def getSVG(obj,
scale=1,
linewidth=0.35,
fontsize=12,
fillstyle="shape color",
direction=None,
linestyle=None,
color=None,
linespacing=None,
techdraw=False,
rotation=0,
fillSpaces=False,
override=True):
'''getSVG(object,[scale], [linewidth],[fontsize],[fillstyle],[direction],[linestyle],[color],[linespacing]):
returns a string containing a SVG representation of the given object,
with the given linewidth and fontsize (used if the given object contains
any text). You can also supply an arbitrary projection vector. the
scale parameter allows to scale linewidths down, so they are resolution-independant.'''
import Part, DraftGeomUtils
# if this is a group, gather all the svg views of its children
if hasattr(obj, "isDerivedFrom"):
if obj.isDerivedFrom("App::DocumentObjectGroup") or getType(
obj) == "Layer":
svg = ""
for child in obj.Group:
svg += getSVG(child, scale, linewidth, fontsize, fillstyle,
direction, linestyle, color, linespacing,
techdraw, rotation, fillSpaces, override)
return svg
pathdata = []
svg = ""
linewidth = float(linewidth) / scale
if not override:
if hasattr(obj, "ViewObject"):
if hasattr(obj.ViewObject, "LineWidth"):
if hasattr(obj.ViewObject.LineWidth, "Value"):
lw = obj.ViewObject.LineWidth.Value
else:
lw = obj.ViewObject.LineWidth
linewidth = lw * linewidth
fontsize = (float(fontsize) / scale) / 2
if linespacing:
linespacing = float(linespacing) / scale
else:
linespacing = 0.5
#print obj.Label," line spacing ",linespacing,"scale ",scale
pointratio = .75 # the number of times the dots are smaller than the arrow size
plane = None
if direction:
if isinstance(direction, FreeCAD.Vector):
if direction != Vector(0, 0, 0):
plane = WorkingPlane.plane()
plane.alignToPointAndAxis_SVG(Vector(0, 0, 0),
direction.negative().negative(),
0)
elif isinstance(direction, WorkingPlane.plane):
plane = direction
stroke = "#000000"
if color and override:
if "#" in color:
stroke = color
else:
stroke = getrgb(color)
elif gui:
if hasattr(obj, "ViewObject"):
if hasattr(obj.ViewObject, "LineColor"):
stroke = getrgb(obj.ViewObject.LineColor)
elif hasattr(obj.ViewObject, "TextColor"):
stroke = getrgb(obj.ViewObject.TextColor)
lstyle = "none"
if override:
lstyle = getLineStyle(linestyle, scale)
else:
if hasattr(obj, "ViewObject"):
if hasattr(obj.ViewObject, "DrawStyle"):
lstyle = getLineStyle(obj.ViewObject.DrawStyle, scale)
def getPath(edges=[], wires=[], pathname=None):
svg = "<path "
if pathname is None:
svg += 'id="%s" ' % obj.Name
elif pathname != "":
svg += 'id="%s" ' % pathname
svg += ' d="'
if not wires:
egroups = Part.sortEdges(edges)
else:
egroups = []
first = True
for w in wires:
w1 = w.copy()
if first:
first = False
else:
# invert further wires to create holes
w1 = DraftGeomUtils.invert(w1)
w1.fixWire()
egroups.append(Part.__sortEdges__(w1.Edges))
for egroupindex, edges in enumerate(egroups):
edata = ""
vs = () #skipped for the first edge
for edgeindex, e in enumerate(edges):
previousvs = vs
# vertexes of an edge (reversed if needed)
vs = e.Vertexes
if previousvs:
if (vs[0].Point - previousvs[-1].Point).Length > 1e-6:
vs.reverse()
if edgeindex == 0:
v = getProj(vs[0].Point, plane)
edata += 'M ' + str(v.x) + ' ' + str(v.y) + ' '
else:
if (vs[0].Point - previousvs[-1].Point).Length > 1e-6:
raise ValueError('edges not ordered')
iscircle = DraftGeomUtils.geomType(e) == "Circle"
isellipse = DraftGeomUtils.geomType(e) == "Ellipse"
if iscircle or isellipse:
import math
if hasattr(FreeCAD, "DraftWorkingPlane"):
drawing_plane_normal = FreeCAD.DraftWorkingPlane.axis
else:
drawing_plane_normal = FreeCAD.Vector(0, 0, 1)
if plane: drawing_plane_normal = plane.axis
c = e.Curve
if round(c.Axis.getAngle(drawing_plane_normal),
2) in [0, 3.14]:
occversion = Part.OCC_VERSION.split(".")
done = False
if (int(occversion[0]) >= 7) and (int(occversion[1]) >=
1):
# if using occ >= 7.1, use HLR algorithm
import Drawing
snip = Drawing.projectToSVG(
e, drawing_plane_normal)
if snip:
try:
a = "A " + snip.split("path d=\"")[
1].split("\"")[0].split("A")[1]
except:
pass
else:
edata += a
done = True
if not done:
if len(e.Vertexes
) == 1 and iscircle: #complete curve
svg = getCircle(e)
return svg
elif len(e.Vertexes) == 1 and isellipse:
#svg = getEllipse(e)
#return svg
endpoints = [
getProj(
c.value((c.LastParameter -
c.FirstParameter) / 2.0),
plane),
getProj(vs[-1].Point, plane)
]
else:
endpoints = [getProj(vs[-1].Point, plane)]
# arc
if iscircle:
rx = ry = c.Radius
rot = 0
else: #ellipse
rx = c.MajorRadius
ry = c.MinorRadius
rot = math.degrees(c.AngleXU * (c.Axis * \
FreeCAD.Vector(0,0,1)))
if rot > 90:
rot -= 180
if rot < -90:
rot += 180
#be careful with the sweep flag
flag_large_arc = (((e.ParameterRange[1] - \
e.ParameterRange[0]) / math.pi) % 2) > 1
#flag_sweep = (c.Axis * drawing_plane_normal >= 0) \
# == (e.LastParameter > e.FirstParameter)
# == (e.Orientation == "Forward")
# other method: check the direction of the angle between tangents
t1 = e.tangentAt(e.FirstParameter)
t2 = e.tangentAt(
e.FirstParameter +
(e.LastParameter - e.FirstParameter) / 10)
flag_sweep = (DraftVecUtils.angle(
t1, t2, drawing_plane_normal) < 0)
for v in endpoints:
edata += 'A %s %s %s %s %s %s %s ' % \
(str(rx),str(ry),str(rot),\
str(int(flag_large_arc)),\
str(int(flag_sweep)),str(v.x),str(v.y))
else:
edata += getDiscretized(e, plane)
elif DraftGeomUtils.geomType(e) == "Line":
v = getProj(vs[-1].Point, plane)
edata += 'L ' + str(v.x) + ' ' + str(v.y) + ' '
else:
bspline = e.Curve.toBSpline(e.FirstParameter,
e.LastParameter)
if bspline.Degree > 3 or bspline.isRational():
try:
bspline = bspline.approximateBSpline(
0.05, 50, 3, 'C0')
except RuntimeError:
print("Debug: unable to approximate bspline")
if bspline.Degree <= 3 and not bspline.isRational():
