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- /*****************************************************/
- /* ShellyV1.4: The ShellShapeGenerator by: */
- /* RANDi */
- /* (rschultz@informatik.uni-rostock.de) */
- /*****************************************************/
-
- #include <math.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
- #include <memory.h>
-
- #include "shelly.h"
-
- int countw = 0, counth = 0, countp = 0;
- double camx = 0, camy = 500, camz = 500;
-
- /********************************************/
- /*cot: */
- /********************************************/
- double
- cot (double in)
- {
- if (sin (in) == 0)
- return (0);
- else
- return (cos (in) / sin (in));
- }
-
-
- /********************************************/
- /*round: */
- /********************************************/
- double
- round (double in)
- {
- if (in - floor (in) < 0.5)
- return (floor (in));
- else
- return (floor (in) + 1);
- }
-
-
- /********************************************/
- /*myfree: */
- /********************************************/
- int
- myfree (struct punkt *anker1)
- {
- struct punkt *hp, *hpnew;
- if (anker1 == NULL)
- return (0);
-
- hp = anker1;
- hpnew = hp;
- do
- {
- hp = hpnew;
- hpnew = (*hp).next;
-
- free (hp);
- }
- while (hpnew != NULL);
-
- return (0);
- }
-
-
- /********************************************/
- /*mycopystr: */
- /********************************************/
- char *
- mycopystr (char *source, char *destination, char endchar)
- {
- int ende = 1;
- char *merk;
-
- merk = destination; /* merk points now on destination */
- while (ende)
- {
- if ((*source == '\0') || (*source == endchar))
- {
- ende = 0;
- }
- else
- {
- *destination = *source;
- destination++;
- source++;
- } /* if */
- } /* while */
- *destination = '\0';
- return (merk);
- }
-
-
- /********************************************/
- /*filecopy: */
- /********************************************/
- void
- filecopy (FILE * source, FILE * dest)
- {
- int a, b;
-
- fseek (source, 0, 0);
- do
- {
- a = fgetc (source);
- if (a != EOF)
- {
- b = fputc (a, dest);
- if (b == EOF)
- {
- fclose (source);
- fclose (dest);
- exit (5);
- }; /* if */
- }; /* if */
- }
- while (a != EOF);
- }
-
- /********************************************/
- /*ReadInfile: */
- /********************************************/
- void
- ReadInfile (struct ShellyArguments *ShellyArgs, char *fin)
- {
- char readline[laenge], hilf[laenge], *hp;
- FILE *fp;
-
- /* set some defaults */
-
- (*ShellyArgs).output = POV;
- (*ShellyArgs).mode = NORMAL;
- (*ShellyArgs).Scan = 0.2;
- (*ShellyArgs).Threshold = 0.001;
- (*ShellyArgs).Scale = 1.0;
- (*ShellyArgs).Render = NO;
- (*ShellyArgs).N2 = 0;
- (*ShellyArgs).N3 = 0;
- (*ShellyArgs).N = 0;
-
-
- mycopystr ("-f +d +w200 +h160", (*ShellyArgs).povargs, '\0');
-
-
- fp = fopen (fin, "r");
- if (fp != NULL)
- {
- fprintf (stderr, "Parsing:");
- while (fgets (readline, laenge, fp) != NULL)
- {
- fprintf (stderr, ".");
-
- hp = strstr (readline, "alpha:");
- if (hp != NULL)
- {
- mycopystr (hp + 6, hilf, '\0');
- (*ShellyArgs).alpha = atof (hilf);
- } /* if */
- hp = strstr (readline, "beta:");
- if (hp != NULL)
- {
- mycopystr (hp + 5, hilf, '\0');
- (*ShellyArgs).beta = atof (hilf);
- } /* if */
- hp = strstr (readline, "phi:");
- if (hp != NULL)
- {
- mycopystr (hp + 4, hilf, '\0');
- (*ShellyArgs).phi = atof (hilf);
- } /* if */
- hp = strstr (readline, "my:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).my = atof (hilf);
- } /* if */
- hp = strstr (readline, "omega:");
- if (hp != NULL)
- {
- mycopystr (hp + 6, hilf, '\0');
- (*ShellyArgs).omega = atof (hilf);
