-
Notifications
You must be signed in to change notification settings - Fork 3
/
use-pov.lisp
250 lines (241 loc) · 17 KB
/
use-pov.lisp
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
;; -*- Mode:Lisp; Syntax:ANSI-Common-LISP; Coding:us-ascii-unix; fill-column:158 -*-
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;; @file use-pov.lisp
;; @author Mitch Richling <https://www.mitchr.me>
;; @brief Produce Povray files!@EOL
;; @std Common Lisp
;; @see tst-pov.lisp
;; @copyright
;; @parblock
;; Copyright (c) 1997,1998,2004,2012,2013,2015, Mitchell Jay Richling <https://www.mitchr.me> All rights reserved.
;;
;; Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
;;
;; 1. Redistributions of source code must retain the above copyright notice, this list of conditions, and the following disclaimer.
;;
;; 2. 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.
;;
;; 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software
;; without specific prior written permission.
;;
;; 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.
;; @endparblock
;; @todo mjr_pov_make-from-dsimp -- dump height field.@EOL@EOL
;; @todo better unit tests.@EOL@EOL
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defpackage :MJR_POV
(:USE :COMMON-LISP
:MJR_VEC
:MJR_ARR
:MJR_GEOM
:MJR_COLOR
:MJR_ANNOT
:MJR_UTIL
:MJR_DQUAD
:MJR_DSIMP)
(:DOCUMENTATION "Brief: Write Povray files!;")
(:EXPORT #:mjr_pov_help
#:mjr_pov_make-from-dsimp
;; NOT EXPORTED
;; #:mjr_pov_code-curve
))
(in-package :MJR_POV)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun mjr_pov_help ()
"Help for MJR_POV: Create POVray files
The goal is to provide some basic functionality for transforming mathematical data (in the form of an array or embedded in a
function) into Povray files."
(documentation 'mjr_pov_help 'function))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun mjr_pov_code-curve (pts spline &optional (no-degenerate-check nil))
"Return string with code to draw curve.
Arguments:
- PTS ................... Array of points that will be connected end-to-end.
- SPLINE ................ Spline type to use (NIL or a STRING)
- NIL ....... Draw a cylinder connecting the points
- 'cubic' ... Cubic interpolation using a sphere_sweep
- 'linear' .. Linear interpolation using a sphere_sweep
- 'b' ....... ???
- NO-DEGENERATE-CHECK .. Do not check for degenerate segments. Faster if you know the segments are good."
(let* ((pts (if no-degenerate-check
pts
(loop for y = nil then x
for x in pts
when (or no-degenerate-check (null y) (not (mjr_geom_simplex-degeneratep nil x y)))
collect x)))
(npts (length pts)))
(if (<= npts 1)
""
(with-output-to-string (outStr)
(if spline
(let* ((spline (if (< npts 3) "linear" spline))
(non-lin (not (string= "linear" spline))))
(format outStr "sphere_sweep { ~a_spline ~a" spline (if non-lin (+ 2 npts) npts))
(loop initially (if non-lin (format outStr ", ~a, lineDiam" (mjr_vec_code (mjr_vec_- (mjr_vec_* 2 (first pts)) (second pts)) :lang :lang-povray)))
for y = nil then x
for x in pts
do (format outStr ", ~a, lineDiam" (mjr_vec_code x :lang :lang-povray))
finally (if non-lin (format outStr ", ~a, lineDiam" (mjr_vec_code (mjr_vec_- (mjr_vec_* 2 x) y) :lang :lang-povray))))
(format outStr " texture { lineTex } }~%"))
(loop for x in pts
for y in (cdr pts)
when (or no-degenerate-check (not (mjr_geom_simplex-degeneratep nil x y)))
do (format outStr "cylinder {~a, ~a, lineDiam texture { lineTex } }~%" (mjr_vec_code x :lang :lang-povray) (mjr_vec_code y :lang :lang-povray))))))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun mjr_pov_make-from-dsimp (out-file dsimp &key simplices color-data curve-spline surface-normal-data no-degenerate-check
draw-0-simplex-vertexes
draw-1-simplex-vertexes draw-1-simplex-edges
draw-2-simplex-vertexes draw-2-simplex-edges draw-2-simplex-triangles)
"Generate POV-Ray data file from dsimp.
