int renderEllipseSymbolGD(imageObj *img, double x, double y, symbolObj *symbol, symbolStyleObj *style)
{
/* check for trivial cases - 1x1 and 2x2, GD does not do these well */
gdImagePtr ip;
int w,h,fc,oc;
if(!(ip = MS_IMAGE_GET_GDIMAGEPTR(img))) return MS_FAILURE;
SETPEN(ip, style->color);
SETPEN(ip, style->outlinecolor);
fc = style->color ? style->color->pen : -1;
oc = style->outlinecolor ? style->outlinecolor->pen : -1;
if(oc==-1 && fc ==-1) {
return MS_SUCCESS;
}
w = symbol->sizex * style->scale;
h = symbol->sizey * style->scale;
if(w==1 && h==1) {
if(fc >= 0)
gdImageSetPixel(ip, x, y, fc);
else
gdImageSetPixel(ip, x, y, oc);
return MS_SUCCESS;
}
if(w==2 && h==2) {
if(oc >= 0) {
gdImageSetPixel(ip, x, y, oc);
gdImageSetPixel(ip, x, y+1, oc);
gdImageSetPixel(ip, x+1, y, oc);
gdImageSetPixel(ip, x+1, y+1, oc);
} else {
gdImageSetPixel(ip, x, y, fc);
gdImageSetPixel(ip, x, y+1, fc);
gdImageSetPixel(ip, x+1, y, fc);
gdImageSetPixel(ip, x+1, y+1, fc);
}
return MS_SUCCESS;
}
if(symbol->filled) {
if(fc >= 0) gdImageFilledEllipse(ip, x, y, w, h, fc);
if(oc >= 0) gdImageArc(ip, x, y, w, h, 0, 360, oc);
} else {
if(fc < 0) fc = oc; /* try the outline color */
gdImageArc(ip, x, y, w, h, 0, 360, fc);
}
return MS_SUCCESS;
}
void circle(const Point& center, int radius, const Color& color, bool filled)
{
if (filled)
gdImageFilledEllipse(im_, SCALEX(center.x), SCALEY(center.y), SCALER(radius*2), SCALER(radius*2), color2gd(color));
else
gdImageArc(im_, SCALEX(center.x), SCALEY(center.y), SCALER(radius*2), SCALER(radius*2), 0, 360, color2gd(color));
}
int main()
{
gdImagePtr im;
int black;
FILE *outFile;
gdIOCtx *out;
off_t length;
/* create the test image */
im = gdImageCreate(11, 11);
gdImageColorAllocate(im, 255, 255, 255);
black = gdImageColorAllocate(im, 0, 0, 0);
gdImageArc(im, 5, 5, 10, 10, 0, 360, black);
/* write the file to disk, note the file length and delete the file */
outFile = gdTestTempFp();
out = gdNewFileCtx(outFile);
gdTestAssert(out != NULL);
gdImageXbmCtx(im, "github_bug_170.xbm", 1, out);
out->gd_free(out);
length = ftello(outFile);
fclose(outFile);
gdImageDestroy(im);
gdTestAssertMsg(length == 250, "expected to write 250 bytes; %jd bytes written", (intmax_t) length);
return gdNumFailures();
}
void circle(const Point& center, int radius, const Color& color, bool filled)
{
if (filled)
gdImageFilledEllipse(im_, center.x, center.y, radius*2, radius*2, color2gd(color));
else
gdImageArc(im_, center.x, center.y, radius*2, radius*2, 0, 360, color2gd(color));
}
static void
gd_ellipse(point p, int rx, int ry, int filled)
{
pointf mp;
int i;
int style[40]; /* need 2* size for arcs, I don't know why */
int pen, width;
gdImagePtr brush = NULL;
if (cstk[SP].pen != P_NONE) {
if (cstk[SP].pen == P_DASHED) {
for (i = 0; i < 20; i++)
style[i] = cstk[SP].pencolor;
for (; i < 40; i++)
style[i] = gdTransparent;
gdImageSetStyle(im, style, 40);
pen = gdStyled;
} else if (cstk[SP].pen == P_DOTTED) {
for (i = 0; i < 2; i++)
style[i] = cstk[SP].pencolor;
for (; i < 24; i++)
style[i] = gdTransparent;
gdImageSetStyle(im, style, 24);
pen = gdStyled;
} else {
pen = cstk[SP].pencolor;
}
#if 1
/* use brush instead of Thickness to improve outline appearance */