- } /* if */
- hp = strstr (readline, "smin:");
- if (hp != NULL)
- {
- mycopystr (hp + 5, hilf, '\0');
- (*ShellyArgs).smin = atof (hilf);
- } /* if */
- hp = strstr (readline, "smax:");
- if (hp != NULL)
- {
- mycopystr (hp + 5, hilf, '\0');
- (*ShellyArgs).smax = atof (hilf);
- } /* if */
- hp = strstr (readline, "sd:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).sd = atof (hilf);
- } /* if */
- hp = strstr (readline, "A:");
- if (hp != NULL)
- {
- mycopystr (hp + 2, hilf, '\0');
- (*ShellyArgs).A = atof (hilf);
- } /* if */
- hp = strstr (readline, "a:");
- if (hp != NULL)
- {
- mycopystr (hp + 2, hilf, '\0');
- (*ShellyArgs).a = atof (hilf);
- } /* if */
- hp = strstr (readline, "b:");
- if (hp != NULL)
- {
- mycopystr (hp + 2, hilf, '\0');
- (*ShellyArgs).b = atof (hilf);
- } /* if */
- hp = strstr (readline, "P:");
- if (hp != NULL)
- {
- mycopystr (hp + 2, hilf, '\0');
- (*ShellyArgs).P = atof (hilf);
- } /* if */
- hp = strstr (readline, "W1:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).W1 = atof (hilf);
- } /* if */
- hp = strstr (readline, "W2:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).W2 = atof (hilf);
- } /* if */
- hp = strstr (readline, "N:");
- if (hp != NULL)
- {
- mycopystr (hp + 2, hilf, '\0');
- (*ShellyArgs).N = atof (hilf);
- } /* if */
- hp = strstr (readline, "L:");
- if (hp != NULL)
- {
- mycopystr (hp + 2, hilf, '\0');
- (*ShellyArgs).L = atof (hilf);
- } /* if */
- hp = strstr (readline, "omin:");
- if (hp != NULL)
- {
- mycopystr (hp + 5, hilf, '\0');
- (*ShellyArgs).omin = atof (hilf);
- } /* if */
- hp = strstr (readline, "omax:");
- if (hp != NULL)
- {
- mycopystr (hp + 5, hilf, '\0');
- (*ShellyArgs).omax = atof (hilf);
- } /* if */
- hp = strstr (readline, "od:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).od = atof (hilf);
- } /* if */
- hp = strstr (readline, "o2d:");
- if (hp != NULL)
- {
- mycopystr (hp + 4, hilf, '\0');
- (*ShellyArgs).nod = atof (hilf);
- } /* if */
- hp = strstr (readline, "Threshold:");
- if (hp != NULL)
- {
- mycopystr (hp + 10, hilf, '\0');
- (*ShellyArgs).Threshold = atof (hilf);
- } /* if */
- hp = strstr (readline, "Scan:");
- if (hp != NULL)
- {
- mycopystr (hp + 5, hilf, '\0');
- (*ShellyArgs).Scan = atof (hilf);
- } /* if */
-
- hp = strstr (readline, "Scale:");
- if (hp != NULL)
- {
- mycopystr (hp + 6, hilf, '\0');
- (*ShellyArgs).Scale = atof (hilf);
- } /* if */
-
- hp = strstr (readline, "POV");
- if (hp != NULL)
- {
- (*ShellyArgs).output = POV;
- } /* if */
- hp = strstr (readline, "RPL");
- if (hp != NULL)
- {
- (*ShellyArgs).output = RPL;
- } /* if */
- hp = strstr (readline, "T3D");
- if (hp != NULL)
- {
- (*ShellyArgs).output = T3D;
- } /* if */
- hp = strstr (readline, "RAW");
- if (hp != NULL)
- {
- (*ShellyArgs).output = RAW;
- } /* if */
-
- hp = strstr (readline, "NORMAL");
- if (hp != NULL)
- {
- (*ShellyArgs).mode = NORMAL;
- } /* if */
- hp = strstr (readline, "NODULE");
- if (hp != NULL)
- {
- (*ShellyArgs).mode = NODULE;
- } /* if */
- hp = strstr (readline, "RENDER");
- if (hp != NULL)
- {
- (*ShellyArgs).Render = YES;
- } /* if */
-
- hp = strstr (readline, "POVARGS:");
- if (hp != NULL)
- mycopystr (hp + 8, (*ShellyArgs).povargs, '\n');
-
- hp = strstr (readline, "P2:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).P2 = atof (hilf);
- } /* if */
- hp = strstr (readline, "W12:");
- if (hp != NULL)
- {
- mycopystr (hp + 4, hilf, '\0');
- (*ShellyArgs).W12 = atof (hilf);
- } /* if */
- hp = strstr (readline, "W22:");
- if (hp != NULL)
- {
- mycopystr (hp + 4, hilf, '\0');
- (*ShellyArgs).W22 = atof (hilf);
- } /* if */
