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feat(data): follow CityGML geometry links within a city object member (#1536) - #1714
Part of #1536 (step 2b-3: XLinks). The issue promised that xlink:href references between geometries are resolved by gml:id, bounded so a reference cycle can't hang the reader. This PR resolves them within a city object member.
Most CityGML files write a building's solid as links to the polygons of its walls, roof and ground (lod2Solid/Solid/exterior/CompositeSurface/surfaceMember xlink:href="#…"). Until now every such link was counted as "left out", although the faces were drawn through the thematic surfaces: a 33 MB sample with 21,971 links said all of them were lost, while 99.5% pointed to faces of the same object. The other 0.5% point to faces of a nested BuildingInstallation, which were really missing from the building's solid.
What the reader does now:
Within the member. A link #id to a geometry written in the same member is read where the link stands. Links are followed after the object's own geometries, and those a ground surface makes come first. So a face the object already holds at that level of detail isn't read twice, and a ground face stays the ground's whatever order things are written in.
Bounded. Each geometry is read at most once per object and level of detail, so cycles end, including an element that is only a link to itself. Chains are followed in a loop, not by recursion: a chain of 20,000 links needs no deep stack. What a member's links read is bounded at 4× the member's size; the links past that are said.
Implicit geometries and cavities. A linked implicit geometry is drawn at its reference point, as one written out is. A solid whose exterior is a link that is found keeps its cavities, read in the solid's srsDimension.
Notices. Links to another member, another file or nothing keep the existing notice. Links to what isn't a geometry, and links past the bound, get their own notice with a count.
Out of scope, and still said: links between members (implicit geometry prototypes, consistsOfBuildingPart/groupMember by link as parent relations). They need an index of gml:id byte ranges in the quick-xml pass, and come in the next PR together with implicit geometries. Objects, thematic surfaces, rings, and a line's or ring's points and curves given only by a link stay as they were.
Testing
checks.sh: fmt, clippy -D warnings, doctests and cargo xtask layers pass. nextest: 5408 of 5410 pass. The 2 failures are in rustgis-engine and come from the local environment, not this change: geolibre_tools_run_on_layers_and_add_their_outputs needs the local geolibre program (it failed the same way on every run for feat(data): read CityGML 1.0 and 2.0 city models (#1536) #1616), and reload_reconverts_duckdb_table… is a DuckDB workspace test. This PR touches only crates/data/src/citygml* and the docs.
rustgis-data: 918 tests pass. 10 new or changed tests in citygml/tests.rs:
a solid of links to its own surfaces gives no notice;
links to nothing, to another file and to a non-geometry are said;
a linked ground stays the ground, also when the ground itself is a link written first;
a link to another object's geometry is read at the link's LoD;
a link from LoD 3 to an LoD 2 face is read at LoD 3;
cycles, self-links and a 20,000-link chain end;
the member budget is said;
a found exterior keeps its 2D cavities;
a linked implicit geometry is drawn at its reference point.
Manual, with rustgis-cli info on real files:
a 33 MB LoD 2 building model (21,971 links): the false "given only by a link" notice is gone; layers and rows are as before;
a 48 MB LoD 3 railway scene: unchanged;
two private 93–96 MB municipal models without links: identical output and notices, peak memory 140–153 MB.
CityGML imports now follow supported geometry links within the same member, including links to geometry associated with other objects or levels of detail. An object’s own geometry is read first, with ground-surface links prioritized. Linked implicit geometries and solid exteriors are supported.
Bug Fixes
Cyclic and repeated links are handled safely, and traversal is bounded to prevent excessive reads. Unresolved, unsupported, and over-limit links are reported; solids with unfollowed linked exteriors, including their cavities, are omitted.
Documentation
Updated the data-format guide to describe supported links, traversal limits, and linked solid handling.
…opengeos#1536)
A geometry given by xlink:href to one written in the same member is read where the link stands, after the object's own geometries and a ground surface's links first: one the object already holds at that level of detail isn't read again, cycles end, and what links read is bounded by the member's size. Links to another member, another file or nothing, to what isn't a geometry, and past the bound are said.
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Walkthrough
CityGML parsing now resolves supported geometry links within the same member. It indexes targets, reads an object’s own geometries before queued links, prioritizes ground links, and limits linked reads. Tests and documentation cover resolution rules, geometry context, read limits, and unsupported links.