:COLOR-DATA ........... 0-simplex COLOR data set (a dataset name or list containing the dataset simplex dimension and dataset index). This dataset defines
colors for 0-simplex spheres (not vertexes of 1-simplices & 2-simplices), and 2-simplex colors (color is interpolated across the
triangle face based on vertex colors). This argument has no impact on the colors of one simplex objects (the cylinders or
sphere_sweep objects representing one simplices).
:NO-DEGENERATE-CHECK .. Print all simplices includeing degenerate ones.
:SURFACE-NORMAL-DATA .. Surface normals (a vector) at each vertex
:CURVE-SPLINE ......... If non-NIL, will be used as the spline type for a sphere_sweep object representing curves (1-simplices that are 'end-to-end'). When
NIL, one simplices are simple cylinders.
Notes about the generated POV-Ray:
Various primitives represent different dsimp components:
* Spheres: 0-simplices, vertexes for 1-simplices, and vertexes for 2-simplices
* Cylinders: 1-simplices and edges for 2-simplices (sphere_sweep objects are used for 1-simplices when CURVE-SPLINE is non-NIL)
* Triangles: 2-simplices (grouped into a POV-Ray mesh2 object)
Names are defined for different parameters:
* sphTex0simp & sphDia0simp .. sphere primitive diameter & texture for a 0-simplex (not used if COLOR-DATA provided)
* sphTex1simp & sphDia1simp .. sphere primitive diameter & texture for a 1-simplex vertex
* cylTex1simp & cylDia1simp .. cylinder primitive diameter & texture for a 1-simplex line
* sphTex2simp & sphDia2simp .. sphere primitive diameter & texture for a 2-simplex vertex
* cylTex2simp & cylDia2simp .. cylinder primitive diameter & texture for a 2-simplex line
* spsTex1simp & spsDia1simp .. sphere sweep diameter & texture for curves constructed from 1-simplices
* triTex2simp ................ triangle primitive texture for a 2-simplex triangle (not used if COLOR-DATA provided)"
(let* ((simplices (mjr_util_non-list-then-list simplices))
(do-0-simp (member 0 simplices))
(do-1-simp (member 1 simplices))
(do-2-simp (member 2 simplices))
(points (mjr_dsimp_get-simplex-array dsimp 0))
(npts (length points))
(d-balls (make-array (length points) :initial-element nil))
(d-cyls (make-hash-table :test 'equal)))
(with-open-file (dest out-file :direction :output :if-exists :supersede :if-does-not-exist :create)
(labels ((pvc (pv) (mjr_vec_code pv :lang :lang-povray))
(oSph (pt-idx s-dim) (if (not (aref d-balls pt-idx))
(progn (setf (aref d-balls pt-idx) 't)
(format dest "sphere { ~a, sphDia~dsimp texture { sphTex~dsimp } }~%" (pvc (aref points pt-idx)) s-dim s-dim))))
(oCyl (pt-idx-1 pt-idx-2 s-dim) (let ((pt1 (aref points pt-idx-1))
(pt2 (aref points pt-idx-2))
(cky (if (<= pt-idx-1 pt-idx-2)
(format nil "~d|~d" pt-idx-1 pt-idx-2)
(format nil "~d|~d" pt-idx-2 pt-idx-1))))
(if (not (gethash cky d-cyls))
(progn (setf (gethash cky d-cyls ) 't)
(if (or no-degenerate-check (not (mjr_geom_simplex-degeneratep nil pt1 pt2)))
(format dest "cylinder {~a, ~a, cylDia~dsimp texture { cylTex~dsimp } }~%" (pvc pt1) (pvc pt2) s-dim s-dim))))))
(oSS (pt-idxs) (let* ((pts (if no-degenerate-check
pt-idxs
(loop for y = nil then x
for x-idx in pt-idxs
for x = (aref points x-idx)
when (or no-degenerate-check (null y) (not (mjr_geom_simplex-degeneratep nil x y)))
collect x)))
