJSON
- Polygon geometry and key properties remain intact after conversion
Repository Integration
- GeoJSON file is uploaded into the fixtures folder
- Existing map setup can load and render the dataset
Notes
- HydroBASINS contains 12 hierarchical levels, but this issue only covers Level 11 polygons
- Contributors may use any reasonable GIS conversion workflow/tool
- Keep PR scope small and focused on dataset conversion/upload
- No frontend UI work is required for this issue
- Contributors do not need to process all HydroBASINS layers
Acceptance Criteria
- HydroBASINS North America Level 11 polygon dataset converted to valid GeoJSON
- GeoJSON file uploaded into
public/fixtures/ - File named
HydroBASINS Level 11 (North America).geojson - GeoJSON structure is valid and readable
- Dataset renders correctly in existing map setup
- PR scope remains small and beginner-friendly
Resources
- 主要语言
- HTML
- 星标
- 2
- 派生
- 11
- PR 合并指标
- 30 天内没有已合并 PR
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- 提交 Pull Request，并在描述里引用这个 Issue 编号。
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