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1 | C APFELMAENNCHEN-PROGRAMM, 06.FEBRUARY.2007 PHILIPP HACHTMANN |
2 | C INTERMEDIATE VERSION |
3 | C |
4 | C THIS VERSION SHOULD RUN A BIT FASTER BECAUSE THE SQUARE |
5 | C ROOT IS OMMITTED. |
6 | C |
7 | C SWITCH SETTINGS: |
8 | C SENSE-SWITCH 1: IF SET, ASK FOR PARAMETERS |
9 | C SENSE-SWITCH 2: IF SET, DON'T PRINT PARAMETERS ON START |
10 | C SENSE-SWITCH 3: IF SET, RESTORE PARAMETERS TO DEFAULT VALUES |
11 | C |
12 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
13 | C COMMON BLOCK DECLARATIONS |
14 | C |
15 | INTEGER MAXI,WIDTH,CR,LF,POSI,NEGA |
16 | COMMON /PARAM2/MAXI,WIDTH,CR,LF,POSI,NEGA |
17 | C |
18 | REAL LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
19 | COMMON /PARAM1/LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
20 | C |
21 | INTEGER INIT |
22 | COMMON /PARAM3/INIT |
23 | C |
24 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
25 | C CONFIGURATION |
26 | CCCCCC RESET DO DEFAULT VALUES? |
27 | 110 CALL SSWTCH(3,I) |
28 | IF (I.EQ.1) CALL RST |
29 | C |
30 | CCCCCC ON THE FIRST START OR IF DESIRED |
31 | IF(INIT.EQ.0) CALL STVAL |
32 | C |
33 | CCCCCC DO WE HAVE TO ASK FOR PARAMETERS? |
34 | CALL SSWTCH(1,I) |
35 | IF (I.EQ.1) CALL GETCFG |
36 | C |
37 | CCCCCC OUTPUT SETTINGS? |
38 | CALL SSWTCH(2,I) |
39 | IF(I.EQ.2) CALL OUTCFG |
40 | C |
41 | WRITE (1,55) |
42 | 55 FORMAT (1H0) |
43 | C |
44 | CALL CALC2 |
45 | C |
46 | WRITE(1, 60) |
47 | 60 FORMAT (5HREADY) |
48 | C |
49 | PAUSE 7 |
50 | GO TO 110 |
51 | END |
52 | C END OF MAIN PROGRAM |
53 | C |
54 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
55 | CCCCCC THE MANDELBROT SET CALCULATION |
56 | SUBROUTINE CALC2 |
57 | C |
58 | INTEGER MAXI,WIDTH,CR,LF |
59 | COMMON /PARAM2/MAXI,WIDTH,CR,LF |
60 | REAL LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
61 | COMMON /PARAM1/LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
62 | REAL CMPAVL |
63 | REAL ZR,ZI,ZRN |
64 | REAL X,Y |
65 | INTEGER COUNT |
66 | C |
67 | CCCCCC ENTER THE CALCULATION |
68 | 299 CMPVAL=MAXVAL*MAXVAL |
69 | X=LOWX |
70 | Y=HIGHY |
71 | C |
72 | CCCCCC EINSTIEG IN DEN AKTUELLEN PUNKT |
73 | 300 COUNT=0 |
74 | ZR=0.0 |
75 | ZI=0.0 |
76 | C |
77 | CCCCCC HIER DER ITERIERTE TEIL |
78 | C |
79 | 400 ZRN=ZR*ZR-ZI*ZI+X |
80 | ZI=2.0*ZR*ZI+Y |
81 | ZR=ZRN |
82 | C |
83 | IF ((ZR*ZR+ZI*ZI).GE.CMPVAL) GO TO 410 |
84 | COUNT=COUNT+1 |
85 | IF (COUNT.GE.MAXI) GO TO 410 |
86 | GO TO 400 |
87 | C |
88 | CCCCCC PUNKT FERTIG |
89 | 410 IF (COUNT.EQ.MAXI) CALL BLACK |
90 | IF (COUNT.LT.MAXI) CALL WHITE |
91 | CCCCCC NEUEN PUNKT MACHEN |
92 | 500 X = X + XSTEP |
