prerelease

docs/changes.md

@@ -45,31 +45,13 @@ examples/advanced/timer_callback3.py
 examples/advanced/warp6.py
 examples/pyplot/histo_1d_e.py
 examples/other/tensor_grid2.py
+examples/simulations/airplane1.py
 examples/simulations/lorenz.py
 examples/simulations/gas.py
 examples/simulations/aspring2_player.py
 ```
 
 ### Broken Examples
-```
-airplane1.py
-examples/simulations/trail.py
-particle_simulator.py
-```
-align4.py
-bgImage.py
-colormap_list.py
-mousehover3.py
-cut_with_points2.py
-interpolate_field.py
-goniometer.py
-pendulum_3d.pyq
-
-graph_lineage.py
-graph_network.py
-markpoint.py
-plot_stream.py
-
 meshio_read.py
 
 

examples/advanced/cut_with_points2.py

@@ -18,4 +18,4 @@
 
 line = Line(pts, closed=True).lw(5).c("green3")
 
-show([(mesh, line), (cmesh, line, __doc__)], N=2, axes=1)
+show([(mesh, line), (cmesh, line, __doc__)], N=2).close()

examples/advanced/interpolate_field.py

@@ -1,10 +1,5 @@
-"""Interpolate a vectorial field using:
-
-Thin Plate Spline or Radial Basis Function.
-
-Example shows how to share the same Camera
-between different Plotter windows.
-"""
+"""Interpolate a vectorial field using
+Thin Plate Spline or Radial Basis Function"""
 from scipy.interpolate import Rbf
 from vedo import Plotter, Points, Arrows, show
 import numpy as np
@@ -29,15 +24,15 @@
 
 src = Points(sources, c="r", r=12)
 trs = Points(sources + deltas, c="v", r=12)
-arr = Arrows(sources, sources + deltas)
+arr = Arrows(sources, sources + deltas).color("k8")
 
 ################################################# warp using Thin Plate Splines
 warped = apos.clone().warp(sources, sources+deltas)
 warped.alpha(0.4).color("lg").point_size(10)
-allarr = Arrows(apos.points(), warped.points())
+allarr = Arrows(apos.points(), warped.points()).color("k8")
 
 set1 = [apos, warped, src, trs, arr, __doc__]
-plt1 = show([set1, allarr], N=2, bg='bb')  # returns the Plotter class
+plt1 = show([set1, allarr], N=2, bg='bb', interactive=0)  # returns the Plotter class
 
 
 ################################################# RBF
@@ -54,16 +49,15 @@
 positions_rbf = np.vstack([positions_x, positions_y, positions_z])
 
 warped_rbf = Points(positions_rbf, r=2).alpha(0.4).color("lg").point_size(10)
-allarr_rbf = Arrows(apos.points(), warped_rbf.points())
+allarr_rbf = Arrows(apos.points(), warped_rbf.points()).color("k8")
 
-arr = Arrows(sources, sources + deltas)
+arr = Arrows(sources, sources + deltas).color("k8")
 
 plt2 = Plotter(N=2, pos=(200, 300), bg='bb')
-plt2.camera = plt1.camera  # share the same camera with previous Plotter
-
 plt2.at(0).show("Radial Basis Function", apos, warped_rbf, src, trs, arr)
 plt2.at(1).show(allarr_rbf)
+plt2.interactive()
 
-plt2.interactive().close()
+plt2.close()
 plt1.close()
 

examples/pyplot/graph_lineage.py

@@ -12,7 +12,7 @@
 
 # Vertex generation is automatic,
 #  add a child to vertex0, so that now vertex1 exists
-g.add_child(0, edge_label="Mother giving birth\nto her baby cell")
+g.add_child(0, edge_label="Mother cell")
 g.add_child(1); g.add_child(1)
 g.add_child(2); g.add_child(2); g.add_child(2)
 g.add_child(3); g.add_child(3, edge_label="daughter_38")

examples/pyplot/graph_network.py

@@ -33,11 +33,11 @@
 
 # Interpolate the node value to color the edges:
 graph.cmap('viridis', v2).add_scalarbar3d(c='k')
-graph.scalarbar.shift(.3,0,0)
+graph.scalarbar.shift(0.15,0,0).use_bounds(True)
 pts.cmap('viridis', v2)
 
 # This would colorize the edges directly with solid color based on a v3 array:
 # v3 = [sin(x) for x in range(graph.ncells)]
 # graph.cmap('jet', v3).add_scalarbar()
 
-show(pts, graph, labs1, labs2, __doc__, axes=9, mode="image").close()
+show(pts, graph, labs1, labs2, __doc__, zoom='tight').close()

examples/pyplot/plot_stream.py

@@ -1,7 +1,7 @@
 """Plot streamlines of the 2D field:
 
-u(x,y) = -1 - x\^2 + y
-v(x,y) =  1 + x  - y\^2
+u(x,y) = -1 - x:^2 + y
+v(x,y) =  1 + x  - y:^2
 """
 from vedo import Points, show
 from vedo.pyplot import streamplot

examples/simulations/airplane1.py

@@ -1,20 +1,20 @@
-"""Draw the shadow and trailing line of a flying plane. Not really
-a simulation.. just a way to illustrate how to move objects around!"""