(npts (length pts))
(spline (if (< npts 4) "linear" curve-spline))
(non-lin (not (string= "linear" spline))))
(if (> npts 1)
(progn (format dest "sphere_sweep { ~a_spline ~a" spline (if non-lin (+ 2 npts) npts))
(loop initially (if non-lin (format dest ", ~a, spsDia1simp" (pvc (mjr_vec_- (mjr_vec_* 2 (first pts)) (second pts)))))
for y = nil then x
for x in pts
do (format dest ", ~a, spsDia1simp" (pvc x))
finally (if non-lin (format dest ", ~a, spsDia1simp" (pvc (mjr_vec_- (mjr_vec_* 2 x) y)))))
(format dest " texture { spsTex1simp } }~%"))))))
(if do-0-simp
(if draw-0-simplex-vertexes
(dotimes (pt-idx npts)
(oSph pt-idx 0))))
(if do-1-simp
(if curve-spline
(loop with curve = nil
for seg across (mjr_dsimp_get-simplex-array dsimp 1)
do (cond ((null curve) (setf curve (list (aref seg 1) (aref seg 0))))
((= (car curve) (aref seg 0)) (push (aref seg 1) curve))
('t (progn (oSS curve)
(setf curve (list (aref seg 1) (aref seg 0))))))
finally (oSS curve))
(progn (if draw-1-simplex-vertexes
(loop for cur-simp across (mjr_dsimp_get-simplex-array dsimp 1)
do (loop for pt-idx across cur-simp
do (oSph pt-idx 1))))
(if draw-1-simplex-edges
(loop for cur-simp across (mjr_dsimp_get-simplex-array dsimp 1)
do (oCyl (aref cur-simp 0) (aref cur-simp 1) 1))))))
(if do-2-simp
(progn (if draw-2-simplex-vertexes
(loop for cur-simp across (mjr_dsimp_get-simplex-array dsimp 2)
do (loop for pt-idx across cur-simp
do (oSph pt-idx 2))))
(if draw-2-simplex-edges
(loop for cur-simp across (mjr_dsimp_get-simplex-array dsimp 2)
do (loop for i from 0 upto 2
do (oCyl (mjr_arr_svref-mod cur-simp i) (mjr_arr_svref-mod cur-simp (1+ i)) 2))))
(if draw-2-simplex-triangles
(progn (format dest "mesh2 {~%")
;; POINTS
(format dest " vertex_vectors {~%")
(format dest " ~d" npts)
(loop for pt across points
do (format dest ",~a" (pvc pt)))
(format dest "~%")
(format dest " }~%")
;; NORMALS
(if surface-normal-data
(let* ((normals (mjr_dsimp_get-data-array dsimp surface-normal-data)))
(format dest " normal_vectors {~%")
(format dest " ~d" (length normals))
(loop for a-nrml across normals
do (format dest ",~a" (pvc a-nrml)))
(format dest "~%")
(format dest " }~%")))
;; TEXTURES
(if color-data
(let* ((colors (mjr_dsimp_get-data-array dsimp color-data))
(dattyp (mjr_dsimp_get-data-ano dsimp color-data :ano-typ))
(cuc (mjr_color_make-unpacker-color-space-converter-and-packer (mjr_annot_get-colorpacking dattyp)
(mjr_annot_get-colorspace dattyp)
:cs-rgb
:cp-none))
(ncol (length colors)))
(format dest " texture_list {~%")
(format dest " ~d,~%" ncol)
(loop for a-clr across colors
for lft downfrom (1- ncol)
do (format dest " texture { pigment { rgb ~a } }" (pvc (funcall cuc a-clr)))
when (not (zerop lft))
do (format dest ",~%"))
(format dest " }~%")))
;; TRIANGLES
(let* ((triangles (mjr_dsimp_get-simplex-array dsimp 2))
(ntri (length triangles)))
(format dest " face_indices {~%")
(format dest " ~d,~%" ntri)
(loop for a-tri across triangles
for lft downfrom (1- ntri)
do (format dest " ~a" (pvc a-tri))
do (if color-data
(format dest ", ~d, ~d, ~d" (aref a-tri 0) (aref a-tri 1) (aref a-tri 2)))
when (not (zerop lft))
do (format dest ",~%"))
(format dest "~%")
(format dest " }~%"))
;; MESH COLOR
(if (not color-data)
(format dest " texture { triTex2simp }~%"))
;; MESH OBJECT CLOSE
(format dest "}~%")))))))))