[1.0.0] Surface basics

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#2,933 opened on Jun 4, 2026 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 5/5
Estimated time: Over a week
Newbie friendliness: 25/100

Issue type: Feature
Clarity: Needs clarification
Activity status: Quiet
Tech stack: python
Domain: data

Research direction

Start by comparing the README feature matrix with xrspatial/{slope,aspect,curvature,hillshade,sky_view_factor}.py, then review the dark-corner decisions in #2930 and the linked bug issues. The work is done when the public surface, sweep checks, and notebook example checklist are cleared without CRITICAL or HIGH findings.

Written by the indexing model from the issue text.

Description

1.0.0-tracking area:surface

1.0.0 readiness: Surface basics

Area: Surface Functions: slope, aspect, curvature, hillshade, northness, eastness, sky_view_factor
Source: xrspatial/{slope,aspect,curvature,hillshade,sky_view_factor}.py

Scope

Public surface frozen against the README feature matrix
Dark-corner decisions resolved (see #2930)

Sweep clearance, no CRITICAL or HIGH (accuracy and security first)

Accuracy /deep-sweep xrspatial/slope.py
Security
Performance
API consistency

Last swept: none yet

Examples

Notebook example
(optional) standalone script

Linked bug issues

#2778 (High) Chunked geodesic dask slope blocked by full-raster memory guard
#2782 (Low) Consider unit-mismatch warning for aspect() planar path
#2783 (High) aspect(method='geodesic') memory guard is eager-only too

Dominant language: Python
Stars: 972
Forks: 92
Avg merge: 2d 12h
Merged PRs (30d): 7

Contributor guide

Open the contributing guide

First steps

Read the whole issue, then the project's contributing guide.
Comment on the issue to say you are picking it up — it saves two people doing the same work.
Fork the repository and make your change on a branch.
Open a pull request that references the issue number.

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