- hp = strstr (readline, "N2:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).N2 = atof (hilf);
- } /* if */
- hp = strstr (readline, "L2:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).L2 = atof (hilf);
- } /* if */
- hp = strstr (readline, "P3:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).P3 = atof (hilf);
- } /* if */
- hp = strstr (readline, "W13:");
- if (hp != NULL)
- {
- mycopystr (hp + 4, hilf, '\0');
- (*ShellyArgs).W13 = atof (hilf);
- } /* if */
- hp = strstr (readline, "W23:");
- if (hp != NULL)
- {
- mycopystr (hp + 4, hilf, '\0');
- (*ShellyArgs).W23 = atof (hilf);
- } /* if */
- hp = strstr (readline, "N3:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).N3 = atof (hilf);
- } /* if */
- hp = strstr (readline, "L3:");
- if (hp != NULL)
- {
- mycopystr (hp + 3, hilf, '\0');
- (*ShellyArgs).L3 = atof (hilf);
- } /* if */
- hp = strstr (readline, "Off2:");
- if (hp != NULL)
- {
- mycopystr (hp + 5, hilf, '\0');
- (*ShellyArgs).Off2 = atof (hilf);
- } /* if */
- hp = strstr (readline, "Off3:");
- if (hp != NULL)
- {
- mycopystr (hp + 5, hilf, '\0');
- (*ShellyArgs).Off3 = atof (hilf);
- } /* if */
-
- } /* while */
-
- fprintf (stderr, "\n");
- if (fclose (fp) != 0)
- fprintf (stderr, "Error while closing file: %s!\n", fin);
- }
- else
- {
- fprintf (stderr, "Could not open datafile: %s!\n", fin);
- exit (5);
- }
- } /* ReadInfile */
-
-
- /********************************************/
- /* writepovheader: */
- /* */
- /********************************************/
- void
- writepovheader (FILE * fp)
- {
-
- fprintf (fp, "/* POV-Scenefile generated by Shelly1.4 */\n");
- fprintf (fp, "/* by RANDi: (rschultz@informatik.uni-rostock.de) */\n");
-
- fprintf (fp, "#declare te = pigment { color red 1 green 0 blue 0 }\n");
-
- fprintf (fp, "camera\n{\n location <%.1f,%.1f,%.1f>\n", camx, camy, camz);
- fprintf (fp, " look_at <0, 0, 0>\n}\n");
-
- fprintf (fp, "object\n{\n light_source {\n");
- fprintf (fp, " <250, 500, 500> color red 1 green 1 blue 1\n }\n");
- fprintf (fp, "}\n");
- fprintf (fp, "object\n{\n light_source {\n");
- fprintf (fp, " <-250, 500, 500> color red 1 green 1 blue 1\n }\n");
- fprintf (fp, "}\n");
-
- } /* writepovheader */
-
-
- /********************************************/
- /* writepovtriangles: */
- /********************************************/
- int
- writepovtriangles (FILE * fp, struct punkt *anker1, struct punkt *anker2)
- {
- struct punkt *p11, *p12, *p21, *p22;
-
- if ((anker1 == NULL) || (anker2 == NULL))
- return (0);
-
- p11 = anker1;
- p12 = p11;
- p21 = anker2;
- p22 = p21;
-
- do
- {
- p11 = p12;
- p21 = p22;
- p12 = (*p11).next;
- p22 = (*p21).next;
-
- if ((p12 != NULL) && (p22 != NULL))
- {
- fprintf (fp, "triangle{<%.2f,%.2f,%.2f><%.2f,%.2f,%.2f><%.2f,%.2f,%.2f>\n", (*p11).x, (*p11).y, (*p11).z, (*p12).x, (*p12).y, (*p12).z, (*p21).x, (*p21).y, (*p21).z);
- fprintf (fp, "pigment{te}}\n");
-
- fprintf (fp, "triangle{<%.2f,%.2f,%.2f><%.2f,%.2f,%.2f><%.2f,%.2f,%.2f>\n", (*p21).x, (*p21).y, (*p21).z, (*p12).x, (*p12).y, (*p12).z, (*p22).x, (*p22).y, (*p22).z);
- fprintf (fp, "pigment{te}}\n");
- }
- }
- while ((p12 != NULL) && (p22 != NULL));
-
- return (0);
- } /* writepovtriangles */
-
-
- /********************************************/
- /* writepovfinish: */
- /********************************************/
- void
- writepovfinish (FILE * fptemp, FILE * fp)
- {
-
- filecopy (fptemp, fp);
-
- }
-
-
- /********************************************/
- /* writerplline: */
- /********************************************/
- int
- writerplline (FILE * fp, struct punkt *anker1)
- {
- struct punkt *p11, *p12;
