Kecolburn/srt lic

doc/source/examples_source/00-basic/04-ptrace_pathline.py

@@ -1,126 +1,126 @@
-"""
-.. _ptrace_pathline:
-
-Pathline (transient streamline) Creation
-========================================
-
-Utilize EnSight Particle Trace for Pathline (transient streamline).
-Create a Pathline and Animate it.
-
-"""
-
-###############################################################################
-# Start an EnSight session
-# ------------------------
-# Launch and connect to an instance of EnSight.
-# This example uses a local EnSight installation.
-from ansys.pyensight.core import LocalLauncher
-
-session = LocalLauncher().start()
-
-# Setup shortcuts for long winded calls.
-eocore = session.ensight.objs.core
-eonums = session.ensight.objs.enums
-eoutil = session.ensight.utils
-
-###############################################################################
-# Load a dataset
-# --------------
-# Load Flow2D dataset included in the EnSight installation
-# set the timestep to the minimum timestep and render.
-#
-# .. image:: /_static/04_pathline_0.png
-
-session.load_data(f"{session.cei_home}/ensight{session.cei_suffix}/data/flow2d/flow2d.case")
-varname = eocore.VARIABLES["VITESSE"][0]
-eocore.PARTS.set_attr("COLORBYPALETTE", varname)
-session.ensight.objs.core.TIMESTEP = session.ensight.objs.core.TIMESTEP_LIMITS[0]
-session.show("image", width=800, height=600)
-
-
-###############################################################################
-# Create a clip plane
-# -------------------
-# Create a clip through the domain, at X = 0.75.
-# We first call up the default clip part, set attributes, and then create the clip
-# MESHPLANE sets the type of clip (e.g. X, Y, Z, R, T, Z, etc)
-# TOOL sets the tool to create the clip from.
-# VALUE is the location of the clip.
-# DOMAIN controls intersection vs inside vs outside etc.
-# Parent Part is named 'Part by All Elements'
-#
-
-clip = eocore.DEFAULTPARTS[session.ensight.PART_CLIP_PLANE]
-parent_parts = eocore.PARTS["Part by All Elements"][0]
-
-attrs = []
-attrs.append(["MESHPLANE", eonums.MESH_SLICE_X])
-attrs.append(["TOOL", eonums.CT_XYZ])
-attrs.append(["VALUE", 0.75])
-attrs.append(["DOMAIN", eonums.CLIP_DOMAIN_INTER])
-clip = clip.createpart(name="X_Clip", sources=[parent_parts], attributes=attrs)
-
-
-###############################################################################
-# Create a Pathline Trace Emitting from the Clip Part
-# ---------------------------------------------------------
-# Using the 2D parts as the parent (model is 2d), with the "from Part" as the emission type
-# "VITESSE" as the vector, and 25 points along the Clip line as emitter locations.
-# We also setup to first emit the Pathlines at time = 4 seconds.
-# and Emit NEW pathlines ever 20 seconds after that. (They will follow NEW path)
-#
-# .. image:: /_static/04_pathline_1.png
-
-emitter_part = clip
-parent_parts = eoutil.parts.select_parts_by_dimension(2)
-npts = 25  # number of emitters
-vector_var = varname  # Vector variable to use
-pathline_part = eoutil.parts.create_particle_trace_from_parts(
-    "Pathline",
-    vector_var,
-    parts=emitter_part,
-    num_points=npts,
-    source_parts=parent_parts,
-    pathlines=True,
-    emit_time=4.0,
-    delta_time=20.0,
-)
-session.show("image", width=800, height=600)
-
-
-###############################################################################
-# Change Visual Attributes
-# ----------------------------------------------------------
-#  Modify the attributes of the pathlines and animate over time
-#
-# .. image:: /_static/04_pathline_2.png
-
-pathline_part.REPRESENTATION = eonums.TRACE_TUBE
-pathline_part.WIDTHSCALEFACTOR = 0.012
-session.show("image", width=800, height=600)
-
-
-###############################################################################
-# Animate the Pathlines
-# ----------------------------------------------------------
-#  Turn OFF the pathline lines visibility (to see the animate under)
-#  Turn ON the animate pathlines.
-#  Change to Sphere representation, size, and adjust speed and length.
