apollo@ecf.UUCP (11/13/87)
A while back I requested a 3d database for the space shuttle. I received a number
of mail requests for this database so I figured that as soon as someone sent me such
a database that I would post it to the net. Yesterday, Novemeber 12,Ray Kreisel at
SUNY Stony Brook sent me along a database. I will post it and his explanatory notes.
As well I will be include a very simple C program, hacked together by fellow group member
Darin Graham and myself. The program will work as is on an Apollo, for other machines
you will have to make appropriate changes. These should be easy to spot as all our
graphics calls are preceded by gmr_. Also mention is made in the fopen call to a
file named shuttle_data_1 which is the database sans the second line which provides
the upper and lower bounds on the points. This is really convenient for setting up
window parameters. We both know that the program is far from optimum but as I say it
was just a hack that we did in a short time.
From ai.toronto.edu!rutgers.uucp!philabs.philips.com!sbcs!rayk Wed Nov 11 20:55:13 1987
Date: Wed, 11 Nov 87 15:59:19 EST
From: sbcs.RUTGERS.EDU!rayk@rutgers.uucp (Raymond T Kreisel)
To: eecae!upba!mcdchg!clyde!watmath!utgpu!utcsri!uthub!ecf!apollo@super.upenn.edu
Subject: Re: digitized (3D) shuttle data
Newsgroups: comp.graphics,sci.space,sci.space.shuttle
In-Reply-To: <367@mv04.ecf.toronto.edu>
Organization: State University of New York at Stony Brook
Cc:
Here is a simple space shuttle from the SUN workstations demos
the vectors are listd first and then the polygons are listed next.
The first two numbers are the count, for how many vectors and how many
polygons. The polygons just tell which vertices are connected.
ray
---------------------------------------------------------------------------
Ray Kreisel CS Dept., SUNY at Stony Brook, Stony Brook NY 11794
{ucbvax,ihnp4,harvard,rutgers,ut-sally,rochester}!rayk%suny-sb@relay.cs.net
"If I get home before daylight, I just might get some sleep tonight...."
---------------------------------------------------------------------------
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4 8 14 13 9
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4 5 17 16 6
4 4 18 17 5
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4 14 23 22 13
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3 114 100 214
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4 109 219 220 110
4 110 220 215 104
4 215 221 222 216
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4 219 225 226 220
4 220 226 221 215
4 221 233 234 222
4 222 234 235 223
4 223 235 236 224
4 224 236 237 225
4 225 237 238 226
4 226 238 233 221
4 233 239 240 234
4 234 240 241 235
4 235 241 242 236
4 236 242 243 237
4 237 243 244 238
4 238 244 239 233
4 233 239 240 234
4 234 240 241 235
4 235 241 242 236
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4 238 244 239 233
3 245 97 92
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3 91 246 92
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3 245 95 97
4 170 251 250 169
4 171 253 252 170
4 172 254 253 171
4 173 255 254 172
4 174 256 255 173
4 169 257 256 174
4 252 259 258 257
4 253 260 259 252
4 254 261 260 253
4 255 262 261 254
4 256 263 262 255
4 257 258 263 256
4 259 271 270 258
4 260 272 271 259
4 261 273 272 260
4 262 274 273 261
4 263 275 274 262
4 258 270 275 263
4 271 277 276 270
4 272 278 277 271
4 273 279 278 272
4 274 280 279 273
4 275 281 280 274
4 270 276 281 275
4 270 276 277 271
4 271 277 278 272
4 272 278 279 273
4 273 279 280 274
4 274 280 281 275
4 275 281 276 270
3 160 164 282
3 160 282 283
3 160 283 159
3 159 283 284
3 159 284 166
