Scaler

Categories

3D

Coordinates

Geometries

The Scaler scales objects to make them bigger or smaller.

Parameters

Scale Factors

A separate multiplier must be set for each of the X, Y, and Z axes. For two-dimensional features, the Z multiplier is ignored.

Parameters

If Text Scaling is set to "Location and Size", any text features will have their height scaled in addition to their location.

If Raster Scaling is set to "Spacing Only", then only the spacing of raster features will be scaled (for example, the x spacing will be multiplied by the x scale factor). Otherwise when set to "Extents", all raster properties (spacing, origin, and rotation) may be affected by the scaling operation. Extents mode means scaling a raster will behave similarly to scaling all other geometries.

The value of Scale Origin specifies the location. The geometry is scaled relative to Scale Origin.

  • 0,0: A data shift may occur.
  • Center Point: The location of the feature's center point after scaling will be the same as the center point of the input feature. If the input feature is a raster, only X and Y scale factors will cause coordinate location shifts. The Z scale factor will cause the values in the cells of the raster to be scaled by the specified amount for each selected band.

Point Cloud

Specifies a component to scale on point cloud features. Note that the x, y, and z components can be scaled using the X, Y, and Z parameters. This parameter is intended for non-spatial components (for example, intensity).

If the same component occurs multiple times in the table, the component's value will be scaled by each of the Scale Factor values.

The multiplier that will be applied to the corresponding point cloud component.

Usage Notes

  • This transformer supports raster band and palette selection. The RasterSelector can be used to modify selection.
  • This transformer simply multiplies all coordinate values with the specified scale factors. If the object being scaled is not on or near the 0,0 point of the coordinate system, using the Scaler will also introduce a shift to your data.
  • This transformer works with both raster and vector data.

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.

Defining Values

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.

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.

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.

Dialog Options - Tables

Transformers with table-style parameters have additional tools for populating and manipulating values.

Row Reordering

Enabled once you have clicked on a row item. Choices include:

  • Add a row
  • Remove a row
  • Move current row up one
  • Move current row down one
  • Move current row to top
  • Move current row to bottom

Cut, Copy, and Paste

Enabled once you have clicked on a row item. Choices include:

  • Cut a row - delete and copy to clipboard
  • Copy a row to the clipboard
  • Paste a row from the clipboard

Cut, copy, and paste may be used within a transformer, or between transformers.

Filter

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

Import populates the table with a set of new attributes read from a dataset. Specific application varies between transformers.

Reset/Refresh

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 Community

The FME Community is the place for demos, how-tos, articles, FAQs, and more. Get answers to your questions, learn from other users, and suggest, vote, and comment on new features.

Search for samples and information about this transformer on the FME Community.

 

Keywords: pointcloud