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
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
|
(module plplot mzscheme
(require (lib "etc.ss") (lib "list.ss") (lib "foreign.ss"))
(unsafe!)
(define libplplot
(ffi-lib
(build-path (this-expression-source-directory)
"compiled" "native" (system-library-subpath #f) "libplplot")))
(define plplotlibdir (get-ffi-obj "plplotLibDir" libplplot _string))
;; set the lib dir to contain the fonts:
(let ([path (this-expression-source-directory)])
;; free current pointer, if any:
(let ([p (get-ffi-obj "plplotLibDir" libplplot _pointer)])
(when p (free p)))
;; install new value:
(set-ffi-obj! "plplotLibDir" libplplot _bytes
;; malloc the string, since the GC won't see the static variable:
(let* ([gced-bytes (path->bytes path)]
[len (bytes-length gced-bytes)]
[p (malloc (add1 len) 'raw)]
[malloced-bytes (make-sized-byte-string p len)])
(bytes-copy! malloced-bytes 0 gced-bytes)
;; set nul terminator:
(ptr-set! p _byte len 0)
malloced-bytes)))
(define _plflt _double*)
(define _plint _int)
(define (_list-of type . len?)
(let ([len (and (pair? len?) (car len?))])
(make-ctype _pointer
(lambda (l) (list->cblock l type))
(if len
(lambda (b) (cblock->list b type len))
(lambda (b) (error "this list type does not specify a size"))))))
(define (_matrix-of type)
(_list-of (_list-of type)))
(define-syntax define*
(syntax-rules ()
[(_ (name . args) body ...)
(begin (provide name) (define (name . args) body ...))]
[(_ name expr)
(begin (provide name) (define name expr))]))
(define* pl-setup-page
(get-ffi-obj "c_plspage" libplplot
(_fun (xp : _plflt = 0.0)
(yp : _plflt = 0.0)
(xleng : _plint)
(yleng : _plint)
(xoff : _plint = 0)
(yoff : _plint = 0)
-> _void)))
(define* pl-set-device
(get-ffi-obj "c_plsdev" libplplot (_fun _string -> _void)))
(define* pl-set-output-file
(get-ffi-obj "c_plsfnam" libplplot (_fun _string -> _void)))
(define* pl-init-plot
(get-ffi-obj "c_plinit" libplplot (_fun -> _void)))
(define* pl-finish-plot
(get-ffi-obj "c_plend" libplplot (_fun -> _void)))
(define* pl-set-plot-environment
(get-ffi-obj "c_plenv" libplplot
(_fun _plflt _plflt _plflt _plflt _plint _plint -> _void)))
(define* pl-set-labels
(get-ffi-obj "c_pllab" libplplot
(_fun _string _string _string -> _void)))
(define* pl-plot-line
(get-ffi-obj "c_plline" libplplot
(_fun _plint (x : (_list i _plflt)) (y : (_list i _plflt)) -> _void)))
(define* pl-plot-segment
(get-ffi-obj "c_pljoin" libplplot
(_fun _plflt _plflt _plflt _plflt -> _void)))
(define* pl-set-background-color
(get-ffi-obj "c_plscolbg" libplplot
(_fun _plint _plint _plint -> _void)))
(define* pl-select-colormap0-index
(get-ffi-obj "c_plcol0" libplplot
(_fun _plint -> _void)))
(define* pl-set-colormap0-index
(get-ffi-obj "c_plscol0" libplplot
(_fun _plint _plint _plint _plint -> _void)))
(define* pl-set-line-width
(get-ffi-obj "c_plwid" libplplot
(_fun _plint -> _void)))
(define* pl-write-text
(get-ffi-obj "c_plptex" libplplot
(_fun _plflt _plflt _plflt _plflt _plflt _string -> _void)))
;;(define* pl-2d-countour-plot ...)
;;(define* pl-2d-shade-plot ...)
(define* pl-x-error-bars
(get-ffi-obj "c_plerrx" libplplot
(_fun _plint (_list i _plflt)
(_list i _plflt)
(_list i _plflt) -> _void)))
(define* pl-y-error-bars
(get-ffi-obj "c_plerry" libplplot
(_fun _plint (_list i _plflt)
(_list i _plflt)
(_list i _plflt) -> _void)))
(define* pl-plot-points
(get-ffi-obj "c_plpoin" libplplot
(_fun _plint (x : (_list i _plflt)) (y : (_list i _plflt)) _plint
-> _void)))
(define* pl-fill
(get-ffi-obj "c_plfill" libplplot
(_fun (n : _plint = (length x-values))
(x-values : (_list i _plflt))
(y-values : (_list i _plflt))
-> _void)))
(define* pl-world-3d
(get-ffi-obj "c_plw3d" libplplot
(_fun
_plflt _plflt _plflt _plflt _plflt _plflt _plflt _plflt _plflt _plflt _plflt
->
_void)))
;; bit-masks for some of the functions..
(define-values (DRAW_LINEX DRAW_LINEY MAG_COLOR BASE_CONT TOP_CONT SURF_CONT DRAW_SIDES DRAW_FACETED MESH)
(apply values (build-list 9 (lambda (s) (arithmetic-shift 1 s)))))
(define DRAW_LINEXY (bitwise-ior DRAW_LINEX DRAW_LINEY))
(define* pl-plot3d
(get-ffi-obj "c_plot3d" libplplot
(_fun
(x-values : (_list i _plflt))
(y-values : (_list i _plflt))
(z-values : (_matrix-of _plflt))
(nx : _int = (length x-values))
(ny : _int = (length y-values))
(draw-opt1 : _int = DRAW_LINEXY)
(draw-opt2 : _int = 0)
-> _void))) ;; these are documented in the plplot ref manual, and will be obseleted.
