TechDraw WeldSymbol

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Techdraw-weldsymbol.svg TechDraw WeldingSymbol

Menu location
TechDraw → Add Welding Information to Leaderline
Workbenches
TechDraw
Default shortcut
None
Introduced in version
0.19
See also
Add Leaderline to View


Description

The WeldingSymbol tool adds welding specifications to an existing leader line.

TechDraw WeldingSymbol example.png

Welding specification added to a leader line


Usage

  1. Select an existing TechDraw LeaderLine.svg Add Leaderline to View
  2. Press the TechDraw WeldSymbol.svg Add Welding Information to Leaderline button
  3. A Task dialog will open. The dialog allows entry/selection of individual welding symbols and accompanying text to be added to the leader line.
  4. To exit the dialog and save changes, press the OK button.
  5. To exit the dialog without saving, press the Cancel button.
  6. After the welding symbol is created, it can be edited by double clicking the WeldingSymbol in the Tree.

Properties

Weld Symbol

  • DataAll Around: Shows the All Around symbol (circle) at the kink in the leader line.
  • DataField Weld: Show the Field Weld symbol (flag) at the kink in the leader line.
  • DataAlternate Weld: Offsets the lower symbol to indicate alternating welds.
  • DataTail Text: Text to be shown at the end of the leader line.

Tile

Each individual symbol ("arrow side" and "other side") is represented by a "tile" object. A Welding Symbol has 1 or 2 tiles associated with it. Each of it has the following properties:

  • DataTile Parent: The parent Weld Symbol
  • DataTile Row: Row of the tile. 0 means above the line, -1 below the line. (This property is not intended to be changed, just as information.)
  • DataTile Column: Not implemented yet - there is only column 0 at the moment.
  • DataSymbol File: Directory and file name of the symbol's SVG file.
  • DataSymbol Included: Directory and file name of the actual included symbol SVG file. (It is a temporary directory.)
  • DataLeft Text: Text to be displayed to the left of the SVG symbol.
  • DataCenter Text: Text to be displayed above/below the SVG symbol.
  • DataRight Text: Text to be displayed to the right of the SVG symbol.

Scripting

See also: TechDraw API and FreeCAD Scripting Basics.

The WeldingSymbol tool can be used in macros and from the Python console by using the following functions:

symbolName = "DrawWeldSymbol001")
symbolType = "TechDraw::DrawWeldSymbol"
App.activeDocument().addObject(symbolType, symbolName)
App.activeDocument().Page.addView(App.activeDocument().DrawWeldSymbol001)
App.activeDocument().DrawWeldSymbol001.Leader = myLeader
App.activeDocument().DrawWeldSymbol001.AllAround = True
App.activeDocument().DrawWeldSymbol001.FieldWeld = True
App.activeDocument().DrawWeldSymbol001.AlternatingWeld = True
App.activeDocument().DrawWeldSymbol001.TailText = "process text"

tileName = "DrawTileWeld001"
tileType = "TechDraw::DrawTileWeld"
App.activeDocument().addObject(tileType, tileName)
App.activeDocument().DrawTileWeld001.TileParent = App.activeDocument().DrawWeldSymbol001
App.activeDocument().DrawTileWeld001.TileRow = 0
App.activeDocument().DrawTileWeld001.TileColumn = 0
App.activeDocument().DrawTileWeld001.SymbolFile = fullPathToMySvgFile
App.activeDocument().DrawTileWeld001.LeftText = "left text"
App.activeDocument().DrawTileWeld001.RightText = "right text"
App.activeDocument().DrawTileWeld001.CenterText = "center text"

Svg Symbol Tiles

  • Individual symbols are formed by 64x64 pixel Svg files. Additional symbols can be created in an Svg program like Inkscape using one of the supplies symbols as a template.
Techdraw-WeldingSymbolLayoutArrow.svg
Techdraw-WeldingSymbolLayoutOther.svg



  • Individual symbols are formed by 64x64 (nominal) pixel Svg files. The tiles actually have a "border" of 4px. The border ensures that the leader line and symbol meet nicely.
  • The symbol is drawn in black on a transparent background. The stroke is 0.5mm.
  • The leader passes below symbols for the arrow side and above symbols for the "other" side.
  • There is no particular naming standard other than to append "Up/Down" to the arrow/other side symbols where required.

Notes

  • You can edit your WeldingSymbol by double clicking on it in the tree view. Double clicking in the graphics area is not yet supported.
  • There is a preference parameter for the default welding symbol directory. You can add your own symbols in a personal directory.