## On this page # SamplingPoint Last update: 16.07.2026 ### *class* compolyx.SamplingPoint(graph, obj, parent=None) The sampling point enables picking through the laminate at a certain point to run detailed analyses. Key features: : - Layup in the object tree of the closest element to the selected point. - Sampling direction defines the ply order (bottom-up or top-down). - Reference direction defines the 0 degree axis of the element used for the evaluations (CLT). - Optional a user-defined coordinate system can be selected to compute the reference direction. The element normal and reference direction. defines the result coordinate system. - 2D plots showing the layup, stress, strain and failure distribution through the laminate. - Polar plot of the laminate properties. - Analysis based on the Classical Laminate Theory (CLT). - Export to ESAComp, CSV file, etc. ### Usage ```pycon >>> model.create_sampling_point(name='Sampling Point') ``` ### Attributes NameDescription[`SamplingPoint.active`](compolyx.SamplingPoint.active.md#compolyx.SamplingPoint.active)Active status of the object.[`SamplingPoint.consider_coupling_effect`](compolyx.SamplingPoint.consider_coupling_effect.md#compolyx.SamplingPoint.consider_coupling_effect)Whether to consider coupling effects (B-Matrix) for the calculation of the laminate engineering constants.[`SamplingPoint.direction`](compolyx.SamplingPoint.direction.md#compolyx.SamplingPoint.direction)Sampling point Direction.[`SamplingPoint.element_id`](compolyx.SamplingPoint.element_id.md#compolyx.SamplingPoint.element_id)Element ID (label) of the sampling point.[`SamplingPoint.enabled`](compolyx.SamplingPoint.enabled.md#compolyx.SamplingPoint.enabled)Whether this object is currently enabled.[`SamplingPoint.graph_plot`](compolyx.SamplingPoint.graph_plot.md#compolyx.SamplingPoint.graph_plot)Graph Plot object used to configure 2D plots.[`SamplingPoint.id`](compolyx.SamplingPoint.id.md#compolyx.SamplingPoint.id)ID of the object.[`SamplingPoint.is_dict_item`](compolyx.SamplingPoint.is_dict_item.md#compolyx.SamplingPoint.is_dict_item)Indicates whether the object is an item in a dictionary.[`SamplingPoint.is_list_item`](compolyx.SamplingPoint.is_list_item.md#compolyx.SamplingPoint.is_list_item)Indicates whether the object is an item of a list.[`SamplingPoint.link_path`](compolyx.SamplingPoint.link_path.md#compolyx.SamplingPoint.link_path)Root path of the current node in the tree for links to this object.[`SamplingPoint.locked`](compolyx.SamplingPoint.locked.md#compolyx.SamplingPoint.locked)Sampling point is generated from an imported source and cannot be changed.[`SamplingPoint.name`](compolyx.SamplingPoint.name.md#compolyx.SamplingPoint.name)Name of the object.[`SamplingPoint.offset_is_middle`](compolyx.SamplingPoint.offset_is_middle.md#compolyx.SamplingPoint.offset_is_middle)Whether to offset the reference surface to the mid-plane of the laminate.[`SamplingPoint.parent`](compolyx.SamplingPoint.parent.md#compolyx.SamplingPoint.parent)Parent object in the tree.[`SamplingPoint.plies`](compolyx.SamplingPoint.plies.md#compolyx.SamplingPoint.plies)Plies of the sampling point.[`SamplingPoint.point`](compolyx.SamplingPoint.point.md#compolyx.SamplingPoint.point)Sampling point.[`SamplingPoint.reference_direction`](compolyx.SamplingPoint.reference_direction.md#compolyx.SamplingPoint.reference_direction)Reference direction.[`SamplingPoint.root_path`](compolyx.SamplingPoint.root_path.md#compolyx.SamplingPoint.root_path)Root path of the current node in the tree.[`SamplingPoint.rosette`](compolyx.SamplingPoint.rosette.md#compolyx.SamplingPoint.rosette)Rosette of the sampling point.[`SamplingPoint.solution_set`](compolyx.SamplingPoint.solution_set.md#compolyx.SamplingPoint.solution_set)Solution and Set selection.[`SamplingPoint.status`](compolyx.SamplingPoint.status.md#compolyx.SamplingPoint.status)Status of the object.[`SamplingPoint.status_changed`](compolyx.SamplingPoint.status_changed.md#compolyx.SamplingPoint.status_changed)Boolean flag which is set to true in C++ when up-to-date status of object changes.[`SamplingPoint.uid`](compolyx.SamplingPoint.uid.md#compolyx.SamplingPoint.uid)UID of the object.[`SamplingPoint.use_default_reference_direction`](compolyx.SamplingPoint.use_default_reference_direction.md#compolyx.SamplingPoint.use_default_reference_direction)Flag to use default reference direction.[`SamplingPoint.vertex`](compolyx.SamplingPoint.vertex.md#compolyx.SamplingPoint.vertex)Raises an error if the object has been removed from the graph.### Methods NameDescription[`SamplingPoint.aligned`](compolyx.SamplingPoint.aligned.md#compolyx.SamplingPoint.aligned)()Returns true if the sampling direction is aligned with the normal direction of the closest element.[`SamplingPoint.capture_analysis_plot`](compolyx.SamplingPoint.capture_analysis_plot.md#compolyx.SamplingPoint.capture_analysis_plot)(\[path, size\])Saves the sampling point analysis plot to a file.[`SamplingPoint.clt_query`](compolyx.SamplingPoint.clt_query.md#compolyx.SamplingPoint.clt_query)(\[query, ...\])Returns the properties of the classical laminate theory:.[`SamplingPoint.create_plot`](compolyx.SamplingPoint.create_plot.md#compolyx.SamplingPoint.create_plot)(\[query, ...\])Generates 2D plots with the results of interest.[`SamplingPoint.export_laminate`](compolyx.SamplingPoint.export_laminate.md#compolyx.SamplingPoint.export_laminate)(filename\[, ...\])[`SamplingPoint.find_parent`](compolyx.SamplingPoint.find_parent.md#compolyx.SamplingPoint.find_parent)(type)Steps up the tree and returns the first parent with given type.[`SamplingPoint.obj_exists`](compolyx.SamplingPoint.obj_exists.md#compolyx.SamplingPoint.obj_exists)()Checks if \_\_obj still references the c++ object (has not been reset to None by self.\_delete) and exists in the graph.[`SamplingPoint.serialize`](compolyx.SamplingPoint.serialize.md#compolyx.SamplingPoint.serialize)()[`SamplingPoint.serialize_name_and_id`](compolyx.SamplingPoint.serialize_name_and_id.md#compolyx.SamplingPoint.serialize_name_and_id)()Serializes the name and ID.[`SamplingPoint.update`](compolyx.SamplingPoint.update.md#compolyx.SamplingPoint.update)()[`SamplingPoint.update_plot`](compolyx.SamplingPoint.update_plot.md#compolyx.SamplingPoint.update_plot)(offset\_is\_middle, ...)Updates the 2D plot.[`SamplingPoint.visit`](compolyx.SamplingPoint.visit.md#compolyx.SamplingPoint.visit)(visitor)Walk through the tree and let the visitor perform action on every descendant node.