-
- if (anker1 == NULL)
- return (0);
-
- p11 = anker1;
- p12 = p11;
-
- countw++; /* calc number of lines created */
-
- fprintf (fp, "%.3f %.3f %.3f\n", (*p11).x / 100.0, (*p11).y / 100.0, (*p11).z / 100.0);
-
- do
- {
- p11 = p12;
- p12 = (*p11).next;
-
- if (p12 != NULL)
- {
- fprintf (fp, "%.3f %.3f %.3f\n", (*p12).x / 100.0, (*p12).y / 100.0, (*p12).z / 100.0);
- }
- }
- while (p12 != NULL);
-
- return (0);
- } /* writerplline */
-
-
- /********************************************/
- /* writerplfinish: */
- /* */
- /********************************************/
- void
- writerplfinish (FILE * fptemp, FILE * fp)
- {
-
- filecopy (fptemp, fp);
-
- fprintf (fp, "%d\n", counth); /* height width of the mesh */
- fprintf (fp, "%d\n", countw);
-
- fprintf (fp, "3\n0\n255 255 255 0\n"); /* RGBA */
- fprintf (fp, "\"Shell\"\n0\n"); /* Name */
- fprintf (fp, "\"CEND\"\n");
- fprintf (fp, "C_MESH DROP\n");
-
- } /* writerplfinish */
-
-
- /********************************************/
- /* writet3dheader: */
- /* */
- /********************************************/
- void
- writet3dheader (FILE * fp)
- {
- char percent = '%';
-
- fprintf (fp, " %c T3Dlib-data-file generated by Shelly1.4\n", percent);
- fprintf (fp, " %c the ShellShapeGenerator by RANDi : \n", percent);
- fprintf (fp, " %c (rschultz@informatik.uni-rostock.de)\n", percent);
-
- fprintf (fp, "OBJ Begin \"Hierarchy 1\"\n");
- fprintf (fp, " DESC Begin \"Object 1 at level 1 of hierarchy 1\"\n");
- fprintf (fp, " NAME \"SHELL\"\n");
- fprintf (fp, " SHAP Shape = 2\n");
- fprintf (fp, " SHAP Lamp = 0\n");
- fprintf (fp, " POSI X=0 Y=0 Z=0\n");
- fprintf (fp, " AXIS XAxis X=1 Y=0 Z=0\n");
- fprintf (fp, " AXIS YAxis X=0 Y=1 Z=0\n");
- fprintf (fp, " AXIS ZAxis X=0 Y=0 Z=1\n");
- fprintf (fp, " SIZE X=32 Y=32 Z=32\n");
-
- } /* writet3dheader */
-
-
- /********************************************/
- /* writet3dline: */
- /********************************************/
- int
- writet3dline (FILE * fp, struct punkt *anker1)
- {
- struct punkt *p11, *p12;
-
- static int called = 0, count = 0;
- if (anker1 == NULL)
- return (0);
-
- if (called == 0)
- {
- called = 1;
- count = -1;
- countw = 0;
- }
- countw++;
-
- p11 = anker1;
- p12 = p11;
-
- fprintf (fp, " PNTS Point[%d] X=%.3f Y=%.3f Z=%.3f\n", ++count, (*p11).x, (*p11).y, (*p11).z);
-
- do
- {
- p11 = p12;
- p12 = (*p11).next;
-
- if (p12 != NULL)
- {
- fprintf (fp, " PNTS Point[%d] X=%.3f Y=%.3f Z=%.3f\n", ++count, (*p12).x, (*p12).y, (*p12).z);
- }
- }
- while (p12 != NULL);
-
- return (0);
- } /* writet3dline */
-
-
- /********************************************/
- /* writet3dfinish: */
- /* */
- /********************************************/
- void
- writet3dfinish (FILE * fptemp, FILE * fp)
- {
- int edges = 0, faces = 0, edgecount = 0, facecount = 0, a = 0, b = 0,
- r = 0, r2 = 0, r3 = 0;
- int point1 = 0, point2 = 0, edge1 = 0, edge2 = 0, edge3 = 0;
-
-
- fprintf (stderr, "\nWriting additional T3Dlib-Data ...");
-
- fprintf (fp, " PNTS PCount %d\n", countp);
-
- filecopy (fptemp, fp);
-
-
- edges = (counth * (countw - 1) + countw * (counth - 1) + (counth - 1) * (countw - 1));
- /* number of edges! */
- fprintf (fp, " EDGE ECount %d\n", edges);
-
-
- /* write horizontal edges */
- for (a = 0; a < counth; a++)
- {
- r = a;
- for (b = 0; b < (countw - 1); b++)
- {
- point1 = r;
- point2 = r + counth;
- fprintf (fp, " EDGE Edge[%d] %d %d\n", edgecount++, point1, point2);
- r = r + counth;
- }
- }
- /* write vertical edges */
- for (a = 0; a < countw; a++)
- {
- r = a * counth;
- for (b = 0; b < (counth - 1); b++)
- {
- point1 = r + b;