93 | CCCCCC ZEILE NOCH NICHT VOLL? |
94 | IF (X.LE.HIGHX) GO TO 300 |
95 | CCCCCC X AN ANFANG SETZTEN, CR+LF DRUCKEN |
96 | X = LOWX |
97 | CALL PLOTR |
98 | C |
99 | C |
100 | CCCCCC Y WEITERRUECKEN - NEGATIV WEIL WIR VON OBEN KOMMEN |
101 | Y=Y-YSTEP |
102 | IF (Y.GE.LOWY) GO TO 300 |
103 | C |
104 | CCCCCC HIER IST DAS BILD FERTIG. |
105 | RETURN |
106 | END |
107 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
108 | SUBROUTINE PLOTI |
109 | INTEGER PEN,PENX |
110 | COMMON /PENSTA/PEN,PENX |
111 | CALL PL$UP |
112 | PEN=0 |
113 | PENX=0 |
114 | RETURN |
115 | END |
116 | C |
117 | SUBROUTINE BLACK |
118 | INTEGER PEN,PENX |
119 | COMMON /PENSTA/PEN,PENX |
120 | IF (PEN.EQ.0) CALL PL$PD |
121 | PEN=1 |
122 | CALL PL$R |
123 | PENX=PENX+1 |
124 | RETURN |
125 | END |
126 | C |
127 | SUBROUTINE WHITE |
128 | INTEGER PEN,PENX |
129 | COMMON /PENSTA/PEN,PENX |
130 | IF (PEN.EQ.1) CALL PL$PU |
131 | PEN=0 |
132 | CALL PL$R |
133 | PENX=PENX+1 |
134 | RETURN |
135 | END |
136 | C |
137 | SUBROUTINE PLOTR |
138 | INTEGER PEN,PENX |
139 | COMMON /PENSTA/PEN,PENX |
140 | CALL WHITE |
141 | 8000 IF (PENX.EQ.0) GO TO 8100 |
142 | CALL PL$L |
143 | PENX=PENX-1 |
144 | GO TO 8000 |
145 | 8100 CONTINUE |
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146 | CALL PL$D |
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147 | RETURN |
148 | END |
149 | C |
150 | CCCCCC STARTWERTE AUSFUELLEN |
151 | SUBROUTINE STVAL |
152 | C |
153 | INTEGER MAXI,WIDTH,CR,LF |
154 | COMMON /PARAM2/MAXI,WIDTH,CR,LF |
155 | REAL LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
156 | COMMON /PARAM1/LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
157 | INTEGER INIT |
158 | COMMON /PARAM3/INIT |
159 | C |
160 | CR = 13 |
161 | LF = 10 |
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162 | WIDTH = 120 |
163 | MAXI = 60 |
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164 | MAXVAL = 2.0 |
165 | LOWX =-1.48 |
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166 | HIGHX = 1.2 |
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167 | LOWY =-1.2 |
168 | HIGHY = 1.2 |
169 | INIT = 1 |
170 | C |
171 | CCCCCC SCHRITTWEITEN AUSRECHNEN |
172 | XSTEP = (HIGHX-LOWX)/FLOAT(WIDTH) |
173 | YSTEP = XSTEP |
174 | C |
175 | WRITE (1,1500) |
176 | 1500 FORMAT (20HDEFAULT VALUES USED.) |
177 | RETURN |
178 | END |
179 | C |
180 | C |
181 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
182 | CCCCCC EINSTELLUNGEN EINLESEN |
183 | SUBROUTINE GETCFG |
184 | C |
185 | INTEGER MAXI,WIDTH,CR,LF |
186 | COMMON /PARAM2/MAXI,WIDTH,CR,LF |
187 | REAL LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