gdImageSetThickness(im, WIDTH_NORMAL);
if (cstk[SP].penwidth != WIDTH_NORMAL) {
width = cstk[SP].penwidth;
brush = gdImageCreate(width,width);
gdImagePaletteCopy(brush, im);
gdImageFilledRectangle(brush,
0,0,width-1, width-1, cstk[SP].pencolor);
gdImageSetBrush(im, brush);
if (pen == gdStyled) pen = gdStyledBrushed;
else pen = gdBrushed;
}
#else
width = cstk[SP].penwidth;
gdImageSetThickness(im, width);
#endif
if (Rot) {int t; t = rx; rx = ry; ry = t;}
mp.x = p.x; mp.y = p.y;
mp = gdpt(mp);
if (filled) {
gdImageFilledEllipse(im, ROUND(mp.x), ROUND(mp.y),
ROUND(Zoom*(rx + rx)), ROUND(Zoom*(ry + ry)),
cstk[SP].fillcolor);
}
gdImageArc(im, ROUND(mp.x), ROUND(mp.y),
ROUND(Zoom*(rx + rx)), ROUND(Zoom*(ry + ry)), 0, 360, pen);
if (brush)
gdImageDestroy(brush);
}
}
void gdoArc(struct ADrawTag *ctx,
unsigned int cx,
unsigned int cy,
unsigned int w,
unsigned int h,
unsigned int s,
unsigned int e)
{
gdImageArc(getGdoImg(ctx), cx, cy, w, h, s, e, getGdoPen(ctx));
}
void gdoDottedArc(struct ADrawTag *ctx,
unsigned int cx,
unsigned int cy,
unsigned int w,
unsigned int h,
unsigned int s,
unsigned int e)
{
setStyle(ctx);
gdImageArc(getGdoImg(ctx), cx, cy, w, h, s, e, gdStyled);
}
void doCircle(FILE *stream) {
float cx, cy, r;
int c;
cx = getFloat(stream);
cy = getFloat(stream);
r = getFloat(stream);
c = getColor(getNumber(stream));
gdImageArc(image, viewx(cx), viewy(cy),
scalex(r)*2, scaley(r)*2, 0, 360, c);
}
int
main (int argc, char *argv[])
{
gdImagePtr im = gdImageCreate (WIDTH, HEIGHT);
int white = gdImageColorResolve (im, 0xFF, 0xFF, 0xFF), black = gdImageColorResolve (im, 0, 0, 0),
red = gdImageColorResolve (im, 0xFF, 0xA0, 0xA0);
FILE *out;
/* filled arc - circle */
gdImageFilledArc (im, WIDTH / 5, HEIGHT / 4, 200, 200, 45, 90, red, gdPie);
gdImageArc (im, WIDTH / 5, HEIGHT / 4, 200, 200, 45, 90, black);
/* filled arc - ellipse */
gdImageFilledArc (im, WIDTH / 2, HEIGHT / 4, 200, 150, 45, 90, red, gdPie);
gdImageArc (im, WIDTH / 2, HEIGHT / 4, 200, 150, 45, 90, black);
/* reference lines */
gdImageLine (im, 0, HEIGHT / 4, WIDTH, HEIGHT / 4, black);
gdImageLine (im, WIDTH / 5, 0, WIDTH / 5, HEIGHT, black);
gdImageLine (im, WIDTH / 2, 0, WIDTH / 2, HEIGHT, black);
gdImageLine (im, WIDTH / 2, HEIGHT / 4, WIDTH / 2 + 300, HEIGHT / 4 + 300, black);
gdImageLine (im, WIDTH / 5, HEIGHT / 4, WIDTH / 5 + 300, HEIGHT / 4 + 300, black);
/* TBB: Write img to test/arctest.png */
out = fopen ("test/arctest.png", "wb");
if (!out)
{
fprintf (stderr, "Can't create test/arctest.png\n");
exit (1);
}
gdImagePng (im, out);
fclose (out);
fprintf (stderr, "Test image written to test/arctest.png\n");
/* Destroy it */
gdImageDestroy (im);
return 0;
}
FILE *piechart_init(char *filename) {
FILE *pieoutf;
int xsize, ysize, b1, b2;
if ((pieoutf = FOPENWB(filename)) == NULL) {
warn('F', TRUE, "Failed to open pie chart file %s for writing: "
"ignoring it", filename);
return(pieoutf);
}
debug('F', "Opening %s as pie chart file", filename);
#ifdef RISCOS
_swix(OS_File, _INR(0,2), 18, filename, 0xb60); /* set PNG filetype */
#endif
xsize = normalchart?XSIZE:SHORTXSIZE;
ysize = normalchart?YSIZE:SHORTYSIZE;
im = gdImageCreate(xsize, ysize);
