diff --git a/docs/sg_execution_times.rst b/docs/sg_execution_times.rst
deleted file mode 100644
index e5a6153..0000000
--- a/docs/sg_execution_times.rst
+++ /dev/null
@@ -1,166 +0,0 @@
-
-:orphan:
-
-.. _sphx_glr_sg_execution_times:
-
-
-Computation times
-=================
-**00:00.000** total execution time for 44 files **from all galleries**:
-
-.. container::
-
-  .. raw:: html
-
-    <style scoped>
-    <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.3.0/css/bootstrap.min.css" rel="stylesheet" />
-    <link href="https://cdn.datatables.net/1.13.6/css/dataTables.bootstrap5.min.css" rel="stylesheet" />
-    </style>
-    <script src="https://code.jquery.com/jquery-3.7.0.js"></script>
-    <script src="https://cdn.datatables.net/1.13.6/js/jquery.dataTables.min.js"></script>
-    <script src="https://cdn.datatables.net/1.13.6/js/dataTables.bootstrap5.min.js"></script>
-    <script type="text/javascript" class="init">
-    $(document).ready( function () {
-        $('table.sg-datatable').DataTable({order: [[1, 'desc']]});
-    } );
-    </script>
-
-  .. list-table::
-   :header-rows: 1
-   :class: table table-striped sg-datatable
-
-   * - Example
-     - Time
-     - Mem (MB)
-   * - :ref:`sphx_glr_gallery_1D_0-plot_trace.py` (``../examples/1D/0-plot_trace.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_1D_1-plot_trace.py` (``../examples/1D/1-plot_trace.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_1D_2-plot_multi_traces.py` (``../examples/1D/2-plot_multi_traces.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_1D_3-plot_station.py` (``../examples/1D/3-plot_station.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_01-plot2d.py` (``../examples/2D/01-plot2d.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_02-plot2d_rgt_fx.py` (``../examples/2D/02-plot2d_rgt_fx.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_03-plot2d_well_logs.py` (``../examples/2D/03-plot2d_well_logs.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_04-plot2d_well_pos.py` (``../examples/2D/04-plot2d_well_pos.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_05-plot2d_subplots.py` (``../examples/2D/05-plot2d_subplots.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_06-plot2d_rgt.py` (``../examples/2D/06-plot2d_rgt.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_07-plot2d_rgt_isoline.py` (``../examples/2D/07-plot2d_rgt_isoline.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_08-plot2d_disc.py` (``../examples/2D/08-plot2d_disc.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_09-plot2d_disc_cbar.py` (``../examples/2D/09-plot2d_disc_cbar.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_10-plot2d_ticks.py` (``../examples/2D/10-plot2d_ticks.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_11-plot2d_fonts.py` (``../examples/2D/11-plot2d_fonts.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_12-plot2d_aspect.py` (``../examples/2D/12-plot2d_aspect.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_2D_13-plot2d_f3.py` (``../examples/2D/13-plot2d_f3.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_01-slice.py` (``../examples/3Dvispy/01-slice.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_02-overlay_fault.py` (``../examples/3Dvispy/02-overlay_fault.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_03-overlay_rgt.py` (``../examples/3Dvispy/03-overlay_rgt.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_04-overlay_rgt_fault.py` (``../examples/3Dvispy/04-overlay_rgt_fault.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_05-surfaces.py` (``../examples/3Dvispy/05-surfaces.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_06-bodys.py` (``../examples/3Dvispy/06-bodys.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_07-well_logs_tube.py` (``../examples/3Dvispy/07-well_logs_tube.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_08-well_log_multi_traces.py` (``../examples/3Dvispy/08-well_log_multi_traces.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_09-slice_surf_body_logs.py` (``../examples/3Dvispy/09-slice_surf_body_logs.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_10-multi_canvas.py` (``../examples/3Dvispy/10-multi_canvas.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_11-share_cameras.py` (``../examples/3Dvispy/11-share_cameras.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_3Dvispy_12-surf-overlay.py` (``../examples/3Dvispy/12-surf-overlay.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_colormap_01-plot_cmap.py` (``../examples/colormap/01-plot_cmap.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_colormap_02-plot_all_custom_cmap.py` (``../examples/colormap/02-plot_all_custom_cmap.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_colormap_03-plot_stratum_cmap.py` (``../examples/colormap/03-plot_stratum_cmap.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_010-slices.py` (``../examples/more_demos/010-slices.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_011-disc_cbar.py` (``../examples/more_demos/011-disc_cbar.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_020-overlay.py` (``../examples/more_demos/020-overlay.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_030-overlay2.py` (``../examples/more_demos/030-overlay2.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_040-surface1.py` (``../examples/more_demos/040-surface1.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_041-surface1.py` (``../examples/more_demos/041-surface1.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_050-bodys1.py` (``../examples/more_demos/050-bodys1.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_060-well_logs.py` (``../examples/more_demos/060-well_logs.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_061-well_logs.py` (``../examples/more_demos/061-well_logs.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_070-f3.py` (``../examples/more_demos/070-f3.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_071-f3.py` (``../examples/more_demos/071-f3.py``)
-     - 00:00.000
-     - 0.0
-   * - :ref:`sphx_glr_gallery_more_demos_080-channels.py` (``../examples/more_demos/080-channels.py``)
-     - 00:00.000
-     - 0.0
diff --git a/examples/1D/0-plot_trace.py b/examples/1D/0-plot_trace.py
index b2a121c..23c7be1 100644
--- a/examples/1D/0-plot_trace.py
+++ b/examples/1D/0-plot_trace.py
@@ -19,7 +19,7 @@
 import numpy as np
 import cigvis
 
