This set of changes covers all triangulation errors in issue 693. A point coincident with a triangle vertex is OK and needed for bridges, but sometimes the middle point has edges cutting through the triangle that make it a non-ear. We fix that and a couple of off-by-one error (that fixes one of the test cases).
This is the last long-running single-threaded part of the boolean code. On one test model this took Regenerate form 27 seconds down to 18s. The critical sections needed a name (into) because that object must not be modified while in use in different places.
VectorFileWriter::Background() is an empty impl, except that it writes
* a rectangle the size of the output for EPS and PDF, and
* a <style> element setting background-color for SVG
Ref: #525
The 3-plane intersection code fails to converge when a curve joins two tangent NURBS patches. This adds a new function for intersecting exact curves with a surface to avoid those failures. Fixes simplified test model for issue #315.
This allows the selection to reach through entities to their corresponding ones on the underlying sketch which can be dragged if they are not fully constrained. This is decided in a new function Entity::CanBeDragged().
Create a new copy type for faces that includes the translation aspect of helical extrusions. Also swap the end remappings when the shell is inside out - this was also affecting some Revolve extrusions.
* Add a link to its request, unless it's the first entity in that
request (which would just select the same entity again).
* Add a link to its group.
* Add a link to its workplane.
* Add a link to its style; and hide the style row for entities that
aren't stylable.
* Show constraints and measurements (reference constraints) in
separate lists.
* For curve entities, show constraints that apply to the points
related to the curve, not just to the curve itself.
* Show the type of a constraint.
* Show the workplane a constraint is in, for constraints which can
be both projected to workplane or be free in 3d space.
* Clearly distinguish reference from non-reference constraints.
* Add a checkbox for toggling the reference option.
* When showing requests a constraint applies to, highlight on hover
the specific entity being constrained, not just the first one.
This has been completely broken since 2018 (commit a93283df), and no
one noticed, so it probably wasn't useful. Instead of fixing it, just
drop the feature and a bunch of odd nonportable code.
Turning a reference dimension into a constraint one can make
the sketch unsolvable, which suggests Edit → Undo, which would undo
either too much or nothing at all.
The mimalloc temporary heap is a thread-local object that uses RAII
to manage heap lifetimes even in threads that are created implicitly,
e.g. by OpenMP. However, not all threads are necessarily created by
the application; graphics drivers may create their own threads, and
this can lead to deadlocks when combined with library unloading.
Fixes#657.
The heaps are wrapped in a RAIIish thread_local handler,
since being affined affined to a single thread for allocations is
required by the API
Ref: #642
Resolve issue #489 helix has stairsteps.
Force helix axis line to 8 segments.
Grid triangulation to use a minimum of 4 segments for degree>1.
Adds twist dependence for grid triangulation with degree=1.
Added a max_dt parameter for PWL creation and use that for helical edges.
This is unfortunate, but OpenMP is not available on some toolchains
(most MinGW builds) and, more importantly, breaks the distribution
model we use on Windows, which is a single self-contained executable.
Leave the OpenMP disabled by default everywhere so that we don't have
any second-class platforms where SolveSpace is slower than on first-
class ones.
Fixes#631.
The counter was added solely as a debug feature in commit e7c8c1c8,
which introduced the new Canvas system. It doesn't work all that well
and brings little value, so let's get rid of the visual noise.
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