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0030342: Modeling Data - Successively trimming surface in both directions lose the first trim

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Added trim for U and V directions when trimming happens sequentially in these directions.
Added possibility to set sense to trim command.
This commit is contained in:
akaftasev
2020-11-02 17:23:14 +03:00
committed by bugmaster
parent e89202ea02
commit c5b42a1afe
6 changed files with 142 additions and 24 deletions
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14
dox/upgrade/upgrade.md
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@@ -2156,3 +2156,17 @@ Message files (with extension .msg) are now expected to be in UTF-8 encoding (un
This allows using arbitrary Unicode symbols for localization of messages.
Existing message files containing 8-bit characters (previously interpreted as characters from Latin-1 code block) should be converted to UTF-8.
@section upgrade_occt760 Upgrade to OCCT 7.6.0
@subsection upgrade_760_trimming_surface Trimming surface
Geom_RectangularTrimmedSurface sequentially trimming in U and V directions already no longer loses the first trim.
For example:
~~~~~
Handle(Geom_RectangularTrimmedSurface) ST = new Geom_RectangularTrimmedSurface (Sbase, u1, u2, Standard_True); // trim along U
Handle(Geom_RectangularTrimmedSurface) ST1 = new Geom_RectangularTrimmedSurface (ST, v1, v2, Standard_False); // trim along V
~~~~~
gives different result.
In current version ST1 - surface trimmed only along V, U trim is removed;
After modification ST1 - surface trimmed along U and V, U trim is kept.

6
dox/user_guides/draw_test_harness/draw_test_harness.md
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@@ -4879,9 +4879,9 @@ bsplinesurf s \
Syntax:
~~~~~
trim newname name [u1 u2 [v1 v2]]
trimu newname name
trimv newname name
trim newname name [u1 u2 [v1 v2] [usense vsense]]
trimu newname name u1 u2 [usense]
trimv newname name v1 v2 [vsense]
~~~~~
The **trim** commands create trimmed curves or trimmed surfaces. Note that trimmed curves and surfaces are classes of the *Geom* package.