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Fix #5854. Update docs with new IOS v0.8 settings.

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Dion Moult
2025-01-30 15:32:14 +11:00
parent d6443e46f6
commit 1768026891
5 changed files with 839 additions and 608 deletions
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src/ifcopenshell-python/docs/ifcconvert.rst
+3 -2
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@@ -2,7 +2,8 @@ IfcConvert
==========
IfcConvert is a command-line application for converting IFC geometry into file
formats such as OBJ, DAE, GLB, STP, IGS, XML, SVG, H5, and IFC itself.
formats such as OBJ, DAE, GLB, STP, IGS, XML, SVG, H5, CityJSON, TTL/WKT, and
IFC-SPF itself.
For other formats, you may use other IfcOpenShell utilities as shown in the
table below.
@@ -12,7 +13,7 @@ table below.
+=========================+=========================+======================+
| .ifc | .obj, .dae, .glb, .stp, | IfcConvert |
| | .igs, .xml, .svg, .h5, | |
| | .ifc | |
| | .cityjson, .ttl, .ifc | |
+-------------------------+-------------------------+----------------------+
| .ifc | .dae, .abc, .usd, .obj, | Bonsai_ |
| | .ply, .stl, .fbx, .glb, | |
src/ifcopenshell-python/docs/ifcconvert/usage.rst
+184 -124
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@@ -70,7 +70,7 @@ CLI Manual
$ IfcConvert -h
IfcOpenShell IfcConvert v0.8.0-dc67287d (OCC 7.5.3)
IfcOpenShell IfcConvert 0.8.1-c49ca69 (OCC 7.8.1)
Usage: IfcConvert [options] <input.ifc> [<output>]
Converts (the geometry in) an IFC file into one of the following formats:
@@ -82,6 +82,8 @@ CLI Manual
.xml XML Property definitions and decomposition tree
.svg SVG Scalable Vector Graphics (2D floor plan)
.h5 HDF Hierarchical Data Format storing positions, normals and indices
.cityjson City JSON format for geospatial data
.ttl TTL/WKT RDF Turtle with Well-Known-Text geometry
.ifc IFC-SPF Industry Foundation Classes
If no output filename given, <input>.obj will be used as the output file.
@@ -92,9 +94,6 @@ CLI Manual
--version display version information
-v [ --verbose ] more verbose log messages. Use twice
(-vv) for debugging level.
-d [ --debug ] write boolean operands to file in
current directory for debugging
purposes
-q [ --quiet ] less status and progress output
--cache cache geometry creation. Use
--cache-file to specify cache file
@@ -109,42 +108,10 @@ CLI Manual
--log-file arg redirect log output to file
Geometry options:
--kernel arg (=opencascade) Geometry kernel to use (opencascade,
cgal, cgal-simple).
-j [ --threads ] arg (=1) Number of parallel processing threads
for geometry interpretation.
--plan Specifies whether to include curves in
the output result. Typically these are
representations of type Plan or Axis.
Excluded by default.
--model Specifies whether to include surfaces
and solids in the output result.
Typically these are representations of
type Body or Facetation. Included by
default.
--weld-vertices Specifies whether vertices are welded,
meaning that the coordinates vector
will only contain unique xyz-triplets.
This results in a manifold mesh which
is useful for modelling applications,
but might result in unwanted shading
artefacts in rendering applications.
--use-world-coords Specifies whether to apply the local
placements of building elements
directly to the coordinates of the
representation mesh rather than to
represent the local placement in the
4x3 matrix, which will in that case be
the identity matrix.
--convert-back-units Specifies whether to convert back
geometrical output back to the unit of
measure in which it is defined in the
IFC file. Default is to use meters.
--orient-shells Specifies whether to orient the faces
of IfcConnectedFaceSets. This is a
potentially time consuming operation,
but guarantees a consistent orientation
of surface normals, even if the faces
are not properly oriented in the IFC
file.
--center-model Centers the elements by applying the
center point of all placements as an
offset.Can take several minutes on
@@ -152,26 +119,6 @@ CLI Manual
--center-model-geometry Centers the elements by applying the
center point of all mesh vertices as an
offset.
--model-offset arg Applies an arbitrary offset of form
'x;y;z' to all placements.
--model-rotation arg Applies an arbitrary quaternion
rotation of form 'x;y;z;w' to all
placements.
--disable-opening-subtractions Specifies whether to disable the
boolean subtraction of
IfcOpeningElement Representations from
their RelatingElements.