/* The first colour allocated in a new image is the background colour. */
white = gdImageColorAllocate(im, 255, 255, 255); /* white */
black = gdImageColorAllocate(im, 0, 0, 0); /* black */
grey = gdImageColorAllocate(im, 128, 128, 128); /* grey */
lightgrey = gdImageColorAllocate(im, 217, 217, 217); /* light grey */
col = 0;
/* Wedge colours. If these change, so must images/sq*. */
colours[col++] = gdImageColorAllocate(im, 255, 0, 0); /* red */
colours[col++] = gdImageColorAllocate(im, 0, 0, 255); /* mid blue */
colours[col++] = gdImageColorAllocate(im, 0, 128, 0); /* green */
colours[col++] = gdImageColorAllocate(im, 255, 128, 0); /* orange */
colours[col++] = gdImageColorAllocate(im, 0, 0, 128); /* navy blue */
colours[col++] = gdImageColorAllocate(im, 0, 255, 0); /* pale green */
colours[col++] = gdImageColorAllocate(im, 255, 128, 128); /* pink */
colours[col++] = gdImageColorAllocate(im, 0, 255, 255); /* cyan */
colours[col++] = gdImageColorAllocate(im, 128, 0, 128); /* purple */
colours[col++] = gdImageColorAllocate(im, 255, 255, 0); /* yellow */
col = 0;
totangle = 0.75; /* starting at the top */
boxesy = BOXESTOP;
b1 = xsize - 1 - BORDER;
b2 = ysize - 1 - BORDER;
/* Plot outline of pie, and border of image */
gdImageArc(im, XCENTRE, YCENTRE, DIAMETER + 2, DIAMETER + 2, 0, 360, black);
gdImageRectangle(im, BORDER, BORDER, b1, b2, black);
gdImageLine(im, xsize - 1, 0, b1, BORDER, black);
gdImageLine(im, 0, ysize - 1, BORDER, b2, black);
gdImageFill(im, 0, 0, lightgrey);
gdImageFill(im, xsize - 1, ysize - 1, grey);
gdImageLine(im, 0, 0, BORDER, BORDER, black);
gdImageLine(im, xsize - 1, ysize - 1, b1, b2, black);
return(pieoutf);
}
result_t Image::arc(int32_t x, int32_t y, int32_t width, int32_t height,
int32_t start, int32_t end, int32_t color)
{
if (width <= 0 || height <= 0)
return CHECK_ERROR(CALL_E_INVALIDARG);
if (!m_image)
return CHECK_ERROR(CALL_E_INVALID_CALL);
if (start < 0 || start > 360 || end < 0 || end > 360)
return CHECK_ERROR(CALL_E_INVALIDARG);
gdImageArc(m_image, x, y, width, height, start, end, color);
return 0;
}
void doArc(FILE *stream) {
float cx, cy, w, h;
int s, e, c;
cx = getFloat(stream); // center x
cy = getFloat(stream); // center y
w = getFloat(stream); // width
h = getFloat(stream); // height
s = getNumber(stream); // start angle
e = getNumber(stream); // end angle
c = getColor(getNumber(stream)); // color
gdImageArc(image, viewx(cx), viewy(cy),
scalex(w), scaley(h), s, e, c);
}
int main()
{
gdImagePtr im;
int error = 0;
char path[1024];
im = gdImageCreateTrueColor(300, 300);
gdImageFilledRectangle(im, 0,0, 299,299, 0xFFFFFF);
gdImageSetAntiAliased(im, 0x000000);
gdImageArc(im, 300, 300, 600,600, 0, 360, gdAntiAliased);
sprintf(path, "%s/gdimagearc/bug00079_exp.png", GDTEST_TOP_DIR);
if (!gdAssertImageEqualsToFile(path, im)) {
printf("%s failed\n", path);
error = 1;
}
gdImageDestroy(im);
return error;
}
void CarGPS::draw_readout(struct gpf_data *data)
{
logger->log(DEBUG, "CarGPS::draw_readout", "start");
char str[128];
char *f = conf->get_value("font");
int white = gdTrueColor(250,250,250);
int gray = gdTrueColor(200, 250, 200);
int black = gdTrueColor(0,0,0);
int cx, cy;
// time
int time = (int)data->time;
