Queste funzioni fanno parte di TechDraw e possono essere utilizzate nelle macro e dalla console Python dopo l'importazione del modulo TechDraw.
Good examples of basic TechDraw scripting can be found in the unit test scripts.
See the TechDrawGui API for more functions.
Esempio:
import FreeCAD
import TechDraw
page = FreeCAD.ActiveDocument.addObject('TechDraw::DrawPage', 'Page')
FreeCAD.ActiveDocument.addObject('TechDraw::DrawSVGTemplate', 'Template')
FreeCAD.ActiveDocument.Template.Template = templateFileSpec
FreeCAD.ActiveDocument.Page.Template = FreeCAD.ActiveDocument.Template
page.ViewObject.show()
view = FreeCAD.ActiveDocument.addObject('TechDraw::DrawViewPart', 'View')
rc = page.addView(view)
EdgeWalker(listOfEdges, [bool])Description: Crea polilinee dai bordi in ingresso tramite grafici planari trasversali. Opzionalmente si può escludere la OuterWire impostando il parametro opzionale su falso.
Returns: Elenco dei wire ordinati per dimensione (decrescente)
findOuterWire(listOfEdges)Description: Trova l'OuterWire (più grande) in un elenco di bordi (che formano un grafo planare).
Returns: Outer wire
findShapeOutline(TopoShape, scale, direction)Description: Proietta la forma nella direzione e trova il wire esterno nel risultato.
Returns: Outline wire
viewPartAsDxf(DrawViewPart)Description: Return the edges of a DrawViewPart in Dxf format.
Returns: String
Example:
fileSpecDxf = "fcOut.dxf"
v = App.ActiveDocument.View
s = TechDraw.viewPartAsDxf(v)
dxfEnd = "0\nEOF\n"
dxfFile = open(fileSpecDxf, "w")
dxfFile.write(s)
dxfFile.write(dxfEnd)
dxfFile.close()
viewPartAsSvg(DrawViewPart)Description: Return the edges of a DrawViewPart in Svg format.
Returns: String
Example:
fileSpecSvg = "fcOut.svg"
v = App.ActiveDocument.View
s = TechDraw.viewPartAsSvg(v)
head = '<svg\n' + \
' xmlns="http://www.w3.org/2000/svg" version="1.1" \n' + \
' xmlns:freecad="https://wiki.freecad.org/index.php?title=Svg_Namespace">\n'
tail = '\n</svg>'
svgFile = open(fileSpecSvg, "w")
svgFile.write(head)
svgFile.write(s)
svgFile.write(tail)
svgFile.close()
writeDXFView(DrawViewPart, FileName)Description: Save the DrawViewPart in Dxf.
Returns: File
Example:
import TechDraw
TechDraw.writeDXFView(myPart,myFileName)
writeDXFPage(DrawPage, FileName)Description: Save the DrawPage in Dxf.
Returns: File
Example:
import TechDraw
TechDraw.writeDXFPage(myPage,myFileName)
DrawViewPart Cosmetics
CosmeticVertex (CV) routines accessible from Python
dvp = App.ActiveDocument.View #CV's belong to views.
Add a CosmeticVertex at p1 (View coordinates). Returns unique tag.
tag = dvp.makeCosmeticVertex(vector p1)
Add a CosmeticVertex at p1 (3d model coordinates). Returns unique tag.
tag = dvp.makeCosmeticVertex3d(vector p1)
Returns CosmeticVertex with unique id.
cv = dvp.getCosmeticVertex(string id)
Returns CosmeticVertex with name (Vertex6). Used in selections.
cv = dvp.getCosmeticVertexBySelection(string name)
Removes CosmeticVertex from View. Returns None.
dvp.removeCosmeticVertex(object cv)
Removes all CosmeticVertices from the View. Returns None.
dvp.clearCosmeticVertices()
CosmeticView attributes
Tag: unique identifier. String.
Point: location within view. Vector.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Py CosmeticVertex demo
import FreeCAD
import TechDraw
v = App.ActiveDocument.View
p = App.Vector(-3.0, -3.0, 0.0)
#make CV
tag = v.makeCosmeticVertex(p)
print("t: {}".format(tag))
#retrieve CV
cv = v.getCosmeticVertex(tag)
print("cv: {}".format(cv))
print("Tag: {}".format(cv.Tag))
cv2 = v.getCosmeticVertexBySelection("Vertex4")
print("New Point: {}".format(cv2.Point))
#make CV from 3d
p3d = App.Vector(2.0, 2.0, 2.0)
print("3d point in: {}".format(p3d))
tag3d = v.makeCosmeticVertex3d(p3d)
cv3 = v.getCosmeticVertex(tag3d)
print("3d point out: {}".format(cv3.Point))
CosmeticEdge (CE) routines accessible from Python
dvp = App.ActiveDocument.View #CE's belong to views.
Make a CosmeticEdge from p1 to p2(View coordinates). Returns unique tag.
tag = dvp.makeCosmeticLine(p1, p2)
Make a CosmeticEdge at center with radius radius(View coordinates). Returns unique tag.
tag = dvp.makeCosmeticCircle(center, radius)
Make a CosmeticEdge at center with radius radius(View coordinates) from start angle to end angle. Returns unique tag.
tag = dvp.makeCosmeticCircleArc(center, radius, start, end)
Returns CosmeticEdge with unique id.
ce = dvp.getCosmeticEdge(id)
Returns CosmeticEdge by name (Edge25). Used in selections.
ce = dvp.getCosmeticEdgeBySelection(name)
Removes CosmeticEdge ce from View. Returns None.
dvp.removeCosmeticEdge(ce)
Removes all CosmeticLines from the View. Returns None.
dvp.clearCosmeticEdges()
CosmeticEdge attributes
Tag: unique identifier. String.