- point2 = r + b + 1;
- fprintf (fp, " EDGE Edge[%d] %d %d\n", edgecount++, point1, point2);
- }
- }
- /* write diagonal edges */
- for (a = 0; a < counth - 1; a++)
- {
- r = a;
- for (b = 0; b < (countw - 1); b++)
- {
- point1 = r;
- point2 = r + counth + 1;
- fprintf (fp, " EDGE Edge[%d] %d %d\n", edgecount++, point1, point2);
- r = r + counth;
- }
- }
- /* ohhh boy, THIS (^^^) took me time ! :), now to that faces! */
-
- /* write faces */
-
- faces = 2 * (countw - 1) * (counth - 1);
-
- fprintf (fp, " FACE TCount %d\n", faces);
-
- r = 0;
- r3 = countw * (counth - 1) + counth * (countw - 1);
-
- for (a = 0; a < counth - 1; a++)
- {
- r2 = counth * (countw - 1) + a;
- for (b = 0; b < countw - 1; b++)
- {
- edge1 = r + countw - 1;
- edge2 = r2;
- edge3 = r3;
- fprintf (fp, " FACE Connect[%d] %d %d %d\n", facecount++, edge1, edge2, edge3);
-
- edge1 = r;
- edge2 = r2 + counth - 1;
- edge3 = r3;
- fprintf (fp, " FACE Connect[%d] %d %d %d\n", facecount++, edge1, edge2, edge3);
-
- r++;
- r2 = r2 + counth - 1;
- r3++;
- }
- }
-
- fprintf (fp, " COLR R=98 G=68 B=58\n");
- fprintf (fp, " REFL R=0 G=0 B=0\n");
- fprintf (fp, " TRAN R=0 G=0 B=0\n");
- fprintf (fp, " SPC1 R=0 G=0 B=0\n");
- fprintf (fp, " End DESC \"Object 1 at level 1 of hierarchy 1\"\n");
- fprintf (fp, " TOBJ \"Object 0 at level 1 of hierarchy 1\"\n");
- fprintf (fp, "End OBJ \"Hierarchy 1\"\n");
-
- } /* writet3dfinish */
-
-
- /********************************************/
- /* writerawtriangles: */
- /********************************************/
- int
- writerawtriangles (FILE * fp, struct punkt *anker1, struct punkt *anker2)
- {
- struct punkt *p11, *p12, *p21, *p22;
-
- if ((anker1 == NULL) || (anker2 == NULL))
- return (0);
-
- p11 = anker1;
- p12 = p11;
- p21 = anker2;
- p22 = p21;
-
- do
- {
- p11 = p12;
- p21 = p22;
- p12 = (*p11).next;
- p22 = (*p21).next;
-
- if ((p12 != NULL) && (p22 != NULL))
- {
- fprintf (fp, "%.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f\n", (*p11).x, (*p11).y, (*p11).z, (*p12).x, (*p12).y, (*p12).z, (*p21).x, (*p21).y, (*p21).z);
-
- fprintf (fp, "%.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f\n", (*p21).x, (*p21).y, (*p21).z, (*p12).x, (*p12).y, (*p12).z, (*p22).x, (*p22).y, (*p22).z);
- }
- }
- while ((p12 != NULL) && (p22 != NULL));
-
- return (0);
- } /* writerawtriangles */
-
- /********************************************/
- /*calcg: */
- /********************************************/
- double
- calcg (double O, double N)
- {
- if (N == 0)
- return (0);
- else
- return ((2 * pi) / N * (O * N / (2 * pi) - round (O * N / (2 * pi))));
-
- } /* calcg */
-
-
- /********************************************/
- /*calck: */
- /********************************************/
- double
- calck (struct ShellyArguments *ShellyArgs, double S, double O)
- {
- static double N, N2, N3, L, L2, L3, W1, W2, W12, W13, W22, W23, P, P2,
- P3, Off2, Off3;
- double k = 0, g;
- static int called = 0;
-
-
-
- if (called == 0)
- {
-
- N = (*ShellyArgs).N;
- W1 = (*ShellyArgs).W1 * pi / 180;
- W2 = (*ShellyArgs).W2 * pi / 180;
- P = (*ShellyArgs).P * pi / 180;
- L = (*ShellyArgs).L;
-
- N2 = (*ShellyArgs).N2;
- W12 = (*ShellyArgs).W12 * pi / 180;
- W22 = (*ShellyArgs).W22 * pi / 180;
- P2 = (*ShellyArgs).P2 * pi / 180;
- L2 = (*ShellyArgs).L2;
-
- N3 = (*ShellyArgs).N3;
- W13 = (*ShellyArgs).W13 * pi / 180;
- W23 = (*ShellyArgs).W23 * pi / 180;
- P3 = (*ShellyArgs).P3 * pi / 180;
- L3 = (*ShellyArgs).L3;
-
- Off2 = (*ShellyArgs).Off2 * pi / 180;
- Off3 = (*ShellyArgs).Off3 * pi / 180;
-
- }
-
-
- g = calcg (O, N);
- if (N != 0)
- k = L * exp (-(2 * (S - P) / W1) * (2 * (S - P) / W1)) * exp (-(2 * g / W2) * (2 * g / W2));
