PointCloudSurfaceBuilder

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.

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.

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.

Text Editor

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.

Arithmetic Editor

Conditional Values

Set values depending on one or more test conditions that either pass or fail.

Parameter Condition Definition Dialog

Content

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.

Content Types

String Functions	These functions manipulate and format strings.
Special Characters	A set of control characters is available in the Text Editor.
Math Functions	Math functions are available in both editors.
Date/Time Functions	Date and time functions are available in the Text Editor.
Math Operators	These operators are available in the Arithmetic Editor.
FME Feature Functions	These return primarily feature-specific values.
FME Parameters	FME and workspace-specific parameters may be used.
Creating and Modifying User Parameters	Create your own editable parameters.

Note: Not all tools are available in all transformers.