int hour = time/10000;
int minute = time/100 - (hour*100);
int second = time - (hour*10000) - (minute*100);
sprintf(str, "Time: %.2d:%.2d:%.2d UTC", hour, minute, second);
gdImageFilledRectangle(img, 0, height - 80, width, height, black);
draw_string(0, height-40, width, 40, white, f, 18, str);
// position
sprintf(str, "Position: %.2f %c, %.2f %c", data->latitude/100.0,
data->latitude_ns, data->longitude/100.0, data->longitude_ew);
gdImageFilledRectangle(img, 0, 0, width, 40, black);
draw_string(0, 0, width, 40, white, f, 18, str);
// altitude
sprintf(str, "Altitude: %d m", data->altitude);
//draw_string(0, 150, width, 30, white, f, 18, str);
// altitude
sprintf(str, "Satellites in view: %d", data->num_satellites);
//draw_string(0, 200, width, 30, white, f, 18, str);
// draw the new satellite map only if new data is available
if (data->new_info)
{
gdImageFilledRectangle(img, 0, 40, width, height-80, black);
//initialize useful variables
cx = width / 2;
cy = height / 2;
// draw the concentric circles
gdImageArc(img, cx, cy, 100, 100, 0, 360, gray);
gdImageArc(img, cx, cy, 200, 200, 0, 360, gray);
gdImageArc(img, cx, cy, 300, 300, 0, 360, gray);
// crosshair
gdImageLine(img, cx-150, cy, cx+150, cy, gray);
gdImageLine(img, cx, cy-150, cx, cy+150, gray);
// label the directions
draw_string(cx-20, cy-185, 40, 40, gray, f, 14, "N");
draw_string(cx+150, cy-20, 40, 40, gray, f, 14, "E");
draw_string(cx-20, cy+150, 40, 40, gray, f, 14, "S");
draw_string(cx-185, cy-20, 40, 40, gray, f, 14, "W");
// draw the satellites
int x, y;
float r, theta;
for (int i = 0; i < data->num_satellites; i++)
{
r = 150.0 - (float)data->satellite[i].elevation * 150.0 / 90.0;
theta = (float)(data->satellite[i].azimuth-90) * 2.0 * 3.14159 / 360.0;
x = (int)(r * cos(theta)) + cx;
y = (int)(r * sin(theta)) + cy;
sprintf(str, "%d", data->satellite[i].id);
gdImageFilledArc(img, x, y, 5, 5, 0, 360, white, gdArc);
draw_string(x, y, 18, 18, gray, f, 10, str);
}
}
update();
logger->log(DEBUG, "CarGPS::draw_readout", "end");
}
void Gd::arc(int cx, int cy, int w, int h, int s, int e, int color)
{
gdImageArc(_imagePtr, cx, cy, w, h, s, e, color);
}
/* ======================================================= *\
* PIE
*
* Notes:
* always drawn from 12:00 position clockwise
* 'missing' slices don't get labels
* sum(val[0], ... val[num_points-1]) is assumed to be 100%
\* ======================================================= */
void
GDC_out_pie( short IMGWIDTH,
short IMGHEIGHT,
FILE *img_fptr, /* open file pointer */
GDCPIE_TYPE type,
int num_points,
char *lbl[], /* data labels */
float val[] ) /* data */
{
int i;
gdImagePtr im;
int BGColor,
LineColor,
PlotColor,
EdgeColor,
EdgeColorShd;
CREATE_ARRAY1( SliceColor, int, num_points ); /* int SliceColor[num_points] */
CREATE_ARRAY1( SliceColorShd, int, num_points ); /* int SliceColorShd[num_points] */
float rad = 0.0; /* radius */
float ellipsex = 1.0;
float ellipsey = 1.0 - (float)GDCPIE_perspective/100.0;
float tot_val = 0.0;
float pscl;
int cx, /* affects PX() */
cy; /* affects PY() */
/* ~ 1% for a size of 100 pixs */
/* label sizes will more dictate this */
float min_grphable = ( GDCPIE_other_threshold < 0?