+"""Draw the shadow and trailing line of a moving object."""
 from vedo import *
 
 world = Box(size=(30,15,8)).wireframe()
 airplane = Mesh(dataurl+"cessna.vtk").c("green")
+airplane.pos(-15, 2.0, 0.15)
+airplane.add_trail(n=100).add_shadow('z', -4)
 
-plt = Plotter(axes=1, interactive=False)
+plt = Plotter(interactive=False)
+plt.show(world, airplane, __doc__, viewup="z")
 
-for t in np.arange(0, 3.2, 0.02):
-
-    # make up some movement
-    airplane.pos(9*t-15, 2-t, sin(3-t)).rotate_x(t)
-    if t==0:
-        airplane.add_trail(n=200).add_shadow('z', -4)
-    plt.show(world, airplane, __doc__, viewup="z", resetcam=False)
-    # plt.process_events()
+for t in np.arange(0, 3.2, 0.04):
+    pos = (9*t-15, 2-t, sin(3-t))  # make up some movement
+    airplane.pos(pos).rotate_x(t)
+    airplane.update_trail()
+    airplane.update_shadows()
+    plt.render()
 
 plt.interactive().close()
 

examples/simulations/airplane2.py

@@ -5,19 +5,22 @@
 world = Box([0,0,0], 30, 16, 8).wireframe()
 
 plane1 = Mesh(dataurl+"cessna.vtk").c("green")
-plane1.pos(-15, 2, 0.14).add_trail(n=200)
+plane1.pos(-15, 2, 0.15).add_trail(n=100)
 plane1.add_shadow('z', -4).add_shadow('y', 8)
 
 plane2 = plane1.clone().c("tomato")
-plane2.pos(-15,-2,-0.21).add_trail(n=200)
+plane2.pos(-15,-2,-0.20).add_trail(n=100)
 plane2.add_shadow('z', -4).add_shadow('y', 8)
 
 # Setup the scene
-plt = Plotter(axes=1, interactive=False)
+plt = Plotter(interactive=False)
+plt.show(world, plane1, plane2, __doc__, viewup="z")
 
-for t in np.arange(0, 3.2, 0.02):
+for t in np.arange(0, 3.2, 0.04):
     plane1.pos(9*t-15, 2-t, sin(3-t)).rotate_x(0+t) # make up some movement
     plane2.pos(8*t-15, t-2, sin(t-3)).rotate_x(2-t) # for the 2 planes
-    plt.show(world, plane1, plane2, __doc__, viewup="z")
+    plane1.update_trail().update_shadows()
+    plane2.update_trail().update_shadows()
+    plt.render()
 
 plt.interactive().close()

examples/simulations/particle_simulator.py

@@ -59,8 +59,12 @@ def simulate(self):
                 a.vel += ftot / a.mass * self.dt  # update velocity and position of a
                 a.pos += a.vel * self.dt
                 a.vsphere.pos(a.pos)
-            if plt:
-                plt.show(resetcam=not i, azimuth=1)
+                a.vsphere.update_trail()
+            if plt:                
+                if i==0:
+                    plt.reset_camera()
+                plt.azimuth(1)
+                plt.render()
 
 
 class Particle:
@@ -86,7 +90,7 @@ def __init__(self, pos, charge, mass, radius, color, vel, fixed, negligible):
         self.negligible = negligible
         self.color = color
         if plt:
-            self.vsphere = Sphere(pos, r=radius, c=color).add_trail(lw=0.1, n=100, alpha=0.2)
+            self.vsphere = Sphere(pos, r=radius, c=color).add_trail(lw=1, n=75, alpha=0.5)
             plt.add(self.vsphere)  # Sphere representing the particle
 
 

examples/simulations/pendulum_3d.py