--disable-boolean-results Specifies whether to disable the
boolean operation within
representations such as clippings by
means of IfcBooleanResult and subtypes
--no-2d-boolean Do not attempt to process boolean
subtractions in 2D.
--enable-layerset-slicing Specifies whether to enable the slicing
of products according to their
associated IfcMaterialLayerSet.
--layerset-first Assigns the first layer material of the
layerset to the complete product.
--include arg Specifies that the instances that match
a specific filtering criteria are to be
included in the geometrical output:
@@ -227,40 +174,159 @@ CLI Manual
inserted on their own lines. See
--include, --include+, --exclude, and
--exclude+ for more details.
--no-normals Disables computation of normals. Saves
--default-material-file arg Specifies a material file that
describes the material object types
will haveif an object does not have any
specified material in the IFC file.
--exterior-only [=arg(=minkowski-triangles)] (=none)
Export only the exterior shell of the
building found by geometric analysis.
convex-decomposition,
minkowski-triangles or
halfspace-snapping
--plan Specifies whether to include curves in
the output result. Typically these are
representations of type Plan or Axis.
Excluded by default.
--model Specifies whether to include surfaces
and solids in the output result.
Typically these are representations of
type Body or Facetation.
--mesher-linear-deflection arg (= 0.001)
Specifies the linear deflection of the
mesher. Controls the detail of curved
surfaces in triangulated output
formats.
--mesher-angular-deflection arg (= 0.5)
Sets the angular tolerance of the
mesher in radians 0.5 by default if not
specified.
--reorient-shells Specifies whether to orient the faces
of IfcConnectedFaceSets. This is a
potentially time consuming operation,
but guarantees a consistent orientation
of surface normals, even if the faces
are not properly oriented in the IFC
file.
--length-unit arg (= 1)
--angle-unit arg (= 1)
--precision arg (= 1e-05)
--dimensionality arg (= 1) Specifies whether to include curves
and/or surfaces and solids in the
output result. Defaults to only
surfaces and solids.
--layerset-first Assigns the first layer material of the
layerset to the complete product.
--disable-boolean-result Specifies whether to disable the
boolean operation within
representations such as clippings by
means of IfcBooleanResult and subtypes
--no-wire-intersection-check Skip wire intersection check.
--no-wire-intersection-tolerance arg (= 0)
Set wire intersection tolerance to 0.
--precision-factor arg (= 1) Option to increase linear tolerance for
more permissive edge curves and fewer
artifacts after boolean operations at
the expense of geometric detail due to
vertex collapsing and wire intersection
fuzziness.
--debug write boolean operands to file in
current directory for debugging
purposes
--boolean-attempt-2d Do not attempt to process boolean
subtractions in 2D.
--surface-colour Prioritizes the surface color instead
of using diffuse.
--weld-vertices Specifies whether vertices are welded,
meaning that the coordinates vector
will only contain unique xyz-triplets.
This results in a manifold mesh which
is useful for modelling applications,
but might result in unwanted shading
artefacts in rendering applications.
--use-world-coords Specifies whether to apply the local
placements of building elements
directly to the coordinates of the
representation mesh rather than to
represent the local placement in the
4x3 matrix, which will in that case be
the identity matrix.
--unify-shapes Unify adjacent co-planar and co-linear
subshapes (topological entities sharing
the same geometric domain) before
triangulation or further processing
--use-material-names Use material names instead of unique
IDs for naming materials upon
serialization. Applicable for OBJ and
DAE output.
--convert-back-units Specifies whether to convert back
geometrical output back to the unit of
measure in which it is defined in the
IFC file. Default is to use meters.
--context-ids arg
--context-ids arg
--context-ids arg
--iterator-output arg (= 0)
--disable-opening-subtractions Specifies whether to disable the
boolean subtraction of
IfcOpeningElement Representations from
their RelatingElements.
--apply-default-materials
--no-normals Disables computation of normals.Saves
time and file size and is useful in
instances where you're going to
recompute normals for the exported
model in other modelling application in
any case.
--deflection-tolerance arg (=0.001) Sets the deflection tolerance of the
mesher, 1e-3 by default if not
specified.
--force-space-transparency arg Overrides transparency of spaces in
geometry output.
--angular-tolerance arg (=0.5) Sets the angular tolerance of the
mesher in radians 0.5 by default if not
specified.
--generate-uvs Generates UVs (texture coordinates) by
using simple box projection. Requires
normals. Not guaranteed to work
properly if used with --weld-vertices.