for bezierseg in bspline.toBezier():
if bezierseg.Degree > 3: #should not happen
raise AssertionError
elif bezierseg.Degree == 1:
edata += 'L '
elif bezierseg.Degree == 2:
edata += 'Q '
elif bezierseg.Degree == 3:
edata += 'C '
for pole in bezierseg.getPoles()[1:]:
v = getProj(pole, plane)
edata += str(v.x) + ' ' + str(v.y) + ' '
else:
print("Debug: one edge (hash ",e.hashCode(),\
") has been discretized with parameter 0.1")
for linepoint in bspline.discretize(0.1)[1:]:
v = getProj(linepoint, plane)
edata += 'L ' + str(v.x) + ' ' + str(v.y) + ' '
if fill != 'none':
edata += 'Z '
if edata in pathdata:
# do not draw a path on another identical path
return ""
else:
svg += edata
pathdata.append(edata)
svg += '" '
svg += 'stroke="' + stroke + '" '
svg += 'stroke-width="' + str(linewidth) + ' px" '
svg += 'style="stroke-width:' + str(linewidth)
svg += ';stroke-miterlimit:4'
svg += ';stroke-dasharray:' + lstyle
svg += ';fill:' + fill
try:
svg += ';fill-opacity:' + str(fill_opacity)
except NameError:
pass
svg += ';fill-rule: evenodd "'
svg += '/>\n'
return svg
def getCircle(edge):
cen = getProj(edge.Curve.Center, plane)
rad = edge.Curve.Radius
if hasattr(FreeCAD, "DraftWorkingPlane"):
drawing_plane_normal = FreeCAD.DraftWorkingPlane.axis
else:
drawing_plane_normal = FreeCAD.Vector(0, 0, 1)
if plane: drawing_plane_normal = plane.axis
if round(edge.Curve.Axis.getAngle(drawing_plane_normal),
2) in [0, 3.14]:
# perpendicular projection: circle
svg = '<circle cx="' + str(cen.x)
svg += '" cy="' + str(cen.y)
svg += '" r="' + str(rad) + '" '
else:
# any other projection: ellipse
svg = '<path d="'
svg += getDiscretized(edge, plane)
svg += '" '
svg += 'stroke="' + stroke + '" '
svg += 'stroke-width="' + str(linewidth) + ' px" '
svg += 'style="stroke-width:' + str(linewidth)
svg += ';stroke-miterlimit:4'
svg += ';stroke-dasharray:' + lstyle
svg += ';fill:' + fill + '"'
svg += '/>\n'
return svg
def getEllipse(edge):
cen = getProj(edge.Curve.Center, plane)
mir = edge.Curve.MinorRadius
mar = edge.Curve.MajorRadius
svg = '<ellipse cx="' + str(cen.x)
svg += '" cy="' + str(cen.y)
svg += '" rx="' + str(mar)
svg += '" ry="' + str(mir) + '" '
svg += 'stroke="' + stroke + '" '
svg += 'stroke-width="' + str(linewidth) + ' px" '
svg += 'style="stroke-width:' + str(linewidth)
svg += ';stroke-miterlimit:4'
svg += ';stroke-dasharray:' + lstyle
svg += ';fill:' + fill + '"'
svg += '/>\n'
return svg
def getArrow(arrowtype, point, arrowsize, color, linewidth, angle=0):
svg = ""
if gui:
if not obj.ViewObject:
return svg
if obj.ViewObject.ArrowType == "Circle":
svg += '<circle cx="' + str(point.x) + '" cy="' + str(point.y)
svg += '" r="' + str(arrowsize) + '" '
svg += 'fill="none" stroke="' + color + '" '
svg += 'style="stroke-width:' + str(
linewidth) + ';stroke-miterlimit:4;stroke-dasharray:none" '
svg += 'freecad:skip="1"'
svg += '/>\n'
elif obj.ViewObject.ArrowType == "Dot":
svg += '<circle cx="' + str(point.x) + '" cy="' + str(point.y)
svg += '" r="' + str(arrowsize) + '" '
svg += 'fill="' + color + '" stroke="none" '
svg += 'style="stroke-miterlimit:4;stroke-dasharray:none" '
svg += 'freecad:skip="1"'
svg += '/>\n'
elif obj.ViewObject.ArrowType == "Arrow":
svg += '<path transform="rotate(' + str(math.degrees(angle))
svg += ',' + str(point.x) + ',' + str(point.y) + ') '
svg += 'translate(' + str(point.x) + ',' + str(point.y) + ') '
svg += 'scale(' + str(arrowsize) + ',' + str(
arrowsize) + ')" freecad:skip="1" '
svg += 'fill="' + color + '" stroke="none" '
svg += 'style="stroke-miterlimit:4;stroke-dasharray:none" '
svg += 'd="M 0 0 L 4 1 L 4 -1 Z"/>\n'
elif obj.ViewObject.ArrowType == "Tick":
svg += '<path transform="rotate(' + str(math.degrees(angle))
svg += ',' + str(point.x) + ',' + str(point.y) + ') '
svg += 'translate(' + str(point.x) + ',' + str(point.y) + ') '
svg += 'scale(' + str(arrowsize) + ',' + str(
arrowsize) + ')" freecad:skip="1" '
svg += 'fill="' + color + '" stroke="none" '
svg += 'style="stroke-miterlimit:4;stroke-dasharray:none" '
svg += 'd="M -1 -2 L 0 2 L 1 2 L 0 -2 Z"/>\n'
elif obj.ViewObject.ArrowType == "Tick-2":
svg += '<line transform="rotate(' + str(
math.degrees(angle) + 45)
svg += ',' + str(point.x) + ',' + str(point.y) + ') '
svg += 'translate(' + str(point.x) + ',' + str(point.y) + ') '
svg += '" freecad:skip="1" '
svg += 'fill="none" stroke="' + color + '" '
svg += 'style="stroke-dasharray:none;stroke-linecap:square;'
svg += 'stroke-width:' + str(linewidth) + '" '
svg += 'x1="-' + str(arrowsize * 2) + '" y1="0" '
svg += 'x2="' + str(arrowsize * 2) + '" y2="0" />\n'
else:
print("getSVG: arrow type not implemented")
return svg
def getOvershoot(point, shootsize, color, linewidth, angle=0):
svg = '<line transform="rotate(' + str(math.degrees(angle))
svg += ',' + str(point.x) + ',' + str(point.y) + ') '
svg += 'translate(' + str(point.x) + ',' + str(point.y) + ') '
svg += '" freecad:skip="1" '
svg += 'fill="none" stroke="' + color + '" '
svg += 'style="stroke-dasharray:none;stroke-linecap:square;'
svg += 'stroke-width:' + str(linewidth) + '" '
svg += 'x1="0" y1="0" '
svg += 'x2="' + str(shootsize * -1) + '" y2="0" />\n'
return svg
def getText(tcolor,
fontsize,
fontname,
angle,
base,
text,
linespacing=0.5,
align="center",
flip=True):
if isinstance(angle, FreeCAD.Rotation):
if not plane:
angle = angle.Angle
else:
if plane.axis.getAngle(angle.Axis) < 0.001:
angle = angle.Angle
elif abs(plane.axis.getAngle(angle.Axis) - math.pi) < 0.001:
if abs(angle.Angle) > 0.1:
angle = -angle.Angle
else:
angle = angle.Angle
elif abs(plane.axis.getAngle(angle.Axis) -
math.pi / 2) < 0.001:
return "" # text is perpendicular to view, so it shouldn't appear
else:
angle = 0 #TODO maybe there is something better to do here?