-#
-# .. video:: ../../_static/04_pathline_3.mp4
-#     :width: 640
-#     :height: 360
-#
-
-pathline_part.VISIBLE = False
-pathline_part.ANIMATE = True
-eocore.HEADTYPE = eonums.ATRACE_HEAD_SPHERE
-eocore.HEADSCALE = 0.3
-session.ensight.solution_time.play_forward()
-session.show("animation", width=800, height=600, fps=15)
-
-###############################################################################
-# Close the session
-
-# sphinx_gallery_thumbnail_path = '_static/04_pathline_2.png'
-session.close()
+"""
+.. _ptrace_pathline:
+
+Pathline (transient streamline) Creation
+========================================
+
+Utilize EnSight Particle Trace for Pathline (transient streamline).
+Create a Pathline and Animate it.
+
+"""
+
+###############################################################################
+# Start an EnSight session
+# ------------------------
+# Launch and connect to an instance of EnSight.
+# This example uses a local EnSight installation.
+from ansys.pyensight.core import LocalLauncher
+
+session = LocalLauncher().start()
+
+# Setup shortcuts for long winded calls.
+eocore = session.ensight.objs.core
+eonums = session.ensight.objs.enums
+eoutil = session.ensight.utils
+
+###############################################################################
+# Load a dataset
+# --------------
+# Load Flow2D dataset included in the EnSight installation
+# set the timestep to the minimum timestep and render.
+#
+# .. image:: /_static/04_pathline_0.png
+
+session.load_data(f"{session.cei_home}/ensight{session.cei_suffix}/data/flow2d/flow2d.case")
+varname = eocore.VARIABLES["VITESSE"][0]
+eocore.PARTS.set_attr("COLORBYPALETTE", varname)
+session.ensight.objs.core.TIMESTEP = session.ensight.objs.core.TIMESTEP_LIMITS[0]
+session.show("image", width=800, height=600)
+
+
+###############################################################################
+# Create a clip plane
+# -------------------
+# Create a clip through the domain, at X = 0.75.
+# We first call up the default clip part, set attributes, and then create the clip
+# MESHPLANE sets the type of clip (e.g. X, Y, Z, R, T, Z, etc)
+# TOOL sets the tool to create the clip from.
+# VALUE is the location of the clip.
+# DOMAIN controls intersection vs inside vs outside etc.
+# Parent Part is named 'Part by All Elements'
+#
+
+clip = eocore.DEFAULTPARTS[session.ensight.PART_CLIP_PLANE]
+parent_parts = eocore.PARTS["Part by All Elements"][0]
+
+attrs = []
+attrs.append(["MESHPLANE", eonums.MESH_SLICE_X])
+attrs.append(["TOOL", eonums.CT_XYZ])
+attrs.append(["VALUE", 0.75])
+attrs.append(["DOMAIN", eonums.CLIP_DOMAIN_INTER])
+clip = clip.createpart(name="X_Clip", sources=[parent_parts], attributes=attrs)
+
+
+###############################################################################
+# Create a Pathline Trace Emitting from the Clip Part
+# ---------------------------------------------------------
+# Using the 2D parts as the parent (model is 2d), with the "from Part" as the emission type
+# "VITESSE" as the vector, and 25 points along the Clip line as emitter locations.
+# We also setup to first emit the Pathlines at time = 4 seconds.
+# and Emit NEW pathlines ever 20 seconds after that. (They will follow NEW path)
+#
+# .. image:: /_static/04_pathline_1.png
+
+emitter_part = clip
+parent_parts = eoutil.parts.select_parts_by_dimension(2)
+npts = 25  # number of emitters
+vector_var = varname  # Vector variable to use
+pathline_part = eoutil.parts.create_particle_trace_from_parts(
+    "Pathline",
+    vector_var,
+    parts=emitter_part,
+    num_points=npts,
+    source_parts=parent_parts,
+    pathlines=True,
+    emit_time=4.0,
+    delta_time=20.0,
+)
+session.show("image", width=800, height=600)
+
+
+###############################################################################
+# Change Visual Attributes
+# ----------------------------------------------------------
+#  Modify the attributes of the pathlines and animate over time
+#
+# .. image:: /_static/04_pathline_2.png
+
+pathline_part.REPRESENTATION = eonums.TRACE_TUBE
+pathline_part.WIDTHSCALEFACTOR = 0.012
+session.show("image", width=800, height=600)
+
+
+###############################################################################
+# Animate the Pathlines
+# ----------------------------------------------------------
+#  Turn OFF the pathline lines visibility (to see the animate under)
+#  Turn ON the animate pathlines.
+#  Change to Sphere representation, size, and adjust speed and length.