3 282 162 285
3 162 286 285
3 164 162 282
6 189 190 191 192 193 194
6 227 228 229 230 231 232
6 264 265 266 267 268 269
3 287 288 289
3 290 288 287
3 287 291 290
3 165 288 290
3 290 292 165
3 292 293 165
3 293 294 165
3 294 295 165
4 293 292 290 291
3 296 295 294
OK now here is a little C program that will take this and make it usable. Again
no flames about program succinctness please. ( I hope I spelled it correctly)
#include <math.h>
#include <stdio.h>
#include "/sys/ins/base.ins.c"
#include "/sys/ins/error.ins.c"
#include "/sys/ins/pfm.ins.c"
#include "/sys/ins/gmr3d.ins.c"
#define TRUE -1
#define FALSE 0
typedef
struct
{
float x,y,z;
}
point;
status_$t status;
char str[100];
gmr_$i2_point_t bitmap_size = {1280,1024};
gmr_$i2_point_t mysize;
gmr_$i_t num_planes= {1};
gmr_$display_config_t config;
gmr_$file_id_t file_id;
gmr_$structure_id_t shuttle_id;
gmr_$f2_limits_t shuttle_window = {-75.0,75.0,-75.0,75.0};
gmr_$viewport_id_t vpid;
short char_nm_cnt;
main()
{
gmr_$init(gmr_$direct, stream_$stdout, bitmap_size, num_planes, status);
char_nm_cnt=7;
gmr_$file_create("shuttle",char_nm_cnt,gmr_$overwrite,gmr_$1w,file_id,status);
char_nm_cnt=7;
gmr_$structure_create("shuttle",char_nm_cnt,shuttle_id,status);
make_shuttle();
gmr_$structure_close(TRUE,status);
vpid=1;
gmr_$file_set_primary_structure(shuttle_id,status);
gmr_$view_set_window(vpid,shuttle_window,status);
gmr_$viewport_set_structure(vpid,shuttle_id,status);
gmr_$viewport_clear(vpid,status);
gmr_$viewport_refresh(vpid,status);
char_nm_cnt=10;
gets(str);
gmr_$file_close(TRUE,status);
gmr_$terminate(status);
}
make_shuttle()
{ point poly[10];
point pts[1000];
int num_vec,num_poly,i,j,vert,value;
short verts;
FILE *handle;
handle=fopen("shuttle_data_1","r");
fscanf(handle,"%d",&num_vec);
fscanf(handle,"%d",&num_poly);
for(i=0;i<num_vec;i++)
{
fscanf(handle,"%f",&(pts[i].x));
fscanf(handle,"%f",&(pts[i].y));
fscanf(handle,"%f",&(pts[i].z));
}
for(i=0;i<num_poly;i++)
{
fscanf(handle,"%d",&vert);
verts=vert;
for(j=0;j<vert;j++)
{
fscanf(handle,"%d",&value);
poly[j].x = pts[value-1].x;
poly[j].y = pts[value-1].y;
poly[j].z = pts[value-1].z;
}
gmr_$f3_polygon(verts,poly,status);
}
printf("%d\n\r",value);
printf("%f %f %f\n\r",poly[2].x,poly[2].y,poly[2].z);
fclose(handle);
}
Well that's all. Thanks Ray, and I hope this is of use to someone. By the way I spoke to
someone at our computer graphics lab and they mentioned that they would be getting a
3d digitizer in the next few months so maybe I will grab a 72nd scale model of the shuttle
and do the digitization myself. Please let me know if there are others who would be interested.
Vince Pugliese
apollo@ecf.toronto.eduUD140469@NDSUVM1.BITNET (11/17/87)
[a line for the line eater]
Wow, this is great! Only the second or third time I read comp.graphics,
and just when I'm about to ask after 3d image libraries and what do I find
waiting for me? A 3d shuttle! Thanks to the poster of the info--it will come
in handy.
And now a similar request, but on a larger scale. I've recently started
working on a new graphics system here at my university doing animated shows,
etc (or at least learning to). This system, while really neat on the hardware
is rather lacking on the software side, especially in relation to 3d image
libraries (the system, while having full 3d wireframe rotational capabilities,
was mostly intended for star display, so it's 3d image library is pitiful). My
boss has asked me to go out and try to find some libraries to beef up our own.
Here's where I ask help from fellow netters: I would appreciate getting info
on sources of such image libraries (be it email, snailmail, phone #'s, etc).
