Takes an input point cloud and reconstructs it into an output mesh.
Input features having point cloud geometry.
Reconstructed mesh features.
Point clouds which are unable to be reconstructed, as well as non-point cloud geometries are output via the <Rejected> port.
Specifies whether to use Simple Triangulation, Poisson, or Marching Cubes reconstruction. Simple Triangulation uses a greedy algorithm to connect points into surfaces. Poisson reconstruction creates a closed, smooth mesh. Marching Cubes uses the Hoppe signed distance function to estimate the distance of each point to a surface.
The maximum number of neighbors to consider when performing normal estimation.
Specifies whether to clip the output mesh based on the distance between mesh vertices and original point cloud points.
The maximum allowable distance between each vertex in the output mesh and the closest point in the original point cloud. Vertices beyond this limit will be removed from the output mesh.
The maximum distance between points. Practically, this is the maximum edge length for every triangle.
The maximum acceptable distance for a point to be considered, relative to the distance of its nearest point.
The maximum number of neighbors to consider when performing surface reconstruction.
The minimum angle in each triangle.
The maximum angle in each triangle.
Sets the maximum angle between point normals. Above this maximum, points will not be connected.
Specifies whether input normals are consistently oriented.
Sets whether output triangle vertices should be ordered consistently.
Specifies the maximum depth of the tree that will be used for surface reconstruction. Higher values can result in more detailed output at the cost of performance.
Specifies the minimum depth of the tree that will be used for surface reconstruction. Higher values can result in more detailed output at the cost of performance.
Specifies the importance that interpolation of the point samples is given in the formulation of the screened Poisson equation. The results of the original (unscreened) Poisson Reconstruction can be obtained by setting this value to 0.
Specifies the ratio between the diameter of the cube used for reconstruction and the diameter of the samples’ bounding cube.
Sets the depth at which a block Gauss-Seidel solver is used to solve the Laplacian equation. This parameter can be used to reduce memory overhead at the cost of a small increase in reconstruction time. Solver Divide Depth must be greater than or equal to Minimum Depth.
Sets the depth at which a block iso-surface extractor should be used to extract the iso-surface. This parameter can be used to reduce memory overhead at the cost of a small increase in extraction time. Isosurface Divide Depth must be greater than or equal to Minimum Depth.
Specifies the minimum number of sample points that should fall within an octree node as the octree construction is adapted to sampling density. Larger values should be used for more noisy input data.
Enabling this parameter causes normals to be used as confidence information. When disabled, normals are normalized to have unit-length before reconstruction.
Specifies whether a polygon mesh or a triangle mesh should be output.
Enabling this parameter causes the polygon barycenter to be added when triangulating polygons with more than three vertices.
Marching Cubes Parameters
Sets the resolution along the x-axis of the cubic grid used for processing. Higher values will generally give more detailed results, at the cost of longer processing time.
Sets the resolution along the y-axis of the cubic grid used for processing. Higher values will generally give more detailed results, at the cost of longer processing time.
Sets the resolution along the z-axis of the cubic grid used for processing. Higher values will generally give more detailed results, at the cost of longer processing time.
Sets the iso level of the surface to be extracted.
Sets the percentage of the bounding box that should be left empty between the bounding box and the grid limits.
Editing Transformer Parameters
Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.
There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.
Using the Text Editor
The Text Editor provides a convenient way to construct text strings (including regular expressions) from various data sources, such as attributes, parameters, and constants, where the result is used directly inside a parameter.
Using the Arithmetic Editor
The Arithmetic Editor provides a convenient way to construct math expressions from various data sources, such as attributes, parameters, and feature functions, where the result is used directly inside a parameter.
Set values depending on one or more test conditions that either pass or fail.
Expressions and strings can include a number of functions, characters, parameters, and more.
When setting values - whether entered directly in a parameter or constructed using one of the editors - strings and expressions containing String, Math, Date/Time or FME Feature Functions will have those functions evaluated. Therefore, the names of these functions (in the form @<function_name>) should not be used as literal string values.
|These functions manipulate and format strings.|
|A set of control characters is available in the Text Editor.|
|Math functions are available in both editors.|
|Date/Time Functions||Date and time functions are available in the Text Editor.|
|These operators are available in the Arithmetic Editor.|
|These return primarily feature-specific values.|
|FME and workspace-specific parameters may be used.|
|Creating and Modifying User Parameters||Create your own editable parameters.|
Dialog Options - Tables
Transformers with table-style parameters have additional tools for populating and manipulating values.
Enabled once you have clicked on a row item. Choices include:
Cut, Copy, and Paste
Enabled once you have clicked on a row item. Choices include:
Cut, copy, and paste may be used within a transformer, or between transformers.
|Start typing a string, and the matrix will only display rows matching those characters. Searches all columns. This only affects the display of attributes within the transformer - it does not alter which attributes are output.|
|Import populates the table with a set of new attributes read from a dataset. Specific application varies between transformers.|
Generally resets the table to its initial state, and may provide additional options to remove invalid entries. Behavior varies between transformers.
Note: Not all tools are available in all transformers.
FME Licensing Level
FME Professional edition and above
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Keywords: point "point cloud" cloud PointCloud LiDAR sonar