-root = '/Users/lijintao/work/mygit/pyseisview/data/'
+root = '../../data/'
 sxp = root + 'seis_h360x600x400.dat'
 ni, nx, nt = 400, 600, 360
 
diff --git a/examples/1D/1-plot_trace.py b/examples/1D/1-plot_trace.py
index 70776eb..52a0b26 100644
--- a/examples/1D/1-plot_trace.py
+++ b/examples/1D/1-plot_trace.py
@@ -20,7 +20,7 @@
 import cigvis
 import matplotlib.pyplot as plt
 
-root = '/Users/lijintao/work/mygit/pyseisview/data/'
+root = '../../data/'
 sxp = root + 'seis_h360x600x400.dat'
 ni, nx, nt = 400, 600, 360
 
diff --git a/examples/1D/2-plot_multi_traces.py b/examples/1D/2-plot_multi_traces.py
index 3010561..5f8b66f 100644
--- a/examples/1D/2-plot_multi_traces.py
+++ b/examples/1D/2-plot_multi_traces.py
@@ -18,7 +18,7 @@
 import cigvis
 import matplotlib.pyplot as plt
 
-root = '/Users/lijintao/work/mygit/pyseisview/data/'
+root = '../../data/'
 sxp = root + 'seis_h360x600x400.dat'
 ni, nx, nt = 400, 600, 360
 
diff --git a/examples/2D/08-plot2d_disc.py b/examples/2D/08-plot2d_disc.py
index 1ad810e..1453206 100644
--- a/examples/2D/08-plot2d_disc.py
+++ b/examples/2D/08-plot2d_disc.py
@@ -17,7 +17,7 @@
 import numpy as np
 import cigvis
 
-root = '/Users/lijintao/work/mygit/pyseisview/data/'
+root = '../../data/'
 sxp = root + 'seis_h360x600x400.dat'
 lxp = root + 'label_h360x600x400.dat'
 ni, nx, nt = 400, 600, 360
diff --git a/examples/2D/09-plot2d_disc_cbar.py b/examples/2D/09-plot2d_disc_cbar.py
index f0e5f74..55a864f 100644
--- a/examples/2D/09-plot2d_disc_cbar.py
+++ b/examples/2D/09-plot2d_disc_cbar.py
@@ -19,7 +19,7 @@
 from cigvis import colormap
 import matplotlib.pyplot as plt
 
-root = '/Users/lijintao/work/mygit/pyseisview/data/'
+root = '../../data/'
 sxp = root + 'seis_h360x600x400.dat'
 lxp = root + 'label_h360x600x400.dat'
 ni, nx, nt = 400, 600, 360
diff --git a/examples/more_demos/011-disc_cbar.py b/examples/more_demos/011-disc_cbar.py
index 0e6227a..1b56e12 100644
--- a/examples/more_demos/011-disc_cbar.py
+++ b/examples/more_demos/011-disc_cbar.py
@@ -82,7 +82,7 @@ def show_discrete_cbar(d):
 
 
 if __name__ == '__main__':
-    root = '/Users/lijintao/work/mygit/pyseisview/data/'
+    root = '../../data/'
     lxp = root + 'label_h360x600x400.dat'
     ni, nx, nt = 400, 600, 360
 
diff --git a/examples/more_demos/020-overlay.py b/examples/more_demos/020-overlay.py
index 458db2c..2bca470 100644
--- a/examples/more_demos/020-overlay.py
+++ b/examples/more_demos/020-overlay.py
@@ -138,7 +138,7 @@ def show(bg, fg):
 
