int dot(int x, int y)
{
double vx[5], vy[5];
vx[0] = x;
vy[0] = y - dotsize;
vx[1] = x - dotsize;
vy[1] = y;
vx[2] = x;
vy[2] = y + dotsize;
vx[3] = x + dotsize;
vy[3] = y;
vx[4] = x;
vy[4] = y - dotsize;
R_polygon_abs(vx, vy, 5);
/*
int i;
for (i = 0; i < dotsize; i++)
{
R_move_abs (x-i, y+i-dotsize);
R_cont_rel (i+i,0);
R_move_abs (x-i, y+dotsize-i);
R_cont_rel (i+i,0);
}
R_move_abs (x-dotsize, y);
R_cont_rel (dotsize+dotsize, 0);
*/
return 0;
}
int do_poly(char *buff, FILE * infile)
{
int num;
char origcmd[64];
float xper, yper;
char *fgets();
int to_return;
sscanf(buff, "%s", origcmd);
num = 0;
for (;;) {
if ((to_return = G_getl2(buff, 128, infile)) != 1)
break;
if (2 != sscanf(buff, "%f %f", &xper, &yper)) {
if ('#' == buff[0]) {
G_debug(3, " skipping comment line [%s]", buff);
continue;
}
G_debug(3, "coordinate pair not found. ending polygon. [%s]",
buff);
break;
}
if (!mapunits) {
if (xper < 0. || yper < 0. || xper > 100. || yper > 100.)
break;
}
check_alloc(num + 1);
if (mapunits) {
xarray[num] = (int)(D_u_to_d_col(xper) + 0.5);
yarray[num] = (int)(D_u_to_d_row(yper) + 0.5);
}
else {
xarray[num] = l + (int)(xper * xincr);
yarray[num] = b - (int)(yper * yincr);
}
num++;
}
if (num) {
/* this check is here so you can use the "polyline" command
to make an unfilled polygon */
if (!strcmp(origcmd, "polygon"))
R_polygon_abs(xarray, yarray, num);
else
R_polyline_abs(xarray, yarray, num);
}
return (to_return);
}
int draw_slice(struct Colors *colors, int fill_flag, DCELL fill_color1, DCELL fill_color2, int txt_color, double cx, double cy, double r, /* in normalized coords. */
double a1, double a2 /* in degrees */
)
{
int tt, tb, tr, tl;
int height, width;
int yoffset, xoffset;
int x[1000], y[1000];
int lx, ly;
int i = 1;
char txt[512];
double arc, arc_incr = 0.01;
DCELL fill_color;
D_get_screen_window(&tt, &tb, &tl, &tr);
height = tb - tt;
width = tr - tl;
yoffset = tb;
xoffset = tl;
while (a2 / arc_incr > 998)
arc_incr *= 2;
x[0] = (int)((double)xoffset + cx * (double)width);
y[0] = (int)((double)yoffset - cy * (double)height);
arc = a1;
if (fill_flag && fill_color1 != fill_color2) {
i = 1;
while (arc <= (a1 + a2)) {
fill_color = fill_color1 + (arc - a1) *
(fill_color2 - fill_color1) / a2;
x[i] = x[0] + r * (width) * cos(arc / 57.296);
y[i] = y[0] - r * (height) * sin(arc / 57.296);
if (i == 2) {
D_d_color(fill_color, colors);
R_polygon_abs(x + i - 2, y + i - 2, 3);
x[i - 1] = x[i];
y[i - 1] = y[i];
}
else
i++;
arc = arc + arc_incr;
}
}
else {
i = 1;
while (arc <= (a1 + a2)) {
x[i] = x[0] + r * (width) * cos(arc / 57.296);
y[i] = y[0] - r * (height) * sin(arc / 57.296);
i++;
arc = arc + arc_incr;
}
if (!fill_flag) {
R_standard_color(txt_color);
R_polyline_abs(x, y, i);
}
else {
D_d_color(fill_color1, colors);
R_polygon_abs(x, y, i);
}
}
if (a2 > 15.0) {
/* draw a label */
arc = a1 + a2 / 2;
sprintf(txt, "%2.0f%s", (double)(a2 / (double)360.0) * (double)100.0,
percent);
R_get_text_box(txt, &tt, &tb, &tl, &tr);
lx = x[0] + (r + 0.03) * (width) * cos(arc / 57.296) - (tr - tl) / 2;
ly = y[0] - (r + 0.03) * (height) * sin(arc / 57.296) + (tb - tt) / 2;
R_move_abs(lx, ly);
R_standard_color(txt_color);
R_text(txt);
}
return 0;
}