--default-material-file arg Specifies a material file that
describes the material object types
will haveif an object does not have any
specified material in the IFC file.
--enable-layerset-slicing Specifies whether to enable the slicing
of products according to their
associated IfcMaterialLayerSet.
--element-hierarchy Assign the elements using their e.g
IfcBuildingStorey parent.Applicable to
DAE output.
--validate Checks whether geometrical output
conforms to the included explicit
quantities.
--no-wire-intersection-check Skip wire intersection check.
--no-wire-intersection-tolerance Set wire intersection tolerance to 0.
--strict-tolerance Use exact tolerance from model. Default
is a 10 times increase for more
permissive edge curves and fewer
artifacts after boolean operations at
the expense of geometric detail due to
vertex collapsing and wire intersection
fuzziness.
--edge-arrows Adds arrow heads to edge segments to
signify edge direction
--building-local-placement Similar to --site-local-placement, but
placing elements in locally in the
parent IfcBuilding coord system
--site-local-placement Place elements locally in the IfcSite
coordinate system, instead of placing
them in the IFC global coords.
Applicable for OBJ, DAE, and STP
output.
--force-space-transparency arg Overrides transparency of spaces in
geometry output.
--circle-segments arg (= 16) Number of segments to approximate full
circles in CGAL kernel.
--keep-bounding-boxes Default is to removes IfcBoundingBox
from model prior to converting
geometry.Setting this option disables
that behaviour
--function-step-type arg (= 0) Indicates the method used for defining
step size when evaluating
function-based curves. Provides
interpretation of function-step-param
--function-step-param arg (= 0.5) Indicates the parameter value for
defining step size when evaluating
function-based curves.
--no-parallel-mapping Perform mapping upfront
(single-threaded) as opposed to in
parallel. May decrease performance, but
also decrease output size (in the
future)
--model-offset arg Applies an arbitrary offset of form
'x,y,z' to all placements.
--model-rotation arg Applies an arbitrary quaternion
rotation of form 'x,y,z,w' to all
placements.
--triangulation-type arg (= 0) Type of planar facet to be emitted
Serialization options:
--bounds arg Specifies the bounding rectangle, for
@@ -296,6 +362,10 @@ CLI Manual
data-guid
--svg-poly Uses the polygonal algorithm for hidden
line rendering
--svg-prefilter Prefilter faces and shapes before
feeding to HLR algorithm
--svg-segment-projection Segment result of projection wrt
original products
--svg-write-poly Approximate every curve as polygonal in
SVG output
--svg-project Always enable hidden line rendering
@@ -310,47 +380,6 @@ CLI Manual
--section-height-from-storeys Derives section height from storey
elevation. Use --section-height to
override default offset of 1.2
--use-element-names Use entity instance IfcRoot.Name
instead of unique IDs for naming
elements upon serialization. Applicable
for OBJ, DAE, and SVG output.
--use-element-guids Use entity instance IfcRoot.GlobalId
instead of unique IDs for naming
elements upon serialization. Applicable
for OBJ, DAE, and SVG output.
--use-element-numeric-ids Use the numeric step identifier (entity
instance name) for naming elements upon
serialization. Applicable for OBJ, DAE,
and SVG output.
--use-material-names Use material names instead of unique
IDs for naming materials upon
serialization. Applicable for OBJ and
DAE output.
--use-element-types Use element types instead of unique IDs
for naming elements upon serialization.
Applicable for DAE output.
--use-element-hierarchy Order the elements using their
IfcBuildingStorey parent. Applicable
for DAE output.
--site-local-placement Place elements locally in the IfcSite
coordinate system, instead of placing
them in the IFC global coords.
Applicable for OBJ and DAE output.
--y-up Change the 'up' axis to positive Y,
default is Z UP, Applicable for OBJ
output.
--building-local-placement Similar to --site-local-placement, but
placing elements in locally in the
parent IfcBuilding coord system
--precision arg (=15) Sets the precision to be used to format
floating-point values, 15 by default.
Use a negative value to use the
system's default precision (should be 6
typically). Applicable for OBJ and DAE
output. For DAE output, value >= 15
means that up to 16 decimals are used,
and any other value means that 6 or 7
decimals are used.
--print-space-names Prints IfcSpace LongName and Name in
the geometry output. Applicable for SVG
output
@@ -359,6 +388,37 @@ CLI Manual
output
--space-name-transform arg Additional transform to the space
labels in SVG
--edge-arrows Adds arrow heads to edge segments to
signify edge direction
--use-element-names Use entity instance IfcRoot.Name
instead of unique IDs for naming
elements upon serialization. Applicable
for OBJ, DAE, STP, and SVG output.