if not isinstance(text, list):
text = text.split("\n")
if align.lower() == "center":
anchor = "middle"
elif align.lower() == "left":
anchor = "start"
else:
anchor = "end"
if techdraw:
svg = ""
for i in range(len(text)):
t = text[i].replace("&", "&").replace("<", "<").replace(
">", ">")
if six.PY2 and not isinstance(t, six.text_type):
t = t.decode("utf8")
# possible workaround if UTF8 is unsupported
# import unicodedata
# t = u"".join([c for c in unicodedata.normalize("NFKD",t) if not unicodedata.combining(c)]).encode("utf8")
svg += '<text stroke-width="0" stroke="' + tcolor + '" fill="' + tcolor + '" font-size="' + str(
fontsize) + '" '
svg += 'style="text-anchor:' + anchor + ';text-align:' + align.lower(
) + ';'
svg += 'font-family:' + fontname + '" '
svg += 'transform="rotate(' + str(math.degrees(angle))
svg += ',' + str(
base.x) + ',' + str(base.y - linespacing * i) + ') '
svg += 'translate(' + str(
base.x) + ',' + str(base.y - linespacing * i) + ') '
svg += 'scale(1,-1)" '
#svg += '" freecad:skip="1"'
svg += '>\n' + t + '</text>\n'
else:
svg = '<text stroke-width="0" stroke="' + tcolor + '" fill="'
svg += tcolor + '" font-size="'
svg += str(fontsize) + '" '
svg += 'style="text-anchor:' + anchor + ';text-align:' + align.lower(
) + ';'
svg += 'font-family:' + fontname + '" '
svg += 'transform="rotate(' + str(math.degrees(angle))
svg += ',' + str(base.x) + ',' + str(base.y) + ') '
if flip:
svg += 'translate(' + str(base.x) + ',' + str(base.y) + ')'
else:
svg += 'translate(' + str(base.x) + ',' + str(-base.y) + ')'
#svg += 'scale('+str(tmod/2000)+',-'+str(tmod/2000)+') '
if flip:
svg += ' scale(1,-1) '
else:
svg += ' scale(1,1) '
svg += '" freecad:skip="1"'
svg += '>\n'
if len(text) == 1:
try:
svg += text[0].replace("&", "&").replace(
"<", "<").replace(">", ">")
except:
svg += text[0].decode("utf8").replace(
"&", "&").replace("<",
"<").replace(">", ">")
else:
for i in range(len(text)):
if i == 0:
svg += '<tspan>'
else:
svg += '<tspan x="0" dy="' + str(linespacing) + '">'
try:
svg += text[i].replace("&", "&").replace(
"<", "<").replace(">", ">")
except:
svg += text[i].decode("utf8").replace(
"&", "&").replace("<",
"<").replace(">", ">")
svg += '</tspan>\n'
svg += '</text>\n'
return svg
if not obj:
pass
elif isinstance(obj, Part.Shape):
if "#" in fillstyle:
fill = fillstyle
elif fillstyle == "shape color":
fill = "#888888"
else:
fill = 'url(#' + fillstyle + ')'
svg += getPath(obj.Edges, pathname="")
elif getType(obj) in ["Dimension", "LinearDimension"]:
if gui:
if not obj.ViewObject:
print(
"export of dimensions to SVG is only available in GUI mode"
)
elif obj.ViewObject.Proxy:
if hasattr(obj.ViewObject.Proxy, "p1"):
prx = obj.ViewObject.Proxy
ts = (len(prx.string) *
obj.ViewObject.FontSize.Value) / 4.0
rm = ((prx.p3.sub(prx.p2)).Length / 2.0) - ts
p2a = getProj(
prx.p2.add(
DraftVecUtils.scaleTo(prx.p3.sub(prx.p2), rm)),
plane)
p2b = getProj(
prx.p3.add(
DraftVecUtils.scaleTo(prx.p2.sub(prx.p3), rm)),
plane)
p1 = getProj(prx.p1, plane)
p2 = getProj(prx.p2, plane)
p3 = getProj(prx.p3, plane)
p4 = getProj(prx.p4, plane)
tbase = getProj(prx.tbase, plane)
r = prx.textpos.rotation.getValue().getValue()
rv = FreeCAD.Rotation(r[0], r[1], r[2], r[3]).multVec(
FreeCAD.Vector(1, 0, 0))
angle = -DraftVecUtils.angle(getProj(rv, plane))
#angle = -DraftVecUtils.angle(p3.sub(p2))
svg = ''
nolines = False
if hasattr(obj.ViewObject, "ShowLine"):
if not obj.ViewObject.ShowLine:
nolines = True
# drawing lines
if not nolines:
svg += '<path '
if obj.ViewObject.DisplayMode == "2D":
tangle = angle
if tangle > math.pi / 2:
tangle = tangle - math.pi
#elif (tangle <= -math.pi/2) or (tangle > math.pi/2):
# tangle = tangle+math.pi
#tbase = tbase.add(DraftVecUtils.rotate(Vector(0,2/scale,0),tangle))
if rotation != 0:
#print "dim: tangle:",tangle," rot: ",rotation," text: ",prx.string
if abs(tangle + math.radians(rotation)) < 0.0001:
tangle += math.pi
tbase = tbase.add(
DraftVecUtils.rotate(
Vector(0, 2 / scale, 0), tangle))
if not nolines:
svg += 'd="M ' + str(p1.x) + ' ' + str(p1.y) + ' '
svg += 'L ' + str(p2.x) + ' ' + str(p2.y) + ' '
svg += 'L ' + str(p3.x) + ' ' + str(p3.y) + ' '
svg += 'L ' + str(p4.x) + ' ' + str(p4.y) + '" '
else:
tangle = 0
if rotation != 0:
tangle = -math.radians(rotation)
tbase = tbase.add(Vector(0, -2.0 / scale, 0))
if not nolines:
svg += 'd="M ' + str(p1.x) + ' ' + str(p1.y) + ' '
svg += 'L ' + str(p2.x) + ' ' + str(p2.y) + ' '
svg += 'L ' + str(p2a.x) + ' ' + str(p2a.y) + ' '
svg += 'M ' + str(p2b.x) + ' ' + str(p2b.y) + ' '
svg += 'L ' + str(p3.x) + ' ' + str(p3.y) + ' '
svg += 'L ' + str(p4.x) + ' ' + str(p4.y) + '" '
if not nolines:
svg += 'fill="none" stroke="'
svg += stroke + '" '
svg += 'stroke-width="' + str(linewidth) + ' px" '
svg += 'style="stroke-width:' + str(linewidth)
svg += ';stroke-miterlimit:4;stroke-dasharray:none" '
svg += 'freecad:basepoint1="' + str(p1.x) + ' ' + str(
p1.y) + '" '
svg += 'freecad:basepoint2="' + str(p4.x) + ' ' + str(
p4.y) + '" '
svg += 'freecad:dimpoint="' + str(p2.x) + ' ' + str(
p2.y) + '"'
svg += '/>\n'
# drawing dimension and extension lines overshoots
if hasattr(obj.ViewObject, "DimOvershoot"
) and obj.ViewObject.DimOvershoot.Value:
shootsize = obj.ViewObject.DimOvershoot.Value / pointratio
svg += getOvershoot(p2, shootsize, stroke,
linewidth, angle)
svg += getOvershoot(p3, shootsize, stroke,
linewidth, angle + math.pi)
if hasattr(obj.ViewObject, "ExtOvershoot"
) and obj.ViewObject.ExtOvershoot.Value:
shootsize = obj.ViewObject.ExtOvershoot.Value / pointratio
shootangle = -DraftVecUtils.angle(p1.sub(p2))
svg += getOvershoot(p2, shootsize, stroke,
linewidth, shootangle)
svg += getOvershoot(p3, shootsize, stroke,
linewidth, shootangle)
# drawing arrows
if hasattr(obj.ViewObject, "ArrowType"):
arrowsize = obj.ViewObject.ArrowSize.Value / pointratio
if hasattr(obj.ViewObject, "FlipArrows"):
if obj.ViewObject.FlipArrows:
angle = angle + math.pi
svg += getArrow(obj.ViewObject.ArrowType, p2,
arrowsize, stroke, linewidth,
angle)
svg += getArrow(obj.ViewObject.ArrowType, p3,
arrowsize, stroke, linewidth,
angle + math.pi)
# drawing text
svg += getText(stroke, fontsize, obj.ViewObject.FontName,
tangle, tbase, prx.string)
elif getType(obj) == "AngularDimension":
if gui:
if not obj.ViewObject:
print(
"export of dimensions to SVG is only available in GUI mode"
)
elif obj.ViewObject.Proxy:
if hasattr(obj.ViewObject.Proxy, "circle"):
prx = obj.ViewObject.Proxy
# drawing arc
fill = "none"
if obj.ViewObject.DisplayMode == "2D":
svg += getPath([prx.circle])
else:
if hasattr(prx, "circle1"):
svg += getPath([prx.circle1])
svg += getPath([prx.circle2])
else:
svg += getPath([prx.circle])
# drawing arrows
if hasattr(obj.ViewObject, "ArrowType"):
p2 = getProj(prx.p2, plane)
p3 = getProj(prx.p3, plane)
arrowsize = obj.ViewObject.ArrowSize.Value / pointratio
arrowlength = 4 * obj.ViewObject.ArrowSize.Value
u1 = getProj(
(prx.circle.valueAt(prx.circle.FirstParameter +
arrowlength)
).sub(
prx.circle.valueAt(
prx.circle.FirstParameter)), plane)
u2 = getProj(
(prx.circle.valueAt(prx.circle.LastParameter -
arrowlength)
).sub(prx.circle.valueAt(
prx.circle.LastParameter)), plane)
angle1 = -DraftVecUtils.angle(u1)
angle2 = -DraftVecUtils.angle(u2)
if hasattr(obj.ViewObject, "FlipArrows"):
if obj.ViewObject.FlipArrows:
angle1 = angle1 + math.pi
angle2 = angle2 + math.pi
svg += getArrow(obj.ViewObject.ArrowType, p2,
arrowsize, stroke, linewidth, angle1)
svg += getArrow(obj.ViewObject.ArrowType, p3,
arrowsize, stroke, linewidth, angle2)
# drawing text
if obj.ViewObject.DisplayMode == "2D":
t = prx.circle.tangentAt(prx.circle.FirstParameter +
(prx.circle.LastParameter -
prx.circle.FirstParameter) /
2.0)
t = getProj(t, plane)
tangle = DraftVecUtils.angle(t)
if (tangle <= -math.pi / 2) or (tangle > math.pi / 2):
tangle = tangle + math.pi
tbase = getProj(
prx.circle.valueAt(prx.circle.FirstParameter +
(prx.circle.LastParameter -
prx.circle.FirstParameter) /
2.0), plane)
tbase = tbase.add(
DraftVecUtils.rotate(Vector(0, 2.0 / scale, 0),
tangle))
#print(tbase)
else:
tangle = 0
tbase = getProj(prx.tbase, plane)
svg += getText(stroke, fontsize, obj.ViewObject.FontName,
tangle, tbase, prx.string)
elif getType(obj) == "Label":
if getattr(obj.ViewObject, "Line",
True): # some Labels may have no Line property
def format_point(coords, action='L'):
return "{action}{x},{y}".format(x=coords.x,
y=coords.y,
action=action)
# Draw multisegment line
proj_points = list(map(lambda x: getProj(x, plane), obj.Points))
path_dir_list = [format_point(proj_points[0], action='M')]
path_dir_list += map(format_point, proj_points[1:])
path_dir_str = " ".join(path_dir_list)
svg_path = '<path fill="none" stroke="{stroke}" stroke-width="{linewidth}" d="{directions}"/>'.format(
stroke=stroke, linewidth=linewidth, directions=path_dir_str)
