Sets the properties of an arc geometry to those specified. All parameters are optional; if a value is unspecified, it is left unmodified on the geometry. This transformer works on a single feature at a time.
This transformer can also be used to create an arc by using a point as an input. The point geometry will be used as the center point for the new arc. When using this creation mode, you must supply, at minimum, the following parameters: Primary Radius, Start Angle, Sweep Angle.
Input Ports
Input
Features with arc or point geometry.
Output Ports
Output
Features with the properties of the arc geometry modified according to the new values provided, or the newly created arc geometry.
<Rejected>
Invalid features will be output via this port.
Parameters
General
Primary Radius
The new length of the primary radius for the ellipse upon which the arc is based.
Secondary Radius
The new length of the secondary radius for the ellipse upon which the arc is based.
Rotation
The new rotation of the ellipse that defines the arc. The rotation angle specifies the angle in degrees from the horizontal axis to the primary axis in a counterclockwise direction.
Start Angle
The new parametric angle of the start point of the arc, in degrees.
Sweep Angle
The new parametric sweep angle of the start arc, in degrees.
The default is 360.
Start X
The new x coordinate value for the arc’s start point
Start Y
The new y coordinate value for the arc’s start point
Start Z
The new z coordinate value for the arc’s start point
End X
The new x coordinate value for the arc’s end point
End Y
The new y coordinate value for the arc’s end point
End Z
The new z coordinate value for the arc’s end point
Center X
The new x coordinate of the center of the ellipse. If not specified, the first coordinate of the feature is used.
Center Y
The new y coordinate of the center of the ellipse. If not specified, the first coordinate of the feature is used.
Center Z
The new z coordinate of the center of the ellipse. If not specified, the first coordinate of the feature is used.
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.
How to Set Parameter Values
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.
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
| These functions manipulate and format strings. | |
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Special Characters |
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.
Table Tools
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Row Reordering
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Enabled once you have clicked on a row item. Choices include:
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Cut, Copy, and Paste
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Enabled once you have clicked on a row item. Choices include:
Cut, copy, and paste may be used within a transformer, or between transformers. |
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Filter
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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. |
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Import
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Import populates the table with a set of new attributes read from a dataset. Specific application varies between transformers. |
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Reset/Refresh
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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
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