 
 if __name__ == '__main__':
-    root = '/Users/lijintao/work/mygit/pyseisview/data/'
+    root = '../../data/'
     sxp = root + 'seis_h360x600x400.dat'
     lxp = root + 'label_h360x600x400.dat'
     ni, nx, nt = 400, 600, 360
diff --git a/examples/more_demos/061-well_logs.py b/examples/more_demos/061-well_logs.py
index 0b0fd93..59f26f6 100644
--- a/examples/more_demos/061-well_logs.py
+++ b/examples/more_demos/061-well_logs.py
@@ -25,7 +25,6 @@ def show(sx, points, values, null_value):
     v2 = v.copy()
     v2[v2 < -900] = v[v!=-999.25].min()
     logs1 = np.concatenate([points, v2[:, np.newaxis]], axis=1)
-    print(v2.min(), v2.max())
     nodes0 = cigvis.create_slices(sx)
     nodes0 += cigvis.create_Line_logs(
         logs1[:, :4],
diff --git a/examples/more_demos/070-f3.py b/examples/more_demos/070-f3.py
index 6490ab4..c9b8572 100644
--- a/examples/more_demos/070-f3.py
+++ b/examples/more_demos/070-f3.py
@@ -28,7 +28,7 @@ def load_wellLog(p):
     x = [259, 619, 339, 141]
     y = [33, 545, 704, 84]
     z = np.arange(0, 0.2 * npoints, 0.2)
-    v = np.fromfile(p, '>f4').reshape(nlog, npoints)
+    v = np.fromfile(p, np.float32).reshape(nlog, npoints)
     v = 0.5 * np.log(v)
 
     nodes = []
@@ -45,36 +45,34 @@ def load_wellLog(p):
 
 if __name__ == '__main__':
 
-    root = '/Users/lijintao/Downloads/F3/f3d/data/'
+    root = '/Users/lijintao/Downloads/data/F3/'
     seisp = root + 'seis.dat'
     saltp = root + 'salt.dat'
-    hz1p = root + 'hz1.dat'
-    hz2p = root + 'hz2.dat'
+    hz2p = root + 'hz.dat'
     uncp = root + 'unc.dat'
-    unc1p = root + 'unc1.dat'
     unc2p = root + 'unc2.dat'
     ni, nx, nt = 591, 951, 362
     shape = (ni, nx, nt)
 
     # seismic slices
-    seis = np.memmap(seisp, '>f4', 'c', shape=shape)
+    seis = np.memmap(seisp, np.float32, 'c', shape=shape)
     nodes = cigvis.create_slices(seis,
                                  pos=[ni - 2, 25, nt - 2],
                                  cmap='gray',
                                  clim=[-2.0, 1.5])
 
     # salt (geologic body)
-    salt = np.memmap(saltp, '>f4', 'c', shape=shape)
+    salt = np.memmap(saltp, np.float32, 'c', shape=shape)
     nodes += cigvis.create_bodys(salt, 0.0, 0.0, color='cyan')
 
     # hrizon (surface)
-    hz2 = np.fromfile(hz2p, '>f4').reshape(ni, nx)
+    hz2 = np.fromfile(hz2p, np.float32).reshape(ni, nx)
     nodes += cigvis.create_surfaces([hz2], color='yellow')
 
     # displacement field of unconformity (volume)
-    unc = np.fromfile(uncp, '>f4').reshape(shape).astype(np.float32)
+    unc = np.fromfile(uncp, np.float32).reshape(shape).astype(np.float32)
     # unconformity (surface)
-    unc2 = np.fromfile(unc2p, '>f4').reshape(ni, nx).astype(np.float32)
+    unc2 = np.fromfile(unc2p, np.float32).reshape(ni, nx).astype(np.float32)
     nodes += cigvis.create_surfaces([unc2], volume=unc, value_type='amp')
 
     # well logs
diff --git a/examples/more_demos/071-f3.py b/examples/more_demos/071-f3.py
index 59145e9..1e3f89d 100644
--- a/examples/more_demos/071-f3.py
+++ b/examples/more_demos/071-f3.py
@@ -91,7 +91,7 @@ def load_wellLog(p):
 
     nodes += load_wellLog(root + 'logs.dat')
 
-    # nodes += cigvis.create_fault_skin(root + 'skins/')
+    nodes += cigvis.create_fault_skin(root + 'skins/')
 
     cigvis.plot3D(nodes,
                   azimuth=-65.0,