+++ /dev/null
-
-
- /* MPE Graphics Demonstration */
-
- /* Michel Vallieres */
-
-#include <stdio.h>
-#include <math.h>
-#include <sys/time.h>
-#include <stdlib.h>
-#include "mpi.h"
-#include "mpe.h"
-#include "mpe_graphics.h"
-
-#define WINDOW_SIZE_X 600
-#define WINDOW_SIZE_Y 500
-
-int draw_something( MPE_XGraph graph, int myid )
-{
- /* draw line & graph update */
-
- int iy, iy_coordinate, ix_coordinate_1, ix_coordinate_2;
-
- for ( iy=1 ; iy < 5 ; iy++ )
- {
- iy_coordinate = iy*WINDOW_SIZE_Y/7 + 10*myid;
- ix_coordinate_1 = 100 + 10*myid;
- ix_coordinate_2 = ix_coordinate_1 + iy*50;
- MPE_Draw_line( graph, ix_coordinate_1, iy_coordinate,
- ix_coordinate_2, iy_coordinate,
- MPE_BLACK );
- }
- /* update graph */
- MPE_Update( graph );
-}
-
-int try_colors ( MPE_XGraph graph, int myid, MPE_Color colors[], int nc )
-{
- /* -- draw -- the palette */
- /* i.e., lines of various colors */
- int ic;
- for ( ic=1 ; ic<=nc ; ic++ )
- {
- MPE_Draw_line( graph, 20+ic, WINDOW_SIZE_Y-20,
- 20+ic, WINDOW_SIZE_Y-50,
- colors[ic] );
- }
- /* update graph */
- MPE_Update( graph );
-}
-
-int draw_various_shapes( MPE_XGraph graph, int myid, int numprocs,
- MPE_Color colors[], int nc )
-{
- /* examples of different shapes */
- int xc, yc, radius, is, ns, listpe[100];
- MPE_Point points[500];
- int ip, shift, N_points;
-
- ns = 3; /* list of processes */
- listpe[0] = 0; /* each process will draw */
- for ( is=1; is<ns ; is++ ) /* different objects */
- {
- listpe[is] = listpe[is-1] + 1;
- if ( listpe[is] > numprocs-1 ) listpe[is] = 0;
- }
- /* filled circle */
- if ( myid == listpe[0] )
- {
- xc = 0.8*WINDOW_SIZE_X;
- yc = 0.2*WINDOW_SIZE_Y;
- radius = 0.01*(WINDOW_SIZE_X + WINDOW_SIZE_Y);
- MPE_Fill_circle( graph, xc, yc, radius, colors[120]);
- }
- /* -- empty -- circle */
- if ( myid == listpe[1] )
- {
- xc = 0.8*WINDOW_SIZE_X;
- yc = 0.3*WINDOW_SIZE_Y;
- radius = 0.01*(WINDOW_SIZE_X + WINDOW_SIZE_Y);
- MPE_Draw_circle( graph, xc, yc, radius, colors[120]);
- }
- /* colored X */
- /* draw a bunch of points */
- /* at once -- efficient */
- if ( myid == listpe[2] )
- {
- xc = 0.8*WINDOW_SIZE_X;
- yc = 0.4*WINDOW_SIZE_Y;
- N_points = nc;
- shift = N_points/4;
- for ( ip=0 ; ip<N_points ; ip++ )
- {
- points[ip].x = xc + ip - shift;
- points[ip].y = yc + ip/2;
- points[ip].c = colors[ip];
- if ( ip > N_points/2 )
- {
- points[ip].x = xc + ip - N_points/2 - shift;
- points[ip].y = yc + (- ip + N_points)/2;
- }
- }
- MPE_Draw_points( graph, points, N_points);
- }
- /* update graph */
- MPE_Update( graph );
-}
-
-
-int quit_by_touch( MPE_XGraph graph )
-{
- /* interacting with graphic */
- int x, y, button, xc, yc, w, h, xs, ys;
-
- xc = 0.95*WINDOW_SIZE_X; /* draw filled rectangle */
- yc = 0.95*WINDOW_SIZE_Y; /* lower bottom corner */
- w = WINDOW_SIZE_X - xc; /* of graphic window */
- h = WINDOW_SIZE_Y - yc;
- MPE_Fill_rectangle( graph, xc, yc, w, h, MPE_BLACK );
- xs = xc+0.4*w;
- ys = yc + 0.8*h;
- MPE_Draw_string( graph, xs, ys, MPE_WHITE, "Q" );
- /* infinite loop */
- /* wait for different touch */
- for ( ; ; )
- {
- /* wait for mouse to touch graph */
- /* can only be done by master */
- MPE_Get_mouse_press( graph, &x, &y, &button );
- /* result is touch point */
- fprintf( stderr, "\n Graph coordinates of the touch: %d %d %d \n", x, y, button );
- if ( x > xc && y > yc )
- {
- fprintf( stderr, "\n Last touch was in the -- quit -- rectangle \n\n" );
- return;
- }
- }
-}
-
-int main( int argc, char * argv[] )
-{
- int numprocs, myid;
- MPE_XGraph graph;
- int nc, ic;
- MPE_Color colors[500];
- /* subscribe to MPI virtual machine */
- MPI_Init(&argc,&argv);
- MPI_Comm_size(MPI_COMM_WORLD,&numprocs);
- MPI_Comm_rank(MPI_COMM_WORLD,&myid);
- /* start MPE graphics */
- MPE_Open_graphics( &graph, MPI_COMM_WORLD, 0, -1, -1, WINDOW_SIZE_X,
- WINDOW_SIZE_Y, 0 );
- /* -- write -- on graph */
- if ( myid == 0 )
- MPE_Draw_string( graph, 0.3*WINDOW_SIZE_X, 0.1*WINDOW_SIZE_Y,
- MPE_BLUE, "MPE Simple Graphics Demo" );
- /* draw a shape from a function */
- draw_something( graph, myid );
- /* default color palette */
- MPE_Num_colors ( graph, &nc );
- fprintf( stderr, "\n Process: %d -- Numbers of colors: %d \n", myid, nc );
- /* make a new color palette */
- nc = 128;
- MPE_Make_color_array( graph, nc, colors );
- fprintf( stderr, " Process: %d -- Made %d colors \n", myid, nc );
- /* draw shapes using different colors */
- draw_various_shapes( graph, myid, numprocs, colors, nc );
- /* display color palette */
- if ( myid == 0 )
- try_colors ( graph, myid, colors, nc );
- /* interaction with graph */
- if ( myid == 0 )
- quit_by_touch( graph );
- /* synchronize processes */
- MPI_Barrier( MPI_COMM_WORLD );
- /* end graphics */
- MPE_Close_graphics( &graph );
- /* end MPI */
- MPI_Finalize();
-}
-
-
-
-
-
-
-
-
-
-
-
-
projects / parallel_computing.git / blobdiff