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| Original file line number | Diff line number | Diff line change |
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| from vtkplotter import donutPlot | ||
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| title = "A donut plot" | ||
| fractions = [0.1, 0.2, 0.3, 0.1, 0.3] | ||
| colors = [ 1, 2, 3, 4, 'white'] | ||
| labels = ["stuff1", "stuff2", "compA", "compB", ""] | ||
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| dn = donutPlot(fractions, c=colors, labels=labels, title=title) | ||
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| dn.show(axes=None, bg='w') |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,26 +1,22 @@ | ||
| """ | ||
| Example for function() method. | ||
| Draw a surface representing the 3D function specified as a string | ||
| or as a reference to an external already existing function. | ||
| Draw a surface representing a 2-var function specified | ||
| as a string or as a reference to an external existing function. | ||
| Red points indicate where the function does not exist. | ||
| """ | ||
| print(__doc__) | ||
| from vtkplotter import Plotter, fxy, sin, cos, show | ||
| from vtkplotter import fxy, sin, cos, show | ||
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| def my_z(x, y): | ||
| return sin(2 * x * y) * cos(3 * y) / 2 | ||
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| # draw at renderer nr.0 the first actor, show it with a texture | ||
| # an existing function z(x,y) can be passed: | ||
| f1 = fxy(my_z) | ||
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| # red dots are shown where the function does not exist (y>x): | ||
| # if vp is set to verbose, sympy calculates derivatives and prints them: | ||
| f2 = fxy("sin(3*x)*log(x-y)/3") | ||
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| # specify x and y ranges and z vertical limits: | ||
| f3 = fxy("log(x**2+y**2 - 1)", x=[-2, 2], y=[-2, 2], zlimits=[-1, 1.5]) | ||
| f3 = fxy("log(x**2+y**2-1)", x=[-2,2], y=[-1,8], zlimits=[-1,None]) | ||
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| show(f1, f2, f3, N=3, axes=1, sharecam=False, bg="w") |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,25 @@ | ||
| """2D histogram with hexagonal binning.""" | ||
| from vtkplotter import * | ||
| import numpy as np | ||
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| N = 2000 | ||
| x = np.random.randn(N) * 1.0 | ||
| y = np.random.randn(N) * 1.5 | ||
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| # hexagonal histogram | ||
| histo = hexHistogram(x, y, bins=10, fill=True, cmap='terrain') | ||
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| # scatter plot: | ||
| pts = Points([x, y, np.zeros(N)+6], c="black", alpha=0.05) | ||
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| f = r'f(x, y)=A \exp \left(-\left(\frac{\left(x-x_{o}\right)^{2}}' | ||
| f+= r'{2 \sigma_{x}^{2}}+\frac{\left(y-y_{o}\right)^{2}}' | ||
| f+= r'{2 \sigma_{y}^{2}}\right)\right)' | ||
| formula = Latex(f, c='k', s=1.5).rotateZ(90).rotateX(90).pos(1,-1,1) | ||
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| #settings.useParallelProjection = True | ||
| settings.xtitle = "x gaussian, s=1.0" | ||
| settings.ytitle = "y gaussian, s=1.5" | ||
| settings.ztitle = "dN/dx/dy" | ||
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| show(histo, pts, formula, Text(__doc__), axes=1, verbose=0, bg="white") |
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| from vtkplotter import polarHistogram, Hyperboloid, show | ||
| import numpy as np | ||
| np.random.seed(3) | ||
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| ################################################################## | ||
| radhisto = polarHistogram(np.random.rand(200)*6.28, | ||
| title="random orientations", | ||
| bins=10, | ||
| #c='orange', #uniform color | ||
| labels=["label"+str(i) for i in range(10)], | ||
| ) | ||
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| show(radhisto, at=0, N=2, axes=0, sharecam=False, bg="white") | ||
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| ################################################################## | ||
| hyp = Hyperboloid(res=20).cutWithPlane().rotateY(-90) | ||
| hyp.color('grey').alpha(0.3) | ||
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| # select 10 random indeces of points on the surface | ||
| idx = np.random.randint(0, hyp.NPoints(), size=10) | ||
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| radhistos = [] | ||
| for i in idx: | ||
| #generate a random histogram | ||
| rh = polarHistogram(np.random.randn(100), | ||
| bins=12, | ||
| r1=0.2, # inner radius | ||
| phigap=1.0, # leave a space btw phi bars | ||
| cmap='viridis_r', | ||
| showDisc=False, | ||
| showAngles=False, | ||
| showErrors=False, | ||
| ) | ||
| rh.scale(0.15) # scale histogram to make it small | ||
| rh.pos(hyp.getPoint(i)) # set its position on the surface | ||
| rh.orientation(hyp.normalAt(i)) # orient it along normal | ||