--use-element-guids Use entity instance IfcRoot.GlobalId
instead of unique IDs for naming
elements upon serialization. Applicable
for OBJ, DAE, STP, and SVG output.
--use-element-step-ids Use the numeric step identifier (entity
instance name) for naming elements upon
serialization. Applicable for OBJ, DAE,
STP, and SVG output.
--use-element-types Use element types instead of unique IDs
for naming elements upon serialization.
Applicable to DAE output.
--y-up Change the 'up' axis to positive Y,
default is Z UP. Applicable to OBJ
output.
--ecef Write glTF in Earth-Centered
Earth-Fixed coordinates. Requires PROJ.
--digits arg (= 15) Sets the precision to be used to format
floating-point values, 15 by default.
Use a negative value to use the
system's default precision (should be 6
typically). Applicable for OBJ and DAE
output. For DAE output, value >= 15
means that up to 16 decimals are used,
and any other value means that 6 or 7
decimals are used.
--base-uri arg Base URI for products to be used in
RDF-based serializations.
--wkt-use-section Use a geometrical section rather than
full polyhedral output and footprint in
TTL WKT
src/ifcopenshell-python/docs/ifcopenshell-python/geometry_processing.rst
+13 -12
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@@ -128,7 +128,7 @@ Alternatively, you may choose to retrieve an OpenCASCADE BRep:
element = ifc_file.by_type('IfcWall')[0]
settings = ifcopenshell.geom.settings()
settings.set(settings.USE_PYTHON_OPENCASCADE, True)
settings.set("use-python-opencascade", True)
try:
shape = geom.create_shape(settings, element)
@@ -301,6 +301,9 @@ Here is a typical example to serialising to glTF / glb. Example settings to
serialise to other formats are shown commented out. Different serialisations
may require different settings.
In addition to geometry settings, serialisation has its own set of
:doc:`../ifcopenshell/serialiser_settings`.
.. code-block:: python
import ifcopenshell
@@ -310,25 +313,23 @@ may require different settings.
settings = ifcopenshell.geom.settings()
# Settings for glTF / glb
settings.set(settings.STRICT_TOLERANCE, True)
settings.set(settings.INCLUDE_CURVES, True)
# Setting element GUIDs is optional, but useful to uniquely identify objects in non-semantic formats.
settings.set(settings.USE_ELEMENT_GUIDS, True)
settings.set("dimensionality", ifcopenshell.ifcopenshell_wrapper.CURVES_SURFACES_AND_SOLIDS)
# Note that applying default materials is required in glTF serialisation.
settings.set(settings.APPLY_DEFAULT_MATERIALS, True)
settings.set("apply-default-materials", True)
# Settings for obj
# settings.set(settings.STRICT_TOLERANCE, True)
# settings.set(settings.INCLUDE_CURVES, True)
# settings.set(settings.USE_ELEMENT_GUIDS, True)
# settings.set(settings.APPLY_DEFAULT_MATERIALS, True)
# settings.set(settings.USE_WORLD_COORDS, True)
# settings.set("dimensionality", ifcopenshell.ifcopenshell_wrapper.CURVES_SURFACES_AND_SOLIDS)
# settings.set("apply-default-materials", True)
# settings.set("use-world-coords", True)
# Serialise to glTF / glb
serialiser = ifcopenshell.geom.serializers.gltf("output.glb", settings)
self.serialiser_settings = ifcopenshell.geom.serializer_settings()
# Setting element GUIDs is optional, but useful to uniquely identify objects in non-semantic formats.
serialiser_settings.set("use-element-guids", True)
# Serialise to obj
# serialiser = ifcopenshell.geom.serializers.obj('output.obj', 'output.mtl', settings)
# serialiser = ifcopenshell.geom.serializers.obj('output.obj', 'output.mtl', settings, serialiser_settings)
serialiser.setFile(self.file)
serialiser.setUnitNameAndMagnitude("METER", 1.0)
src/ifcopenshell-python/docs/ifcopenshell.rst
+1
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@@ -24,4 +24,5 @@ possible at compile-time when using C++ and at run-time when using Python.
ifcopenshell/getting_started
ifcopenshell/geometry_iterator
ifcopenshell/geometry_settings
ifcopenshell/serialiser_settings
ifcopenshell/boolean_process
src/ifcopenshell-python/docs/ifcopenshell/geometry_settings.rst
+638 -470
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