Changes: CityGML geometry links
Layer / File(s)
Summary
Index member targets and link limits crates/data/src/citygml.rs
The parser trims GML IDs, indexes targets when a member contains href, and limits linked reads to four times the member’s byte length. Notices distinguish non-geometry targets from links refused after the limit.
Queue and follow geometry links crates/data/src/citygml.rs
Geometry traversal queues links with LOD and ground context. After reading written geometry, the parser resolves supported same-member targets and skips repeats at the same LOD. Linked solid exteriors defer their cavities until the shell is read. Failed walks discard links and geometry-read marks added during the walk.
Validate and document link behavior crates/data/src/citygml/tests.rs, docs/user-guide/data-formats.md
Tests cover cross-object and cross-LOD links, ground precedence, cycles, read limits, implicit geometries, blank IDs, and linked solid cavities. Documentation describes resolution rules and cases that are not followed.
sequenceDiagram
participant CityGMLParser
participant ObjectParser
participant GeometryWalker
participant MemberTargetIndex
CityGMLParser->>MemberTargetIndex: index targets for the member
CityGMLParser->>ObjectParser: parse object with targets and read budget
ObjectParser->>GeometryWalker: read written geometry and queue links
ObjectParser->>MemberTargetIndex: resolve queued fragment IDs
MemberTargetIndex-->>ObjectParser: return same-member targets
ObjectParser->>GeometryWalker: read eligible targets with saved context
Loading
Possibly related issues
opengeos/RustGIS#1536: The issue requests bounded CityGML geometry-link resolution by gml:id, which this change implements for supported same-member targets.
opengeos/RustGIS#1269: The issue identifies CityGML reading as later work; this change adds geometry-link resolution to the CityGML reader.
Possibly related PRs
opengeos/RustGIS#1616: This PR adds the CityGML reader and member parsing pipeline that this change extends.
opengeos/RustGIS#1537: This PR extracts shared city-model processing used after linked geometries are read.
opengeos/RustGIS#1565: This PR changes shared city-model geometry processing through which linked geometry is passed.
Suggested reviewers:giswqs
Merge Risk: Minimal · previous review 5a877
This change lets the CityGML reader follow geometry links within a city object member. Review found no remaining concrete merge-blocking issue. A minor edge case around repeated failure notices for enclosing geometries is noted but unconfirmed.
Pre-merge checks: 5
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Title check
The title clearly and concisely describes the main change: following CityGML geometry links within a member.
Description check
The description includes the required Summary, Testing, UI evidence, and Related issue sections. It explains the change, verification, and scope.
Docstring Coverage
Docstring coverage is 95.45% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentati…
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Full details: Docstring Coverage
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Docstring coverage is 95.45% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 22 functions across 2 files.
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A rabbit checks each fragment ID, Then follows paths where shapes may hide. The ground goes first, the bounds stay clear, A linked shell brings its cavities near. With cycles stopped, the forms appear.
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crates/data/src/citygml.rs
crates/data/src/citygml/tests.rs
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I did not run the tests or the code. Everything below comes from reading the diff and the surrounding source. There were no prior review threads on this PR, so no earlier concerns were skipped.
Bugs
Refused links are undercounted (high confidence). seen is marked before the budget check, so a repeat link to a refused target is dropped silently and links_past_limit misses it. Posted inline at crates/data/src/citygml.rs:1016.
In-place seen marks survive a rolled-back walk (low confidence). Walk::geometry marks seen before reading. When walk() rolls back a failed geometry, the marks stay, so a later link to a valid face inside that geometry is absorbed without a count. The bad-coordinates notice still fires for the failed geometry.
Performance
The link budget counts elements, not text (medium-high confidence). A target with few elements but a large posList costs almost nothing against the budget, yet parsing it is proportional to its text. One member with many nested parts linking to one big polygon can take roughly E × T work, and the member is the only cancellation point. The LINK_READS doc comment claims the bound is the member's size, which holds only in element terms. Posted inline at crates/data/src/citygml.rs:1022.
Quality
Ground ordering claim is only partly true (low confidence). The docs say a ground face stays the ground's whatever the write order. That holds for linked faces, but an in-place non-ground face with the same id is already in seen, so a later ground link to it is skipped. The face keeps its non-ground status. Unrealistic in practice, but the doc overstates it.
Link order (nit). Links::next uses Vec::pop, so links are followed in reverse written order. This affects which links the budget refuses. Consider a VecDeque or documenting the order.