100.0/(float)MIN(IMGWIDTH,IMGHEIGHT):
(float)GDCPIE_other_threshold )/100.0;
short num_slices1 = 0,
num_slices2 = 0;
char any_too_small = FALSE;
CREATE_ARRAY1( others, char, num_points ); /* char others[num_points] */
CREATE_ARRAY2( slice_angle, float, 3, num_points ); /* float slice_angle[3][num_points] */
/* must be used with others[] */
char threeD = ( type == GDC_3DPIE );
int xdepth_3D = 0, /* affects PX() */
ydepth_3D = 0; /* affects PY() */
int do3Dx = 0, /* reserved for macro use */
do3Dy = 0;
CREATE_ARRAY2( pct_lbl, char, num_points, 16 ); /* sizeof or strlen (GDCPIE_percent_fmt)? */
CREATE_ARRAY1( pct_ftsz, struct fnt_sz_t, num_points ); /* struct fnt_sz_t lbl_ftsz[num_points] */
CREATE_ARRAY1( lbl_ftsz, struct fnt_sz_t, num_points ); /* struct fnt_sz_t lbl_ftsz[num_points] */
#ifdef HAVE_LIBFREETYPE
char *gdcpie_title_font = GDCPIE_title_font;
char *gdcpie_label_font = GDCPIE_label_font;
double gdcpie_title_ptsize = GDCPIE_title_ptsize;
double gdcpie_label_ptsize = GDCPIE_label_ptsize;
#else
char *gdcpie_title_font = NULL;
char *gdcpie_label_font = NULL;
double gdcpie_title_ptsize = 0.0;
double gdcpie_label_ptsize = 0.0;
#endif
/* GDCPIE_3d_angle = MOD_360(90-GDCPIE_3d_angle+360); */
pie_3D_rad = TO_RAD( GDCPIE_3d_angle );
xdepth_3D = threeD? (int)( cos((double)MOD_2PI(M_PI_2-pie_3D_rad+2.0*M_PI)) * GDCPIE_3d_depth ): 0;
ydepth_3D = threeD? (int)( sin((double)MOD_2PI(M_PI_2-pie_3D_rad+2.0*M_PI)) * GDCPIE_3d_depth ): 0;
/* xdepth_3D = threeD? (int)( cos(pie_3D_rad) * GDCPIE_3d_depth ): 0; */
/* ydepth_3D = threeD? (int)( sin(pie_3D_rad) * GDCPIE_3d_depth ): 0; */
load_font_conversions();
/* ----- get total value ----- */
for( i=0; i<num_points; ++i )
tot_val += val[i];
/* ----- pie sizing ----- */
/* ----- make width room for labels, depth, etc.: ----- */
/* ----- determine pie's radius ----- */
{
int title_hgt = GDCPIE_title? 1 /* title? horizontal text line */
+ GDCfnt_sz( GDCPIE_title,
GDCPIE_title_size,
gdcpie_title_font, gdcpie_title_ptsize, 0.0, NULL ).h
+ 2:
0;
float last = 0.0;
float label_explode_limit = 0.0;
int cheight,
cwidth;
/* maximum: no labels, explosions */
/* gotta start somewhere */
rad = (float)MIN( (IMGWIDTH/2)/ellipsex-(1+ABS(xdepth_3D)), (IMGHEIGHT/2)/ellipsey-(1+ABS(ydepth_3D))-title_hgt );
/* ok fix center, i.e., no floating re labels, explosion, etc. */
cx = IMGWIDTH/2 /* - xdepth_3D */ ;
cy = (IMGHEIGHT-title_hgt)/2 + title_hgt /* + ydepth_3D */ ;
cheight = (IMGHEIGHT- title_hgt)/2 /* - ydepth_3D */ ;
cwidth = cx;
/* walk around pie. determine spacing to edge */
for( i=0; i<num_points; ++i )
{
float this_pct = val[i]/tot_val; /* should never be > 100% */
float this = this_pct*(2.0*M_PI); /* pie-portion */
if( (this_pct > min_grphable) || /* too small */
(!GDCPIE_missing || !GDCPIE_missing[i]) ) /* still want angles */
{
int this_explode = GDCPIE_explode? GDCPIE_explode[i]: 0;