-
- g = calcg (O + Off2, N2);
- if (N2 != 0)
- k = k + (L2 * exp (-(2 * (S - P2) / W12) * (2 * (S - P2) / W12)) * exp (-(2 * g / W22) * (2 * g / W22)));
-
- g = calcg (O + Off3, N3);
- if (N3 != 0)
- k = k + (L3 * exp (-(2 * (S - P3) / W13) * (2 * (S - P3) / W13)) * exp (-(2 * g / W23) * (2 * g / W23)));
-
- called = 1;
-
- return (k);
- } /* calck */
-
-
- /********************************************/
- /*innodule: */
- /********************************************/
- double
- innodule (struct ShellyArguments *ShellyArgs, double sc, double O)
- {
- static double N, N2, N3, L, L2, L3, W2, W22, W23, Off2, Off3;
-
- double k1 = 0, k2 = 0, g;
- static int called = 0;
-
-
- if (called == 0)
- {
-
- N = (*ShellyArgs).N;
- W2 = (*ShellyArgs).W2 * pi / 180;
- L = (*ShellyArgs).L;
- N2 = (*ShellyArgs).N2;
- W22 = (*ShellyArgs).W22 * pi / 180;
- L2 = (*ShellyArgs).L2;
- N3 = (*ShellyArgs).N3;
- W23 = (*ShellyArgs).W23 * pi / 180;
- L3 = (*ShellyArgs).L3;
- Off2 = (*ShellyArgs).Off2 * pi / 180;
- Off3 = (*ShellyArgs).Off3 * pi / 180;
-
- called = 1;
- }
-
- g = calcg (O, N);
- if (N != 0)
- k1 = L * exp (-(2 * g / W2) * (2 * g / W2));
- g = calcg (O + Off2, N2);
- if (N2 != 0)
- k1 = k1 + (L2 * exp (-(2 * g / W22) * (2 * g / W22)));
- g = calcg (O + Off3, N3);
- if (N3 != 0)
- k1 = k1 + (L3 * exp (-(2 * g / W23) * (2 * g / W23)));
-
- g = calcg (O + sc, N);
- if (N != 0)
- k2 = L * exp (-(2 * g / W2) * (2 * g / W2));
- g = calcg (O + Off2 + sc, N2);
- if (N2 != 0)
- k2 = k2 + (L2 * exp (-(2 * g / W22) * (2 * g / W22)));
- g = calcg (O + Off3 + sc, N3);
- if (N3 != 0)
- k2 = k2 + (L3 * exp (-(2 * g / W23) * (2 * g / W23)));
-
-
- return (fabs (k1) - fabs (k2));
-
- } /* innodule */
-
-
- /********************************************/
- /*calccamera: */
- /********************************************/
- void
- calccamera (double x, double y, double z)
- {
- static double biggest;
-
-
- if ((fabs (x) > fabs (y)) && (fabs (x) > fabs (z)))
- if (fabs (x) > biggest)
- {
- biggest = fabs (x);
- camy = biggest * 1.5;
- camz = biggest * 1.5;
- }
- if ((fabs (y) > fabs (x)) && (fabs (y) > fabs (z)))
- if (fabs (y) > biggest)
- {
- biggest = fabs (y);
- camy = biggest * 1.5;
- camz = biggest * 1.5;
- }
-
- if ((fabs (z) > fabs (y)) && (fabs (z) > fabs (x)))
- if (fabs (z) > biggest)
- {
- biggest = fabs (z);
- camy = biggest * 1.5;
- camz = biggest * 1.5;
- }
-
-
-
-
- } /* calccamera */
-
-
- /**********************************************/
- /* CalcLine: */
- /* */
- /**********************************************/
- int
- calcline (double O, struct ShellyArguments *ShellyArgs, struct punkt **list)
- {
- struct punkt *list1 = NULL, *L1p1, *L1p2;
- double x, y, z, R, S, Re, k;
- static double my;
- static double smin, smax, sd, a, b, A, beta, phi, omega, alpha, Scale;
- static int called = 0;
-
- if (called == 0)
- {
- smin = (*ShellyArgs).smin * pi / 180;
- smax = (*ShellyArgs).smax * pi / 180;
- sd = (*ShellyArgs).sd * pi / 180;
-
- alpha = (*ShellyArgs).alpha * pi / 180;
- beta = (*ShellyArgs).beta * pi / 180;
- phi = (*ShellyArgs).phi * pi / 180;
- omega = (*ShellyArgs).omega * pi / 180;
- my = (*ShellyArgs).my * pi / 180;
-
- a = (*ShellyArgs).a;
- b = (*ShellyArgs).b;
- A = (*ShellyArgs).A;
-
- Scale = (*ShellyArgs).Scale;
- called = 1;
- }
- counth = 0;
-
- for (S = smin; (S + sd) < smax; S = S + sd)
- {
- counth++;
- countp++;
-
- Re = pow ((pow (a, -2.0) * (cos (S) * cos (S)) + pow (b, -2.0) * (sin (S) * sin (S))), -0.5);
-
- k = calck (ShellyArgs, S, O);
-
- R = Re + k;
-
- /* alternatively: */
