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VIPER(1)               DragonFly General Commands Manual              VIPER(1)

NAME

Viper - the simple FEniCS run-time plotter

SYNOPSIS

viper [OPTIONS]

DESCRIPTION

Viper is a minimalistic scientific plotter and run-time visualization module. Some its the features includes: * Light-weight and minimalistic * Extended keybindings * Interactive * Save as png, VTK * 2D and 3D * Scalar, vector, and displacement fields * Multiple input formats * In PyCC mode; direct plotting of NumPy arrays over DOLFIN meshes * Can be used as standalone plotting application, or used as part of PyDOLFIN

OPTIONS

-h, --help Display help text and exit. -i file, --input file Specify input file. -o file, --output file Specify output file. -l lut file, --lut lut file Specify lookup table (LUT) file. -d data file, --data data file Specify data file.

EXAMPLE

Viper has support for visualizing meshes and solutions in DOLFIN: from dolfin import * # Plot a mesh mesh = UnitCube(16, 16, 16) plot(mesh) # Plot a scalar function u = Function("poisson.xml") plot(u) # Plot a vector function as a displacement field d = Function("elasticity.xml") plot(d, mode="displacement") # Save as png p = plot(mesh) p.write_png("mesh.png") # Save as VTK p = plot(u) p.write_vtk("poisson.vtk")

BUGS

Send comments, questions, bug reports etc. to fenics- viper@lists.launchpad.net.

LICENSE

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.

AUTHOR

Ola Skavhaug <skavhaug@simula.no> This manual page was written by Johannes Ring <johannr@simula.no>. VIPER(1)

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