Doc wrapping (nit). The module doc around citygml.rs:23–25 has an awkward line break ("intersection curves,").
Comment placement (nit). The "no look at Cancel" note sits in a code comment, but AGENTS.md asks for it in a doc comment.
Quality points are left for the release quality pass; the two bugs and the performance concern are the ones to fix in this PR.
AGENTS.md
The "Never crash" rules look satisfied: no unwrap, the budget subtraction is guarded, and recursion goes through XML depth only.
The "Never silent" rules are mostly met, with new notices for the new loss cases. The undercount above is the exception.
"Never hold the window" applies: the new loop has no Cancel check, and it is documented only in a code comment. The element-vs-text bound makes that worse.
The new links-follow tests cover the cases the PR lists.
Change size
Compared with the base branch (merge base 4a16da1 to PR head 7ba240b).
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Actionable comments posted: 1
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Inline comments:
Review comments at @crates/data/src/citygml.rs:
- Around line 1114-1118: Update the geometry walk around go so failed walks also
undo newly added entries in links.seen. Record each key only when Walk::geometry
newly inserts it, save the log position before the walk, and remove entries
added since that position in the go failure branch while preserving earlier seen
entries.
---
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Files selected for processing: 3
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…pengeos#1536)
The link budget is in bytes, so a long posList costs what it parses; a link refused for the budget isn't marked read, so a repeat is counted too; marks made by a walk that fails are taken back, the target's own included.
the Cancel note moved to Reading::object's doc comment, as AGENTS.md asks for a long step without a check.
The other points in the Claude summary are quality points (the ground-order wording, the order links are followed in, a line break in the module doc), and they are left for the release quality pass.
@coderabbitai On the failed Docstring Coverage pre-merge check: this push adds doc comments to the functions this PR adds or changes that lacked one (Reading::object, Links::mark, Links::push, Walk::geometry). The threshold measures the whole file, including functions this PR doesn't touch, so those are left to the release quality pass.
Overstated bad-coordinate count: a geometry with a gml:id that can't be read is counted once inline and again for every link that follows it (citygml.rs:1129). Example: an inline bad polygon plus one link gives "2 geometries" for one lost geometry. Confidence: medium-high. Inline comment posted.
Performance
None raised. The earlier element-count concern is fixed: the budget now charges target bytes (cost = target.range().len()).
Security
None found. Recursion is bounded, the link chain is followed in a loop, and I found no panic paths in non-test code.
Quality
Low confidence: Targets::of indexes every gml:id in the member, so links can reach terrain intersection curves, TIN triangles or appearance geometry that the docs say aren't read (citygml.rs:815). Inline comment posted.
AGENTS.md
Doc vs. behaviour (medium confidence): the docs say each geometry is read at most once per object and level, but Walk::geometry never checks links.seen. A link to a composite that holds an already-read polygon draws that polygon again (citygml.rs:1201). Inline comment posted.
Low confidence: when a solid's exterior link is not followed or is refused, its cavities are dropped with no count of their own. The docs describe this, but the notices don't report it.
Already raised (left alone, 3): the three earlier threads (element-count budget at 1022, seen marked before the budget check at 1016, and seen not undone on a dropped geometry at 1132). The code has changed since, and each is addressed in this PR, so I am not re-posting them.
Change size
Compared with main (merge base 4a16da1 to PR head 01cb627).
@jgregoriorincon I checked commit 01cb6270. The four named functions have doc comments, and Reading::object documents the gap between Cancel checks.
The last saved Docstring Coverage result passed at 94.74%, above the 80% threshold. That result measured touched functions with complexity of at least 2, not the whole file. I have not verified that the saved result applies to 01cb6270; please check the current revision’s result before merging.
The stored release-quality-pass guidance supports leaving the named quality points for that pass.
Learnings added
Learnt from: jgregoriorincon
URL: https://github.com/opengeos/RustGIS/pull/1714
Timestamp: 2026-11-10T14:22:54.052Z
Learning: Within repository "opengeos/RustGIS": When reviewing a long step that runs without a Cancel check, verify that its doc comment identifies that gap.
Note: Learnings are effective only in the context of similar code segments. To apply general coding guidelines, please configure review instructions. You can manage existing learnings in the app.
