viper - Online in the Cloud

PROGRAM:

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")

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