mapteksdk.pointstudio.operations module

Operations available in PointStudio.

Operations exposes functionality from within an application that can be invoked from Python functions. These typically correspond to menu items that are available in the application, but their inputs can be populated from Python without requiring the user to fill them out.

Available operations from PointStudio include contouring, triangulating a surface, simplifying a surface, filtering points.

class DistanceMeasurementTarget(value)

Bases: Enum

If there are multiple objects to measure the distance to this specifies how it should be done.

CLOSEST_OBJECT = 1

AVERAGE = 2

class DistanceType(value)

Bases: Enum

Specifies whether distances should be considered as a signed or absolute.

SIGNED = 1

ABSOLUTE = 2

class TriangulationOutput(value)

Bases: Enum

Specifies what the output of a triangulation should be.

SINGLE_SURFACE = 1

SURFACE_PER_OBJECT = 2

SPLIT_ALONG_EDGE_CONSTRAINTS = 3

RELIMIT_TO_POLYGON = 4

class MaskOperation(value)

Bases: Enum

Specifies how an operation should act with existing data.

This is typically used for filtering operations.

AND = 1

OR = 2

REPLACE = 3

format_to_operation_string()

Format the value as expected by an operation input.

colour_by_distance_from_object(objects_to_colour, base_objects, measurement_target, distance_type, legend)

Colour points based on their (signed) distance from a base or reference objects.

This is useful for comparing triangulations of as-built surfaces against design models to highlight nonconformance. It can also be used to visualise areas of change between scans of the same area, for example a slow moving failure in an open pit mine.

Parameters

• objects_to_colour (list) – The list of objects to colour.

• base_objects (list) – The list of base or reference objects to measure the distance from.

• measurement_target (DistanceMeasurementTarget) – If CLOSEST_OBJECT then colouring is based on the closest base object to that point. If AVERAGE then colour is based on the average distance to every base object.

• distance_type (DistanceType) – If SIGNED then colouring will depend on which side of the base objects it is on. If ABSOLUTE then colouring will depend on the absolute distance.

• legend (ObjectID) – A numeric 1D colour map to use as the legend for colouring the object.

contour_surface(surfaces, lower_limit, upper_limit, major_contour_intervals=15.0, major_contour_colour=(0, 255, 255, 255), minor_contour_intervals=None, minor_contour_colour=(255, 0, 127, 255), destination_path=None)

Create contours from surfaces (triangulations), which are then saved into an edge network object.

Parameters

• surfaces (list) – The list of surfaces to contour.

• lower_limit (float) – The minimum value of the contours (the lowest elevation).

• upper_limit (float) – The maximum value of the contours (the highest elevation).

• major_contour_intervals (float) – The difference in elevation between major contour lines.

• major_contour_colour (sequence) – The colour of the major contour lines. This may be a RGB colour [red, green, blue] or a RGBA colour [red, green, blue, alpha].

• minor_contour_intervals (float or None) – If None then no minor contours lines will be included. The difference in elevation between minor contour lines between the major contour lines.

• minor_contour_colour (sequence) – The colour of the minor contour lines. This may be a RGB colour [red, green, blue] or a RGBA colour [red, green, blue, alpha]. This is only relevant if minor_contour_intervals is not None.

• destination_path (str) – The path to where the contours should be written. If None then the default path will be used.

Returns

The list of edge networks created that contain the resulting the contour lines if there are no minor contour lines. Otherwise a list of containers each containing the set of major and minor contour lines will be provided.

Return type

list

Raises

• ValueError – If a colour cannot be converted to a valid RGBA colour.

• ValueError – If lower_limit is greater than upper_limit. You may have simply passed the arguments in the wrong way around.

fill_holes(surfaces)

Fills holes that may appear when editing a surface (triangulation).

Parameters

surfaces (list) – The list of surfaces to have holes filled in.

filter_by_polygon(scans, polygon, extrusion_direction=(0, 0, 1), keep_points_inside=True, filter_combination=MaskOperation.AND)

Filter scan data specified by a polygon and retain points inside or outside the polygon.

Parameters

• scans (list) – The list of scans to which the filter should be applied.

• polygon (ObjectID) – The polygons by which to filter

• extrusion_direction (list of three floats) – The direction of the polygon extrusions.

• keep_points_inside (bool) – If true then points inside the polygon region are kept, otherwise points outside the polygon region are kept.

• filter_combination (MaskOperation) – Specify how to combine this filter with any filter previously applied to the selected data.

