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Dimension tool: linear dimensions measure horizontally, vertically or aligned - #6494
A linear dimension between two clicked points, or dragged out from a segment, always measured the straight distance between its points, so two points at different heights gave only a slanted dimension. The linear dimensions help describes aligned, horizontal and vertical linear dimensions: after the second click, clicking again gives an aligned dimension and moving the pointer gives a horizontal or vertical one. It also says that the horizontal and vertical measurements of a rotated object adjust to the new distances.
This changes the existing placement: after the second click, or while dragging out from a segment, moving the pointer past either point now gives a horizontal or vertical dimension where it gave an aligned one before.
Which orientation a pointer position gives is VectorCraft's own rule:
With the pointer beside the two points (the nearest point of the line through them lies between them) or on that line, the dimension is aligned.
Past either point, the line through the points and the perpendicular through that point bound a quarter on each side of the line. The quarter that holds the direction straight up or down gives the horizontal distance, and the quarter that holds the direction straight left or right gives the vertical distance.
A click within 8 pixels of the second point, or of where the pointer was for the second click, places an aligned dimension.
Two points on one horizontal or vertical line always give an aligned dimension.
The dimension stays linked to the anchors it measures. A horizontal or vertical dimension keeps its orientation when it or the art turns and shows the new distance, or 0 when its points come into line across its axis. A dimension line that lay outside the points stays outside them after a turn.
dimension.create and dimension.update take orientation (aligned, horizontal or vertical, linear dimensions only; any other value is an error). A new orientation keeps the line on the side of the points it was on, and an update that changes nothing records no undo step. Files without the field open as aligned. The hint bar names the two-click placement, with a row in each catalog. docs/dimensions.md describes the rule and the offset direction for each orientation.
The branch merges cleanly with main at 7ea056c7bd. Open #1931 also changes the dimension files; git merge-tree of #1931 with this branch lists the same conflicts as with main.
How it was tested
New tests:
the_pointer_chooses_aligned_horizontal_or_vertical (tools): the rule for lines rising and falling to the right, points in both orders, pointers on the line, and level, upright and equal points.
two_points_measure_horizontally_vertically_or_aligned, a_segment_drag_measures_horizontally_vertically_or_aligned and points_on_a_vertical_line_measure_aligned: the tool's clicks and drags, the labels, and the link to the anchors when the art is scaled.
clicking_again_by_the_second_point_places_an_aligned_dimension: a third click 2.2 pt past a free second point, and one beside a second point that Shift moved about 21 pt from the pointer.
horizontal_and_vertical_dimensions_draw_lines_along_their_axis: the ends of the dimension and extension lines.
turned_horizontal_dimensions_stay_horizontal, a_linked_horizontal_dimension_keeps_its_gap_from_turned_art, a_linked_horizontal_dimension_below_or_between_its_points_follows_turned_art and a_reflected_horizontal_dimension_keeps_its_line_on_the_reflected_side: the line after turns, scaling and a reflection, linked and unlinked.
dimension_orientation_is_checked, a_turned_dimension_keeps_its_line_on_its_side and a_dimension_without_an_orientation_reads_as_aligned: the command parameters, bad values (one linear and one angular dimension together included) leaving the document unchanged, no undo step for an unchanged update, and recipes without the field.
Each new test except points_on_a_vertical_line_measure_aligned and a_dimension_without_an_orientation_reads_as_aligned fails with the change it covers removed.
Commands run on ed17e8fc17, based on main at e2070f7de0:
No panics in shipped code: no unwrap(), expect(), panic!, unreachable!, todo! or unimplemented! outside tests, and no unchecked indexing on data from files, parameters or
messages. Errors are returned as Result and shown to the user
(why and how).
Clean-room: nothing copied from Adobe products or GPL/AGPL code (AGENTS.md).
Every new asset has a row in ASSETS.md.
Summary by CodeRabbit
New Features
Linear dimensions can now be aligned, horizontal, or vertical. Choose an orientation by positioning the pointer when placing a dimension, or change it later.
Dimension measurements and labels follow the selected orientation. Dimension lines retain their placement relative to measured artwork as it moves or transforms.
Bug Fixes
Unchanged dimension updates no longer create unnecessary undo steps, and invalid updates leave the document unchanged.
Documentation
Updated the dimension tool guidance and documentation with orientation, placement, and update behavior.