@@ -1,4 +1,4 @@
-"""Double pendulum in 3D (press ESC to quit)"""
+"""Double pendulum in 3D"""
 # Original idea and solution using sympy from:
 # https://www.youtube.com/watch?v=MtG9cueB548
 from vedo import *
@@ -13,8 +13,8 @@
 ball1.add_shadow('z', -3)
 ball2.add_shadow('z', -3)
 
-ball1.add_trail(n=20)
-ball2.add_trail(n=20)
+ball1.add_trail(n=10)
+ball2.add_trail(n=10)
 ball1.trail.add_shadow('z', -3) # make trails project a shadow too
 ball2.trail.add_shadow('z', -3)
 
@@ -25,18 +25,21 @@
 
 # show the solution
 plt = Plotter(interactive=False)
-plt.show(axes, __doc__, viewup='z')
+plt.show(ball1, ball2, rod1, rod2, axes, __doc__, viewup='z')
 
 i = 0
 for b1, b2 in zip(p1,p2):
     ball1.pos(b1)
     ball2.pos(b2)
     rod1.stretch([0,0,0], b1)
     rod2.stretch(b1, b2)
-    # show at max frame rate of 15 Hz
-    plt.show(ball1, ball2, rod1, rod2, resetcam=False, rate=15)
+    ball1.update_shadows().update_trail()
+    ball2.update_shadows().update_trail()
+    ball1.trail.update_shadows()
+    ball2.trail.update_shadows()
+    plt.render()
     i+=1
-    if i > 50:
+    if i > 150:
         break
 
 plt.interactive().close()

examples/simulations/trail.py

@@ -16,7 +16,7 @@
 plt += [s, p, __doc__]
 
 for i in range(150):
-    p.pos(-2+i/100.0, sin(i/5.0)/15, 0)
+    p.pos(-2+i/100.0, sin(i/5.0)/15, 0).update_trail()
     plt.show(azimuth=-0.2)
 
 # stay interactive and after pressing q close

vedo/addons.py

@@ -3926,7 +3926,7 @@ def Axes(
     return asse
 
 
-def add_global_axes(axtype=None, c=None):
+def add_global_axes(axtype=None, c=None, bounds=()):
     """
     Draw axes on scene. Available axes types are
 
@@ -3993,15 +3993,31 @@ def add_global_axes(axtype=None, c=None):
     # custom grid walls
     if plt.axes == 1 or plt.axes is True or isinstance(plt.axes, dict):
 
+        if len(bounds) == 6:
+            bnds = bounds
+            xrange = (bnds[0], bnds[1])
+            yrange = (bnds[2], bnds[3])
+            zrange = (bnds[4], bnds[5])
+        else:
+            xrange=None
+            yrange=None
+            zrange=None
+
         if isinstance(plt.axes, dict):
             plt.axes.update({"use_global": True})
             # protect from invalid camelCase options from vedo<=2.3
             for k in plt.axes:
                 if k.lower() != k:
                     return
-            asse = Axes(None, **plt.axes)
+            if "xrange" in plt.axes:
+                xrange = plt.axes.pop("xrange")
+            if "yrange" in plt.axes:
+                yrange = plt.axes.pop("yrange")
+            if "zrange" in plt.axes:
+                zrange = plt.axes.pop("zrange")
+            asse = Axes(**plt.axes, xrange=xrange, yrange=yrange, zrange=zrange)
         else:
-            asse = Axes(None, use_global=True)
+            asse = Axes(xrange=xrange, yrange=yrange, zrange=zrange)
 
         plt.renderer.AddActor(asse)
         plt.axes_instances[r] = asse