Raises

ValueError – If extrusion_direction is not a three dimensional vector.

filter_isolated_points(scans, point_separation, filter_combination=MaskOperation.AND)

Filter point that are a large distance from any other points. This can be useful for filtering dust particles or insects that may have been scanned.

Parameters

• scans (list) – The list of scans to which the filter should be applied.

• point_separation (float) – Points without a neighbouring point within this distance will be filtered. Any points separated by less than this distance will be retained. This distance should be in metres.

• filter_combination (MaskOperation) – Specify how to combine this filter with any filter previously applied to the selected data.

filter_minimum_separation(scans, minimum_distance, filter_combination=MaskOperation.AND, treat_scans_separately=False)

Filter point sets to give a more even distribution. Point density decreases as the distance from the scanner increases, so this option is able to reduce the number of points close to the scanner whilst retaining points further away.

Data reduction can have a major impact on the number of points in an object and on the modelling processes.

Parameters

• scans (list) – The list of scans to which the filter should be applied.

• minimum_distance (float) – The average minimum separation between points in the object. This distance should be in metres.

• filter_combination (MaskOperation) – Specify how to combine this filter with any filter previously applied to the selected data.

• treat_scans_separately (bool) – Treat scans separately such that each scan is considered in isolation. Otherwise it works on all objects as a complete set which results in an even distribution of data for the entire set of objects.

filter_topography(scans, search_cell_size, keep_lower_points=True, filter_combination=MaskOperation.AND, treat_scans_separately=False)

Filter point sets to remove unwanted features. This enables equipment such as trucks and loaders to be filtered and retains only the relevant topographic surface of the mine.

The topography filter divides the scan data into a horizontal grid with a defined cell size. Only the single lowest or highest point in the cell is retained.

Data reduction can have a major impact on the number of points in an object and on the modelling processes.

Parameters

• scans (list) – The list of scans to which the filter should be applied.

• search_cell_size (float) – The size of the cells. A typical cell size is between 0.5 and 2 metres. If the cell size is too large it will have the effect of rounding edges.

• keep_lower_points (bool) – If true then lower points are kept, otherwise the upper points are kept. Upper points would only be used in an underground situation to retain the roof.

• filter_combination (MaskOperation) – Specify how to combine this filter with any filter previously applied to the selected data.

• treat_scans_separately (bool) – Treat scans separately such that each scan is considered in isolation. Otherwise it works on all objects as a complete set which results in an even distribution of data for the entire set of objects.

simplify_by_distance_error(surfaces, distance_error, preserve_boundary_edges=False, avoid_intersections=True)

Simplifies a facet network, reducing the number of facets while maintaining the surface shape.

Triangulation simplification can introduce inconsistencies in the surface, such as triangles that overlap or cross.

Parameters

• surfaces (list) – The list of surfaces to simplify.

• distance_error (float) – The maximum allowable average error by which each simplified surface can deviate from its original surface.

• preserve_boundary_edges (bool) – Specify if the surface boundary should remain unchanged.

• avoid_intersections (bool) – Prevent self intersections in the resulting surface. This will offer some performance benefit at the cost that the resulting surface may not work with other tools until the self intersections are fixed.

Returns

The list of surfaces.

Return type

list

simplify_by_triangle_count(surfaces, triangle_count, preserve_boundary_edges=False, avoid_intersections=True)

Simplifies a facet network, reducing the number of facets while maintaining the surface shape.

This should be used if there there is a specific number of triangles to which the triangulation must be restricted.

Triangulation simplification can introduce inconsistencies in the surface, such as triangles that overlap or cross.

Parameters

• surfaces (list) – The list of surfaces to simplify.

• triangle_count (int) – The target number of triangles is the approximate number of triangles each simplified triangulation (surface) will contain.

• preserve_boundary_edges (bool) – Specify if the surface boundary should remain unchanged.

• avoid_intersections (bool) – Prevent self intersections in the resulting surface. This will offer some performance benefit at the cost that the resulting surface may not work with other tools until the self intersections are fixed.

Returns

The list of surfaces.

Return type

list

despike(surfaces)

Remove spikes from a triangulation.

The Despike option removes spikes caused by dust or vegetation that may appear when creating a data model. This modifies the objects in-place, i.e it does not create a copy of the data.

If unwanted points remain after running the despike tool, these must be manually deleted or a supplementary tool may resolve the issues.

Parameters

surfaces (list) – The list of surfaces to despike.

Returns

The list of surfaces.

Return type

list

fix_surface(surfaces)

Automates fixing of common issues with surfaces (triangulation).

