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NAME

nviz_cmd - Allows rendering GIS data is a 3D space.
Renders surfaces (raster data), 2D/3D vector data, and volumes (3D raster data) in a 3D space.

KEYWORDS

visualization, raster, vector, raster3d

SYNOPSIS

nviz_cmd
nviz_cmd help
nviz_cmd [-a] [elevation_map=name[,name,...]] [elevation_value=value[,value,...]] [color_map=name[,name,...]] [color=name[,name,...]] [mask_map=name[,name,...]] [transparency_map=name[,name,...]] [transparency_value=value[,value,...]] [shininess_map=name[,name,...]] [shininess_value=value[,value,...]] [emission_map=name[,name,...]] [emission_value=value[,value,...]] [mode=string[,string,...]] [resolution_fine=value[,value,...]] [resolution_coarse=value[,value,...]] [style=string[,string,...]] [shading=string[,string,...]] [wire_color=name[,name,...]] [shading=string[,string,...]] [surface_position=x,y,z[,x,y,z,...]] [vline=name[,name,...]] [vline_width=value[,value,...]] [vline_color=name[,name,...]] [vline_mode=string[,string,...]] [vline_height=value[,value,...]] [vline_position=x,y,z[,x,y,z,...]] [vpoint=name[,name,...]] [vpoint_size=value[,value,...]] [vpoint_width=value[,value,...]] [vpoint_color=name[,name,...]] [vpoint_marker=string[,string,...]] [vpoint_position=x,y,z[,x,y,z,...]] [volume=name[,name,...]] [volume_mode=string[,string,...]] [volume_shading=string[,string,...]] [volume_position=x,y,z[,x,y,z,...]] [volume_resolution=value[,value,...]] [isosurf_level=volume:value[,volume:value,...]] [bgcolor=name] [position=x,y] [height=value] [perspective=value] [twist=value] [zexag=value] [light_position=x,y,z] [light_color=name] [light_brightness=integer] [light_ambient=integer] [fringe=string[,string,...]] [fringe_color=name] [fringe_elevation=integer] output=name format=string size=width,height [--verbose] [--quiet]

Flags:

-a
Use draw mode for all loaded surfaces
--verbose
Verbose module output
--quiet
Quiet module output

Parameters:

elevation_map=name[,name,...]
Name of raster map(s) for elevation
elevation_value=value[,value,...]
Elevation value(s)
color_map=name[,name,...]
Name of raster map(s) for color
color=name[,name,...]
Color value(s)
Either a standard color name or R:G:B triplet
mask_map=name[,name,...]
Name of raster map(s) for mask
transparency_map=name[,name,...]
Name of raster map(s) for transparency
transparency_value=value[,value,...]
Transparency value(s)
Options: 0-255
shininess_map=name[,name,...]
Name of raster map(s) for shininess
shininess_value=value[,value,...]
Shininess value(s)
Options: 0-255
emission_map=name[,name,...]
Name of raster map(s) for emission
emission_value=value[,value,...]
Emission value(s)
Options: 0-255
mode=string[,string,...]
Draw mode
Options: coarse,fine,both
Default: fine
resolution_fine=value[,value,...]
Fine resolution
Default: 6
resolution_coarse=value[,value,...]
Coarse resolution
Default: 9
style=string[,string,...]
Draw style
Options: wire,surface
Default: surface
shading=string[,string,...]
Shading
Options: flat,gouraud
Default: gouraud
wire_color=name[,name,...]
Wire color
Either a standard color name or R:G:B triplet
Default: 136:136:136
shading=string[,string,...]
Shading
Options: flat,gouraud
Default: gouraud
surface_position=x,y,z[,x,y,z,...]
Position
Default: 0,0,0
vline=name[,name,...]
Name of line vector overlay map(s)
vline_width=value[,value,...]
Vector line width
Options: 1-100
Default: 2
vline_color=name[,name,...]
Vector line color
Either a standard color name or R:G:B triplet
Default: blue
vline_mode=string[,string,...]
Vector line display mode
Options: surface,flat
Default: surface
vline_height=value[,value,...]
Vector line height
Options: 0-1000
Default: 0
vline_position=x,y,z[,x,y,z,...]
Position
Default: 0,0,0
vpoint=name[,name,...]
Name of point vector overlay map(s)
vpoint_size=value[,value,...]
Icon size
Options: 1-1000
Default: 100
vpoint_width=value[,value,...]
Icon width
Options: 1-1000
Default: 2
vpoint_color=name[,name,...]
Icon color
Either a standard color name or R:G:B triplet
Default: blue
vpoint_marker=string[,string,...]
Icon marker
Options: x,sphere,diamond,cube,box,gyro,aster,histogram
Default: sphere
vpoint_position=x,y,z[,x,y,z,...]
Position
Default: 0,0,0
volume=name[,name,...]
Name of input raster3d map(s)
volume_mode=string[,string,...]
Volume draw mode
Options: isosurface,slice
Default: isosurface
volume_shading=string[,string,...]
Volume shading
Options: flat,gouraud
Default: gouraud
volume_position=x,y,z[,x,y,z,...]
Volume position
Default: 0,0,0
volume_resolution=value[,value,...]
Volume resolution
Default: 3
isosurf_level=volume:value[,volume:value,...]
Isosurface level
bgcolor=name
Background color
Either a standard GRASS color, R:G:B triplet, or "none"
Default: white
position=x,y
Viewpoint position (x,y model coordinates)
Default: 0.84,0.16
height=value
Viewpoint height (in map units)
perspective=value
Viewpoint field of view (in degrees)
Options: 1-100
Default: 40
twist=value
Viewpoint twist angle (in degrees)
Options: -180-180
Default: 0
zexag=value
Vertical exaggeration
light_position=x,y,z
Light position (x,y,z model coordinates)
Default: 0.68,-0.68,0.80
light_color=name
Light color
Either a standard color name or R:G:B triplet
Default: white
light_brightness=integer
Light brightness
Options: 0-100
Default: 80
light_ambient=integer
Light ambient
Options: 0-100
Default: 20
fringe=string[,string,...]
Fringe edges
Options: nw,ne,sw,se
nw: North-West edge
ne: North-East edge
sw: South-West edge
se: South-East edge
fringe_color=name
Fringe color
Either a standard color name or R:G:B triplet
Default: grey
fringe_elevation=integer
Fringe elevation
Default: 55
output=name
Name for output image file (without extension)
format=string
Graphics file format
Options: ppm,tif
Default: ppm
size=width,height
Size (width, height) of output image
Default: 640,480

DESCRIPTION

nviz_cmd allows users to realistically render multiple surfaces (raster data) in a 3D space, optionally using thematic coloring, draping 2D vector data over the surfaces, displaying 3D vector data in the space, and visualization of volume data (3D raster data) from the command line.

EXAMPLE

Render elevation map in a 3D space.
g.region rast=elevation
nviz_cmd elevation_map=elevation output=elev perspective=15

SEE ALSO

wxGUI 3D Viewer

AUTHOR

Martin Landa (Google Summer of Code 2008/2010)

Last changed: $Date: 2010-11-07 07:59:20 -0800 (Sun, 07 Nov 2010) $


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