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1.1 root 1: .TH VIEW2D 1
2: .CT 1 graphics
3: .SH NAME
4: view2d, regrid, vdata \- movie of a function f(x, y, t)
5: .SH SYNOPSIS
6: .B view2d
7: [
8: .I option ...
9: ]
10: .I file
11: .LP
12: .B regrid
13: [
14: .I option ...
15: ]
16: .I file
17: .LP
18: .B vdata
19: [
20: .I option ...
21: ]
22: .I file
23: .SH DESCRIPTION
24: .I View2d
25: displays a sequence of functional surfaces on a Teletype 5620 or
26: frame buffer.
27: On the 5620, the surface is ruled with a square mesh
28: and projected isometrically;
29: on a frame buffer, the surface is viewed from above,
30: with height indicated by color.
31: The options are
32: .ta \w'\f5-t\fITS[,TE] 'u
33: .TP
34: .B -T5
35: Output on the 5620;
36: .TP
37: .B -Tc
38: Output on frame buffer (default);
39: .B -Tc
40: is assumed when
41: .L TERM
42: is not 5620.
43: .TP
44: .B -Tp
45: Produce input for
46: .IR plot (1)
47: to produce contour plots.
48: .TP
49: .BI -c n
50: Use
51: .I n
52: colors
53: .RI ( n =32
54: by default)
55: or contours (6 by default).
56: .TP
57: .BI -p s
58: Run movie for
59: .I s
60: seconds
61: .RI ( s =5
62: by default).
63: .PP
64: There are two supported ways to generate input for
65: .IR view2d .
66: .I Vdata
67: takes
68: .SM ASCII
69: input and allows scattered data;
70: .IR view2d (3)
71: can be called from a program that
72: already has data on a grid.
73: .PP
74: .I Regrid
75: changes the grid sizes in
76: .I view2d
77: binary files,
78: with options:
79: .TP
80: .B -b
81: Add a bar at the bottom of the image to indicate time.
82: .TP
83: .BI -n NX , NY
84: Output grid is
85: .IR NX\(muNY ;
86: .BI , NY
87: may be omitted.
88: .TP
89: .BI -f NF
90: Output will have
91: .I NF
92: frames.
93: .TP
94: .B -r
95: The plane of closest fit to the first frame
96: is subtracted from all the frames.
97: .TP
98: .BI -m fmin , fmax
99: Clip the data to the range
100: .I fmin,fmax.
101: .PP
102: One option applies to both
103: .I view2d
104: and
105: .IR regrid :
106: .TP
107: .BI -t TS , TE
108: Display frames from
109: .I TS
110: (default first frame time)
111: to
112: .I TE
113: (may be omitted, default last frame time).
114: .PP
115: .I Vdata
116: takes input in the following format and converts to input for
117: .IR view2d .
118: The first line of each frame has
119: the number of data points in the frame (an integer)
120: and the time (a floating point value).
121: The rest of the lines in the frame consist of blank-separated
122: .I x y z
123: triples.
124: The order of points is irrelevant.
125: The options are:
126: .TP
127: .BI -n NX , NY
128: Output grid is
129: .IR NX\(muNY ;
130: .BI , NY
131: may be omitted.
132: .TP
133: .B -c
134: Use piecewise constant rather than linear interpolation.
135: .TP
136: .B -s
137: Scatterplot the data on a black background.
138: .TP
139: .B -i
140: The data is already on a square grid,
141: in the order
142: .I x
143: and
144: .I y
145: ascending with
146: .I x
147: varying fastest.
148: .SH FILES
149: .F /usr/lib/view2d/*
150: .SH "SEE ALSO"
151: .IR view2d (3),
152: .IR view2d (5),
153: .IR plot (1)
154: .br
155: .F /n/bowell/usr/lib/view2d/howto
156: for more options and how to run equipment.
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