- /* R = pow((pow(a,2.0)*pow(cos(S),2.0)+pow(b,2.0)*pow(sin(S),2.0)),0.5); */
-
- x = Scale * (A * sin (beta) * cos (O) + R * cos (S + phi) * cos (O + omega) - R * sin (my) * sin (S + phi) * sin (O)) * exp (O * cot (alpha));
- y = Scale * (-1 * A * sin (beta) * sin (O) - R * cos (S + phi) * sin (O + omega) - R * sin (my) * sin (S + phi) * cos (O)) * exp (O * cot (alpha));
- z = Scale * (-1 * A * cos (beta) + R * sin (S + phi) * cos (my)) * exp (O * cot (alpha));
- calccamera (x, y, z);
-
- if ((L1p1 = calloc (1, sizeof (struct punkt))) == NULL)
- {
- fprintf (stderr, "Shelly: NOT ENOUGH MEMORY!!! ... exiting ... !\n");
- if (S != smin)
- myfree (list1);
- return (5);
- } /* if */
- if (S == smin)
- list1 = L1p1;
- else
- (*L1p2).next = L1p1;
- L1p2 = L1p1;
-
- (*L1p1).x = x;
- (*L1p1).y = y;
- (*L1p1).z = z;
-
- } /* for */
-
- *list = list1;
-
- return (0);
-
- } /* calcline */
-
-
- /**********************************************/
- /* CalcNodule: */
- /* SSIA :) */
- /**********************************************/
- void
- CalcNodule (struct ShellyArguments *ShellyArgs, char *fout)
- {
- struct punkt *list1 = NULL, *list2;
-
- double sc, t, O, Oold, omin, omax, od, nod;
- FILE *fptemp, *fp;
- char *hilf, temp[laenge];
-
- omin = (*ShellyArgs).omin * pi / 180;
- omax = (*ShellyArgs).omax * pi / 180;
- od = (*ShellyArgs).od * pi / 180;
- nod = (*ShellyArgs).nod * pi / 180;
- O = omin;
- t = (*ShellyArgs).Threshold;
- sc = (*ShellyArgs).Scan;
-
- mycopystr (fout, temp, '\0');
- hilf = strchr (temp, '\0');
- if (hilf != NULL)
- mycopystr (".tmp", hilf, '\0');
-
-
- if ((fptemp = fopen (temp, "w+")) == NULL)
- {
- fprintf (stderr, "Could not open outfile: %s!\n", temp);
- exit (5);
- }
-
- if ((fp = fopen (fout, "w")) == NULL)
- {
- fprintf (stderr, "Could not open outfile: %s!\n", fout);
- exit (5);
- }
-
-
- fprintf (stderr, "Calculating the Shell:");
-
- if (calcline (omin, ShellyArgs, &list1) != 0)
- exit (5);
-
- if ((*ShellyArgs).output == RPL)
- writerplline (fptemp, list1);
- if ((*ShellyArgs).output == T3D)
- writet3dline (fptemp, list1);
-
-
- while (O <= omax)
- {
- Oold = O;
-
- while ((innodule (ShellyArgs, sc, O) <= t) && (O - Oold < od))
- O = O + sc;
-
- if (calcline (O, ShellyArgs, &list2) != 0)
- exit (5);
-
- fprintf (stderr, ".");
- fflush (stderr);
-
- if ((*ShellyArgs).output == RPL)
- writerplline (fptemp, list1);
- if ((*ShellyArgs).output == POV)
- writepovtriangles (fptemp, list1, list2);
- if ((*ShellyArgs).output == T3D)
- writet3dline (fptemp, list1);
- if ((*ShellyArgs).output == RAW)
- writerawtriangles (fp, list1, list2);
-
- myfree (list1);
- list1 = list2;
-
- if (innodule (ShellyArgs, sc, O) > t)
- {
- while ((O <= omax) && (innodule (ShellyArgs, sc, O) > t / 2))
- {
-
- O = O + nod;
- if (calcline (O, ShellyArgs, &list2) != 0)
- exit (5);
-
- if ((*ShellyArgs).output == RPL)
- writerplline (fptemp, list1);
- if ((*ShellyArgs).output == POV)
- writepovtriangles (fptemp, list1, list2);
- if ((*ShellyArgs).output == T3D)
- writet3dline (fptemp, list1);
- if ((*ShellyArgs).output == RAW)
- writerawtriangles (fp, list1, list2);
-
- fprintf (stderr, ".");
- fflush (stderr);
-
- myfree (list1);
- list1 = list2;
-
- } /* while */
- } /* if */
- } /* while */
-
-
- if ((*ShellyArgs).output == POV)
- writepovheader (fp);
- if ((*ShellyArgs).output == T3D)
- writet3dheader (fp);
-
-
- if ((*ShellyArgs).output == RPL)
- writerplfinish (fptemp, fp);
- if ((*ShellyArgs).output == T3D)
- writet3dfinish (fptemp, fp);
- if ((*ShellyArgs).output == POV)
- writepovfinish (fptemp, fp);
-
- fprintf (stderr, "\n");
-
- myfree (list1);
-
-
- if (fclose (fptemp) != 0)
