viper (1)

viper [OPTIONS]

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

-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.

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")

Send comments, questions, bug reports etc. to [email protected].

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/>.

Ola Skavhaug <[email protected]>

This manual page was written by Johannes Ring <[email protected]>.