… aligned
A linear dimension between two clicked points, or dragged out from a
segment, always measured the straight distance between its points and
drew its line parallel to them, so two points at different heights gave
only a slanted dimension. The linear dimensions help describes aligned,
horizontal and vertical linear dimensions: after the second click,
clicking again gives an aligned one and moving the pointer gives a
horizontal or vertical one.
https://helpx.adobe.com/illustrator/desktop/measure-and-align/plot-and-measure/plot-linear-dimensions-of-objects.html
While a linear dimension is being placed, the pointer's position sets
whether it is aligned, horizontal or vertical. The rule is VectorCraft's
own. With the pointer beside the two points (the nearest point of the
line through them lies between them) or on that line, the dimension is
aligned. Past either point, the line through the points and the
perpendicular through that point bound a quarter on each side of the
line. The quarter that holds the direction straight up or down gives
the horizontal distance, and the quarter that holds the direction
straight left or right gives the vertical distance. A click within
reach of the second point, or of where the pointer was for the second
click, places it aligned. Points on one horizontal or vertical line
give an aligned dimension. The dimension stays linked to the anchors it
measures.
- Dimension recipes carry an orientation (aligned by default; files
without it open as before). The line runs along the axis, and each
extension line runs from its point to it.
- dimension.create and dimension.update take orientation: aligned,
horizontal or vertical, for linear dimensions only. Any other value
is an error. A new orientation keeps the line on the side of the
points it was on, and an update that changes nothing records no
undo step.
- A horizontal or vertical dimension keeps its orientation when it or
the art it measures turns, and shows 0 when its points come into line
across its axis. A line that lay outside the points stays outside
them after a turn.
- The hint bar names the two-click placement.
Docs: docs/dimensions.md, the Evidence list in docs/target-app-parity.md.
Linear dimensions now support aligned, horizontal, and vertical orientations. Pointer placement can select an orientation, and the model, commands, renderer, tests, and documentation handle the corresponding measurements and line placement.
Changes: Linear Dimension Orientation
Layer / File(s)
Summary
Orientation model and geometry crates/doc/src/dimension.rs
The dimension model stores orientation and calculates linear measurements, line endpoints, offsets, and labels from that orientation. It preserves line placement in applicable orientation changes and transforms.
Placement and command integration crates/tools/src/dimension.rs, crates/engine/src/cmd/dimension.rs, crates/ui-egui/src/chrome/hints.rs
The tool selects orientation from pointer placement. Create and update commands accept orientation for linear dimensions, reject unsupported values or non-linear orientations, and skip unchanged updates. Rendering uses oriented endpoints and extension lines.
Behavior validation and documentation crates/engine/tests/it/dimensions.rs, docs/dimensions.md, docs/target-app-parity.md
Tests cover placement, geometry, transforms, serialization, validation, and undo behavior. Documentation describes orientation selection and command options.
sequenceDiagram
participant User
participant DimensionTool
participant Dimension
participant Renderer
User->>DimensionTool: Pick anchors and move placement pointer
DimensionTool->>Dimension: Set orientation from pointer position
Renderer->>Dimension: Read direction, line endpoints, and measurement
Dimension-->>Renderer: Return oriented geometry and measurement
Loading
Possibly related issues
Dimension Tool – Expand and Positioning Issues #5590: The issue asks for dimension lines on different sides and at different angles. This change adds pointer-selected aligned, horizontal, and vertical placement; the issue’s separate movement and smart-guide reports are not addressed here.
Suggested reviewers:osamaamin2011, aiongg
Merge Risk: Minimal · up to ed17e
This adds aligned, horizontal and vertical placement for linear dimensions, with commands, rendering, hints and documentation updated to match. No concrete merge-blocking risk was found in the supplied material.
Pre-merge checks: 4 · 1
Failed checks: 1 warning
Check name
Status
Explanation
Resolution
Docstring Coverage
Docstring coverage is 62.50% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documenta…
Write docstrings for the functions missing them to satisfy the coverage threshold.
Passed checks: 4 passed
Check name
Status
Explanation
Title check
The title clearly summarizes the main change: linear dimensions can measure horizontally, vertically, or aligned.
Description check
The description includes the required What and why, How it was tested, and Checklist sections. It explains the change and reports tests and checks. The full cargo xtask ci check remains unchecked.
Linked Issues check
Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check
Check skipped because no linked issues were found for this pull request.
Full details: Docstring Coverage
Explanation
Docstring coverage is 62.50% which is insufficient. 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 24 functions across 5 files. (2 skipped: 2 unsupported.)
Resolution
Write docstrings for the functions missing them to satisfy the coverage threshold.
Finishing Touches
Generate unit tests (beta)
Create a new PR
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Prompt to fix all issues
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
minimal, and validate.