Learnings used
Learnt from: jgregoriorincon
Repo: opengeos/RustGIS PR: 1616
File: docs/user-guide/data-formats.md:0-0
Timestamp: 2026-11-10T03:06:01.901Z
Learning: Within repository "opengeos/RustGIS": In opengeos/RustGIS, when a review point is marked for the release quality pass, recognize that maintainers collect such points before each release. Do not propose a separate follow-up issue solely to track that point unless requested.
Learnt from: deniial00
Repo: opengeos/RustGIS PR: 1215
File: :0-0
Timestamp: 2026-11-01T17:51:35.449Z
Learning: Within repository "opengeos/RustGIS": When reviewing pull requests in opengeos/RustGIS, treat automated review findings as advisory rather than mandatory merge requirements. Prioritize real bugs. If a contributor gives a reasoned explanation for declining a minor or low-value suggestion, acknowledge that decision without insisting on the change. Leave merge requirements to the maintainers.
…opengeos#1536)
Reached through a link, a geometry the object has already read at that level of detail is skipped, so a linked composite of polygons read before adds no duplicate faces, points or lines.
Ground link dropped when the face was already written inline (medium confidence). In follow, a GroundSurface link to a face the solid wrote inline finds the key already read as a wall face and returns. That face loses its ground role, so a footprint built from ground surfaces can miss it. The existing tests cover only link-first orders. Posted inline at crates/data/src/citygml.rs:1031, with a regression-test suggestion.
A blank gml:id no longer makes an element an object (low confidence).gml_id now drops blank ids, and is_object relies on it. A childless element with a blank id now falls through to value() and is silently folded into its parent's attributes. Posted inline at crates/data/src/citygml.rs:522.
Security
Nothing found. Link following is bounded by a per-member byte budget and a visited set. Recursion is replaced by a loop, and I found no panic paths in the new code.
Performance
Nothing new. The byte budget bounds per-member work, and the link queue shrinks each iteration, so the loop terminates.
Quality
Nothing raised. The docs say "each geometry is read at most once per object and level", which is still not true for inline duplicates (see below).
AGENTS.md
Notices are one per kind with a count, and clean input gives none. The new not_geometry_links and links_past_limit notices both follow that rule. No unwrap, expect or panic appears in non-test code.
Left alone (already raised on this PR, not re-posted)
The bad-coordinate notice is counted twice when a geometry with an id fails inline and is then linked. The code at citygml.rs:1131 is unchanged, so the thread still applies. (1 concern)
Links can reach terrain-intersection curves and TIN triangles, because Targets::of indexes every id in the member. This is unchanged. (1 concern)
The "read at most once per object and level" wording still overclaims for inline duplicates. The link part was addressed, so the thread is outdated, but the wording needs narrowing. (1 concern)
Three earlier concerns were resolved in this push: the seen-mark rollback, the element budget switched to bytes, and the link-budget counting. I checked those against the current code and they hold.
Change size
Compared with main (merge base 4a16da1 to PR head c02a082), the whole PR.
…d too (opengeos#1536)
A face an object read as another face is read again as the ground when a ground surface links to it, so a solid written in place with ground surfaces linking to its faces keeps its ground. An element whose gml:id is blank is still a city object, as before this change.
Bad-coordinates notice overcounts (medium-high confidence, re-raised). A geometry whose coordinates can't be read is counted once where it's written, then again for every link that re-walks it, because walk() takes its marks back on failure. One bad polygon plus one link to it gives a count of 2 for one lost geometry. The reply deferred this to the release quality pass, but a wrong "how much" count falls under the Never-silent rule, so it isn't a quality point. Inline comment posted at crates/data/src/citygml.rs:1155 with a suggested fix and test.
Cavities of a refused exterior link are not separately said (low confidence). When follow refuses a solid's linked exterior on budget, its cavities go with it. The single links_past_limit count covers the link, but not the cavities. I did not verify whether this is intended.
Security
None found in the changed lines. Link resolution is bounded by byte budget, cycles are cut by the seen marks, and chains are followed in a loop, not by recursion.
Performance
None new. The earlier element-count concern is fixed: the budget is now in bytes via Node::range().
Quality
None raised; no quality points beyond the release quality pass.
AGENTS.md
Nothing violated in the changed code. The new budget and notice paths are covered by tests, and object()'s doc says why it doesn't look at Cancel.
Earlier review threads
Two unresolved threads are addressed by the current code and I left them alone. The ground-versus-inline thread (line 1055) is fixed by keying seen on the ground role, covered by a_ground_given_by_a_link_is_the_ground. The blank-gml:id thread (line 523) is fixed by the presence check in is_object, covered by an_object_with_a_blank_id_is_still_one.