svg += svg_path
# Draw arrow.
# We are different here from 3D view
# if Line is set to 'off', no arrow is drawn
if hasattr(obj.ViewObject, "ArrowType") and len(obj.Points) >= 2:
last_segment = FreeCAD.Vector(obj.Points[-1] - obj.Points[-2])
angle = -DraftVecUtils.angle(getProj(last_segment,
plane)) + math.pi
svg += getArrow(arrowtype=obj.ViewObject.ArrowType,
point=proj_points[-1],
arrowsize=obj.ViewObject.ArrowSize.Value /
pointratio,
color=stroke,
linewidth=linewidth,
angle=angle)
# print text
if gui:
if not obj.ViewObject:
print("export of texts to SVG is only available in GUI mode")
else:
fontname = obj.ViewObject.TextFont
position = getProj(obj.Placement.Base, plane)
rotation = obj.Placement.Rotation
justification = obj.ViewObject.TextAlignment
text = obj.Text
svg += getText(stroke, fontsize, fontname, rotation, position,
text, linespacing, justification)
elif getType(obj) in ["Annotation", "DraftText"]:
"returns an svg representation of a document annotation"
if gui:
if not obj.ViewObject:
print("export of texts to SVG is only available in GUI mode")
else:
n = obj.ViewObject.FontName
if getType(obj) == "Annotation":
p = getProj(obj.Position, plane)
r = obj.ViewObject.Rotation.getValueAs("rad")
t = obj.LabelText
else: # DraftText
p = getProj(obj.Placement.Base, plane)
r = obj.Placement.Rotation
t = obj.Text
j = obj.ViewObject.Justification
svg += getText(stroke, fontsize, n, r, p, t, linespacing, j)
elif getType(obj) == "Axis":
"returns the SVG representation of an Arch Axis system"
if gui:
if not obj.ViewObject:
print("export of axes to SVG is only available in GUI mode")
else:
vobj = obj.ViewObject
lorig = lstyle
fill = 'none'
rad = vobj.BubbleSize.Value / 2
n = 0
for e in obj.Shape.Edges:
lstyle = lorig
svg += getPath([e])
lstyle = "none"
pos = ["Start"]
if hasattr(vobj, "BubblePosition"):
if vobj.BubblePosition == "Both":
pos = ["Start", "End"]
else:
pos = [vobj.BubblePosition]
for p in pos:
if p == "Start":
p1 = e.Vertexes[0].Point
p2 = e.Vertexes[1].Point
else:
p1 = e.Vertexes[1].Point
p2 = e.Vertexes[0].Point
dv = p2.sub(p1)
dv.normalize()
center = p2.add(dv.scale(rad, rad, rad))
svg += getCircle(Part.makeCircle(rad, center))
if hasattr(vobj.Proxy, "bubbletexts"):
if len(vobj.Proxy.bubbletexts) >= n:
svg += '<text fill="' + stroke + '" '
svg += 'font-size="' + str(rad) + '" '
svg += 'style="text-anchor:middle;'
svg += 'text-align:center;'
svg += 'font-family: sans;" '
svg += 'transform="translate(' + str(
center.x +
rad / 4.0) + ',' + str(center.y -
rad / 3.0) + ') '
svg += 'scale(1,-1)"> '
svg += '<tspan>' + obj.ViewObject.Proxy.bubbletexts[
n].string.getValues()[0] + '</tspan>\n'
svg += '</text>\n'
n += 1
lstyle = lorig
elif getType(obj) == "Pipe":
fill = stroke
if obj.Base and obj.Diameter:
svg += getPath(obj.Base.Shape.Edges)
for f in obj.Shape.Faces:
if len(f.Edges) == 1:
if isinstance(f.Edges[0].Curve, Part.Circle):
svg += getCircle(f.Edges[0])
elif getType(obj) == "Rebar":
fill = "none"
if obj.Proxy:
if not hasattr(obj.Proxy, "wires"):
obj.Proxy.execute(obj)
if hasattr(obj.Proxy, "wires"):
svg += getPath(wires=obj.Proxy.wires)
elif getType(obj) == "PipeConnector":
pass
elif getType(obj) == "Space":
"returns an SVG fragment for the text of a space"
if gui:
if not obj.ViewObject:
print("export of spaces to SVG is only available in GUI mode")
else:
if fillSpaces:
if hasattr(obj, "Proxy"):
if not hasattr(obj.Proxy, "face"):
obj.Proxy.getArea(obj, notouch=True)
if hasattr(obj.Proxy, "face"):
# setting fill
if gui:
fill = getrgb(obj.ViewObject.ShapeColor,
testbw=False)
fill_opacity = 1 - (
obj.ViewObject.Transparency / 100.0)
else:
fill = "#888888"
svg += getPath(wires=[obj.Proxy.face.OuterWire])
c = getrgb(obj.ViewObject.TextColor)
n = obj.ViewObject.FontName
a = 0
if rotation != 0:
a = math.radians(rotation)
t1 = obj.ViewObject.Proxy.text1.string.getValues()
t2 = obj.ViewObject.Proxy.text2.string.getValues()
scale = obj.ViewObject.FirstLine.Value / obj.ViewObject.FontSize.Value
f1 = fontsize * scale
p2 = obj.Placement.multVec(
FreeCAD.Vector(obj.ViewObject.Proxy.coords.translation.
getValue().getValue()))
lspc = FreeCAD.Vector(obj.ViewObject.Proxy.header.translation.
