why not

base_settings.json

@@ -0,0 +1,25 @@
+{
+
+    //---------------------------------------------------------------------------
+    //  Threading / Parallelism (needs restart)
+    //---------------------------------------------------------------------------
+    "nThreadRenderThreadPool" : -1,
+
+    //---------------------------------------------------------------------------
+    //  Pyqtgraph settings (needs restart)
+    //---------------------------------------------------------------------------
+    "useOpenGl" : true,
+    "antiAliasing" : false,
+
+    //---------------------------------------------------------------------------
+    // tiling (needs restart)
+    //---------------------------------------------------------------------------
+    "useDynamicTiling" : true,
+    "tileSize"  : 256,
+    "tileShape" :[10, 10]
+
+
+    //---------------------------------------------------------------------------
+    // 
+    //---------------------------------------------------------------------------
+}

layer_stress_3d.py

@@ -34,7 +34,7 @@
 mw.setCentralWidget(viewerWidget)
 
 
-for x in range(20):
+for x in range(5):
     with vigra.Timer("create raw layer"):
         f = "/home/tbeier/Desktop/input/raw.h5"
         #f = "/media/tbeier/data/datasets/hhess/2x2x2nm_chunked/data.h5"

new_start.py

@@ -0,0 +1,34 @@
+import numpy
+import orthos
+
+
+"here where try a 4d"
+shape = (150,)*4
+
+class Axis(object):
+    def __init__(self, name, shortName, shape, color=None, isChannelAxis=False, channelNames=None):
+        pass
+
+class DataSourceAxis(object):
+    def __init__(self, dataAxis):
+        self.dataAxis  = 
+
+
+xAxis = Axis(name='X0-Axis',shortName='x0', shape=shape[0], color=orthos.colors.defaultAxisColor(0))
+yAxis = Axis(name='X1-Axis',shortName='x1', shape=shape[1], color=orthos.colors.defaultAxisColor(1))
+zAxis = Axis(name='X2-Axis',shortName='x2', shape=shape[2], color=orthos.colors.defaultAxisColor(2))
+tAxis = Axis(name='X3-Axis',shortName='x3', shape=shape[3], color=orthos.colors.defaultAxisColor(3))
+
+# channel axis do not need a color
+rgbAxis = Axis(name='RGB',shortName='RGB',shape=shape[3])
+
+globalAxis = [xAxis, yAxis, zAxis, tAxis]
+
+
+# negative number indicate channel axis
+rawSource = DataSourceAxis(dataAxis=[0,1,2,3,4])
+rgbSource = DataSourceAxis(dataAxis=dataAxis, axisOrdering=[0,1,2,3,4],channels=None)
+
+# negative number indicate channel axis
+rgbChannel = Channel(name='RGB',channelNames=['r','g','b'], shape=3)
+rgbSource = DataSourceAxis(dataAxis=dataAxis, axisOrdering=[0,1,2,3,4,-1],channels=[rgbChannel])

orthos/__init__.py

@@ -1,5 +1,6 @@
 import orthos_cpp
 import colors
+import widgets
 from orthos_cpp import *
 
 from icons_rc import *

orthos/colors.py

@@ -0,0 +1,26 @@
+
+#http://stackoverflow.com/questions/309149/generate-distinctly-different-rgb-colors-in-graphs
+# http://phrogz.net/css/distinct-colors.html
+
+import numpy
+
+distinctiveColors13 = numpy.array([
+    (255,0,0),
+    (0,255,0),
+    (0,0,255),
+    (242,79,19),
+    (255,174,13),
+    (140,255,8),
+    (9,64,24),
+    (160,242,193),
+    (17,197,242),
+    (24,24,242),
+    (63,8,77),
+    (242,155,213)
+], dtype='uint8')
+
+
+
+def defaultAxisColor(i):
+    global distinctiveColors13
+    return distinctiveColors13[i]