Five resolved or outdated threads are fixed in the code and I left them alone.
Total: 7 earlier concerns left alone, 1 re-raised (above).
Change size
Compared with main (merge base 4a16da1 to PR head 2d8add8).
…its links (opengeos#1536)
The innermost geometry with a gml:id whose coordinates can't be read is kept per object and level, and a link to it is left out without counting it again, so the bad-coordinates notice says how many geometries were lost. A link to a readable part of a geometry left out still reads it.
Counters bumped inside a failed walk aren't rolled back (medium confidence). walk() restores bad_coordinates but not said.links, said.curved or said.multi_position_points. A later link re-walks the failed geometry and bumps them again, so the notice can overcount links. Posted inline at crates/data/src/citygml.rs:1170.
Cavities of a solid can be dropped without a notice (low-medium confidence). When the exterior link hits links.failed, follow returns before the cavities are read, and that link isn't counted. The not-found and budget paths do count it. Posted inline at crates/data/src/citygml.rs:1057.
Security
None found. Input is bounded: budgets use saturating_mul and checked subtraction, there are no unchecked indexes, and link chains run in a loop rather than recursion.
Performance
None worth raising. Link cost is charged in bytes against 4× the member's size, the marks prevent repeat reads of the same geometry within an object, and Targets is built only for members that contain href.
Quality (left for the release quality pass)
Walk::geometry mutates the marks inside an if let … && chain (!self.links.mark(...)). Pulling the mark into a separate statement would be easier to read.
The comment "Marked before a link it is is kept" is garbled. The module doc paragraph about "Not read, and said" has a ragged line break.
The test a_linked_ground_stays_the_ground has an inline ground surface, not a linked one. The name is misleading.
AGENTS.md
Checked the never-crash, never-silent, background/Cancel, layering, wasm and docs rules. Cancel is not checked inside the link loop; object() documents this and bounds it by the member size, which the rules allow. No other violations found.
Prior threads: 8 earlier concerns were left alone because they are already raised and answered or fixed. The bad_coordinates overcount is still open; I did not re-raise it. I did not run the tests, because this environment has no shell.
Change size
Compared with main (merge base 4a16da1 to PR head 5a87766).
…ing to one is said too (opengeos#1536)
A walk that fails takes back what it said of its parts, so a link that reads the geometry again doesn't count them twice. A solid whose exterior links to a geometry already left out is counted as lacking a part it needs, as one written in place would be.
linkable (citygml.rs:535) leaves out gml:PolygonPatch, which shape() reads as a face. A link to a patch is reported as "isn't a geometry" and the face is dropped. Suggested fix is in the comment. Medium confidence.
Re-raised from the existing "bad-coordinates overcount" threads, with new information. The per-object failed set (citygml.rs:1057) is created per object, so a geometry lost in a parent object and linked from a nested child is still counted again. The notice overstates the count. Medium confidence.
Low confidence: a repeated gml:id on geometry resolves silently to its first element (citygml.rs:822). No notice is given for the ambiguity.
Low confidence, not posted: a link-only element with an id is marked read when it is walked (citygml.rs:1248). If its pending link is then refused by the budget, a second link to the same element returns early without a count. The notice undercounts by one per extra reference.
Security
No issues found. The new code has no unwrap, expect, indexing or unsafe. Recursion is bounded: links are followed through a queue, and the budget is checked before any walk that reads new bytes.
Performance
No new issues. Link cost is charged in bytes against LINK_READS × member size. Targets is built once per member, only when the member contains href. Cloning Said per walk is cheap because it holds only counters.
Quality
Nit, left for the release quality pass: the test message "1 links (xlink:href) …" has the wrong plural, and the new notice text can take the same change.
AGENTS.md
Compliance is good for the parts I checked. Notices are per kind with counts, both new notices have tests on lossy and clean input, and #![deny] is respected in non-test code. The failed-set gap above is the one place where a "Never silent" count is wrong.
Prior threads: I left alone 9 earlier concerns that are already answered or implemented: budget in bytes, seen rollback, ground re-read, blank gml:id, aggregate re-read, budget refusal count, the failed-cavity count, and the link-to-non-geometry notice. I re-raised one (the overcount), as described above.
Change size
Compared with main (merge base 4a16da1 to PR head 9c42b0e). The whole PR, not the latest push.