getValue().getValue())
p1 = p2.add(lspc)
j = obj.ViewObject.TextAlign
t3 = getText(c,
f1,
n,
a,
getProj(p1, plane),
t1,
linespacing,
j,
flip=True)
svg += t3
if t2:
ofs = FreeCAD.Vector(0, -lspc.Length, 0)
if a:
ofs = FreeCAD.Rotation(FreeCAD.Vector(0, 0, 1),
-rotation).multVec(ofs)
t4 = getText(c,
fontsize,
n,
a,
getProj(p1, plane).add(ofs),
t2,
linespacing,
j,
flip=True)
svg += t4
elif obj.isDerivedFrom('Part::Feature'):
if obj.Shape.isNull():
return ''
# setting fill
if obj.Shape.Faces:
if gui:
try:
m = obj.ViewObject.DisplayMode
except AttributeError:
m = None
if (m != "Wireframe"):
if fillstyle == "shape color":
fill = getrgb(obj.ViewObject.ShapeColor, testbw=False)
fill_opacity = 1 - (obj.ViewObject.Transparency /
100.0)
else:
fill = 'url(#' + fillstyle + ')'
svg += getPattern(fillstyle)
else:
fill = "none"
else:
fill = "#888888"
else:
fill = 'none'
if len(obj.Shape.Vertexes) > 1:
wiredEdges = []
if obj.Shape.Faces:
for i, f in enumerate(obj.Shape.Faces):
# place outer wire first
wires = [f.OuterWire]
wires.extend([
w for w in f.Wires
if w.hashCode() != f.OuterWire.hashCode()
])
svg += getPath(wires=f.Wires,pathname='%s_f%04d' % \
(obj.Name,i))
wiredEdges.extend(f.Edges)
else:
for i, w in enumerate(obj.Shape.Wires):
svg += getPath(w.Edges,pathname='%s_w%04d' % \
(obj.Name,i))
wiredEdges.extend(w.Edges)
if len(wiredEdges) != len(obj.Shape.Edges):
for i, e in enumerate(obj.Shape.Edges):
if (DraftGeomUtils.findEdge(e, wiredEdges) is None):
svg += getPath([e],pathname='%s_nwe%04d' % \
(obj.Name,i))
else:
# closed circle or spline
if obj.Shape.Edges:
if isinstance(obj.Shape.Edges[0].Curve, Part.Circle):
svg = getCircle(obj.Shape.Edges[0])
else:
svg = getPath(obj.Shape.Edges)
if FreeCAD.GuiUp:
if hasattr(obj.ViewObject, "EndArrow") and hasattr(
obj.ViewObject,
"ArrowType") and (len(obj.Shape.Vertexes) > 1):
if obj.ViewObject.EndArrow:
p1 = getProj(obj.Shape.Vertexes[-1].Point, plane)
p2 = getProj(obj.Shape.Vertexes[-2].Point, plane)
angle = -DraftVecUtils.angle(p2.sub(p1))
arrowsize = obj.ViewObject.ArrowSize.Value / pointratio
svg += getArrow(obj.ViewObject.ArrowType, p1, arrowsize,
stroke, linewidth, angle)
# techdraw expects bottom-to-top coordinates
if techdraw:
svg = '<g transform ="scale(1,-1)">\n ' + svg + '</g>\n'
return svg
def getSVG(obj,scale=1,linewidth=0.35,fontsize=12,fillstyle="shape color",direction=None,linestyle=None,color=None,linespacing=None,techdraw=False,rotation=0):
'''getSVG(object,[scale], [linewidth],[fontsize],[fillstyle],[direction],[linestyle],[color],[linespacing]):
returns a string containing a SVG representation of the given object,
with the given linewidth and fontsize (used if the given object contains
any text). You can also supply an arbitrary projection vector. the
scale parameter allows to scale linewidths down, so they are resolution-independant.'''
# if this is a group, gather all the svg views of its children
if hasattr(obj,"isDerivedFrom"):
if obj.isDerivedFrom("App::DocumentObjectGroup"):
svg = ""
for child in obj.Group:
svg += getSVG(child,scale,linewidth,fontsize,fillstyle,direction,linestyle,color,linespacing,techdraw)
return svg
pathdata = []
svg = ""
linewidth = float(linewidth)/scale
fontsize = (float(fontsize)/scale)/2
if linespacing:
linespacing = float(linespacing)/scale
else:
linespacing = 0.5
#print obj.Label," line spacing ",linespacing,"scale ",scale
pointratio = .75 # the number of times the dots are smaller than the arrow size
plane = None
if direction:
if isinstance(direction,FreeCAD.Vector):
if direction != Vector(0,0,0):
plane = WorkingPlane.plane()
plane.alignToPointAndAxis_SVG(Vector(0,0,0),direction.negative().negative(),0)
elif isinstance(direction,WorkingPlane.plane):
plane = direction
stroke = "#000000"
if color:
if "#" in color:
stroke = color
else:
stroke = getrgb(color)
elif gui:
if hasattr(obj,"ViewObject"):
if hasattr(obj.ViewObject,"LineColor"):
stroke = getrgb(obj.ViewObject.LineColor)
def getPath(edges=[],wires=[],pathname=None):
import Part,DraftGeomUtils
svg = "<path "
if pathname is None:
svg += 'id="%s" ' % obj.Name
elif pathname != "":
svg += 'id="%s" ' % pathname
svg += ' d="'
if not wires:
egroups = Part.sortEdges(edges)
else:
egroups = []
for w in wires:
w1=w.copy()
w1.fixWire()
egroups.append(Part.__sortEdges__(w1.Edges))
for egroupindex, edges in enumerate(egroups):
edata = ""
vs=() #skipped for the first edge
for edgeindex,e in enumerate(edges):
previousvs = vs
# vertexes of an edge (reversed if needed)
vs = e.Vertexes
if previousvs:
if (vs[0].Point-previousvs[-1].Point).Length > 1e-6:
vs.reverse()
if edgeindex == 0:
v = getProj(vs[0].Point, plane)
edata += 'M '+ str(v.x) +' '+ str(v.y) + ' '
else:
if (vs[0].Point-previousvs[-1].Point).Length > 1e-6:
raise ValueError('edges not ordered')
iscircle = DraftGeomUtils.geomType(e) == "Circle"
isellipse = DraftGeomUtils.geomType(e) == "Ellipse"
if iscircle or isellipse:
import math
if hasattr(FreeCAD,"DraftWorkingPlane"):
drawing_plane_normal = FreeCAD.DraftWorkingPlane.axis
else:
drawing_plane_normal = FreeCAD.Vector(0,0,1)
if plane: drawing_plane_normal = plane.axis
c = e.Curve
if round(c.Axis.getAngle(drawing_plane_normal),2) in [0,3.14]:
occversion = Part.OCC_VERSION.split(".")
done = False
if (int(occversion[0]) >= 7) and (int(occversion[1]) >= 1):
# if using occ >= 7.1, use HLR algorithm
import Drawing
snip = Drawing.projectToSVG(e,drawing_plane_normal)
if snip:
try:
a = "A " + snip.split("path d=\"")[1].split("\"")[0].split("A")[1]
except:
pass
else:
edata += a
done = True
if not done:
if len(e.Vertexes) == 1 and iscircle: #complete curve
svg = getCircle(e)
return svg
elif len(e.Vertexes) == 1 and isellipse:
#svg = getEllipse(e)
#return svg
endpoints = (getProj(c.value((c.LastParameter-\
c.FirstParameter)/2.0), plane), \
getProj(vs[-1].Point, plane))
else:
endpoints = (getProj(vs[-1].Point), plane)
# arc
if iscircle:
rx = ry = c.Radius
rot = 0
else: #ellipse
rx = c.MajorRadius
ry = c.MinorRadius
rot = math.degrees(c.AngleXU * (c.Axis * \
FreeCAD.Vector(0,0,1)))
if rot > 90:
rot -=180
if rot < -90:
rot += 180
#be careful with the sweep flag
flag_large_arc = (((e.ParameterRange[1] - \
e.ParameterRange[0]) / math.pi) % 2) > 1
#flag_sweep = (c.Axis * drawing_plane_normal >= 0) \
