TopoToolbox/libtopotoolbox

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A C library for the analysis of digital elevation models.

Stars: 2
Forks: 11
Open beginner issues: 0
Indexed issues: 37

Dominant language: C
License: GPL-3.0
Last GitHub push: Jul 31, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

37 open issues indexed

Multiple flow directions Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

TopoToolbox/libtopotoolbox#236 · Opened Aug 6, 2026
`dbentropy` Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

TopoToolbox/libtopotoolbox#235 · Opened Aug 6, 2026
Multiflow Direction and dentropy Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

TopoToolbox/libtopotoolbox#234 · 2 comments · Opened Aug 5, 2026
What happens when the queue fills up in `reconstruct_hybrid`? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#233 · 1 comment · Opened Jul 31, 2026
Deprecate `flow_routing_d8_carve` and `flow_routing_d8_edgelist` Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

TopoToolbox/libtopotoolbox#226 · Opened May 6, 2026
Deprecate `flow_accumulation` and `drainagebasins` Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#212 · Opened Feb 26, 2026
Document data structures used by libtopotoolbox Open

documentation

Difficulty 4/5 3-5 days Newbie friendliness 45/100

TopoToolbox/libtopotoolbox#168 · Opened Feb 6, 2025
An interface for flow network traversals Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#164 · 1 comment · Opened Jan 31, 2025
Run tests to completion even if one property fails. Open

test

Difficulty 3/5 1-2 days Newbie friendliness 45/100

TopoToolbox/libtopotoolbox#159 · Opened Jan 14, 2025
Record more granular test results. Open

test

Difficulty 3/5 1-2 days Newbie friendliness 45/100

TopoToolbox/libtopotoolbox#158 · Opened Jan 14, 2025
Output DEMs and other information from failing tests. Open

test

Difficulty 3/5 1-2 days Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#150 · Opened Nov 25, 2024
Label closed basins in `identifyflats` Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

TopoToolbox/libtopotoolbox#141 · 1 comment · Opened Oct 23, 2024
Monitor benchmark results over time Open

test

Difficulty 5/5 Over a week Newbie friendliness 25/100

TopoToolbox/libtopotoolbox#132 · Opened Sep 17, 2024
Discrepancies in flow routing between libtopotoolbox and TopoToolbox v2 Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#122 · 4 comments · Opened Sep 3, 2024
Implement castshadow Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

TopoToolbox/libtopotoolbox#117 · Opened Sep 3, 2024
Implement toposhielding Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#116 · Opened Sep 3, 2024
Implement roughness Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#115 · Opened Sep 3, 2024
Implement localtopography Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

TopoToolbox/libtopotoolbox#113 · Opened Sep 3, 2024
Add missing data infilling Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

TopoToolbox/libtopotoolbox#112 · 1 comment · Opened Sep 3, 2024
Implement filter Open

enhancement good first issue

Difficulty 4/5 3-5 days Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#110 · 3 comments · Opened Sep 3, 2024
Implement evansslope Open

enhancement good first issue

Difficulty 4/5 3-5 days Newbie friendliness 30/100

TopoToolbox/libtopotoolbox#109 · Opened Sep 3, 2024
Implement erode Open

enhancement good first issue

Difficulty 4/5 3-5 days Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#108 · 8 comments · Opened Sep 3, 2024
Implement elevateminima Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

TopoToolbox/libtopotoolbox#107 · Opened Sep 3, 2024
Implement Euclidean distance transform Open

enhancement good first issue

Difficulty 5/5 Over a week Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#106 · Opened Sep 3, 2024
Implement dilate Open

enhancement good first issue

Difficulty 4/5 3-5 days Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#105 · Opened Sep 3, 2024
Implement diffusion Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

TopoToolbox/libtopotoolbox#104 · Opened Sep 2, 2024
Implement curvature Open

enhancement good first issue

Difficulty 4/5 3-5 days Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#103 · 6 comments · Opened Sep 2, 2024
Implement aspect Open

enhancement good first issue

Difficulty 4/5 3-5 days Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#102 · Opened Sep 2, 2024
Implement arcslope Open

enhancement good first issue

Difficulty 3/5 1-2 days Newbie friendliness 35/100

TopoToolbox/libtopotoolbox#101 · Opened Sep 2, 2024
Implement acv Open

enhancement good first issue

TopoToolbox/libtopotoolbox#100 · 3 comments · 1 assignee · Opened Sep 2, 2024
Track feature parity between v2 and v3 Open

documentation

Difficulty 5/5 Over a week Newbie friendliness 25/100

TopoToolbox/libtopotoolbox#98 · 1 comment · Opened Sep 2, 2024
Add tests for Graphflood Open

test

Difficulty 3/5 1-2 days Newbie friendliness 45/100

TopoToolbox/libtopotoolbox#90 · Opened Aug 13, 2024
Attach documentation to particular code releases Open

documentation

Difficulty 4/5 3-5 days Newbie friendliness 38/100

TopoToolbox/libtopotoolbox#64 · Opened Jul 4, 2024
Improve the test infrastructure Open

test

Difficulty 5/5 Over a week Newbie friendliness 25/100

TopoToolbox/libtopotoolbox#55 · Opened Jul 2, 2024
Implement avalanche2d Open

enhancement good first issue

Difficulty 4/5 3-5 days Newbie friendliness 38/100

TopoToolbox/libtopotoolbox#52 · Opened Jun 26, 2024
Create framework for documenting libtopotoolbox Open

documentation

Difficulty 5/5 Over a week Newbie friendliness 25/100

TopoToolbox/libtopotoolbox#26 · Opened Apr 23, 2024
Permit different array strides for fillsinks Open

enhancement

TopoToolbox/libtopotoolbox#23 · 3 comments · 1 assignee · Opened Apr 8, 2024

TopoToolbox/libtopotoolbox

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