- fprintf (stderr, "Error while closing file: %s!\n", temp);
-
- if (fclose (fp) != 0)
- fprintf (stderr, "Error while closing file: %s!\n", fout);
- unlink (temp);
- } /* CalcNodule */
-
-
- /**********************************************/
- /* CalcShell: */
- /* SSIA :) */
- /**********************************************/
- void
- CalcShell (struct ShellyArguments *ShellyArgs, char *fout)
- {
- struct punkt *list1 = NULL, *list2;
-
- double O, omin, omax, od;
- FILE *fptemp, *fp;
- char temp[laenge], *hilf;
-
- omin = (*ShellyArgs).omin * pi / 180;
- omax = (*ShellyArgs).omax * pi / 180;
- od = (*ShellyArgs).od * pi / 180;
-
-
- mycopystr (fout, temp, '\0');
- hilf = strchr (temp, '\0');
- if (hilf != NULL)
- mycopystr (".tmp", hilf, '\0');
-
- if ((fptemp = fopen (temp, "w+")) == NULL)
- {
- fprintf (stderr, "Could not open outfile: %s!\n", temp);
- exit (5);
- }
-
- if ((fp = fopen (fout, "w")) == NULL)
- {
- fprintf (stderr, "Could not open outfile: %s!\n", fout);
- exit (5);
- }
-
-
-
-
- fprintf (stderr, "Calculating the Shell:");
-
- if (calcline (omin, ShellyArgs, &list1) != 0)
- exit (5);
-
-
- if ((*ShellyArgs).output == RPL)
- writerplline (fptemp, list1);
- if ((*ShellyArgs).output == T3D)
- writet3dline (fptemp, list1);
-
- for (O = omin + od; (O + od) < omax; O = O + od)
- {
-
- counth = 0;
-
- if (calcline (O, ShellyArgs, &list2) != 0)
- exit (5);
-
- fprintf (stderr, ".");
- fflush (stderr);
-
-
- if ((*ShellyArgs).output == RPL)
- writerplline (fptemp, list1);
- if ((*ShellyArgs).output == POV)
- writepovtriangles (fptemp, list1, list2);
- if ((*ShellyArgs).output == T3D)
- writet3dline (fptemp, list1);
- if ((*ShellyArgs).output == RAW)
- writerawtriangles (fp, list1, list2);
-
-
- myfree (list1);
- list1 = list2;
-
- } /* for */
-
- if ((*ShellyArgs).output == POV)
- writepovheader (fp);
- if ((*ShellyArgs).output == T3D)
- writet3dheader (fp);
-
-
- if ((*ShellyArgs).output == RPL)
- writerplfinish (fptemp, fp);
- if ((*ShellyArgs).output == T3D)
- writet3dfinish (fptemp, fp);
- if ((*ShellyArgs).output == POV)
- writepovfinish (fptemp, fp);
-
- fprintf (stderr, "\n");
-
- myfree (list1);
-
-
- if (fclose (fptemp) != 0)
- fprintf (stderr, "Error while closing file: %s!\n", temp);
-
- if (fclose (fp) != 0)
- fprintf (stderr, "Error while closing file: %s!\n", fout);
- unlink (temp);
- } /* CalcShell */
-
-
- /**********************************************/
- /* RenderPov: */
- /* invoke pov for rendering */
- /**********************************************/
- void
- RenderPov (struct ShellyArguments *ShellyArgs, char *fout)
- {
- char call[laenge];
-
- printf ("Rendering...\n");
-
- mycopystr ("pov ", call, '\0');
- mycopystr ((*ShellyArgs).povargs, &call[4], '\0');
- strcat (call, " +i");
- strcat (call, fout);
- system (call);
-
-
- } /* RenderPov */
-
-
- /********************************************/
- /*main: */
- /********************************************/
- int
- main (int ac, char **av)
- {
- struct ShellyArguments ShellyArgs;
-
- fprintf (stderr, "ShellyV1.4, the ShellShapeGenerator by RANDi\n");
-
- if (ac != 3)
- {
- fprintf (stderr, "USAGE:\n\n");
- fprintf (stderr, " 'shelly infilename outfilename'\n\n");
- exit (1);
- } /* if */
-
- ReadInfile (&ShellyArgs, av[1]);
-
- if (ShellyArgs.mode == NORMAL)
- CalcShell (&ShellyArgs, av[2]);
- if (ShellyArgs.mode == NODULE)
- CalcNodule (&ShellyArgs, av[2]);
-
- if (ShellyArgs.Render == YES)
- if (ShellyArgs.output != POV)
- fprintf (stderr, "Rendering is only available for POV-output!\n(Ever tried to feed a RPL-Macro into POV? ;))\n");
- else
- RenderPov (&ShellyArgs, av[2]);
-
- exit (0);
- }
-