The fixes it performs are: - Self intersections - Fixes cases where the surface intersects itself

• Trifurcations - Fixes cases where the surface touches itself, creating a T-junction.

• Facet normals - Orient facet normals to point in the same direction. This will be up for surfaces/topography and out for solids.

• Vertical facets - Remove vertical facets and close the hole this produces by moving the points along the bottom of the vertical region up or the points along the top down, adding points as necessary to neighbouring non-vertical facets to maintain a consistent surface.

Parameters

surfaces (list) – The list of surfaces to fix.

Returns

The list of surfaces.

Return type

list

topographic_triangulation(scans, trim_edges_to_maximum_length=None, output_option=TriangulationOutput.SINGLE_SURFACE, relimit_to_polygon=None, edge_constraints=None, destination='')

Create triangulations (surfaces) of a group of scans.

This works in the XY plane, that is, it triangulates straight down. This means that if there are areas of undercut walls, these will not be modelled accurately.

This option is typically used once scans have been registered and filtered.

Parameters

• scans (list) – The list of scan objects to triangulate.

• trim_edges_to_maximum_length (float or None) – If not None, then long, incorrectly generated boundary triangles will be eliminated. A maximum length is specified, which prevents triangles greater than this being created. This option is only applicable to boundary triangles; large voids in the centre of the data will still be modelled.

• output_option (TriangulationOutput) – If SINGLE_SURFACE, then this creates a single surface from the selected objects/scans. If SURFACE_PER_OBJECT, then this creates a single surface for each selected object/scan. If SPLIT_ALONG_EDGE_CONSTRAINTS, then splits the triangulation into separate objects based on any lines or polygons provided by edge_constraints.

• relimit_to_polygon (ObjectID or None) – Constrains the model to a polygon, for example a pit boundary. The output_option must be RELIMIT_TO_POLYGON to use this.

• edge_constraints (list or None) – The lines and polygons to use when splitting the triangulation into separate objects. The output_option must be SPLIT_ALONG_EDGE_CONSTRAINTS to use this.

• destination (str) – An optional path to the container to store the resulting triangulations. The empty string will use a default path.

loop_surface_straight(selection, destination=None)

Create a Surface from a series of loops using “straight loop ordering”.

This creates a single Surface with the loops connected based on their orientation.

Parameters

• selection (list) – List of Surfaces or Polygons to use to generate the loop surface. Each must contain loops.

• destination (str) – Path to place the destination object. If not specified, this will use the default destination of the menu item.

Returns

Selection containing the created Surface.

Return type

WorkflowSelection

loop_surface_iterative(selection, destination=None)

Creates Surfaces from a series of loops using “iterative loop ordering”.

This joins nearby loops with similar orientations. This can create multiple surfaces and may wrap around corners if needed.

Unlike loop_surface_straight this may ignore loops if they are not sufficiently close to another loop.

Parameters

• selection (list) – List of Surfaces or Polygons to use to generate the loop surfaces. Each must contain loops.

• destination (str) – Path to place the destination object. If not specified, this will use the default destination of the menu item.

Returns

Selection containing the created Surface(s).

Return type

WorkflowSelection

General Operations

These operations can be imported from this module, however they are actually defined in mapteksdk.operations.

exception TooOldForOperation(minimum_version, current_version)

Bases: Exception

Error raised when the application is too old to support an operation.

Parameters

• minimum_version (tuple[int, int]) – Minimum version required to support the operation. This is of the form (major, minor).

• current_version (tuple[int, int]) – Current version required to support the operation. This is of the form (major, minor).

Notes

This does not check that current_version is older than new_version.

args

with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

exception PickFailedError(pick_type)

Bases: ValueError

Error raised when a pick operation fails.

This is also raised when a pick operation is cancelled.

Parameters

pick_type (SelectablePrimitiveType | str) – The SelectablePrimitiveType for the pick which failed, or a string representing the type of the pick operation.

args

with_traceback()

Exception.with_traceback(tb) – set self.__traceback__ to tb and return self.

class SelectablePrimitiveType(value)

Bases: Enum

Enum representing the selectable primitive types.

Warning

Block selections are impossible in PointStudio even when block objects are loaded into the view.

POINT = 1

EDGE = 2

FACET = 3

CELL = 5

BLOCK = 6

class Primitive(path, primitive_type, index)

Bases: object

Class which can uniquely identify a selected primitive.

Includes the object the primitive exists in, the type of the primitive and the index of that primitive in the object.

Parameters

• path (str) – The path to the object containing the primitive.