# == (e.LastParameter > e.FirstParameter)
# == (e.Orientation == "Forward")
# other method: check the direction of the angle between tangents
t1 = e.tangentAt(e.FirstParameter)
t2 = e.tangentAt(e.FirstParameter + (e.LastParameter-e.FirstParameter)/10)
flag_sweep = (DraftVecUtils.angle(t1,t2,drawing_plane_normal) < 0)
for v in endpoints:
edata += 'A %s %s %s %s %s %s %s ' % \
(str(rx),str(ry),str(rot),\
str(int(flag_large_arc)),\
str(int(flag_sweep)),str(v.x),str(v.y))
else:
edata += getDiscretized(e, plane)
elif DraftGeomUtils.geomType(e) == "Line":
v = getProj(vs[-1].Point, plane)
edata += 'L '+ str(v.x) +' '+ str(v.y) + ' '
else:
bspline=e.Curve.toBSpline(e.FirstParameter,e.LastParameter)
if bspline.Degree > 3 or bspline.isRational():
try:
bspline=bspline.approximateBSpline(0.05,50, 3,'C0')
except RuntimeError:
print("Debug: unable to approximate bspline")
if bspline.Degree <= 3 and not bspline.isRational():
for bezierseg in bspline.toBezier():
if bezierseg.Degree>3: #should not happen
raise AssertionError
elif bezierseg.Degree==1:
edata +='L '
elif bezierseg.Degree==2:
edata +='Q '
elif bezierseg.Degree==3:
edata +='C '
for pole in bezierseg.getPoles()[1:]:
v = getProj(pole, plane)
edata += str(v.x) +' '+ str(v.y) + ' '
else:
print("Debug: one edge (hash ",e.hashCode(),\
") has been discretized with parameter 0.1")
for linepoint in bspline.discretize(0.1)[1:]:
v = getProj(linepoint, plane)
edata += 'L '+ str(v.x) +' '+ str(v.y) + ' '
if fill != 'none':
edata += 'Z '
if edata in pathdata:
# do not draw a path on another identical path
return ""
else:
svg += edata
pathdata.append(edata)
svg += '" '
svg += 'stroke="' + stroke + '" '
svg += 'stroke-width="' + str(linewidth) + ' px" '
svg += 'style="stroke-width:'+ str(linewidth)
svg += ';stroke-miterlimit:4'
svg += ';stroke-dasharray:' + lstyle
svg += ';fill:' + fill
try:
svg += ';fill-opacity:' + str(fill_opacity)
except NameError:
pass
svg += ';fill-rule: evenodd "'
svg += '/>\n'
return svg
def getCircle(edge):
cen = getProj(edge.Curve.Center, plane)
rad = edge.Curve.Radius
if hasattr(FreeCAD,"DraftWorkingPlane"):
drawing_plane_normal = FreeCAD.DraftWorkingPlane.axis
else:
drawing_plane_normal = FreeCAD.Vector(0,0,1)
if plane: drawing_plane_normal = plane.axis
if round(edge.Curve.Axis.getAngle(drawing_plane_normal),2) == 0:
# perpendicular projection: circle
svg = '<circle cx="' + str(cen.x)
svg += '" cy="' + str(cen.y)
svg += '" r="' + str(rad)+'" '
else:
# any other projection: ellipse
svg = '<path d="'
svg += getDiscretized(edge, plane)
svg += '" '
svg += 'stroke="' + stroke + '" '
svg += 'stroke-width="' + str(linewidth) + ' px" '
svg += 'style="stroke-width:'+ str(linewidth)
svg += ';stroke-miterlimit:4'
svg += ';stroke-dasharray:' + lstyle
svg += ';fill:' + fill + '"'
svg += '/>\n'
return svg
def getEllipse(edge):
cen = getProj(edge.Curve.Center, plane)
mir = edge.Curve.MinorRadius
mar = edge.Curve.MajorRadius
svg = '<ellipse cx="' + str(cen.x)
svg += '" cy="' + str(cen.y)
svg += '" rx="' + str(mar)
svg += '" ry="' + str(mir)+'" '
svg += 'stroke="' + stroke + '" '
svg += 'stroke-width="' + str(linewidth) + ' px" '
svg += 'style="stroke-width:'+ str(linewidth)
svg += ';stroke-miterlimit:4'
svg += ';stroke-dasharray:' + lstyle
svg += ';fill:' + fill + '"'
svg += '/>\n'
return svg
def getArrow(arrowtype,point,arrowsize,color,linewidth,angle=0):
svg = ""
if gui:
if not obj.ViewObject:
return svg
if obj.ViewObject.ArrowType == "Circle":
svg += '<circle cx="'+str(point.x)+'" cy="'+str(point.y)
svg += '" r="'+str(arrowsize)+'" '
svg += 'fill="none" stroke="'+ color + '" '
svg += 'style="stroke-width:'+ str(linewidth) + ';stroke-miterlimit:4;stroke-dasharray:none" '
svg += 'freecad:skip="1"'
svg += '/>\n'
elif obj.ViewObject.ArrowType == "Dot":
svg += '<circle cx="'+str(point.x)+'" cy="'+str(point.y)
svg += '" r="'+str(arrowsize)+'" '
svg += 'fill="'+ color +'" stroke="none" '
svg += 'style="stroke-miterlimit:4;stroke-dasharray:none" '
svg += 'freecad:skip="1"'
svg += '/>\n'
elif obj.ViewObject.ArrowType == "Arrow":
svg += '<path transform="rotate('+str(math.degrees(angle))
svg += ','+ str(point.x) + ',' + str(point.y) + ') '
svg += 'translate(' + str(point.x) + ',' + str(point.y) + ') '
svg += 'scale('+str(arrowsize)+','+str(arrowsize)+')" freecad:skip="1" '
svg += 'fill="'+ color +'" stroke="none" '
svg += 'style="stroke-miterlimit:4;stroke-dasharray:none" '
svg += 'd="M 0 0 L 4 1 L 4 -1 Z"/>\n'
elif obj.ViewObject.ArrowType == "Tick":
svg += '<path transform="rotate('+str(math.degrees(angle))
svg += ','+ str(point.x) + ',' + str(point.y) + ') '
svg += 'translate(' + str(point.x) + ',' + str(point.y) + ') '
svg += 'scale('+str(arrowsize)+','+str(arrowsize)+')" freecad:skip="1" '
svg += 'fill="'+ color +'" stroke="none" '
svg += 'style="stroke-miterlimit:4;stroke-dasharray:none" '
svg += 'd="M -1 -2 L 0 2 L 1 2 L 0 -2 Z"/>\n'
elif obj.ViewObject.ArrowType == "Tick-2":
svg += '<line transform="rotate('+str(math.degrees(angle)+45)
svg += ','+ str(point.x) + ',' + str(point.y) + ') '
svg += 'translate(' + str(point.x) + ',' + str(point.y) + ') '
svg += '" freecad:skip="1" '
svg += 'fill="none" stroke="'+ color +'" '
svg += 'style="stroke-dasharray:none;stroke-linecap:square;'
svg += 'stroke-width:'+ str(linewidth) +'" '
svg += 'x1="-'+ str(arrowsize*2) +'" y1="0" '
svg += 'x2="' + str(arrowsize*2) +'" y2="0" />\n'
else:
print("getSVG: arrow type not implemented")
return svg
def getOvershoot(point,shootsize,color,linewidth,angle=0):
svg = '<line transform="rotate('+str(math.degrees(angle))
svg += ','+ str(point.x) + ',' + str(point.y) + ') '
svg += 'translate(' + str(point.x) + ',' + str(point.y) + ') '
svg += '" freecad:skip="1" '
svg += 'fill="none" stroke="'+ color +'" '
svg += 'style="stroke-dasharray:none;stroke-linecap:square;'
svg += 'stroke-width:'+ str(linewidth) +'" '
svg += 'x1="0" y1="0" '
svg += 'x2="'+ str(shootsize*-1) +'" y2="0" />\n'
return svg
def getText(color,fontsize,fontname,angle,base,text,linespacing=0.5,align="center",flip=True):
if isinstance(angle,FreeCAD.Rotation):
if not plane:
angle = angle.Angle
else:
if plane.axis.getAngle(angle.Axis) < 0.001:
angle = angle.Angle
elif abs(plane.axis.getAngle(angle.Axis)-math.pi) < 0.001:
return "" # text is perpendicular to view, so it shouldn't appear
else:
angle = 0 #TODO maybe there is something better to do here?
