CPGeomConcrete#

class concreteproperties.pre.CPGeomConcrete(geom: Polygon, material: Concrete)[source]#

Bases: CPGeom

A concreteproperties Geometry object for concrete geometries.

Methods

`calculate_area`	Calculates the area of the geometry.
`calculate_centroid`	Calculates the centroid of the geometry.
`calculate_extents`	Calculates the extents of the geometry.
`create_facets`	Generates a list of facets given a list of points and a facet offset.
`create_line_segment`	Creates a `shapely` line.
`create_points_and_facets`	Creates a list of points and facets from a shapely polygon.
`plot_geometry`	Plots the geometry.
`round_geometry`	Rounds the coordinates in `geometry` to tolerance `tol`.
`sort_polys`	Sorts polygons that are above and below the line.
`split_section`	Splits the geometry about a line.
`to_sp_geom`	Converts self to a sectionproperties geometry object.

__init__(geom: Polygon, material: Concrete) → None[source]#

Inits the CPGeomConcrete class.

Parameters:

geom (Polygon) – Shapely polygon defining the geometry
material (Concrete) – Material to apply to the geometry

calculate_area() → float#

Calculates the area of the geometry.

Returns:: Geometry area
Return type:: float

calculate_centroid() → tuple[float, float]#

Calculates the centroid of the geometry.

Returns:: Geometry centroid
Return type:: tuple[float, float]

calculate_extents() → tuple[float, float, float, float]#

Calculates the extents of the geometry.

Calculates the minimum and maximum x and y values among the points describing the geometry.

Returns:: Extents (x_min, x_max, y_min, y_max)
Return type:: tuple[float, float, float, float]

create_facets(points_list: list[tuple[float, float]], offset: int = 0) → list[tuple[int, int]]#

Generates a list of facets given a list of points and a facet offset.

Parameters:

points_list (list[tuple[float, float]]) – List of ordered points to create facets from
offset (int) – Facet offset integer

Returns:

List of facets

Return type:

list[tuple[int, int]]

create_line_segment(point: tuple[float, float], vector: tuple[float, float], bounds: tuple[float, float, float, float]) → LineString#

Creates a shapely line.

Creates a shapely line string defined by a point and vector and bounded by bounds.

Parameters:

point (tuple[float, float]) – Point on line
vector (tuple[float, float]) – Vector defining direction of line
bounds (tuple[float, float, float, float]) – Bounds of the geometry

Returns:

Shapely line string

Return type:

LineString

create_points_and_facets(geometry: Polygon) → tuple[list[tuple[float, float]], list[tuple[int, int]]]#

Creates a list of points and facets from a shapely polygon.

Parameters:: geometry (Polygon) – Shapely polygon from which to create points and facets
Returns:: Points and facets
Return type:: tuple[list[tuple[float, float]], list[tuple[int, int]]]

plot_geometry(title: str = 'Cross-Section Geometry', **kwargs) → matplotlib.axes.Axes#

Plots the geometry.

Parameters:

title (str) – Plot title
kwargs – Passed to plot_geometry()

Returns:

Matplotlib axes object

Return type:

matplotlib.axes.Axes

round_geometry(geometry: Polygon, tol: int) → Polygon#

Rounds the coordinates in geometry to tolerance tol.

Parameters:

geometry (Polygon) – Geometry to round
tol (int) – Number of decimal places to round

Returns:

Rounded geometry

Return type:

Polygon

sort_polys(polys: list[Polygon], point: tuple[float, float], vector: tuple[float, float]) → tuple[list[Polygon], list[Polygon]]#

Sorts polygons that are above and below the line.

Parameters:

polys (list[Polygon]) – Polygons to sort
point (tuple[float, float]) – Point on line
vector (tuple[float, float]) – Vector defining direction of line

Returns:

Polygons above and below the line

Return type:

tuple[list[Polygon], list[Polygon]]

split_section(point: tuple[float, float], theta: float) → tuple[list[CPGeom], list[CPGeom]]#

Splits the geometry about a line.

Parameters:

point (tuple[float, float]) – Point on line
theta (float) – Angle line makes with horizontal axis

Returns:

Geometries above and below the line

Return type:

tuple[list[CPGeom], list[CPGeom]]

to_sp_geom() → Geometry#

Converts self to a sectionproperties geometry object.

Returns:: sectionproperties geometry object
Return type:: Geometry