viper1

Usage

Overview

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.

Examples

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")