6.09HEADmaster

1 files changed, 0 insertions, 218 deletions

diff --git a/hacks/glx/extrusion-taper.c b/hacks/glx/extrusion-taper.c
deleted file mode 100644
index d2d05a1..0000000
--- a/hacks/glx/extrusion-taper.c
+++ /dev/null
@@ -1,218 +0,0 @@
-/* 
- * taper.c
- * 
- * FUNCTION:
- * Draws a tapered screw shape.
- *
- * HISTORY:
- * -- created by Linas Vepstas October 1991
- * -- heavily modified to draw more texas shapes, Feb 1993, Linas
- * -- converted to use GLUT -- December 1995, Linas
- *
- */
-
-#include "extrusion.h"
-
-#include <math.h>
-#include <stdlib.h>
-
-#ifndef NULL
-#define NULL ((void *) 0x0)
-#endif /* NULL */
-
-/* Some <math.h> files do not define M_PI... */
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
-/* =========================================================== */
-
-#define SCALE 3.33333
-#define CONTOUR(x,y) {					\
-   double ax, ay, alen;					\
-   contour[i][0] = SCALE * (x);				\
-   contour[i][1] = SCALE * (y);				\
-   if (i!=0) {						\
-      ax = contour[i][0] - contour[i-1][0];		\
-      ay = contour[i][1] - contour[i-1][1];		\
-      alen = 1.0 / sqrt (ax*ax + ay*ay);		\
-      ax *= alen;   ay *= alen;				\
-      norms [i-1][0] = ay;				\
-      norms [i-1][1] = -ax;				\
-   }							\
-   i++;							\
-}
-
-#define NUM_PTS (25)
-
-static double contour [NUM_PTS][2];
-static double norms [NUM_PTS][2];
-
-static void init_contour (void)
-{
-   int i;
-
-   /* outline of extrusion */
-   i=0;
-   CONTOUR (1.0, 1.0);
-   CONTOUR (1.0, 2.9);
-   CONTOUR (0.9, 3.0);
-   CONTOUR (-0.9, 3.0);
-   CONTOUR (-1.0, 2.9);
-
-   CONTOUR (-1.0, 1.0);
-   CONTOUR (-2.9, 1.0);
-   CONTOUR (-3.0, 0.9);
-   CONTOUR (-3.0, -0.9);
-   CONTOUR (-2.9, -1.0);
-
-   CONTOUR (-1.0, -1.0);
-   CONTOUR (-1.0, -2.9);
-   CONTOUR (-0.9, -3.0);
-   CONTOUR (0.9, -3.0);
-   CONTOUR (1.0, -2.9);
-
-   CONTOUR (1.0, -1.0);
-   CONTOUR (2.9, -1.0);
-   CONTOUR (3.0, -0.9);
-   CONTOUR (3.0, 0.9);
-   CONTOUR (2.9, 1.0);
-
-   CONTOUR (1.0, 1.0);   /* repeat so that last normal is computed */
-}
-   
-/* =========================================================== */
-
-#define PSIZE 40
-static double path[PSIZE][3];
-static double twist[PSIZE];
-static double taper[PSIZE];
-
-static void init_taper (void) {
-   int j;
-   double z, deltaz;
-   double ang, dang;
-
-   z = -10.0;
-   deltaz = 0.5;
-
-   ang = 0.0;
-   dang = 20.0;
-   for (j=0; j<40; j++) {
-      path[j][0] = 0x0;
-      path[j][1] = 0x0;
-      path[j][2] = z;
-
-      twist[j] = ang;
-      ang += dang;
-
-      taper[j] = 0.1 * sqrt (9.51*9.51 - z*z);
-
-      z += deltaz;
-   }
-
-   taper[0] = taper[1];
-   taper[39] = taper[38];
-
-}
-
-/* =========================================================== */
-
-/* controls shape of object */
-extern float lastx;
-extern float lasty;
-
-void InitStuff_taper (void)
-{
-   int style;
-
-   /* configure the pipeline */
-   style = TUBE_JN_CAP;
-   style |= TUBE_CONTOUR_CLOSED;
-   style |= TUBE_NORM_FACET;
-   style |= TUBE_JN_ANGLE;
-   gleSetJoinStyle (style);
-
-   init_contour();
-   init_taper();
-}
-
-/* =========================================================== */
-
-static void gleTaper (int ncp, 
-               gleDouble contour[][2], 
-               gleDouble cont_normal[][2], 
-               gleDouble up[3],
-               int npoints,
-               gleDouble point_array[][3],
-               float color_array[][3],
-               gleDouble taper[],
-               gleDouble twist[])
-{
-   int j;
-   gleAffine *xforms;
-   double co, si, angle;
-
-   /* malloc the extrusion array and the twist array */
-   xforms = (gleAffine *) malloc (npoints * sizeof(gleAffine));
-
-   for (j=0; j<npoints; j++) {
-      angle = (M_PI/180.0) * twist[j];
-      si = sin (angle);
-      co = cos (angle);
-      xforms[j][0][0] = taper[j] * co;
-      xforms[j][0][1] = - taper[j] * si;
-      xforms[j][0][2] = 0.0;
-      xforms[j][1][0] = taper[j] * si;
-      xforms[j][1][1] = taper[j] * co;
-      xforms[j][1][2] = 0.0;
-   }
-
-   gleSuperExtrusion (ncp,               /* number of contour points */
-                contour,    /* 2D contour */
-                cont_normal, /* 2D contour normals */
-                up,           /* up vector for contour */
-                npoints,           /* numpoints in poly-line */
-                point_array,        /* polyline */
-                color_array,        /* color of polyline */
-                xforms);
-
-   free (xforms);
-}
-
-/* =========================================================== */
-
-void DrawStuff_taper (void) {
-   int j;
-   double ang, dang;
-   double z, deltaz;
-   double ponent;
-   z=-1.0;
-   deltaz = 1.999/38;
-   ang = 0.0;
-   dang = lasty/40.0;
-   ponent = fabs (lastx/540.0);
-   for (j=1; j<39; j++) {
-      twist[j] = ang;
-      ang += dang;
-
-      taper[j] = pow ((1.0 - pow (fabs(z), 1.0/ponent)), ponent);
-      z += deltaz;
-   }
-
-   glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-   glColor3f (0.5, 0.6, 0.6);
-
-   /* set up some matrices so that the object spins with the mouse */
-   glPushMatrix ();
-   /* glTranslatef (0.0, 0.0, -80.0); */
-   /* glRotatef (130.0, 0.0, 1.0, 0.0); */
-   /* glRotatef (65.0, 1.0, 0.0, 0.0); */
-
-   /* draw the brand and the handle */
-   gleTaper (20, contour, norms,  NULL, 40, path, NULL, taper, twist);
-
-   glPopMatrix ();
-}
-
-/* ===================== END OF FILE ================== */