def text_dimensions(text, text_prop, dpi, at_angle=0):
ren = vtkTextRenderer()
bounds = [0, 0, 0, 0]
p = vtkTextProperty()
p.ShallowCopy(text_prop)
p.SetOrientation(at_angle)
ren.GetBoundingBox(p, text, bounds, dpi)
return bounds[1] - bounds[0] + 1, bounds[3] - bounds[2] + 1
def text_dimensions(text, text_prop, dpi, at_angle=0):
ren = vtkTextRenderer()
bounds = [0, 0, 0, 0]
p = vtkTextProperty()
p.ShallowCopy(text_prop)
p.SetOrientation(at_angle)
ren.GetBoundingBox(p, text, bounds, dpi)
return bounds[1] - bounds[0] + 1, bounds[3] - bounds[2] + 1
def text_box(text, text_prop, dpi, at_angle):
ren = vtkTextRenderer()
bounds = [0, 0, 0, 0]
p = vtkTextProperty()
p.ShallowCopy(text_prop)
p.SetOrientation(at_angle)
ren.GetBoundingBox(p, text, bounds, dpi)
return bounds
def baseline_offsets(origin, new_string, text_prop):
ren = vtkTextRenderer()
bounds_origin = [0,0,0,0]
ren.GetBoundingBox(text_prop, origin, bounds_origin)
bounds_new = [0,0,0,0]
ren.GetBoundingBox(text_prop, new_string, bounds_new)
below_offset = bounds_origin[2] - bounds_new[2]
above_offset = bounds_origin[3] - bounds_new[3]
return below_offset, above_offset
def baseline_offsets(origin, new_string, text_prop):
ren = vtkTextRenderer()
bounds_origin = [0, 0, 0, 0]
ren.GetBoundingBox(text_prop, origin, bounds_origin)
bounds_new = [0, 0, 0, 0]
ren.GetBoundingBox(text_prop, new_string, bounds_new)
below_offset = bounds_origin[2] - bounds_new[2]
above_offset = bounds_origin[3] - bounds_new[3]
return below_offset, above_offset
def text(
self,
txt,
pos=(0, 0, 0),
s=1,
c=None,
alpha=1,
bg=None,
font="Theemim",
dpi=500,
justify="bottom-left",
):
"""Build an image from a string."""
if c is None: # automatic black or white
if settings.plotter_instance and settings.plotter_instance.renderer:
c = (0.9, 0.9, 0.9)
if np.sum(settings.plotter_instance.renderer.GetBackground()
) > 1.5:
c = (0.1, 0.1, 0.1)
else:
c = (0.3, 0.3, 0.3)
r = vtk.vtkTextRenderer()
img = vtk.vtkImageData()
tp = vtk.vtkTextProperty()
tp.BoldOff()
tp.SetColor(colors.getColor(c))
tp.SetJustificationToLeft()
if "top" in justify:
tp.SetVerticalJustificationToTop()
if "bottom" in justify:
tp.SetVerticalJustificationToBottom()
if "cent" in justify:
tp.SetVerticalJustificationToCentered()
tp.SetJustificationToCentered()
if "left" in justify:
tp.SetJustificationToLeft()
if "right" in justify:
tp.SetJustificationToRight()
if font.lower() == "courier": tp.SetFontFamilyToCourier()
elif font.lower() == "times": tp.SetFontFamilyToTimes()
elif font.lower() == "arial": tp.SetFontFamilyToArial()
else:
tp.SetFontFamily(vtk.VTK_FONT_FILE)
if font in settings.fonts:
tp.SetFontFile(settings.fonts_path + font + '.ttf')
elif os.path.exists(font):
tp.SetFontFile(font)
else:
colors.printc("\sad Font",
font,
"not found in",
settings.fonts_path,
c="r")
colors.printc("\pin Available fonts are:",
settings.fonts,
c="m")
return None
if bg:
bgcol = colors.getColor(bg)
tp.SetBackgroundColor(bgcol)
tp.SetBackgroundOpacity(alpha * 0.5)
tp.SetFrameColor(bgcol)
tp.FrameOn()
#GetConstrainedFontSize (const vtkUnicodeString &str,
# vtkTextProperty *tprop, int targetWidth, int targetHeight, int dpi)
fs = r.GetConstrainedFontSize(txt, tp, 900, 1000, dpi)
tp.SetFontSize(fs)
r.RenderString(tp, txt, img, [1, 1], dpi)
# RenderString (vtkTextProperty *tprop, const vtkStdString &str,
# vtkImageData *data, int textDims[2], int dpi, int backend=Default)
self.SetInputData(img)
self.GetMapper().Modified()
self.SetPosition(pos)
x0, x1 = self.xbounds()
if x1 != x0:
sc = s / (x1 - x0)
self.SetScale(sc, sc, sc)
return self
def text_dimensions(text, text_prop):
ren = vtkTextRenderer()
bounds = [0,0,0,0]
ren.GetBoundingBox(text_prop, text, bounds)
return bounds[1] - bounds[0], bounds[3] - bounds[2]
def text_dimensions(text, text_prop):
ren = vtkTextRenderer()
bounds = [0, 0, 0, 0]
ren.GetBoundingBox(text_prop, text, bounds)
return bounds[1] - bounds[0], bounds[3] - bounds[2]