Leader

Toolbar Menu

Dimension
Drafting

Dimension

Leader

 History enabled

The Leader command draws an annotation leader with arrowhead and attached text.

Steps

  1. Pick the head of the leader.
    This is the arrow end.
  2. Pick the next points of the leader.
  3. Press Enter to end the command.
  4. In the dialog box, type text for the leader.
Add special symbols in the scriptable command, -Leader

Text containing spaces, to be entered at the Rhino command line, must be enclosed in double-quotes. In addition, some rich text characters cannot be input directly at the Rhino command line; they need to be enclosed in double-quotes or escaped using a single backslash in order to be correctly interpreted. For example:

Symbol

Input

Output

'

(Single quote)

"'xyz'"

'xyz'

"

(Double quote)

""xyz""

"xyz"

!

(Exclamation mark at beginning)

"!xyz"

!xyz

\

(Backslash)

"\\xyz\\"

\xyz\

{ and }

(Curly brackets)

\{xyz\}

{xyz}

Leader properties

Text

Style

The used annotation style.

Style menu

Lists the annotation styles available in the model. If an annotation has any settings in its properties different from its style, a menu behind the style name appears.

Remove overrides

Resets all the changed settings to the style defaults.

Update <Style> to match

Applies the changed settings to the annotation style.

Save as new style

Uses the settings in the properties to create a new style.

Edit Style...

Edits the Annotations style used by the selected annotation object.

Height

The text height.

Mask

Surrounds text with an opaque color.

None

Turn off mask.

Background

Sets the mask color to the viewport background color.

Solid Color

Selects the mask color using the Select Color dialog box.

Mask Color

When Mask is set to Solid Color, click to change the color.

Mask margins

The width of the blank area around the text.

Model space scale

The display size is a product of the component's size (like arrow size or text height) and the Model space scale value.

Normally this is the inverse of the print scale. The text height, extension line extension, extension line offset distance, and arrow length are multiplied by this number.

Draw frame around text

Displays a rectangle enclosing the text in annotations. The Mask margins setting controls the distance between the text and rectangle.

Font

The text appearance.

  • Click to open the drop-down list, and type the initial letter of a font to find the font quickly.

  • Click the font control twice and scroll the mouse wheel to select a font with preview.

  • If a font used by an annotation is missing on the current system:

    You will be prompted when the model is opened.

    Enable the "Don't show this message again" checkbox in the warning dialog box to stop detecting missing fonts.

    To re-enable missing font detection, enable Rhino.Warnings.MissingFontWarning in Rhino Options > Advanced.

    The annotation displays with a substitute font in viewports.

    The missing font is listed with "(not installed)" in the font list.

Left align text

Center align text

Right align text

Auto

Align text to the arrow side.

Top

Middle of first line

Bottom of first line

Middle

Middle of last line

Bottom

Underlined

B

Sets the font style to bold.

I

Sets the font style to italic.

U

Sets the font style to underlined.

Text Field

Text fields are formulas that are evaluated while Rhino is running and the result is displayed in the text. All text fields are in the syntax of %<field and options>%. When a formula cannot be evaluated an error string of #### is displayed.

  • If a text field displays a long text string, such as a long file path, you can turn on control points of the text and move the right text point to wrap the text string.
  • Text fields support basic arithmetic operations.
    To double an area, add *2 behind the close parenthesis as:
    %<Area("d90815b8...80c59a")*2>%
    To multiply two text fields, use:
    %<CurveLength("07c73fde...8a5c7b")*CurveLength("296ed593...0472e0")>%
Toggle stacking brackets

The toggle stacking brackets button is a shortcut to add or remove [[...]] around text selected in the edit box. Stacking brackets will make the text between them stack, so that [[1/2]] will display as a stacked fraction.

Degree

Enters a degree symbol (°) into the text.

Radius

Enters a radius symbol (R) into the text.

Diameter

Enters a diameter symbol (Ø) into the text.

Plus/Minus

Enters a plus/minus symbol (±) into the text.

Exponent 2

Enters a superscript 2 (²) into the text.

Exponent 3

Enters a superscript 3 (³) into the text.

Edit box

The text displays in the leader.

Edit Style...

Edits the Annotations style used by the selected annotation object.

Match

Selects an annotation to apply its properties to the current leader.

Add curve point

Allows placing an additional edit point to the leader curve.

Unit - Format

The unit and format of the annotation style.

Only for the leader created by DimArea or DimCurveLenth, or contains a Text Field of Area, CurveLength, or Volume.

More properties

Arrowhead
Arrow
Dot
Tick
Short arrow
Open arrow
Rectangle
Thin arrow
Thinner arrow
User arrow

Uses a previously defined block as an arrowhead.

This option is not available when no blocks exist in the model.

To create a block to represent the arrowhead

  1. Draw the arrow elements.
  2. Create a block from the geometry.
Note
  • The base point of the arrowhead block determines how the arrowhead is placed on the end of a dimension line or a leader. In the illustration below:

    (1) The base point of the arrowhead block is placed at the tip of the arrowhead curve. The dimension line passes the arrowhead.

    (2) The base point of the arrowhead block is placed at the end of the arrowhead curve. The dimension line does not pass the arrowhead.

    If you want the tip of the arrowhead to be accurately placed at a location, be sure to place the base point of the arrowhead block at the tip.

  • Make use of the By object, By layer, and By parent features of the Block command to control the appearance of the arrow.
No arrow

No arrow is drawn.

Arrow size

The length of the arrowhead from tip to tail.

Curve type

Sets the type of curve used by the leader.

None

Only the arrowhead and text are drawn.

Polyline

A segmented polyline is drawn.

Spline

A control point curve is used as the leader line.

Text alignment
Horizontal

The text aligns to the construction plane x-axis.

Aligned

The text is aligned to the leader segment.

Landing

Adds a short horizontal line between the leader line and the text.

Arrowhead

Toolbar Menu

Annotate

Not on menus.

The Arrowhead command modifies the end of a curve to an arrowhead shape.

Steps

  • Pick a curve near the end where you want to place an arrowhead.

See also

Use text and dimensions for annotation

RLeaderEdit

Toolbar

Menu

Not on toolbars.

Not on menus.

The RLeaderEdit command is run by script interface and OnDoubleClick to edit leaders.