• primitive_type (SelectablePrimitiveType) – The type of primitive selected.

• index (int) – Index of the selected primitive in the object.

property path: str

Path to the object containing the selected primitive.

property primitive_type: SelectablePrimitiveType

The type of primitive which was selected.

property index: int

The index of the selected primitive in the primitive array.

operations.open_new_view(wait=True)

Open a new view window in the current application.

This is only suitable for use by the Python SDK When connecting to an existing Maptek application.

Using the Python SDK to develop an application which creates an Maptek Viewer within it requires special handling to set-up that isn’t provided by this function.

Supported by PointStudio 2021.1, Vulcan GeologyCore 2021 and higher.

Parameters

• objects (list[ObjectID[DataObject]]) – The list of objects to include in the new view.

• wait (bool) – If True then the function waits until the view has been opened and is considered complete before returning and will return the ObjectID of the newly created view. Otherwise it won’t wait and it will return immediately with no result.

Returns

• ViewController – The view controller for the newly created view if wait is True.

• None – If wait is False.

Raises

TooOldForOperation – If the application does not have the necessary support for this operation.

Return type

ViewController

operations.opened_views()

Return the list of opened views in the current application.

This does not include embedded views in panels.

This is only suitable for use by the Python SDK when connecting to an existing Maptek application.

Supported by PointStudio 2021.1, Vulcan GeologyCore 2021 and higher.

Returns

A list containing the ViewController for each of the opened views. If there are no opened views this list will be empty.

Return type

list

Raises

TooOldForOperation – If the application does not have the necessary support for this operation.

Example

Print out the list of active views.

>>> from mapteksdk.project import Project
>>> import mapteksdk.operations as operations
>>> project = Project()
>>> print('Open views:')
>>> for view in operations.opened_views():
>>>     print(view.server_name, view.window_title)

operations.active_view()

Return the active view of the current application otherwise None if there is no active view

This is only suitable for use by the Python SDK when connecting to an existing Maptek application.

Supported by PointStudio 2021.1, Vulcan GeologyCore 2021 and higher.

Returns

• ViewController – The view controller for the active view

• None – If there was no active view.

Raises

TooOldForOperation – If the application does not have the necessary support for this operation.

Return type

ViewController | None

Example

Query the active view

>>> from mapteksdk.project import Project
>>> import mapteksdk.operations as operations
>>> project = Project()
>>> view = operations.active_view()
>>> if view:
>>>    print(f"The active view is: {view}")
>>> else:
>>>     print("There is no active view.")

operations.active_view_or_new_view()

Return the active view of the current application or opens a new view if there is none.

This is only suitable for use by the Python SDK when connecting to an existing Maptek application.

Supported by PointStudio 2021.1, Vulcan GeologyCore 2021 and higher.

Returns

• ViewController – The view controller for the active view or new view.

• None – If it was unable to determine the active view or create a new view.

Raises

TooOldForOperation – If the application does not have the necessary support for this operation.

Return type

ViewController | None

Example

Query the active view or create a new view if there is no active view.

>>> from mapteksdk.project import Project
>>> import mapteksdk.operations as operations
>>> project = Project()
>>> view = operations.active_view_or_new_view()

operations.coordinate_pick(*, support_label='', help_text='')

Requests for the user to select a coordinate in the software.

This will wait for the user to select a coordinate and then returns the point.

Supported by PointStudio 2021.1, Vulcan GeologyCore 2021 and higher.

Parameters

• label (str) – The label to show for the coordinate pick. This is shown in the status bar to the left of the X, Y and Z coordinates of the selected point. Default is “Select a coordinate”. The default may be translated to the user’s selected language within the application.

• support_label (str) – The support label to display in a yellow box at the top of the view. Default is “Select a coordinate”. The default may be translated to the user’s selected language within the application. If label is specified and this is not, this will default to label.

• help_text (str) – Text to display when the mouse hovers over the status bar during the coordinate pick option. Default is: “Select a coordinate for the running Python Script”. The default may be translated to the user’s selected language within the application.

Returns

A ndarray with shape (3,) representing the selected coordinate.

Return type

ndarray

Raises

• TooOldForOperation – If the application does not have the necessary support for this operation.

• PickFailedError – If the pick operation is cancelled or fails.

Notes

A coordinate pick allows the user to pick any coordinate and thus the coordinate may not be a part of any object. If the selected coordinate must be a coordinate on an object, use primitive pick instead.

Examples

Request for the user to select two points in the running application and then calculates the distance between those two points. The selected points and the distance is displayed in the report window. When picking the first point, the message in the bottom corner of the screen will be: “Pick the first point”. For the second point it will be: “Pick the second point”.