(define* pl-mesh3d
(get-ffi-obj "c_plot3d" libplplot
(_fun
(x-values : (_list i _plflt))
(y-values : (_list i _plflt))
(z-values : (_matrix-of _plflt))
(nx : _int = (length x-values))
(ny : _int = (length y-values))
(draw-opt1 : _int = DRAW_LINEXY)
-> _void)))
; ;; this function needs to go.
; (define* pl-plot-points
; (get-ffi-obj "c_plpoin" libplplot
; (_fun
; (nx : _int = (length x-values))
; (x-values : (_list i _plflt))
; (y-values : (_list i _plflt))
; (code : _int))))
(define* pl-box3
(get-ffi-obj "c_plbox3" libplplot
(_fun
(x-ops : _string) (x-title : _string) (x-spacing : _plflt) (x-ticks : _int)
(y-ops : _string) (y-title : _string) (y-spacing : _plflt) (y-ticks : _int)
(z-ops : _string) (z-title : _string) (z-spacing : _plflt) (z-ticks : _int)
-> _void)))
(define* pl-line3
(get-ffi-obj "c_plline3" libplplot
(_fun
(n-points : _int = (length x-values))
(x-values : (_list i _plflt))
(y-values : (_list i _plflt))
(z-values : (_list i _plflt))
-> _void)))
(define* pl-poly3
(get-ffi-obj "c_plpoly3" libplplot
(_fun
(n-points : _int = (length x-values))
(x-values : (_list i _plflt))
(y-values : (_list i _plflt))
(z-values : (_list i _plflt))
(draw-mask : (_list i _int))
(direction : _int)
-> _void)))
;; need the CStruct PLcGrid ;
;; PLFLT *xg, *yg, *zg;
;; PLINT nx, ny, nz;
(define-cstruct _PLcGrid ((xg _pointer)
(yg _pointer)
(zg _pointer)
(nx _int)
(ny _int)
(nz _int)))
(define pl-2d-contour-plot-int
(get-ffi-obj "c_plcont" libplplot
(_fun
(matrix : (_matrix-of _plflt))
(nx : _int = (PLcGrid-nx grid))
(ny : _int = (PLcGrid-ny grid))
(t1 : _plint = 1)
(t2 : _int = (PLcGrid-nx grid))
(t3 : _plint = 1)
(t4 : _int = (PLcGrid-ny grid))
(levels : (_list i _plflt))
(nlevels : _int = (length levels))
(pltr : _fpointer = (get-ffi-obj "pltr1" libplplot _fpointer))
(grid : _PLcGrid-pointer)
-> _void)))
(define* (pl-2d-contour-plot z-vals x-vals y-vals levels)
(let ((grid-obj (make-PLcGrid (list->cblock x-vals _plflt) (list->cblock y-vals _plflt) #f
(length x-vals) (length y-vals) 0)))
(pl-2d-contour-plot-int z-vals levels grid-obj)))
(define pl-2d-shade-plot-int
(get-ffi-obj "c_plshades" libplplot
(_fun
(matrix : (_matrix-of _plflt))
(nx : _int = (PLcGrid-nx grid))
(ny : _int = (PLcGrid-ny grid))
(null-val : _pointer = #f)
(x_min : _plflt = 0)
(x_max : _plflt = 0)
(y_min : _plflt = 0)
(y_max : _plflt = 0)
(levels : (_list i _plflt))
(nlevels : _int = (length levels))
(fill_width : _int = 1)
(cont_col : _int = 1)
(cont_width : _int = 0)
(fill_fun : _fpointer = (get-ffi-obj "c_plfill" libplplot _fpointer))
(rectan : _int = 1)
(pltr : _fpointer = (get-ffi-obj "pltr1" libplplot _fpointer))
(grid : _PLcGrid-pointer)
-> _void)))
(define* (pl-2d-shade-plot z-vals x-vals y-vals levels)
;; this can prolly be inlined above..
(let ((grid-obj (make-PLcGrid (list->cblock x-vals _plflt) (list->cblock y-vals _plflt) #f
(length x-vals) (length y-vals) 0)))
(pl-2d-shade-plot-int z-vals levels grid-obj)))
;; set up color map numbers
(define plscmap1n
(get-ffi-obj "c_plscmap1n" libplplot
(_fun _int -> _void)))
;; set up the map
(define plscmap1l
(get-ffi-obj "c_plscmap1l" libplplot
(_fun
(itype : _plint)
(npts : _int = (length intencity))
(intencity : (_list i _plflt))
(coord1 : (_list i _plflt))
(coord2 : (_list i _plflt))
(coord3 : (_list i _plflt))
(rev : _pointer = #f)
-> _void)))
(define pl-mesh3dc-int
(get-ffi-obj "c_plmeshc" libplplot
(_fun
(x-values : (_list i _plflt))
(y-values : (_list i _plflt))
(z-values : (_matrix-of _plflt))
(x-len : _int = (length x-values))
(y-len : _int = (length y-values))
(opts : _int)
(levels : (_list i _plflt))
(n-levels : _int = (length levels))
-> _void)))
(define* (pl-mesh3dc x-vals y-vals z-vals contours? lines? colored? sides? levels)
(let ((opts (foldl
(lambda (mask use? current) (bitwise-ior current (if use? mask 0)))
0
(list DRAW_LINEXY MAG_COLOR BASE_CONT DRAW_SIDES)
(list contours? lines? colored? sides?))))
(plscmap1n 256)
(plscmap1l 0 '(0.0 1.0) '(240 0) '(.6 .6) '(.8 .8))
(pl-mesh3dc-int x-vals y-vals z-vals opts levels)))
)
|
