Manifest.toml

# This file is machine-generated - editing it directly is not advised

julia_version = "1.7.3"
manifest_format = "2.0"

[[deps.ArgTools]]
uuid = "0dad84c5-d112-42e6-8d28-ef12dabb789f"

[[deps.Artifacts]]
uuid = "56f22d72-fd6d-98f1-02f0-08ddc0907c33"

[[deps.Base64]]
uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"

[[deps.CEnum]]
git-tree-sha1 = "eb4cb44a499229b3b8426dcfb5dd85333951ff90"
uuid = "fa961155-64e5-5f13-b03f-caf6b980ea82"
version = "0.4.2"

[[deps.Dates]]
deps = ["Printf"]
uuid = "ade2ca70-3891-5945-98fb-dc099432e06a"

[[deps.Downloads]]
deps = ["ArgTools", "FileWatching", "LibCURL", "NetworkOptions"]
uuid = "f43a241f-c20a-4ad4-852c-f6b1247861c6"

[[deps.FileWatching]]
uuid = "7b1f6079-737a-58dc-b8bc-7a2ca5c1b5ee"

[[deps.GEOS_jll]]
deps = ["Artifacts", "JLLWrappers", "Libdl", "Pkg"]
git-tree-sha1 = "4ceb4cdae127931b852ced4d3782bb51ab5e2632"
uuid = "d604d12d-fa86-5845-992e-78dc15976526"
version = "3.10.2+0"

[[deps.GeoInterface]]
deps = ["RecipesBase"]
git-tree-sha1 = "6b1a29c757f56e0ae01a35918a2c39260e2c4b98"
uuid = "cf35fbd7-0cd7-5166-be24-54bfbe79505f"
version = "0.5.7"

[[deps.InteractiveUtils]]
deps = ["Markdown"]
uuid = "b77e0a4c-d291-57a0-90e8-8db25a27a240"

[[deps.JLLWrappers]]
deps = ["Preferences"]
git-tree-sha1 = "abc9885a7ca2052a736a600f7fa66209f96506e1"
uuid = "692b3bcd-3c85-4b1f-b108-f13ce0eb3210"
version = "1.4.1"

[[deps.LibCURL]]
deps = ["LibCURL_jll", "MozillaCACerts_jll"]
uuid = "b27032c2-a3e7-50c8-80cd-2d36dbcbfd21"

[[deps.LibCURL_jll]]
deps = ["Artifacts", "LibSSH2_jll", "Libdl", "MbedTLS_jll", "Zlib_jll", "nghttp2_jll"]
uuid = "deac9b47-8bc7-5906-a0fe-35ac56dc84c0"

[[deps.LibGEOS]]
deps = ["CEnum", "GEOS_jll", "GeoInterface"]
git-tree-sha1 = "b1506853804fb55b998eb61b66d3afb089dbfa28"
uuid = "a90b1aa1-3769-5649-ba7e-abc5a9d163eb"
version = "0.6.12"

[[deps.LibGit2]]
deps = ["Base64", "NetworkOptions", "Printf", "SHA"]
uuid = "76f85450-5226-5b5a-8eaa-529ad045b433"

[[deps.LibSSH2_jll]]
deps = ["Artifacts", "Libdl", "MbedTLS_jll"]
uuid = "29816b5a-b9ab-546f-933c-edad1886dfa8"

[[deps.Libdl]]
uuid = "8f399da3-3557-5675-b5ff-fb832c97cbdb"

[[deps.Logging]]
uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"

[[deps.Markdown]]
deps = ["Base64"]
uuid = "d6f4376e-aef5-505a-96c1-9c027394607a"

[[deps.MbedTLS_jll]]
deps = ["Artifacts", "Libdl"]
uuid = "c8ffd9c3-330d-5841-b78e-0817d7145fa1"

[[deps.MozillaCACerts_jll]]
uuid = "14a3606d-f60d-562e-9121-12d972cd8159"

[[deps.NetworkOptions]]
uuid = "ca575930-c2e3-43a9-ace4-1e988b2c1908"

[[deps.Pkg]]
deps = ["Artifacts", "Dates", "Downloads", "LibGit2", "Libdl", "Logging", "Markdown", "Printf", "REPL", "Random", "SHA", "Serialization", "TOML", "Tar", "UUIDs", "p7zip_jll"]
uuid = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"

[[deps.Preferences]]
deps = ["TOML"]
git-tree-sha1 = "47e5f437cc0e7ef2ce8406ce1e7e24d44915f88d"
uuid = "21216c6a-2e73-6563-6e65-726566657250"
version = "1.3.0"

[[deps.Printf]]
deps = ["Unicode"]
uuid = "de0858da-6303-5e67-8744-51eddeeeb8d7"

[[deps.REPL]]
deps = ["InteractiveUtils", "Markdown", "Sockets", "Unicode"]
uuid = "3fa0cd96-eef1-5676-8a61-b3b8758bbffb"

[[deps.Random]]
deps = ["SHA", "Serialization"]
uuid = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"

[[deps.RecipesBase]]
git-tree-sha1 = "6bf3f380ff52ce0832ddd3a2a7b9538ed1bcca7d"
uuid = "3cdcf5f2-1ef4-517c-9805-6587b60abb01"
version = "1.2.1"

