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Updated MapObject plug-in.

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--Sven
This commit is contained in:
Sven Neumann
1998-07-16 00:45:41 +00:00
parent a528c42a2e
commit b5b15171ca
15 changed files with 1045 additions and 107 deletions
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106
plug-ins/MapObject/mapobject_preview.c
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@ -16,9 +16,16 @@ BackBuffer backbuf={0,0,0,0,NULL};
void update_light (gint xpos,gint ypos);
void draw_light_marker (gint xpos,gint ypos);
void clear_light_marker (void);
void draw_wireframe_plane(gint startx,gint starty,gint pw,gint ph);
void draw_wireframe_sphere(gint startx,gint starty,gint pw,gint ph);
void clear_wireframe(void);
gint draw_line (gint n, gint startx,gint starty,gint pw,gint ph,
gdouble cx1, gdouble cy1, gdouble cx2, gdouble cy2,
GckVector3 a,GckVector3 b);
void draw_wireframe_plane (gint startx,gint starty,gint pw,gint ph);
void draw_wireframe_sphere (gint startx,gint starty,gint pw,gint ph);
void draw_wireframe_box (gint startx,gint starty,gint pw,gint ph);
void clear_wireframe (void);
/**************************************************************/
/* Computes a preview of the rectangle starting at (x,y) with */
@ -309,6 +316,9 @@ void draw_wireframe(gint startx,gint starty,gint pw,gint ph)
case MAP_SPHERE:
draw_wireframe_sphere(startx,starty,pw,ph);
break;
case MAP_BOX:
draw_wireframe_box(startx,starty,pw,ph);
break;
}
}
@ -519,6 +529,96 @@ void draw_wireframe_sphere(gint startx,gint starty,gint pw,gint ph)
linetab[n].x1=-1;
}
gint draw_line(gint n, gint startx,gint starty,gint pw,gint ph,
gdouble cx1, gdouble cy1, gdouble cx2, gdouble cy2,
GckVector3 a,GckVector3 b)
{
gdouble x1,y1,x2,y2;
gint i = n;
gck_3d_to_2d(startx,starty,pw,ph,&x1,&y1,&mapvals.viewpoint,&a);
gck_3d_to_2d(startx,starty,pw,ph,&x2,&y2,&mapvals.viewpoint,&b);
if (gck_clip_line(&x1,&y1,&x2,&y2,cx1,cy1,cx2,cy2)==TRUE)
{
linetab[i].x1=(gint)(x1+0.5);
linetab[i].y1=(gint)(y1+0.5);
linetab[i].x2=(gint)(x2+0.5);
linetab[i].y2=(gint)(y2+0.5);
linetab[i].linewidth=3;
linetab[i].linestyle=GDK_LINE_SOLID;
gdk_gc_set_line_attributes(gc,linetab[i].linewidth,linetab[i].linestyle,
GDK_CAP_NOT_LAST,GDK_JOIN_MITER);
gdk_draw_line(previewarea->window,gc,linetab[i].x1,linetab[i].y1,
linetab[i].x2,linetab[i].y2);
i++;
}
return(i);
}
void draw_wireframe_box(gint startx,gint starty,gint pw,gint ph)
{
GckVector3 p[8], tmp, scale;
gint n=0,i;
gdouble cx1,cy1,cx2,cy2;
/* Compute wireframe points */
/* ======================== */
init_compute();
scale = mapvals.scale;
gck_vector3_mul(&scale,0.5);
gck_vector3_set(&p[0], -scale.x, -scale.y, scale.z);
gck_vector3_set(&p[1], scale.x, -scale.y, scale.z);
gck_vector3_set(&p[2], scale.x, scale.y, scale.z);
gck_vector3_set(&p[3], -scale.x, scale.y, scale.z);
gck_vector3_set(&p[4], -scale.x, -scale.y, -scale.z);
gck_vector3_set(&p[5], scale.x, -scale.y, -scale.z);
gck_vector3_set(&p[6], scale.x, scale.y, -scale.z);
gck_vector3_set(&p[7], -scale.x, scale.y, -scale.z);
/* Rotate and translate points */
/* =========================== */
for (i=0;i<8;i++)
{
vecmulmat(&tmp,&p[i],rotmat);
gck_vector3_add(&p[i],&tmp,&mapvals.position);
}
/* Draw the box */
/* ============ */
cx1=(gdouble)startx;
cy1=(gdouble)starty;
cx2=cx1+(gdouble)pw;
cy2=cy1+(gdouble)ph;
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[0],p[1]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[1],p[2]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[2],p[3]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[3],p[0]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[4],p[5]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[5],p[6]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[6],p[7]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[7],p[4]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[0],p[4]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[1],p[5]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[2],p[6]);
n = draw_line(n, startx,starty,pw,ph, cx1,cy1,cx2,cy2, p[3],p[7]);
/* Mark end of lines */
/* ================= */
linetab[n].x1=-1;
}
void clear_wireframe(void)
{
gint n=0;