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renderer

Set global rendering attributes.

Synopsis:

renderer option=value, [option=value]

Arguments:

option

An option for the renderer command. See table below.

value

A value associated with the matching option . See table below.

Option

Value

Value Meaning

Default Value

dither

fast, nice

Dithering method employed on pseudocolor displays. Dithering improves picture quality when color resources are limited.

nice

offset

real number in the range [0.0, 0.2]

Specifies how far mesh plots and wireframe blockplots should be drawn in front of other plots.

0.002

optim2d

on, off

When using the Software Renderer, setting this option to true causes all two dimensional plots to be drawn using the X11 renderer. This usually increases interactivity..

off

Description:

The renderer command sets global rendering attributes that are used for drawing in all MeshTV visualization windows. The dither option is used to improve image quality on pseudocolor displays where color resources are limited. If dither is set to fast, an ordered 4x4 dither is used. If dither is set to nice then Floyd-Steinberg error diffusion, which is the default, is used. The offset option is useful for 3d plots that include a mesh plot. The offset option determines how far in front of other plots the mesh plot is drawn. The optim2d option forces MeshTV to use the X11 renderer on 2d plots when using MeshTV with the Software Renderer. This can often improve interactivity.

Examples:

# Make MeshTV use the X11 renderer for 2d plots.

renderer optim2d=on

# Make MeshTV use Floyd-Steinberg dithering.

renderer dither=nice

# Set the mesh offset to a small number.

renderer offset=0.002

See Also:

redraw , replot


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