I would need the libraries themselves and then information on their structure
(so that we can massage the data on our end into a format compatible with our
system). If it's easier, we can go through snail mail instead of over the net.
Of course we'd pay for the cost of any media, phone charges, etc. Public
domain libraries would be appreciated, but not necessary (being a public
university on public funds, we don't have a lot of bucks). We don't really
care what system your data is on--we'll worry about converting it ourselves.
Also, along a related line, are there any fileservers that have collection of
these 3d images?
Any help would be very much appreciated!
Scott Udell
UD140469@NDSUVM1.BITNET
University of North Dakota
P.S. I'm a beginner at graphics work, so please forgive me if I've used any
incorrect terminology...
[another line to be eaten]billa@cvedc.UUCP (Bill Anderson) (11/24/87)
In article <> apollo@ecf.toronto.edu (Vince Pugliese) writes: > >As well I will be include a very simple C program, hacked together by fellow group member >Darin Graham and myself. The program will work as is on an Apollo, for other machines >you will have to make appropriate changes. These should be easy to spot as all our >graphics calls are preceded by gmr_. If anyone out there in netland converts this C program so that it can be run on suns, please post the results of your work to the net. Thanks. =============================================================== _____ __ Bill Anderson ..tektronix!reed!cvedc!wanderson | __| / / Computervision ..sun!cvbnet!cvedc!wanderson | ( / / 14952 NW Greenbrier Parkway FAX (503) 645-4734 | \_/ / Beaverton, Oregon 97006 Phone (503) 645-2410 \______/
shane@pepe.cc.umich.edu (Shane Looker) (11/25/87)
In article <509@otto.cvedc.UUCP> billa@otto.UUCP (Bill Anderson) writes: >In article <> apollo@ecf.toronto.edu (Vince Pugliese) writes: >> >>As well I will be include a very simple C program, hacked together by fellow group member >>Darin Graham and myself. The program will work as is on an Apollo, for other machines >>you will have to make appropriate changes. These should be easy to spot as all our >>graphics calls are preceded by gmr_. > >If anyone out there in netland converts this C program so that it can be >run on suns, please post the results of your work to the net. Not what was asked for, but I've just knocked together a viewer for the shuttle on the Mac. It needs a lot of work, but the guts are fairly simple. Mail me if you want a little more info. My supervisor's going to kill me, but what the heck... Shane Looker | "He's dead Jim, shane@pepe.cc.umich.edu | you grab his tricorder, uunet!umix!pepe.cc.umich.edu!shane | I'll get his wallet." Looker@um.cc.umich.edu
ralph@me.brunel.ac.uk (Ralph Mitchell) (12/04/87)
In article <509@otto.cvedc.UUCP> billa@otto.UUCP (Bill Anderson) writes: >In article <> apollo@ecf.toronto.edu (Vince Pugliese) writes: >> >>As well I will be include a very simple C program, hacked together by fellow group member >> [...] > >If anyone out there in netland converts this C program so that it can be >run on suns, please post the results of your work to the net. It has already been done. The program should be in /usr/demo/SRC/shaded.c, the shuttle data is in /usr/demo/DATA/space.dat. There are notes on running it in /usr/demo/README. The program displays 2 windows with cursor lines, to enable you to select the 3d viewpoint, and there's a pop-up menu for setting fill style and colour, &c. For monochrome you need to select the "edges" (I think) fill style or it'll look pretty wierd. Also, if your display surface doesn't support hidden surface removal, you'll get a wireframe effect that can be confusing to the eye. /usr/demo/DATA also contains data files for an icosahedron, a pyramid, a ball and a Klein bottle. -- From: Ralph Mitchell at Brunel University, Uxbridge, UB8, 3PH, UK JANET: ralph@uk.ac.brunel.cc ARPA: ralph%cc.brunel.ac.uk@cwi.nl UUCP: ...ukc!cc.brunel!ralph PHONE: +44 895 74000 x2561 "There's so many different worlds, so many different Suns" -- Dire Straits