double this_sin;
double this_cos;
slice_angle[0][i] = this/2.0+last; /* mid-point on full pie */
slice_angle[1][i] = last; /* 1st on full pie */
slice_angle[2][i] = this+last; /* 2nd on full pie */
this_sin = ellipsex*sin( (double)slice_angle[0][i] );
this_cos = ellipsey*cos( (double)slice_angle[0][i] );
if( !GDCPIE_missing || !(GDCPIE_missing[i]) )
{
short lbl_wdth = 0,
lbl_hgt = 0;
float this_y_explode_limit,
this_x_explode_limit;
/* start slice label height, width */
/* accounting for PCT placement, font */
pct_ftsz[i].h = 0;
pct_ftsz[i].w = 0;
if( GDCPIE_percent_fmt &&
GDCPIE_percent_labels != GDCPIE_PCT_NONE )
{
sprintf( pct_lbl[i], GDCPIE_percent_fmt, this_pct * 100.0 );
pct_ftsz[i] = GDCfnt_sz( pct_lbl[i],
GDCPIE_label_size,
gdcpie_label_font, gdcpie_label_ptsize, 0.0, NULL );
lbl_wdth = pct_ftsz[i].w;
lbl_hgt = pct_ftsz[i].h;
}
if( lbl && lbl[i] )
{
lbl_ftsz[i] = GDCfnt_sz( lbl[i],
GDCPIE_label_size,
gdcpie_label_font, gdcpie_label_ptsize, 0.0, NULL );
if( GDCPIE_percent_labels == GDCPIE_PCT_ABOVE ||
GDCPIE_percent_labels == GDCPIE_PCT_BELOW )
{
lbl_wdth = MAX( pct_ftsz[i].w, lbl_ftsz[i].w );
lbl_hgt = pct_ftsz[i].h + lbl_ftsz[i].h + 1;
}
else
if( GDCPIE_percent_labels == GDCPIE_PCT_RIGHT ||
GDCPIE_percent_labels == GDCPIE_PCT_LEFT )
{
lbl_wdth = pct_ftsz[i].w + lbl_ftsz[i].w + 1;
lbl_hgt = MAX( pct_ftsz[i].h, lbl_ftsz[i].h );
}
else /* GDCPIE_PCT_NONE */
{
lbl_wdth = lbl_ftsz[i].w;
lbl_hgt = lbl_ftsz[i].h;
}
}
else
lbl_wdth = lbl_hgt = 0;
/* end label height, width */
/* diamiter limited by this point's: explosion, label */
/* (radius to box @ slice_angle) - (explode) - (projected label size) */
/* radius constraint due to labels */
this_y_explode_limit = (float)this_cos==0.0? FLT_MAX:
( (float)( (double)cheight/ABS(this_cos) ) -
(float)( this_explode + (lbl&&lbl[i]? GDCPIE_label_dist: 0) ) -
(float)( lbl_hgt/2 ) / (float)ABS(this_cos) );
this_x_explode_limit = (float)this_sin==0.0? FLT_MAX:
( (float)( (double)cwidth/ABS(this_sin) ) -
(float)( this_explode + (lbl&&lbl[i]? GDCPIE_label_dist: 0) ) -
(float)( lbl_wdth ) / (float)ABS(this_sin) );
rad = MIN( rad, this_y_explode_limit );
rad = MIN( rad, this_x_explode_limit );
/* ok at this radius (which is most likely larger than final) */
/* adjust for inter-label spacing */
/* if( lbl[i] && *lbl[i] ) */
/* { */
/* char which_edge = slice_angle[0][i] > M_PI? +1: -1; // which semi */
/* last_label_yedge = cheight - (int)( (rad + // top or bottom of label */
/* (float)(this_explode + */
/* (float)GDCPIE_label_dist)) * (float)this_cos ) + */
/* ( (GDC_fontc[GDCPIE_label_size].h+1)/2 + */
/* GDC_label_spacing )*which_edge; */
/* } */
/* radius constriant due to exploded depth */
/* at each edge of the slice, and the middle */
/* this is really stupid */
/* this section uses a different algorithm then above, but does the same thing */