+#
+# .. video:: ../../_static/04_pathline_3.mp4
+#     :width: 640
+#     :height: 360
+#
+
+pathline_part.VISIBLE = False
+pathline_part.ANIMATE = True
+eocore.HEADTYPE = eonums.ATRACE_HEAD_SPHERE
+eocore.HEADSCALE = 0.3
+session.ensight.solution_time.play_forward()
+session.show("animation", width=800, height=600, fps=15)
+
+###############################################################################
+# Close the session
+
+# sphinx_gallery_thumbnail_path = '_static/04_pathline_2.png'
+session.close()

doc/source/examples_source/00-basic/05-surface_traces_lic.py

@@ -0,0 +1,107 @@
+"""
+.. _surface_traces_lic:
+
+Surface Restricted Traces and Line Integral Convolution
+=======================================================
+
+Utilze EnSight to investigate two types of surface streamlines:
+Surface Restricted Traces (using Particle Trace)
+and LIC (Line Integral Convolution)
+
+Intended to work with EnSight version 24.2 or later
+
+"""
+
+###############################################################################
+# Start an EnSight session
+# ------------------------
+# Launch and connect to an instance of EnSight.
+# This example uses a local EnSight installation.
+from ansys.pyensight.core import LocalLauncher
+
+session = LocalLauncher().start()
+
+# Setup shortcuts for long winded calls.
+eocore = session.ensight.objs.core
+eoutil = session.ensight.utils
+
+###############################################################################
+# Load a dataset
+# --------------
+# Load Shuttle Session file included in the EnSight installation and render
+#
+# .. image:: /_static/05_srt_lic_0.png
+
+session.ensight.objs.ensxml_restore_file(
+    f"{session.cei_home}/ensight{session.cei_suffix}gui/demos/Shuttle Basic.ens"
+)
+session.ensight.view.highlight_parts("OFF")
+session.ensight.view_transf.fit(0)
+session.show("image", width=800, height=600)
+
+###############################################################################
+# Option 1. Using Particle Trace to create Surface Restricted Traces
+# ------------------------------------------------------------------
+# Using a Particle Trace capability
+# Parent Part and Emit part are the same part.
+# Surface Restriction is ON.
+
+# .. image:: /_static/05_srt_lic_1.png
+
+emitter_part = eoutil.parts.select_parts_by_dimension(2)
+parent_parts = emitter_part
+npts = 1500  # number of emitters
+vector_var = eocore.VARIABLES["Momentum"][0]  # Vector variable to use
+
+SRTpart = eoutil.parts.create_particle_trace_from_parts(
+    "SurfaceRestrictedTrace",
+    vector_var,
+    parts=emitter_part,
+    source_parts=parent_parts,
+    direction="+/-",
+    surface_restrict=True,
+    num_points=npts,
+)
+session.show("image", width=800, height=600)
+
+###############################################################################
+# Change Visual Attributes
+# ----------------------------------------------------------
+#  Modify the attributes of the Surface Restricted Traces to
+#  be visually closer to Flourescene or Titantiam Dioxide (experimental use)
+
+# .. image:: /_static/05_str_lic_2.png
+
+SRTpart.colorbyrgb = [0, 1, 0]
+SRTpart.OPAQUENESS = 0.25
+session.show("image", width=800, height=600)
+
+###############################################################################
+# Try Line Integral Convolution (LIC) instead
+# ----------------------------------------------------------
+#  As we don't already have a near-surface, non-zero vector defined we need to create 'Offset' Variable.
+#  Create Offset Variable for Value of Momentum at 2.e-5 distance into fluid domain
+#  Specify Offset Variable as the variable for LIC.
+#  Specify High Contrast and 1 length for the LIC
+#  Specify that we want to see LIC for the Shuttle Surface
+
+# .. image:: /_static/05_srt_lic_3.png
+
+SRTpart.VISIBLE = False
+session.ensight.part.select_byname_begin("(CASE:Case 1)Shuttle")
+session.ensight.variables.evaluate("OffsetVar = OffsetVar(plist,Momentum,2e-05)")
+
+session.ensight.case.sft_variable("OffsetVar")
+session.ensight.case.sft_contrast("ON")
+session.ensight.case.sft_norm_length(1.000000)
+
+session.ensight.part.select_byname_begin("(CASE:Case 1)Shuttle")
+session.ensight.part.show_sft("ON")
+session.show("image", width=800, height=600)
+
+###############################################################################
+# Thumbnail
+# sphinx_gallery_thumbnail_path = '_static/05_srt_lic_3.png'
+
+
+session.close()