[[deps.SHA]]
uuid = "ea8e919c-243c-51af-8825-aaa63cd721ce"

[[deps.Serialization]]
uuid = "9e88b42a-f829-5b0c-bbe9-9e923198166b"

[[deps.Sockets]]
uuid = "6462fe0b-24de-5631-8697-dd941f90decc"

[[deps.TOML]]
deps = ["Dates"]
uuid = "fa267f1f-6049-4f14-aa54-33bafae1ed76"

[[deps.Tar]]
deps = ["ArgTools", "SHA"]
uuid = "a4e569a6-e804-4fa4-b0f3-eef7a1d5b13e"

[[deps.UUIDs]]
deps = ["Random", "SHA"]
uuid = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"

[[deps.Unicode]]
uuid = "4ec0a83e-493e-50e2-b9ac-8f72acf5a8f5"

[[deps.Zlib_jll]]
deps = ["Libdl"]
uuid = "83775a58-1f1d-513f-b197-d71354ab007a"

[[deps.nghttp2_jll]]
deps = ["Artifacts", "Libdl"]
uuid = "8e850ede-7688-5339-a07c-302acd2aaf8d"

[[deps.p7zip_jll]]
deps = ["Artifacts", "Libdl"]
uuid = "3f19e933-33d8-53b3-aaab-bd5110c3b7a0"

Project.toml

[deps]
LibGEOS = "a90b1aa1-3769-5649-ba7e-abc5a9d163eb"

test.jl

import LibGEOS

wkt = open("weird_polygon.wkt") do file
    read(file, String)
end
poly = LibGEOS.readgeom(wkt)
@show "before tri"
@show LibGEOS.isValid(poly)
LibGEOS.GEOSConstrainedDelaunayTriangulation_r(LibGEOS._context.ptr, poly.ptr)
@show "after tri"

weird_polygon.wkt

POLYGON ((1.7862685046962532 0.2923021911868067, 1.7728389809573666 0.2627438719792648, 1.746100000000001 0.2334000000000009, 1.7150804631420686 0.2161586105737922, 1.6759 0.209, 0.3241 0.209, 0.2840389403162291 0.2165244534091589, 0.26281199593527 0.2271117271007482, 0.2451970039279606 0.2409124780256404, 0.220203873371505 0.2753019366857534, 0.2119959512407714 0.2984989878101932, 0.209 0.3233, 0.209 1.6759, 0.2114712418577923 1.6990146526776198, 0.2178177033571282 1.7193153375833403, 0.2407676132817306 1.7547086448098228, 0.2571000000000007 1.7690000000000003, 0.2775992176450858 1.7808316429453195, 0.3030606643061082 1.7889360141633408, 0.324 1.791, 1.676 1.791, 1.715794594594594 1.7835675675675677, 1.7371880040647283 1.7728882728992528, 1.755414722418766 1.7584861946606423, 1.7697324306821693 1.7419033500911634, 1.7821822966428729 1.7193153375833379, 1.7885287581422071 1.699014652677622, 1.7908999998269444 1.6775046880767683, 1.7909999998269444 0.3230046880767684, 1.7862685046962532 0.2923021911868067), (0.691 0.9229754642711925, 0.691 0.7011541640387603, 0.6936627376889104 0.6937321576162595, 0.7020245357288075 0.691, 0.9238458359612397 0.691, 0.9312678423837405 0.6936627376889104, 0.934 0.7020245357288075, 0.934 0.9238458359612397, 0.9313372623110896 0.9312678423837405, 0.9229893209534975 0.9339991155309167, 0.6990442469761068 0.9339012801993407, 0.693329984148253 0.9309041524224672, 0.691 0.9229754642711925), (0.6953392867391299 1.067444033745615, 0.9259557530238928 1.0660987198006593, 0.9315698728030161 1.0689552959301913, 0.9339991155309167 1.0770106790465024, 0.9339012801993407 1.3009557530238929, 0.9315721240202081 1.3060497565109876, 0.9229893209534982 1.3089991155309166, 0.6990442469761072 1.3089012801993407, 0.6934301271969839 1.3060447040698087, 0.691 1.2983866353711833, 0.691 1.0758139687976573, 0.6953392867391299 1.067444033745615), (1.3031380819680736 0.6915341696737235, 1.3089993838262433 0.7013965510439816, 1.3089012068069301 0.9261237482521002, 1.30633726231109 0.93126784238374, 1.2986034489560137 0.9339993838262434, 1.0738762517478988 0.9339012068069299, 1.0687321576162598 0.9313372623110899, 1.0659999999999998 0.923589585046487, 1.0659999999999998 0.7011541640387645, 1.0689552959301913 0.6934301271969839, 1.0770245357288075 0.691, 1.3031380819680736 0.6915341696737235), (1.0690958475775336 1.068329984148252, 1.076410414953513 1.0659999999999998, 1.2991860312023409 1.0659999999999998, 1.3065698728030166 1.0689552959301918, 1.3090000000000002 1.0770245357288104, 1.3090000000000002 1.2988458359612356, 1.3063372623110892 1.306267842383741, 1.2986034489560183 1.3089993838262433, 1.0738762517478997 1.3089012068069301, 1.068732157616259 1.3063372623110892, 1.0660006161737567 1.2986034489560183, 1.0660987931930699 1.0738762517478997, 1.0690958475775336 1.068329984148252))