FazBrowse GitHub Viewer
|
Trending
|
URL:
|
Home
Tools:
[Download Repo ZIP]
[View Raw Code]
[Original HTTPS Page]
gnuplot/src/jitter.c at 5.5 · gnuplot/gnuplot · GitHub
gnuplot
gnuplot
Repository navigation
Code
Pull requests
2
(2)
Actions
Security and quality
Insights
Expand file tree
Breadcrumbs
gnuplot
/
src
/
jitter.c
Copy path
More file actions
More file actions
Latest commit
History
History
History
244 lines (221 loc) · 8.05 KB
Breadcrumbs
gnuplot
/
src
/
jitter.c
Copy path
File metadata and controls
244 lines (221 loc) · 8.05 KB
Raw
Copy raw file
Download raw file
Open symbols panel
Edit and raw actions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
/*
* This file contains routines used to support the "set jitter" option.
* This plot mode was inspired by the appearance of "beeswarm" plots produced
* by R, but I do not know to what extent the algorithms used are the same.
*/
/*[
* Copyright Ethan A Merritt 2015
*
* Gnuplot license:
*
* Permission to use, copy, and distribute this software and its
* documentation for any purpose with or without fee is hereby granted,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
*
* Permission to modify the software is granted, but not the right to
* distribute the complete modified source code. Modifications are to
* be distributed as patches to the released version. Permission to
* distribute binaries produced by compiling modified sources is granted,
* provided you
* 1. distribute the corresponding source modifications from the
* released version in the form of a patch file along with the binaries,
* 2. add special version identification to distinguish your version
* in addition to the base release version number,
* 3. provide your name and address as the primary contact for the
* support of your modified version, and
* 4. retain our contact information in regard to use of the base
* software.
* Permission to distribute the released version of the source code along
* with corresponding source modifications in the form of a patch file is
* granted with same provisions 2 through 4 for binary distributions.
*
* This software is provided "as is" without express or implied warranty
* to the extent permitted by applicable law.
*
* Alternative license:
*
* As an alternative to distributing code in this file under the gnuplot license,
* you may instead comply with the terms below. In this case, redistribution and
* use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer. Redistributions in binary
* form must reproduce the above copyright notice, this list of conditions and
* the following disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
]*/
#include
"jitter.h"
t_jitter
jitter
=
{{
first_axes
,
first_axes
,
first_axes
,
0.0
,
0.0
,
0.0
},
0.0
,
0.0
,
JITTER_DEFAULT
};
static
int
compare_xypoints
(
SORTFUNC_ARGS
arg1
,
SORTFUNC_ARGS
arg2
);
static
int
compare_xypoints
(
SORTFUNC_ARGS
arg1
,
SORTFUNC_ARGS
arg2
)
{
struct
coordinate
const
*
p1
=
arg1
;
struct
coordinate
const
*
p2
=
arg2
;
/* Primary sort is on x */
/* FIXME: I'd like to treat x coords within jitter.x as equal, */
/* but the coordinate system mismatch makes this hard. */
if
(
p1
->
x
>
p2
->
x
)
return
(
1
);
if
(
p1
->
x
<
p2
->
x
)
return
(
-1
);
if
(
p1
->
y
>
p2
->
y
)
return
(
1
);
if
(
p1
->
y
<
p2
->
y
)
return
(
-1
);
return
(
0
);
}
/*
* "set jitter overlap <ydelta> spread <factor>"
* displaces overlapping points in a point plot.
* The jittering algorithm is inspired by the beeswarm plot variant in R.
*/
static
double
jdist
(
coordinate
*
pi
,
coordinate
*
pj
)
{
int
delx
=
map_x
(
pi
->
x
)
-
map_x
(
pj
->
x
);
int
dely
=
map_y
(
pi
->
y
)
-
map_y
(
pj
->
y
);
return
sqrt
(
delx
*
delx
+
dely
*
dely
);
}
void
jitter_points
(
struct
curve_points
*
plot
)
{
int
i
,
j
;
double
xjit
,
ygap
;
struct
position
yoverlap
;
/* The "x" and "xscale" stored in jitter are really along y */
yoverlap
.
x
=
0
;
yoverlap
.
y
=
jitter
.
overlap
.
x
;
yoverlap
.
scaley
=
jitter
.
overlap
.
scalex
;
map_position_r
(
&
yoverlap
,
&
xjit
,
&
ygap
,
"jitter"
);
/* Clear data slots where we will later store the jitter offsets.
* Store variable color temporarily in z so it is not lost by sorting.
*/
for
(
i
=
0
;
i
<
plot
->
p_count
;
i
++
) {
if
(
plot
->
varcolor
)
plot
->
points
[
i
].
z
=
plot
->
varcolor
[
i
];
plot
->
points
[
i
].
CRD_XJITTER
=
0.0
;
plot
->
points
[
i
].