if not isinstance(text,list):
text = text.split("\n")
if align.lower() == "center":
anchor = "middle"
elif align.lower() == "left":
anchor = "start"
else:
anchor = "end"
if techdraw:
svg = ""
for i in range(len(text)):
t = text[i]
if sys.version_info.major < 3 and (not isinstance(t,unicode)):
t = t.decode("utf8")
# possible workaround if UTF8 is unsupported
# import unicodedata
# t = u"".join([c for c in unicodedata.normalize("NFKD",t) if not unicodedata.combining(c)]).encode("utf8")
svg += '<text fill="' + color +'" font-size="' + str(fontsize) + '" '
svg += 'style="text-anchor:'+anchor+';text-align:'+align.lower()+';'
svg += 'font-family:'+ fontname +'" '
svg += 'transform="rotate('+str(math.degrees(angle))
svg += ','+ str(base.x) + ',' + str(base.y-linespacing*i) + ') '
svg += 'translate(' + str(base.x) + ',' + str(base.y-linespacing*i) + ') '
svg += 'scale(1,-1)" '
#svg += '" freecad:skip="1"'
svg += '>\n' + t + '</text>\n'
else:
svg = '<text fill="'
svg += color +'" font-size="'
svg += str(fontsize) + '" '
svg += 'style="text-anchor:'+anchor+';text-align:'+align.lower()+';'
svg += 'font-family:'+ fontname +'" '
svg += 'transform="rotate('+str(math.degrees(angle))
svg += ','+ str(base.x) + ',' + str(base.y) + ') '
if flip:
svg += 'translate(' + str(base.x) + ',' + str(base.y) + ')'
else:
svg += 'translate(' + str(base.x) + ',' + str(-base.y) + ')'
#svg += 'scale('+str(tmod/2000)+',-'+str(tmod/2000)+') '
if flip:
svg += ' scale(1,-1) '
else:
svg += ' scale(1,1) '
svg += '" freecad:skip="1"'
svg += '>\n'
if len(text) == 1:
try:
svg += text[0]
except:
svg += text[0].decode("utf8")
else:
for i in range(len(text)):
if i == 0:
svg += '<tspan>'
else:
svg += '<tspan x="0" dy="'+str(linespacing)+'">'
try:
svg += text[i]
except:
svg += text[i].decode("utf8")
svg += '</tspan>\n'
svg += '</text>\n'
return svg
if not obj:
pass
elif isinstance(obj,Part.Shape):
if "#" in fillstyle:
fill = fillstyle
elif fillstyle == "shape color":
fill = "#888888"
else:
fill = 'url(#'+fillstyle+')'
lstyle = getLineStyle(linestyle, scale)
svg += getPath(obj.Edges,pathname="")
elif getType(obj) == "Dimension":
if gui:
if not obj.ViewObject:
print ("export of dimensions to SVG is only available in GUI mode")
elif obj.ViewObject.Proxy:
if hasattr(obj.ViewObject.Proxy,"p1"):
prx = obj.ViewObject.Proxy
ts = (len(prx.string)*obj.ViewObject.FontSize.Value)/4.0
rm = ((prx.p3.sub(prx.p2)).Length/2.0)-ts
p2a = getProj(prx.p2.add(DraftVecUtils.scaleTo(prx.p3.sub(prx.p2),rm)), plane)
p2b = getProj(prx.p3.add(DraftVecUtils.scaleTo(prx.p2.sub(prx.p3),rm)), plane)
p1 = getProj(prx.p1, plane)
p2 = getProj(prx.p2, plane)
p3 = getProj(prx.p3, plane)
p4 = getProj(prx.p4, plane)
tbase = getProj(prx.tbase, plane)
r = prx.textpos.rotation.getValue().getValue()
rv = FreeCAD.Rotation(r[0],r[1],r[2],r[3]).multVec(FreeCAD.Vector(1,0,0))
angle = -DraftVecUtils.angle(getProj(rv, plane))
#angle = -DraftVecUtils.angle(p3.sub(p2))
# drawing lines
svg = '<path '
if obj.ViewObject.DisplayMode == "2D":
tangle = angle
if tangle > math.pi/2:
tangle = tangle-math.pi
#elif (tangle <= -math.pi/2) or (tangle > math.pi/2):
# tangle = tangle+math.pi
#tbase = tbase.add(DraftVecUtils.rotate(Vector(0,2/scale,0),tangle))
if rotation != 0:
#print "dim: tangle:",tangle," rot: ",rotation," text: ",prx.string
if abs(tangle+math.radians(rotation)) < 0.0001:
tangle += math.pi
tbase = tbase.add(DraftVecUtils.rotate(Vector(0,2/scale,0),tangle))
svg += 'd="M '+str(p1.x)+' '+str(p1.y)+' '
svg += 'L '+str(p2.x)+' '+str(p2.y)+' '
svg += 'L '+str(p3.x)+' '+str(p3.y)+' '
svg += 'L '+str(p4.x)+' '+str(p4.y)+'" '
else:
tangle = 0
if rotation != 0:
tangle = -math.radians(rotation)
tbase = tbase.add(Vector(0,-2.0/scale,0))
svg += 'd="M '+str(p1.x)+' '+str(p1.y)+' '
svg += 'L '+str(p2.x)+' '+str(p2.y)+' '
svg += 'L '+str(p2a.x)+' '+str(p2a.y)+' '
svg += 'M '+str(p2b.x)+' '+str(p2b.y)+' '
svg += 'L '+str(p3.x)+' '+str(p3.y)+' '
svg += 'L '+str(p4.x)+' '+str(p4.y)+'" '
svg += 'fill="none" stroke="'
svg += stroke + '" '
svg += 'stroke-width="' + str(linewidth) + ' px" '
svg += 'style="stroke-width:'+ str(linewidth)
svg += ';stroke-miterlimit:4;stroke-dasharray:none" '
svg += 'freecad:basepoint1="'+str(p1.x)+' '+str(p1.y)+'" '
svg += 'freecad:basepoint2="'+str(p4.x)+' '+str(p4.y)+'" '
svg += 'freecad:dimpoint="'+str(p2.x)+' '+str(p2.y)+'"'
svg += '/>\n'
# drawing dimension and extension lines overshoots
if hasattr(obj.ViewObject,"DimOvershoot") and obj.ViewObject.DimOvershoot.Value:
shootsize = obj.ViewObject.DimOvershoot.Value/pointratio
svg += getOvershoot(p2,shootsize,stroke,linewidth,angle)
svg += getOvershoot(p3,shootsize,stroke,linewidth,angle+math.pi)
if hasattr(obj.ViewObject,"ExtOvershoot") and obj.ViewObject.ExtOvershoot.Value:
shootsize = obj.ViewObject.ExtOvershoot.Value/pointratio
shootangle = -DraftVecUtils.angle(p1.sub(p2))
svg += getOvershoot(p2,shootsize,stroke,linewidth,shootangle)
svg += getOvershoot(p3,shootsize,stroke,linewidth,shootangle)
# drawing arrows
if hasattr(obj.ViewObject,"ArrowType"):
arrowsize = obj.ViewObject.ArrowSize.Value/pointratio
if hasattr(obj.ViewObject,"FlipArrows"):
if obj.ViewObject.FlipArrows:
angle = angle+math.pi
svg += getArrow(obj.ViewObject.ArrowType,p2,arrowsize,stroke,linewidth,angle)
svg += getArrow(obj.ViewObject.ArrowType,p3,arrowsize,stroke,linewidth,angle+math.pi)
# drawing text
svg += getText(stroke,fontsize,obj.ViewObject.FontName,tangle,tbase,prx.string)
elif getType(obj) == "AngularDimension":
if gui:
if not obj.ViewObject:
print ("export of dimensions to SVG is only available in GUI mode")
elif obj.ViewObject.Proxy:
if hasattr(obj.ViewObject.Proxy,"circle"):
prx = obj.ViewObject.Proxy
# drawing arc
fill= "none"
lstyle = getLineStyle(linestyle, scale)
if obj.ViewObject.DisplayMode == "2D":
svg += getPath([prx.circle])
else:
if hasattr(prx,"circle1"):
svg += getPath([prx.circle1])
svg += getPath([prx.circle2])
else:
svg += getPath([prx.circle])
# drawing arrows
if hasattr(obj.ViewObject,"ArrowType"):
p2 = getProj(prx.p2, plane)
p3 = getProj(prx.p3, plane)
arrowsize = obj.ViewObject.ArrowSize.Value/pointratio
arrowlength = 4*obj.ViewObject.ArrowSize.Value
u1 = getProj((prx.circle.valueAt(prx.circle.FirstParameter+arrowlength)).sub(prx.circle.valueAt(prx.circle.FirstParameter)), plane)
u2 = getProj((prx.circle.valueAt(prx.circle.LastParameter-arrowlength)).sub(prx.circle.valueAt(prx.circle.LastParameter)), plane)
angle1 = -DraftVecUtils.angle(u1)
angle2 = -DraftVecUtils.angle(u2)
if hasattr(obj.ViewObject,"FlipArrows"):
if obj.ViewObject.FlipArrows:
angle1 = angle1+math.pi
angle2 = angle2+math.pi
svg += getArrow(obj.ViewObject.ArrowType,p2,arrowsize,stroke,linewidth,angle1)
svg += getArrow(obj.ViewObject.ArrowType,p3,arrowsize,stroke,linewidth,angle2)
# drawing text
if obj.ViewObject.DisplayMode == "2D":
t = prx.circle.tangentAt(prx.circle.FirstParameter+(prx.circle.LastParameter-prx.circle.FirstParameter)/2.0)
t = getProj(t, plane)
tangle = DraftVecUtils.angle(t)
if (tangle <= -math.pi/2) or (tangle > math.pi/2):
tangle = tangle + math.pi
tbase = getProj(prx.circle.valueAt(prx.circle.FirstParameter+(prx.circle.LastParameter-prx.circle.FirstParameter)/2.0), plane)
tbase = tbase.add(DraftVecUtils.rotate(Vector(0,2.0/scale,0),tangle))
#print(tbase)
else:
tangle = 0
tbase = getProj(prx.tbase, plane)
svg += getText(stroke,fontsize,obj.ViewObject.FontName,tangle,tbase,prx.string)
elif getType(obj) == "Label":
if getattr(obj.ViewObject, "Line", True): # some Labels may have no Line property
def format_point(coords, action='L'):
return "{action}{x},{y}".format(
x=coords.x, y=coords.y, action=action
)
# Draw multisegment line
proj_points = list(map(lambda x: getProj(x, plane), obj.Points))
path_dir_list = [format_point(proj_points[0], action='M')]
path_dir_list += map(format_point, proj_points[1:])
path_dir_str = " ".join(path_dir_list)
svg_path = '<path fill="none" stroke="{stroke}" stroke-width="{linewidth}" d="{directions}"/>'.format(
stroke=stroke,
linewidth=linewidth,
directions=path_dir_str
)