| radhistos.append(rh) | ||
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| show(hyp, radhistos, at=1, interactive=True) |
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| from vtkplotter import * | ||
| import numpy as np | ||
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| data1 = np.random.randn(500)*3+10 | ||
| data2 = np.random.randn(500)*2+ 7 | ||
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| h1 = histogram(data1, fill=True, outline=False, errors=True) | ||
| h2 = histogram(data2, fill=False, lc='firebrick', lw=4) | ||
| h2.z(0.1) # put h2 in front of h1 | ||
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| h1.scale([1, 0.2, 1]) # set a common y-scaling factor | ||
| h2.scale([1, 0.2, 1]) | ||
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| show(h1, h2, bg='white', axes=1) |
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,41 +1,50 @@ | ||
| """ | ||
| Example of drawing objects on different windows | ||
| and/or subwindows within the same window. | ||
| We split the main window in a 25 subwindows and draw something | ||
| in specific windows numbers. | ||
| We split the main window in many subwindows and draw | ||
| somethingon specific windows numbers. | ||
| Then open an independent window and draw a shape on it. | ||
| """ | ||
| print(__doc__) | ||
| from vtkplotter import * | ||
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| from vtkplotter import Plotter, Text, datadir | ||
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| ########################################################################## | ||
| # this is one instance of the class Plotter with 5 raws and 5 columns | ||
| vp1 = Plotter(shape=(5, 5), axes=0, bg="white") | ||
| # having set shape=(n,m), script execution after the show() is not held | ||
| vp1 = Plotter(shape=(5,5), axes=0, bg="white") | ||
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| # set a different background color for a specific subwindow (the last one) | ||
| vp1.renderers[24].SetBackground(0.8, 0.9, 0.9) # use vtk method SetBackground() | ||
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| # load the actors and give them a name | ||
| a = vp1.load(datadir+"airboat.vtk").legend("some legend") | ||
| a = vp1.load(datadir+"airboat.vtk") | ||
| b = vp1.load(datadir+"cessna.vtk", c="red") | ||
| c = vp1.load(datadir+"atc.ply") | ||
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| # show a text in each renderer | ||
| for i in range(25): | ||
| txt = Text("renderer\nnr."+str(i), c='k', s=0.5, font='arial') | ||
| vp1.show(txt, at=i, interactive=0) | ||
| txt = Text("renderer\nnr."+str(i), c='k', font='arial', s=1) | ||
| vp1.show(txt, at=i) | ||
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| vp1.show(a, at=22) | ||
| vp1.show(a, at= 6) | ||
| vp1.show(b, at=23) | ||
| vp1.show(c, at=24, interactive=0) | ||
| vp1.show(c, at=24) | ||
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| ############################################################ | ||
| ########################################################################## | ||
| # declare a second independent instance of the class Plotter | ||
| vp2 = Plotter(pos=(500, 250), bg=(0.9, 0.9, 1)) # blue-ish background | ||
| # shape can also be given as a string, e.g.: | ||
| # shape="2/6" means 2 renderers above and 6 below | ||
| # shape="3|1" means 3 renderers on the left and one on the right | ||
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| s = load(datadir+'pumpkin.vtk') | ||
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| #settings.multiRenderingSplittingPosition = 0.5 | ||
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| vp2 = Plotter(pos=(500, 250), shape='2/6') | ||
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| vp2.load(datadir+"porsche.ply").legend("an other window") | ||
| for i in range(len(vp2.renderers)): | ||
| s2 = s.clone().color(i) | ||
| txt = Text('renderer #'+str(i)) | ||
| vp2.show(s2, txt, at=i) | ||
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| vp2.show() # show and interact with mouse and keyboard | ||
| interactive() |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,15 @@ | ||
| from vtkplotter import polarPlot, show | ||
| import numpy as np | ||
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| title = "A (splined) polar plot" | ||
| angles = [ 0, 20, 60, 160, 200, 250, 300, 340] | ||
| distances = [0.1, 0.2, 0.3, 0.5, 0.6, 0.4, 0.2, 0.1] | ||
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| dn1 = polarPlot([angles, distances], deg=True, spline=False, | ||
| c='green', alpha=0.5, title=title, vmax=0.6) | ||
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| dn2 = polarPlot([angles, np.array(distances)/2], deg=True, | ||
| c='tomato', alpha=1, showDisc=False, vmax=0.6) | ||
| dn2.z(0.01) # set z above 0, so that plot is visible | ||
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| show(dn1, dn2, axes=None, bg='white') |
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