188 | COMMON /PARAM1/LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
189 | C |
190 | REAL XIN1,XIN2,YIN1,YIN2 |
191 | C |
192 | WRITE(1,11) |
193 | READ (1,16) XIN1 |
194 | WRITE(1,12) |
195 | READ (1,16) XIN2 |
196 | WRITE(1,13) |
197 | READ (1,16) YIN1 |
198 | WRITE(1,14) |
199 | READ (1,16) YIN2 |
200 | WRITE(1,15) |
201 | READ (1,17) MAXI |
202 | C |
203 | 11 FORMAT(14H X FROM : ) |
204 | 12 FORMAT(14H TO : ) |
205 | 13 FORMAT(14H Y FROM : ) |
206 | 14 FORMAT(14H TO : ) |
207 | 15 FORMAT(14H MAXIT (I3): ) |
208 | 16 FORMAT(F12.0) |
209 | 17 FORMAT(I3) |
210 | C |
211 | CCCCCC EVENTUELL STARTWERTE TAUSCHEN: |
212 | CCCCCC WENN XIN2 GROESSER IST OK, ANSONSTEN TAUSCHEN |
213 | 150 I F(XIN2.GT.XIN1) GO TO 200 |
214 | TEMP = XIN1 |
215 | XIN1 = XIN2 |
216 | XIN2 = TEMP |
217 | C |
218 | CCCCCC WENN YIN2 GROESSER IST OK, ANSONSTEN TAUSCHEN |
219 | 200 IF(YIN2.GT.YIN1) GO TO 201 |
220 | TEMP = YIN1 |
221 | YIN1 = YIN2 |
222 | YIN2 = TEMP |
223 | C |
224 | CCCCCC WERTE UEBERNEHMEN |
225 | 201 LOWX = XIN1 |
226 | HIGHX = XIN2 |
227 | LOWY = YIN1 |
228 | HIGHY = YIN2 |
229 | C |
230 | CCCCCC SCHRITTWEITEN AUSRECHNEN |
231 | XSTEP = (HIGHX-LOWX)/FLOAT(WIDTH) |
232 | YSTEP = 2.0 * XSTEP |
233 | C |
234 | RETURN |
235 | END |
236 | C |
237 | C |
238 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
239 | CCCCCC EINSTELLUNGEN AUSGEBEN |
240 | SUBROUTINE OUTCFG |
241 | C |
242 | INTEGER MAXI,WIDTH,CR,LF |
243 | COMMON /PARAM2/MAXI,WIDTH,CR,LF |
244 | REAL LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
245 | COMMON /PARAM1/LOWX,LOWY,HIGHX,HIGHY,MAXVAL,XSTEP,YSTEP |
246 | C |
247 | WRITE (1,20) |
248 | 20 FORMAT (9HSETTINGS:) |
249 | WRITE (1,30) LOWX, HIGHX |
250 | 30 FORMAT (12HX-WERTE VON ,1F8.5,5H BIS ,1F8.5) |
251 | WRITE (1,40) LOWY, HIGHY |
252 | 40 FORMAT (12HY-WERTE VON ,F8.5,5H BIS ,F8.5) |
253 | WRITE (1,50) MAXI, MAXVAL, XSTEP, YSTEP, WIDTH |
254 | 50 FORMAT ( 4HMAX:,I3, |
255 | + 8H MAXVAL:,F8.5, |
256 | + 7H XSTEP:,F8.5, |
257 | + 7H YSTEP:,F8.5, |
258 | + 7H WIDTH:,I2) |
259 | RETURN |
260 | END |
261 | C |
262 | C |
263 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
264 | CCCCCC RUECKSETZEN |
265 | SUBROUTINE RST |
266 | C |
267 | INTEGER MAXI,WIDTH,CR,LF |
268 | COMMON /PARAM2/MAXI,WIDTH,CR,LF |
269 | C |
270 | WRITE(1,245) |
271 | 245 FORMAT(25HPARAMETER RESET REQUESTED) |
272 | INIT=0 |
273 | RETURN |
274 | END |
275 | C |
276 | C |
277 | CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
278 | C PRELOAD VALUE OF INIT |
279 | BLOCK DATA |
280 | INTEGER INIT |
281 | COMMON /PARAM3/INIT |
282 | DATA INIT/0/ |
283 | END |
284 | CCCCCCCCCCCCCCCCCCCCCCCC |
285 | $0 |