svg += svg_path
# Draw arrow.
# We are different here from 3D view
# if Line is set to 'off', no arrow is drawn
if hasattr(obj.ViewObject, "ArrowType") and len(obj.Points) >= 2:
last_segment = FreeCAD.Vector(obj.Points[-1] - obj.Points[-2])
angle = -DraftVecUtils.angle(getProj(last_segment, plane)) + math.pi
svg += getArrow(
arrowtype=obj.ViewObject.ArrowType,
point=proj_points[-1],
arrowsize=obj.ViewObject.ArrowSize.Value/pointratio,
color=stroke,
linewidth=linewidth,
angle=angle
)
# print text
if gui:
if not obj.ViewObject:
print("export of texts to SVG is only available in GUI mode")
else:
fontname = obj.ViewObject.TextFont
position = getProj(obj.Placement.Base, plane)
rotation = obj.Placement.Rotation
justification = obj.ViewObject.TextAlignment
text = obj.Text
svg += getText(stroke, fontsize, fontname, rotation, position,
text, linespacing, justification)
elif getType(obj) in ["Annotation","DraftText"]:
"returns an svg representation of a document annotation"
if gui:
if not obj.ViewObject:
print ("export of texts to SVG is only available in GUI mode")
else:
n = obj.ViewObject.FontName
if getType(obj) == "Annotation":
p = getProj(obj.Position, plane)
r = obj.ViewObject.Rotation.getValueAs("rad")
t = obj.LabelText
else: # DraftText
p = getProj(obj.Placement.Base, plane)
r = obj.Placement.Rotation
t = obj.Text
j = obj.ViewObject.Justification
svg += getText(stroke,fontsize,n,r,p,t,linespacing,j)
elif getType(obj) == "Axis":
"returns the SVG representation of an Arch Axis system"
if gui:
if not obj.ViewObject:
print ("export of axes to SVG is only available in GUI mode")
else:
vobj = obj.ViewObject
lorig = getLineStyle(linestyle, scale)
fill = 'none'
rad = vobj.BubbleSize.Value/2
n = 0
for e in obj.Shape.Edges:
lstyle = lorig
svg += getPath([e])
lstyle = "none"
pos = ["Start"]
if hasattr(vobj,"BubblePosition"):
if vobj.BubblePosition == "Both":
pos = ["Start","End"]
else:
pos = [vobj.BubblePosition]
for p in pos:
if p == "Start":
p1 = e.Vertexes[0].Point
p2 = e.Vertexes[1].Point
else:
p1 = e.Vertexes[1].Point
p2 = e.Vertexes[0].Point
dv = p2.sub(p1)
dv.normalize()
center = p2.add(dv.scale(rad,rad,rad))
svg += getCircle(Part.makeCircle(rad,center))
if hasattr(vobj.Proxy,"bubbletexts"):
if len (vobj.Proxy.bubbletexts) >= n:
svg += '<text fill="' + stroke + '" '
svg += 'font-size="' + str(rad) + '" '
svg += 'style="text-anchor:middle;'
svg += 'text-align:center;'
svg += 'font-family: sans;" '
svg += 'transform="translate(' + str(center.x+rad/4.0) + ',' + str(center.y-rad/3.0) + ') '
svg += 'scale(1,-1)"> '
svg += '<tspan>' + obj.ViewObject.Proxy.bubbletexts[n].string.getValues()[0] + '</tspan>\n'
svg += '</text>\n'
n += 1
elif getType(obj) == "Pipe":
fill = stroke
lstyle = getLineStyle(linestyle, scale)
if obj.Base and obj.Diameter:
svg += getPath(obj.Base.Shape.Edges)
for f in obj.Shape.Faces:
if len(f.Edges) == 1:
if isinstance(f.Edges[0].Curve,Part.Circle):
svg += getCircle(f.Edges[0])
elif getType(obj) == "Rebar":
fill = "none"
lstyle = getLineStyle(linestyle, scale)
if obj.Proxy:
if not hasattr(obj.Proxy,"wires"):
obj.Proxy.execute(obj)
if hasattr(obj.Proxy,"wires"):
svg += getPath(wires=obj.Proxy.wires)
elif getType(obj) == "PipeConnector":
pass
elif getType(obj) == "Space":
"returns an SVG fragment for the text of a space"
if gui:
if not obj.ViewObject:
print ("export of spaces to SVG is only available in GUI mode")
else:
c = getrgb(obj.ViewObject.TextColor)
n = obj.ViewObject.FontName
a = 0
if rotation != 0:
a = math.radians(rotation)
t1 = obj.ViewObject.Proxy.text1.string.getValues()
t2 = obj.ViewObject.Proxy.text2.string.getValues()
scale = obj.ViewObject.FirstLine.Value/obj.ViewObject.FontSize.Value
f1 = fontsize*scale
p2 = FreeCAD.Vector(obj.ViewObject.Proxy.coords.translation.getValue().getValue())
lspc = FreeCAD.Vector(obj.ViewObject.Proxy.header.translation.getValue().getValue())
p1 = p2.add(lspc)
j = obj.ViewObject.TextAlign
svg += getText(c,f1,n,a,getProj(p1, plane),t1,linespacing,j,flip=True)
if t2:
ofs = FreeCAD.Vector(0,lspc.Length,0)
if a:
ofs = FreeCAD.Rotation(FreeCAD.Vector(0,0,1),-rotation).multVec(ofs)
svg += getText(c,fontsize,n,a,getProj(p1, plane).add(ofs),t2,linespacing,j,flip=True)
elif obj.isDerivedFrom('Part::Feature'):
if obj.Shape.isNull():
return ''
# setting fill
if obj.Shape.Faces:
if gui:
try:
m = obj.ViewObject.DisplayMode
except AttributeError:
m = None
if (m != "Wireframe"):
if fillstyle == "shape color":
fill = getrgb(obj.ViewObject.ShapeColor,testbw=False)
fill_opacity = 1 - (obj.ViewObject.Transparency / 100.0)
else:
fill = 'url(#'+fillstyle+')'
svg += getPattern(fillstyle)
else:
fill = "none"
else:
fill = "#888888"
else:
fill = 'none'
lstyle = getLineStyle(linestyle, scale)
if len(obj.Shape.Vertexes) > 1:
wiredEdges = []
if obj.Shape.Faces:
for i,f in enumerate(obj.Shape.Faces):
svg += getPath(wires=f.Wires,pathname='%s_f%04d' % \
(obj.Name,i))
wiredEdges.extend(f.Edges)
else:
for i,w in enumerate(obj.Shape.Wires):
svg += getPath(w.Edges,pathname='%s_w%04d' % \
(obj.Name,i))
wiredEdges.extend(w.Edges)
if len(wiredEdges) != len(obj.Shape.Edges):
for i,e in enumerate(obj.Shape.Edges):
if (DraftGeomUtils.findEdge(e,wiredEdges) == None):
svg += getPath([e],pathname='%s_nwe%04d' % \
(obj.Name,i))
else:
# closed circle or spline
if obj.Shape.Edges:
if isinstance(obj.Shape.Edges[0].Curve,Part.Circle):
svg = getCircle(obj.Shape.Edges[0])
else:
svg = getPath(obj.Shape.Edges)
if FreeCAD.GuiUp:
if hasattr(obj.ViewObject,"EndArrow") and hasattr(obj.ViewObject,"ArrowType") and (len(obj.Shape.Vertexes) > 1):
if obj.ViewObject.EndArrow:
p1 = getProj(obj.Shape.Vertexes[-2].Point, plane)
p2 = getProj(obj.Shape.Vertexes[-1].Point, plane)
angle = -DraftVecUtils.angle(p2.sub(p1))
arrowsize = obj.ViewObject.ArrowSize.Value/pointratio
svg += getArrow(obj.ViewObject.ArrowType,p2,arrowsize,stroke,linewidth,angle)
# techdraw expects bottom-to-top coordinates
if techdraw:
svg = '<g transform ="scale(1,-1)">'+svg+'</g>'
return svg