warp.fem.geometry.DeformedGeometry#

class warp.fem.geometry.DeformedGeometry(field, relative=True, build_bvh=False)[source]#
Parameters:

  • field (wp.fem.GeometryField)

  • relative (bool)

  • build_bvh (bool)

__init__(field, relative=True, build_bvh=False)[source]#

Constructs a Deformed Geometry from a displacement or absolute position field defined over a base geometry. The deformation field does not need to be isoparameteric.

See also: warp.fem.GeometryField.make_deformed_geometry()

Parameters:

Methods

__init__(field[, relative, build_bvh])

Constructs a Deformed Geometry from a displacement or absolute position field defined over a base geometry.

boundary_side_count()

Number of boundary sides (sides with a single neighbour cell) in the geometry

boundary_side_index(args, boundary_side_index)

Device function returning the side index corresponding to a boundary side

build_bvh([device])

Rebuilds the geometry's Bounding Volume Hierarchy (BVH) for device from scratch.

bvh_id(device)

cell_arg_value(device)

cell_count()

Number of cells in the geometry

cell_deformation_gradient(args, s)

Device function returning the transpose of the gradient of world position with respect to reference cell

cell_inverse_deformation_gradient(args, s)

Device function returning the matrix right-transforming a gradient w.r.t.

cell_measure(args, s)

Device function returning the measure determinant (e.g. volume, area) at a given point.

cell_normal(args, s)

Device function returning the element normal at a sample point.

cell_position(args, s)

Device function returning the world position of a cell sample point

fill_cell_arg(args, device)

fill_side_arg(args, device)

fill_side_index_arg(args, device)

Fill the arguments to be passed to side-related device functions

make_filtered_cell_lookup([filter_func])

reference_cell()

Prototypical element for a cell

reference_side()

Prototypical element for a side

side_arg_value(device)

side_count()

Number of sides in the geometry

side_deformation_gradient(args, s)

Device function returning the gradient of world position with respect to reference side

side_from_cell_coords(args, side_index, ...)

Device function converting coordinates on a cell to coordinates on a side, or OUTSIDE

side_index_arg_value(device)

side_inner_cell_coords(args, side_index, ...)

Device function returning the coordinates of a point on a side in the inner cell

side_inner_cell_index(args, side_index)

Device function returning the inner cell index for a given side

side_inner_inverse_deformation_gradient(...)

Device function returning the matrix right-transforming a gradient w.r.t.

side_measure(args, s)

Device function returning the measure determinant (e.g. volume, area) at a given point.

side_measure_ratio(args, s)

Device function returning the ratio of the measure of a side to that of its neighbour cells

side_normal(args, s)

Device function returning the element normal at a sample point

side_outer_cell_coords(args, side_index, ...)

Device function returning the coordinates of a point on a side in the outer cell

side_outer_cell_index(args, side_index)

Device function returning the outer cell index for a given side

side_outer_inverse_deformation_gradient(...)

Device function returning the matrix right-transforming a gradient w.r.t.

side_position(args, s)

Device function returning the side position at a sample point

side_to_cell_arg(side_arg)

Device function converting a side-related argument value to a cell-related argument value, for promoting trace samples to the full space

supports_cell_lookup(device)

update_bvh([device])

Refits the geometry's BVH if it exists on device, or builds it from scratch otherwise.

Attributes

base

cell_dimension

Manifold dimension of the geometry cells

cell_lookup

cell_measure_ratio

dimension

name

CellArg

Structure containing arguments to be passed to device functions evaluating cell-related quantities

SideArg

Structure containing arguments to be passed to device functions evaluating side-related quantities

SideIndexArg

Structure containing arguments to be passed to device functions for indexing sides
property name: str[source]#
property base: Geometry[source]#
fill_cell_arg(args, device)[source]#
Parameters:

args (DeformedGeometry.CellArg)

fill_side_arg(args, device)[source]#
Parameters:

args (DeformedGeometry.SideArg)