Example a/triangle_mixed_basis: Triangle element with mixed basis functions

Tests use of linear and quadratic simplex basis functions in the same element.

The comfile run by this example is as follows:

# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
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# License.
#
# The Original Code is CMISS triangle mixed basis example.
#
# The Initial Developer of the Original Code is
# Auckland Uniservices Ltd, Auckland, New Zealand.
# Portions created by the Initial Developer are Copyright (C) 2010
# the Initial Developer. All Rights Reserved.
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# either the GNU General Public License Version 2 or later (the "GPL"), or
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# ***** END LICENSE BLOCK *****

{

# Test a mix of finite element basis functions over a triangle
#
# Read a single triangle element containing 3 fields:
# * 2-D "coordinates" using a linear simplex basis
# * scalar "pressure" using a linear simplex basis
# * 2-D "velocity" using a quadratic simplex basis
# To complicate the problem, the linear bases use a scale factor set -
# even though all scale factors are 1, while the velocity uses no
# scale factors, so the default unit scale factor is used.
# It is recommended not to use scale factors for simplex and Lagrangian bases.
gfx read nodes example triangle_coordinates_pressure.exnode;
gfx read elements example triangle_coordinates_pressure.exelem;
gfx read nodes example triangle_velocity.exnode;
gfx read elements example triangle_velocity.exelem;
gfx define faces egroup triangle;
gfx modify g_element triangle general clear circle_discretization 6 default_coordinate coordinates element_discretization "10*10*10" native_discretization none;
gfx modify g_element triangle lines select_on material default selected_material default_selected;
gfx modify g_element triangle element_points glyph arrow_solid general size "0*0.02*0.02" centre 0,0,0 font default orientation velocity scale_factors "0.1*0*0" use_elements cell_corners discretization "8*8*8" native_discretization NONE select_on material default selected_material default_selected;
gfx modify g_element triangle surfaces select_on material default data pressure spectrum default selected_material default_selected render_shaded;
gfx modify spectrum default autorange;

if ($TESTING) {
	# Test writing and reading the whole group
	gfx write elements write_triangle.exelem group triangle;
	gfx read elements write_triangle.exelem;
	# Test writing and reading individual fields in the group
	gfx write elements write_triangle_coordinates.exelem group triangle field coordinates;
	gfx write elements write_triangle_pressure_velocity.exelem group triangle fields pressure & velocity;
	gfx read elements write_triangle_coordinates.exelem;
	gfx read elements write_triangle_pressure_velocity.exelem;
	gfx destroy elements all;
	gfx read elements write_triangle_pressure_velocity.exelem;
	gfx read elements write_triangle_coordinates.exelem;
	# Export the graphics
	gfx export vrml file triangle_mixed_basis.wrl;
} else {
	gfx create window 1;
	gfx modify window 1 view perspective eye_point 0.981395 -1.46621 2.02069 interest_point 0.390842 0.457097 -0.0467995 up_vector -0.236346 0.676846 0.697151 view_angle 37.5028 near_clipping_plane 0.0288485 far_clipping_plane 10.3095 relative_viewport ndc_placement -1 1 2 2 viewport_coordinates 0 0 1 1;
}

}

Files used by this example are:

Name                                  Modified     Size

triangle_mixed_basis.com              17-Mar-2014  4.2k
COPYRIGHT                             17-Mar-2014  504 
triangle_coordinates_pressure.exelem  17-Mar-2014  1.4k
triangle_coordinates_pressure.exnode  17-Mar-2014  473 
triangle_velocity.exelem              17-Mar-2014  1.3k
triangle_velocity.exnode              17-Mar-2014  426 

Download the entire example:

Name                                    Modified     Size

examples_a_triangle_mixed_basis.tar.gz  09-Mar-2016   91k

Testing status by version:

Testing status by file:

• cmiss_test.log
  

  i686-linux
  Failure	cmgui-wx:	diff test: differences with generic answer; Test output.
  Failure	cmgui-wx-debug:	diff test: differences with generic answer; Test output.
  Failure	cmgui-wx-debug-memorycheck:	diff test: differences with generic answer; Test output.
  Failure	cmgui-wx-debug-valgrind:	diff test: differences with generic answer; Test output.
  x86_64-linux
  Failure	cmgui-wx:	diff test: differences with generic answer; Test output.
  Failure	cmgui-wx-debug:	diff test: differences with generic answer; Test output.
  Failure	cmgui-wx-debug-memorycheck:	diff test: differences with generic answer; Test output.
  Failure	cmgui-wx-debug-valgrind:	diff test: differences with generic answer; Test output.

  
  
• triangle_mixed_basis.wrl
  

  i686-linux
  Failure	cmgui-wx:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-memorycheck:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-valgrind:	ndiff test: significant differences with generic answer.
  x86_64-linux
  Failure	cmgui-wx:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-memorycheck:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-valgrind:	ndiff test: significant differences with generic answer.

  
  
• write_triangle.exelem
  

  i686-linux
  Failure	cmgui-wx:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-memorycheck:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-valgrind:	ndiff test: significant differences with generic answer.
  x86_64-linux
  Failure	cmgui-wx:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-memorycheck:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-valgrind:	ndiff test: significant differences with generic answer.

  
  
• write_triangle_coordinates.exelem
  

  i686-linux
  Failure	cmgui-wx:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-memorycheck:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-valgrind:	ndiff test: significant differences with generic answer.
  x86_64-linux
  Failure	cmgui-wx:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-memorycheck:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-valgrind:	ndiff test: significant differences with generic answer.

  
  
• write_triangle_pressure_velocity.exelem
  

  i686-linux
  Failure	cmgui-wx:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-memorycheck:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-valgrind:	ndiff test: significant differences with generic answer.
  x86_64-linux
  Failure	cmgui-wx:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-memorycheck:	ndiff test: significant differences with generic answer.
  Failure	cmgui-wx-debug-valgrind:	ndiff test: significant differences with generic answer.

  
  

Html last generated: Wed Mar 9 16:02:55 2016

Input last modified: Wed Mar 9 15:49:40 2016