1r3.mkdspf(1) Grass User's Manual r3.mkdspf(1)
2
3
4
6 r3.mkdspf - Creates a display file from an existing grid3 file accord‐
7 ing to specified threshold levels.
8
10 raster3d, voxel
11
13 r3.mkdspf
14 r3.mkdspf help
15 r3.mkdspf [-qf] input=string dspf=string [levels=float[,float,...]]
16 [min=float] [max=float] [step=float] [tnum=integer] [--verbose]
17 [--quiet]
18
19 Flags:
20 -q
21 Suppress progress report & min/max information
22
23 -f
24 Use flat shading rather than gradient
25
26 --verbose
27 Verbose module output
28
29 --quiet
30 Quiet module output
31
32 Parameters:
33 input=string
34 Name of an existing 3d raster map
35
36 dspf=string
37 Name of output display file
38
39 levels=float[,float,...]
40 List of thresholds for isosurfaces
41
42 min=float
43 Minimum isosurface level
44
45 max=float
46 Maximum isosurface level
47
48 step=float
49 Positive increment between isosurface levels
50
51 tnum=integer
52 Number of isosurface threshold levels
53 Default: 7
54
56 Creates a display file from an existing grid3 file according to speci‐
57 fied threshold levels. The display file is a display list of polygons
58 that represent isosurfaces of the data volume. If specific levels are
59 given, additional optional parameters are ignored. Min or max may be
60 used alone or together to specify a sub-range of the data. The step
61 parameter is given precedence over tnum.
62
63 Flags:
64 -q
65 Suppress progress report & min/max information
66
67 -f
68 Use flat shading rather than gradient
69
70 Parameters:
71 grid3
72 Name of an existing 3d raster map
73
74 dspf
75 Name of output display file
76
77 levels
78 List of thresholds for isosurfaces
79
80 min
81 Minimum isosurface level
82
83 max
84 Maximum isosurface level
85
86 step
87 Positive increment between isosurface levels
88
89 tnum
90 Number of isosurface threshold levels
91 Default: 7
92
94 With grid3 data (phdata) in the range 3-7, we only want to see isosur‐
95 face values for the range 4-6. Any of these commands will produce the
96 same results:
97
98 r3.mkdspf phdata dspf=iso min=4.0 max=6.0 tnum=5
99 r3.mkdspf phdata dspf=iso levels=4.0,4.5,5.0,5.5,6.0
100 r3.mkdspf phdata dspf=iso min=4.0 max=6.0 step=0.5
101
102
104 Currently the grid3 file must be in the user's mapset since the display
105 files being created are specific to particular grid3 files and are con‐
106 tained in directories under them. We should create a mechanism where
107 users may make display files from others' grid3 files without having to
108 copy them to their mapset.
109
111 Bill Brown, bbrown@gis.uiuc.edu
112
113 Last changed: $Date: 2006-12-21 15:27:27 +0100 (Thu, 21 Dec 2006) $
114
115 Full index
116
117 © 2003-2008 GRASS Development Team
118
119
120
121GRASS 6.3.0 r3.mkdspf(1)