Leader¶
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class
Leader(GraphicEntity)¶
Introduced in AutoCAD R13 (DXF version AC1012), dxftype is LEADER.
The Leader entity represents an arrow, made up of one or more vertices (or spline fit points) and an
arrowhead. The label or other content to which the Leader is attached is stored as a separate entity,
and is not part of the Leader itself.
Leader shares its styling infrastructure with Dimension.
By default a Leader without any annotation is created. For creating more fancy leaders and annotations
see documentation provided by Autodesk or Demystifying DXF: LEADER and MULTILEADER implementation notes .
Create leader in layouts and blocks by factory function add_leader().
Ellipse.dxf.extrusion is supported, but does not establish an OCS, it is used to create an 3D entity by
extruding the base ellipse.
DXF Attributes for Ellipse¶
Common DXF Attributes for DXF R13 or later
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Leader.dxf.dimstyle¶ Name of
Dimstyleas string.
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Leader.dxf.has_arrowhead¶ 0 Disabled 1 Enabled
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Leader.dxf.path_type¶ Leader path type:
0 Straight line segments 1 Spline
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Leader.dxf.annotation_type¶ 0 Created with text annotation 1 Created with tolerance annotation 2 Created with block reference annotation 3 Created without any annotation (default)
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Leader.dxf.hookline_direction¶ Hook line direction flag:
0 Hookline (or end of tangent for a splined leader) is the opposite direction from the horizontal vector 1 Hookline (or end of tangent for a splined leader) is the same direction as horizontal vector (see has_hook_line)
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Leader.dxf.has_hookline¶ 0 No hookline 1 Has a hookline
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Leader.dxf.text_height¶ Text annotation height.
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Leader.dxf.text_width¶ Text annotation width.
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Leader.dxf.block_color¶ Color to use if leader’s DIMCLRD = BYBLOCK
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Leader.dxf.annotation_handle¶ Hard reference (handle) to associated annotation (
MText,Tolerance, orInsertentity)
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Leader.dxf.normal_vector¶ Default: (0, 0, 1)
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Leader.dxf.horizontal_direction¶ “Horizontal” direction for leader, Default: (1, 0, 0)
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Leader.dxf.leader_offset_block_ref¶ Offset of last leader vertex from block reference insertion point, Default: (0, 0, 0)
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Leader.dxf.leader_offset_annotation_placement¶ Offset of last leader vertex from annotation placement point, Default: (0, 0, 0)