Failed pre-merge checks:
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Write docstrings for the functions missing them to satisfy the coverage
threshold.
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Reviewing files that changed from the base of the PR and between afab109 and ed17e8f.
Files ignored due to path filters: 27
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Files selected for processing: 7
crates/doc/src/dimension.rs
crates/engine/src/cmd/dimension.rs
crates/engine/tests/it/dimensions.rs
crates/tools/src/dimension.rs
crates/ui-egui/src/chrome/hints.rs
docs/dimensions.md
docs/target-app-parity.md
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What and why
A linear dimension between two clicked points, or dragged out from a segment, always measured the straight distance between its points, so two points at different heights gave only a slanted dimension. The linear dimensions help describes aligned, horizontal and vertical linear dimensions: after the second click, clicking again gives an aligned dimension and moving the pointer gives a horizontal or vertical one. It also says that the horizontal and vertical measurements of a rotated object adjust to the new distances.
This changes the existing placement: after the second click, or while dragging out from a segment, moving the pointer past either point now gives a horizontal or vertical dimension where it gave an aligned one before.
Which orientation a pointer position gives is VectorCraft's own rule:
The dimension stays linked to the anchors it measures. A horizontal or vertical dimension keeps its orientation when it or the art turns and shows the new distance, or 0 when its points come into line across its axis. A dimension line that lay outside the points stays outside them after a turn.
dimension.createanddimension.updatetakeorientation(aligned,horizontalorvertical, linear dimensions only; any other value is an error). A new orientation keeps the line on the side of the points it was on, and an update that changes nothing records no undo step. Files without the field open as aligned. The hint bar names the two-click placement, with a row in each catalog.docs/dimensions.mddescribes the rule and theoffsetdirection for each orientation.The branch merges cleanly with
mainat7ea056c7bd. Open #1931 also changes the dimension files;git merge-treeof #1931 with this branch lists the same conflicts as withmain.How it was tested
New tests:
the_pointer_chooses_aligned_horizontal_or_vertical(tools): the rule for lines rising and falling to the right, points in both orders, pointers on the line, and level, upright and equal points.two_points_measure_horizontally_vertically_or_aligned,a_segment_drag_measures_horizontally_vertically_or_alignedandpoints_on_a_vertical_line_measure_aligned: the tool's clicks and drags, the labels, and the link to the anchors when the art is scaled.clicking_again_by_the_second_point_places_an_aligned_dimension: a third click 2.2 pt past a free second point, and one beside a second point that Shift moved about 21 pt from the pointer.horizontal_and_vertical_dimensions_draw_lines_along_their_axis: the ends of the dimension and extension lines.turned_horizontal_dimensions_stay_horizontal,a_linked_horizontal_dimension_keeps_its_gap_from_turned_art,a_linked_horizontal_dimension_below_or_between_its_points_follows_turned_artanda_reflected_horizontal_dimension_keeps_its_line_on_the_reflected_side: the line after turns, scaling and a reflection, linked and unlinked.dimension_orientation_is_checked,a_turned_dimension_keeps_its_line_on_its_sideanda_dimension_without_an_orientation_reads_as_aligned: the command parameters, bad values (one linear and one angular dimension together included) leaving the document unchanged, no undo step for an unchanged update, and recipes without the field.Each new test except
points_on_a_vertical_line_measure_alignedanda_dimension_without_an_orientation_reads_as_alignedfails with the change it covers removed.Commands run on
ed17e8fc17, based onmainate2070f7de0:cargo fmt --all -- --checkcargo check --workspace --testscargo clippy -p vectorcraft-doc -p vectorcraft-engine -p vectorcraft-tools -p vectorcraft-ui-egui --all-targets -- -D warningscargo test -p vectorcraft-doc: 468 passed.cargo test -p vectorcraft-tools: 912 passed, 1 ignored.cargo test -p vectorcraft-engine: 5,807 passed, 2 ignored, in 21 test binaries (theitbinary's 46 dimension tests included).cargo test -p vectorcraft-ui-egui: 3,855 passed, 2 ignored (the i18n and hint-bar tests included).cargo xtask brands,cargo xtask layers,cargo xtask assetsChecklist
cargo xtask cipasses (fmt, clippy, tests, assets, brands, layers, wasm).unwrap(),expect(),panic!,unreachable!,todo!orunimplemented!outside tests, and no unchecked indexing on data from files, parameters ormessages. Errors are returned as
Resultand shown to the user(why and how).
ASSETS.md.Summary by CodeRabbit