>>> import numpy as np
>>> from mapteksdk.operations import (coordinate_pick, write_report)
>>> from mapteksdk.project import Project
>>> project = Project()
>>> start = coordinate_pick(label="Pick the first point.")
>>> end = coordinate_pick(label="Pick the second point.")
>>> difference = start - end
>>> distance = np.linalg.norm(difference)
>>> write_report(f"Distance between points",
...              f"The distance between {start} and {end} is {distance}")

operations.object_pick(*, support_label='', help_text='')

Requests for the user to select an object in the software.

This will wait for the user to select an object and then returns it.

Supported by PointStudio 2021.1, Vulcan GeologyCore 2021 and higher.

Parameters

• label (str) – The label to show for the object pick. This is shown in the status bar. Default is “Select a object”. The default may be translated to the user’s selected language within the application.

• support_label (str) – The support label to display in a yellow box at the top of the view. Default is “Select a object”. The default may be translated to the user’s selected language within the application. If label is specified and this is not, this will default to label.

• help_text (str) – Text to display when the mouse hovers over the status bar during the object pick option. Default is: “Select a object for the running Python Script”. The default may be translated to the user’s selected language within the application.

Returns

Object ID of the selected object. This may be a null object id.

Return type

ObjectID

Raises

• TooOldForOperation – If the application does not have the necessary support for this operation.

• PickFailedError – If the pick operation is cancelled or fails.

Examples

Ask for the user to select an object in the running application. A report is added to the report window containing the type of the selected object.

>>> from mapteksdk.operations import object_pick, write_report
>>> from mapteksdk.project import Project
>>> project = Project()
>>> oid = object_pick(label="Query object type",
...                   support_label="Select an object to query its type")
>>> write_report("Query type", f"{oid.path} is a {oid.type_name}")

operations.primitive_pick(*, label='', support_label='', help_text='')

Requests for the user to select a primitive of the specified type in the software.

This will wait for the user to select a primitive and returns it.

Supported by PointStudio 2021.1, Vulcan GeologyCore 2021 and higher.

Parameters

• primitive_type (SelectablePrimitiveType) – The type of Primitive the user will be asked to select.

• label (str) – The label to show for the primitive pick. This is shown in the status bar. Default is “Select a primitive”. The default may be translated to the user’s selected language within the application.

• support_label (str) – The support label to display in a yellow box at the top of the view. Default is “Select a primitive”. The default may be translated to the user’s selected language within the application. If label is specified and this is not, this will default to label.

• help_text (str) – Text to display when the mouse hovers over the status bar during the primitive pick option. Default is: “Select a primitive for the running Python Script”. The default may be translated to the user’s selected language within the application.

Returns

Object representing the selected primitive.

Return type

Primitive

Raises

• TooOldForOperation – If the application does not have the necessary support for this operation.

• PickFailedError – If the pick operation is cancelled or fails.

Examples

Request for the user to pick a point and then displays a report containing the coordinate of the selected point.

>>> from mapteksdk.operations import (primitive_pick,
...                                   SelectablePrimitiveType,
...                                   write_report)
>>> from mapteksdk.project import Project
>>> project = Project()
>>> primitive = primitive_pick(SelectablePrimitiveType.POINT)
>>> with project.read(primitive.path) as read_object:
... write_report("Selected point", str(read_object.points[primitive.index]))

Request for the user to pick an edge then displays a report containing the points the selected edge connects.

>>> from mapteksdk.operations import (primitive_pick,
...                                   SelectablePrimitiveType,
...                                   write_report)
>>> from mapteksdk.project import Project
>>> project = Project()
>>> primitive = primitive_pick(SelectablePrimitiveType.EDGE)
>>> with project.read(primitive.path) as read_object:
...     edge = read_object.edges[primitive.index]
...     start = read_object.points[edge[0]]
...     end = read_object.points[edge[1]]
...     write_report("Selected Edge", f"{start} to {end}")

operations.write_report(message)

Write a report to the report window of the application.

Supported by PointStudio 2021.1, Vulcan GeologyCore 2021 and higher.

Parameters

• label (str) – The label to show on the report.

• message (str) – The message to include in the report. This is essentially the body of the report itself.

Example

Write out a simple report

>>> from mapteksdk.project import Project
>>> import mapteksdk.operations as operations
>>> project = Project()
>>> operations.write_report(
...     'My Script', 'Completed filtering in 1.5 seconds')