Format: appearance attributes (style, color, weight, visible). Tuple.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Py CosmeticEdge demo
import FreeCAD
import TechDraw
#points
org = App.Vector(0.0, 0.0, 0.0)
midTop = FreeCAD.Vector (1.0, 5.0, 0.0) # middle, top
midBot = FreeCAD.Vector(2.0, -5.0, 0.0) # middle, bottom
stdZ = FreeCAD.Vector(0.0, 0.0, 1.0)
center = FreeCAD.Vector(0.0, 0.0, 0.0)
arcCenter = FreeCAD.Vector(3.0, 3.0, 0.0)
vPt = FreeCAD.Vector(-3.0, 3.0, 0.0)
topRight = FreeCAD.Vector(5.0, 5.0, 0.0)
bottomLeft = FreeCAD.Vector(-5.0, -5.0, 0.0)
#angles
arcStart = -45
arcEnd = 45
#styles
solid = 1
dashed = 2
dotted = 3
#weights
weight15 = 0.15
weight75 = 0.75
#colors
pyRed = (1.0, 0.0, 0.0, 0.0)
pyBlue = (0.0, 1.0, 0.0, 0.0)
pyGreen = (0.0, 0.0, 1.0, 0.0)
pyBlack = (0.0, 0.0, 0.0, 0.0)
shadow = (0.1, 0.1, 0.1, 0.0)
radius = 5.0
style = dashed
weight = weight75
dvp = App.ActiveDocument.View
print(dvp)
print("making line")
tag = dvp.makeCosmeticLine(midTop,midBot,style, weight, pyBlue)
ce = dvp.getCosmeticEdge(tag)
print("line tag: {}".format(tag))
print("making diagonal")
dvp.makeCosmeticLine(bottomLeft,topRight,solid, weight, pyGreen)
print("making circle")
tag2 = dvp.makeCosmeticCircle(center, radius, style, weight, pyRed)
ce2 = dvp.getCosmeticEdge(tag2)
print("making circleArc")
dvp.makeCosmeticCircleArc(arcCenter, radius, arcStart, arcEnd, style, weight, shadow)
#replace
print("making new format")
oldFormat = ce.Format
newFormat = (dotted,oldFormat[1], pyRed, True)
ce.Format = newFormat
print("removing CE with tag: {}".format(tag2))
dvp.removeCosmeticEdge(tag2)
print("finished")
CenterLine (CL) routines accessible from Python
Makes a new CenterLine
tag = dvp.makeCenterLine(subObjs, mode)
Retrieves CenterLine with unique tag.
cl = dvp.getCenterLine(tag)
Retrieves CenterLine by subobject name. Used in selection.
cl = dvp.getCenterLine("Edge5")
Removes CenterLine cl from View. Returns None.
dvp.removeCenterLine(cl)
CenterLine Attributes
Tag: unique identifier. String. ReadOnly.
Type: 0 - face, 1 - 2 line, 2 - 2 point. Integer. ReadOnly.
Mode: 0 - vert, 1 - horiz, 2 - aligned. Integer.
Format: appearance attributes (style, color, weight, visible). Tuple.
HorizShift: left/right offset. Float.
VertShift: up/down offset. Float.
Rotation: rotation in degrees. Float.
Extension: additional length to be added. Float.
Flip: reverse the order of points for 2 point CenterLine. Boolean.
Edges: names of source edges. List of string.
Faces: names of source faces. List of string.
Points: names of source points (Vertices). List of string.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Py CenterLine demo
import FreeCAD
import Part
import TechDraw
start = FreeCAD.Vector (1.0, 5.0, 0.0) # middle, top
end = FreeCAD.Vector(1.0, -5.0, 0.0) # middle, bottom
faceNames = ["Face0"]
edgeNames = ["Edge2", "Edge3"]
vertNames = ["Vertex1", "Vertex2"]
vMode = 0 #vertical
hMode = 1 #horizontal
aMode = 2 #aligned
#styles
solid = 1
dashed = 2
dotted = 3
#weights
weight15 = 0.15
weight75 = 0.75
#colors
pyRed = (1.0, 0.0, 0.0, 0.0)
pyBlue = (0.0, 1.0, 0.0, 0.0)
pyBlack = (0.0, 0.0, 0.0, 0.0)
#adjustments
hShift = 1.0
vShift = 1.0
extend = 4.0
rotate = 30.0
flip = False;
dvp = App.ActiveDocument.View
print("making face CenterLine")
tag = dvp.makeCenterLine(faceNames,vMode)
cline = dvp.getCenterLine(tag)
print("cline tag: {}".format(tag))
#replace
print("making new format")
oldFormat = cline.Format
newFormat = (dotted,oldFormat[1], pyRed, True)
cline.Format = newFormat
cline.Extension = 10.0
print("making edgeCenterLine")
cline2 = dvp.makeCenterLine(edgeNames,hMode)
print("making vertexCenterLine")
cline3 = dvp.makeCenterLine(vertNames,aMode)
print("finished")
DrawViewPart Geometry
[topoShapeEdge] = dvp.getVisibleEdges()
[topoShapeEdge] = dvp.getHiddenEdges()
topoShapeEdge = dvp.getEdgeByIndex(i)
topoShapeEdge = dvp.getEdgeBySelection("Edge1")
topoShapeVertex = dvp.getVertexByIndex(i)
topoShapeVertex = dvp.getVertexBySelection("Vertex1")
Redraw the graphic for this View.
dvp.requestPaint()
Questa pagina è recuperata da https://wiki.freecad.org/TechDraw_API