…aid once per member, and a repeated geometry id is said (opengeos#1536)
A link to a PolygonPatch reads its face instead of being said as pointing to what isn't a geometry. The geometries whose coordinates can't be read are kept for the whole member, so an object nested in the one that wrote it doesn't count it again. A geometry whose gml:id an earlier element of a member with links has too is counted in a notice: a link to that id reads the first.
A composite holding a lost geometry with a gml:id is counted once per link to it, because failed records only the innermost id. Medium confidence. Inline comment on citygml.rs:1295. This is a residual of the earlier overcount thread, which the fix only covered for a bare polygon.
A solid whose linked exterior was left out is not counted when it has no cavities, since then.is_empty() stands in for "solid exterior". Medium confidence. Inline comment on citygml.rs:1084. The cavity case is counted, so the same loss is counted differently.
The bad-coordinates count depends on document order: a link read first, then the inline geometry, counts 2; the reverse counts 1. Medium-low confidence. Inline comment on citygml.rs:1272.
Security
None found. Link targets are resolved only inside the member, file and network paths are not read, and budgets bound the work.
Performance
No concern. Link work is charged in bytes against 4× the member's size, Targets::of is a no-op without links, and the loop is iterative. Said is cloned per geometry walk, which is negligible.
Quality (left for the release quality pass; not posted inline)
The module doc at citygml.rs:24 has an orphaned line break ("intersection curves,").
Targets::of is passed the <m> wrapper root, so its member parameter name is misleading.
The links_past_limit notice wording ("as they would read their city object member over many times") is awkward.
AGENTS.md
No unwrap, expect, or panic in non-test code. Indexing is via get, and subtractions are guarded by the budget check.
Notices exist for each new loss kind, with counts and tests in both directions.
Cancel: object() documents that it does not look at Cancel and why. This is acceptable because the work is bounded by the member's size.
docs/user-guide/data-formats.md was updated.
Prior reviews: 14 threads. I re-raised three where the answer leaves a case open (the aggregate residual, the no-cavity solid, and order dependence). I left 11 alone: the PolygonPatch, repeated-id, seen-mark, ground, blank-id, performance, budget, and counter threads are fixed in the code, and the terrain-intersection thread was answered as deliberate.
I did not compile or run the tests; these findings come from reading the code.
Change size
Compared with the base branch: the whole PR, merge base 4a16da1 to head d760973.
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Summary
Part of #1536 (step 2b-3: XLinks). The issue promised that
xlink:hrefreferences between geometries are resolved bygml:id, bounded so a reference cycle can't hang the reader. This PR resolves them within a city object member.Most CityGML files write a building's solid as links to the polygons of its walls, roof and ground (
lod2Solid/Solid/exterior/CompositeSurface/surfaceMember xlink:href="#…"). Until now every such link was counted as "left out", although the faces were drawn through the thematic surfaces: a 33 MB sample with 21,971 links said all of them were lost, while 99.5% pointed to faces of the same object. The other 0.5% point to faces of a nestedBuildingInstallation, which were really missing from the building's solid.What the reader does now:
#idto a geometry written in the same member is read where the link stands. Links are followed after the object's own geometries, and those a ground surface makes come first. So a face the object already holds at that level of detail isn't read twice, and a ground face stays the ground's whatever order things are written in.srsDimension.Out of scope, and still said: links between members (implicit geometry prototypes,
consistsOfBuildingPart/groupMemberby link as parent relations). They need an index ofgml:idbyte ranges in the quick-xml pass, and come in the next PR together with implicit geometries. Objects, thematic surfaces, rings, and a line's or ring's points and curves given only by a link stay as they were.Testing
checks.sh: fmt, clippy-D warnings, doctests andcargo xtask layerspass. nextest: 5408 of 5410 pass. The 2 failures are inrustgis-engineand come from the local environment, not this change:geolibre_tools_run_on_layers_and_add_their_outputsneeds the localgeolibreprogram (it failed the same way on every run for feat(data): read CityGML 1.0 and 2.0 city models (#1536) #1616), andreload_reconverts_duckdb_table…is a DuckDB workspace test. This PR touches onlycrates/data/src/citygml*and the docs.rustgis-data: 918 tests pass. 10 new or changed tests incitygml/tests.rs:rustgis-cli infoon real files:UI evidence
No visible UI change.
Related issue
Part of #1536
Summary by CodeRabbit