TechDraw 2LineCenterLine: Difference between revisions

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The 2LineCenterLine tool adds a center line between two Edges.
The 2LineCenterLine tool adds a centerline between two Edges.


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{{Caption|Aligned center line between 2 Edges}}
{{Caption|Aligned centerline between 2 Edges}}


==Usage== <!--T:6-->
==Usage== <!--T:6-->


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# Select 2 Edges in a View. The Edges should be more or less parallel.
# Select 2 Edges in a View. The Edges should be more or less parallel.
# Press the {{Button|[[Image:TechDraw_2LineCenterLine.svg|16px]] Add Centerline between 2 Lines}} button
# Press the {{Button|[[Image:TechDraw_2LineCenterLine.svg|16px]] Add Centerline between 2 Lines}} button
# A dialog will open where you can specify attributes of the new center line.
# A dialog will open where you can specify attributes of the new centerline.
# A centerline will be added between the 2 selected Edges.</br>If the generated line looks odd, you may need to use the option [[#Flip_Ends|'''Flip Ends''']].
# A centerline will be added between the 2 selected Edges.</br>If the generated line looks odd, you may need to use the option [[#Flip_Ends|'''Flip Ends''']].


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To delete a Centerline, select it and use the toolbar button {{Button|[[Image:TechDraw_CosmeticEraser.svg|16px]] [[TechDraw_CosmeticEraser|Remove Cosmetic Object]]}}.
To delete a Centerline, select it and use the toolbar button {{Button|[[Image:TechDraw_CosmeticEraser.svg|16px]] [[TechDraw_CosmeticEraser|Remove Cosmetic Object]]}}.


==Editing Center Lines== <!--T:9-->
==Editing Centerlines== <!--T:9-->


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Any of the centerline command buttons (
Any of the centerline command buttons (
{{Button|[[Image:TechDraw_FaceCenterLine.svg|16px]] [[TechDraw_FaceCenterLine|Add Centerline to Face(s)]]}},
{{Button|[[Image:TechDraw_FaceCenterLine.svg|16px]] [[TechDraw_FaceCenterLine|Add Centerline to Face(s)]]}},
{{Button|[[Image:TechDraw_2LineCenterLine.svg|16px]] [[TechDraw_2LineCenterLine|Add Centerline between 2 Lines]]}},
{{Button|[[Image:TechDraw_2LineCenterLine.svg|16px]] Add Centerline between 2 Lines}},
{{Button|[[Image:TechDraw_2PointCenterLine.svg|16px]] [[TechDraw_2PointCenterLine|Add Centerline between 2 Points]]}})
{{Button|[[Image:TechDraw_2PointCenterLine.svg|16px]] [[TechDraw_2PointCenterLine|Add Centerline between 2 Points]]}})
can be used to edit any centerline.
can be used to edit any centerline.


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# Select a center line.
# Select a centerline.
# Press any center line command button.
# Press any centerline command button.
# A dialog will open where you can change attributes of the center line.
# A dialog will open where you can change attributes of the centerline.
# Press {{Button|OK}} to see your changes.
# Press {{Button|OK}} to see your changes.


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Cosmetic center lines have no properties of their own, as they are not Document Objects. They do have attributes that can be changed in the center line edit dialog. Not all attributes apply to all center lines.
Centerlines have no properties of their own, as they are no document objects. They have attributes that can be edited.


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# Mode (radio buttons):
# Modus (radio buttons):
#* '''Vertical''': Forces a centerline vertical
#* '''Vertical''': Forces a centerline vertical
#* '''Horizontal''': Forces a centerline horizontal
#* '''Horizontal''': Forces a centerline horizontal
#* '''Aligned''': Follows the general direction of the Edge for 2 Edge center line
#* '''Aligned''': Follows the general direction of the Edge for 2 Edge centerline
# '''Shift Horiz''': Moves the centerline left or right of its normal position
# '''Shift Horiz''': Moves the centerline left or right of its normal position
# '''Shift Vert''': Moves the centerline up or down from its normal position
# '''Shift Vert''': Moves the centerline up or down from its normal position
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Cosmetic center lines are not accessible from [[macros|macros]] or the [[Python|Python]] console at this time.
Centerlines are not accessible from [[macros|macros]] or the [[Python|Python]] console at this time.


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Revision as of 13:44, 13 April 2020

TechDraw 2LineCenterLine

Menu location
TechDraw → Add Lines → Add Centerline between 2 Lines
Workbenches
TechDraw
Default shortcut
None
Introduced in version
0.19
See also
Add Centerline to Face(s), Add Centerline between 2 Points

Description

The 2LineCenterLine tool adds a centerline between two Edges.

Aligned centerline between 2 Edges

Usage

  1. Select 2 Edges in a View. The Edges should be more or less parallel.
  2. Press the Add Centerline between 2 Lines button
  3. A dialog will open where you can specify attributes of the new centerline.
  4. A centerline will be added between the 2 selected Edges.
    If the generated line looks odd, you may need to use the option Flip Ends.

To delete a Centerline, select it and use the toolbar button Remove Cosmetic Object.

Editing Centerlines

Any of the centerline command buttons ( Add Centerline to Face(s), Add Centerline between 2 Lines, Add Centerline between 2 Points) can be used to edit any centerline.

  1. Select a centerline.
  2. Press any centerline command button.
  3. A dialog will open where you can change attributes of the centerline.
  4. Press OK to see your changes.

Properties

Centerlines have no properties of their own, as they are no document objects. They have attributes that can be edited.

  1. Modus (radio buttons):
    • Vertical: Forces a centerline vertical
    • Horizontal: Forces a centerline horizontal
    • Aligned: Follows the general direction of the Edge for 2 Edge centerline
  2. Shift Horiz: Moves the centerline left or right of its normal position
  3. Shift Vert: Moves the centerline up or down from its normal position
  4. Rotate: Rotates the centerline around its center (degrees. + counterclockwise, - clockwise)
  5. Extend: Makes the centerline longer by this amount
  6. Color: Color of centerline
  7. Weight: Thickness of the centerline
  8. Style: Continuous, Dash, Dot, DashDot, DashDotDot
  9. Flip Ends: Flips endpoints for creation as described below

Flip Ends

Sketch how the centerline is constructed

The centerline between 2 lines is drawn between the midpoints (m0 and m1) of the lines that connects the endpoints of the selected lines (p0 and p1), see the sketch. Depending on the point order there are 2 possibilities to draw the connecting lines. The option Flip Ends flips the way the connecting lines are drawn.

Scripting

See also: TechDraw API and FreeCAD Scripting Basics.

Centerlines are not accessible from macros or the Python console at this time.