CRD_YJITTER
=
0.0
;
}
/* Sort points */
qsort
(
plot
->
points
,
plot
->
p_count
,
sizeof
(
struct
coordinate
),
compare_xypoints
);
/* For each point, check whether subsequent points would overlap it. */
/* If so, displace them in a fixed pattern */
i
=
0
;
while
(
i
<
plot
->
p_count
-
1
) {
for
(
j
=
1
;
i
+
j
<
plot
->
p_count
;
j
++
) {
if
(
jdist
(
&
plot
->
points
[
i
],
&
plot
->
points
[
i
+
j
]) >=
ygap
)
break
;
/* Displace point purely on x */
xjit
=
(
j
+
1
)/
2
*
jitter
.
spread
*
plot
->
lp_properties
.
p_size
;
if
(
jitter
.
limit
>
0
)
while
(
xjit
>
jitter
.
limit
)
xjit
-=
jitter
.
limit
;
if
((
j
&
01
)
!=
0
)
xjit
=
-
xjit
;
plot
->
points
[
i
+
j
].
CRD_XJITTER
=
xjit
;
if
(
jitter
.
style
==
JITTER_SQUARE
)
plot
->
points
[
i
+
j
].
CRD_YJITTER
=
plot
->
points
[
i
].
y
-
plot
->
points
[
i
+
j
].
y
;
/* Displace points on y instead of x */
if
(
jitter
.
style
==
JITTER_ON_Y
) {
plot
->
points
[
i
+
j
].
CRD_YJITTER
=
xjit
;
plot
->
points
[
i
+
j
].
CRD_XJITTER
=
0
;
}
}
i
+=
j
;
}
/* Copy variable colors back to where the plotting code expects to find them */
if
(
plot
->
varcolor
) {
for
(
i
=
0
;
i
<
plot
->
p_count
;
i
++
)
plot
->
varcolor
[
i
]
=
plot
->
points
[
i
].
z
;
}
}
/* process 'set jitter' command */
void
set_jitter
()
{
c_token
++
;
/* Default overlap criterion 1 character (usually on y) */
jitter
.
overlap
.
scalex
=
character
;
jitter
.
overlap
.
x
=
1
;
jitter
.
spread
=
1.0
;
jitter
.
limit
=
0.0
;
jitter
.
style
=
JITTER_DEFAULT
;
if
(
END_OF_COMMAND
)
return
;
while
(!
END_OF_COMMAND
) {
if
(
almost_equals
(
c_token
,
"over$lap"
)) {
c_token
++
;
get_position_default
(
&
jitter
.
overlap
,
character
, TRUE,
2
);
}
else
if
(
equals
(
c_token
,
"spread"
)) {
c_token
++
;
jitter
.
spread
=
real_expression
();
if
(
jitter
.
spread
<=
0
)
jitter
.
spread
=
1.0
;
}
else
if
(
equals
(
c_token
,
"swarm"
)) {
c_token
++
;
jitter
.
style
=
JITTER_SWARM
;
}
else
if
(
equals
(
c_token
,
"square"
)) {
c_token
++
;
jitter
.
style
=
JITTER_SQUARE
;
}
else
if
(
equals
(
c_token
,
"wrap"
)) {
c_token
++
;
jitter
.
limit
=
real_expression
();
}
else
if
(
almost_equals
(
c_token
,
"vert$ical"
)) {
c_token
++
;
jitter
.
style
=
JITTER_ON_Y
;
}
else
int_error
(
c_token
,
"unrecognized keyword"
);
}
}
/* process 'show jitter' command */
void
show_jitter
()
{
if
(
jitter
.
spread
<=
0
) {
fprintf
(
stderr
,
"\tno jitter\n"
);
return
;
}
fprintf
(
stderr
,
"\toverlap criterion %g %s coords\n"
,
jitter
.
overlap
.
x
,
coord_msg
[
jitter
.
overlap
.
scalex
]);
fprintf
(
stderr
,
"\tspread multiplier on x (or y): %g\n"
,
jitter
.
spread
);
if
(
jitter
.
limit
>
0
)
fprintf
(
stderr
,
"\twrap at %g character widths\n"
,
jitter
.
limit
);
fprintf
(
stderr
,
"\tstyle: %s\n"
,
jitter
.
style
==
JITTER_SQUARE
?
"square"
:
jitter
.
style
==
JITTER_ON_Y
?
"vertical"
:
"swarm"
);
}
/* process 'unset jitter' command */
void
unset_jitter
()
{
jitter
.
spread
=
0
;
}
/* called by the save command */
void
save_jitter
(
FILE
*
fp
)
{
if
(
jitter
.
spread
<=
0
)
fprintf
(
fp
,
"unset jitter\n"
);
else
{
fprintf
(
fp
,
"set jitter overlap %s%g"
,
jitter
.
overlap
.
scalex
==
character
?
""
:
coord_msg
[
jitter
.
overlap
.
scalex
],
jitter
.
overlap
.
x
);
fprintf
(
fp
,
" spread %g wrap %g"
,
jitter
.
spread
,
jitter
.
limit
);
fprintf
(
fp
,
jitter
.
style
==
JITTER_SQUARE
?
" square\n"
:
jitter
.
style
==
JITTER_ON_Y
?
" vertical\n"
:
"\n"
);
}
}
Back
|
FazBrowse Home
|
New Git URL