/* could be combined, but each is ugly enough! */
/* PROTECT /0 */
if( threeD )
{
short j;
int this_y_explode_pos;
int this_x_explode_pos;
/* first N E S W (actually no need for N) */
if( (slice_angle[1][i] < M_PI_2 && M_PI_2 < slice_angle[2][i]) && /* E */
(this_x_explode_pos=OX(i,M_PI_2,1)) > cx+cwidth )
rad -= (float)ABS( (double)(1+this_x_explode_pos-(cx+cwidth))/sin(M_PI_2) );
if( (slice_angle[1][i] < 3.0*M_PI_2 && 3.0*M_PI_2 < slice_angle[2][i]) && /* W */
(this_x_explode_pos=OX(i,3.0*M_PI_2,1)) < cx-cwidth )
rad -= (float)ABS( (double)(this_x_explode_pos-(cx+cwidth))/sin(3.0*M_PI_2) );
if( (slice_angle[1][i] < M_PI && M_PI < slice_angle[2][i]) && /* S */
(this_y_explode_pos=OY(i,M_PI,1)) > cy+cheight )
rad -= (float)ABS( (double)(1+this_y_explode_pos-(cy+cheight))/cos(M_PI) );
for( j=0; j<3; ++j )
{
this_y_explode_pos = IY(i,j,1);
if( this_y_explode_pos < cy-cheight )
rad -= (float)ABS( (double)((cy-cheight)-this_y_explode_pos)/cos((double)slice_angle[j][i]) );
if( this_y_explode_pos > cy+cheight )
rad -= (float)ABS( (double)(1+this_y_explode_pos-(cy+cheight))/cos((double)slice_angle[j][i]) );
this_x_explode_pos = IX(i,j,1);
if( this_x_explode_pos < cx-cwidth )
rad -= (float)ABS( (double)((cx-cwidth)-this_x_explode_pos)/sin((double)slice_angle[j][i]) );
if( this_x_explode_pos > cx+cwidth )
rad -= (float)ABS( (double)(1+this_x_explode_pos-(cx+cwidth))/sin((double)slice_angle[j][i]) );
}
}
}
others[i] = FALSE;
}
else
{
others[i] = TRUE;
slice_angle[0][i] = -FLT_MAX;
}
last += this;
}
}
/* ----- go ahead and start the image ----- */
im = gdImageCreate( IMGWIDTH, IMGHEIGHT );
/* --- allocate the requested colors --- */
BGColor = clrallocate( im, GDCPIE_BGColor );
LineColor = clrallocate( im, GDCPIE_LineColor );
PlotColor = clrallocate( im, GDCPIE_PlotColor );
if( GDCPIE_EdgeColor != GDC_NOCOLOR )
{
EdgeColor = clrallocate( im, GDCPIE_EdgeColor );
if( threeD )
EdgeColorShd = clrshdallocate( im, GDCPIE_EdgeColor );
}
/* --- set color for each slice --- */
for( i=0; i<num_points; ++i )
if( GDCPIE_Color )
{
unsigned long slc_clr = GDCPIE_Color[i];
SliceColor[i] = clrallocate( im, slc_clr );
if( threeD )
SliceColorShd[i] = clrshdallocate( im, slc_clr );
}
else
{
SliceColor[i] = PlotColor;
if( threeD )
SliceColorShd[i] = clrshdallocate( im, GDCPIE_PlotColor );
}
pscl = (2.0*M_PI)/tot_val;
/* ----- calc: smallest a slice can be ----- */
/* 1/2 circum / num slices per side. */
/* determined by number of labels that'll fit (height) */
/* scale to user values */
/* ( M_PI / (IMGHEIGHT / (SFONTHGT+1)) ) */
/* min_grphable = tot_val / */
/* ( 2.0 * (float)IMGHEIGHT / (float)(SFONTHGT+1+TFONTHGT+2) ); */
if( threeD )
{
/* draw background shaded pie */
{
float rad1 = rad * 3.0/4.0;
for( i=0; i<num_points; ++i )
if( !(others[i]) &&
(!GDCPIE_missing || !GDCPIE_missing[i]) )
{
int edge_color = GDCPIE_EdgeColor == GDC_NOCOLOR? SliceColorShd[i]:
EdgeColorShd;
gdImageLine( im, CX(i,1), CY(i,1), IX(i,1,1), IY(i,1,1), edge_color );
gdImageLine( im, CX(i,1), CY(i,1), IX(i,2,1), IY(i,2,1), edge_color );
gdImageArc( im, CX(i,1), CY(i,1),
(int)(rad*ellipsex*2.0), (int)(rad*ellipsey*2.0),
TO_INT_DEG_FLOOR(slice_angle[1][i])+270,
TO_INT_DEG_CEIL(slice_angle[2][i])+270,
edge_color );
/* gdImageFilledArc( im, CX(i,1), CY(i,1), */
/* rad*ellipsex*2, rad*ellipsey*2, */
/* TO_INT_DEG_FLOOR(slice_angle[1][i])+270, */
/* TO_INT_DEG_CEIL(slice_angle[2][i])+270, */
/* SliceColorShd[i], */
/* gdPie ); */
/* attempt to fill, if slice is wide enough */
if( (ABS(IX(i,1,1)-IX(i,2,1)) + ABS(IY(i,1,1)-IY(i,2,1))) > 2 )
{
float rad = rad1; /* local override */
gdImageFillToBorder( im, IX(i,0,1), IY(i,0,1), edge_color, SliceColorShd[i] );
}
}
}
/* fill in connection to foreground pie */
/* this is where we earn our keep */
{
int t,
num_slice_angles = 0;
CREATE_ARRAY1( tmp_slice, struct tmp_slice_t, 4*num_points+4 ); /* should only need 2*num_points+2 */
for( i=0; i<num_points; ++i )
if( !GDCPIE_missing || !GDCPIE_missing[i] )
{
if( RAD_DIST1(slice_angle[1][i]) < RAD_DIST2(slice_angle[0][i]) )
tmp_slice[num_slice_angles].hidden = FALSE;
else
tmp_slice[num_slice_angles].hidden = TRUE;
tmp_slice[num_slice_angles].i = i;
tmp_slice[num_slice_angles].slice = slice_angle[0][i];
tmp_slice[num_slice_angles++].angle = slice_angle[1][i];
if( RAD_DIST1(slice_angle[2][i]) < RAD_DIST2(slice_angle[0][i]) )
tmp_slice[num_slice_angles].hidden = FALSE;
else
tmp_slice[num_slice_angles].hidden = TRUE;
tmp_slice[num_slice_angles].i = i;
tmp_slice[num_slice_angles].slice = slice_angle[0][i];
tmp_slice[num_slice_angles++].angle = slice_angle[2][i];
/* identify which 2 slices (i) have a tangent parallel to depth angle */
if( slice_angle[1][i]<MOD_2PI(pie_3D_rad+M_PI_2) && slice_angle[2][i]>MOD_2PI(pie_3D_rad+M_PI_2) )
{
tmp_slice[num_slice_angles].i = i;
tmp_slice[num_slice_angles].hidden = FALSE;
tmp_slice[num_slice_angles].slice = slice_angle[0][i];
tmp_slice[num_slice_angles++].angle = MOD_2PI( pie_3D_rad+M_PI_2 );
}
if( slice_angle[1][i]<MOD_2PI(pie_3D_rad+3.0*M_PI_2) && slice_angle[2][i]>MOD_2PI(pie_3D_rad+3.0*M_PI_2) )
{
tmp_slice[num_slice_angles].i = i;
tmp_slice[num_slice_angles].hidden = FALSE;
tmp_slice[num_slice_angles].slice = slice_angle[0][i];
tmp_slice[num_slice_angles++].angle = MOD_2PI( pie_3D_rad+3.0*M_PI_2 );
}
}
qsort( tmp_slice, num_slice_angles, sizeof(struct tmp_slice_t), ocmpr );
for( t=0; t<num_slice_angles; ++t )
{
gdPoint gdp[4];
i = tmp_slice[t].i;
gdp[0].x = CX(i,0); gdp[0].y = CY(i,0);
gdp[1].x = CX(i,1); gdp[1].y = CY(i,1);
gdp[2].x = OX(i,tmp_slice[t].angle,1); gdp[2].y = OY(i,tmp_slice[t].angle,1);
gdp[3].x = OX(i,tmp_slice[t].angle,0); gdp[3].y = OY(i,tmp_slice[t].angle,0);
if( !(tmp_slice[t].hidden) )
gdImageFilledPolygon( im, gdp, 4, SliceColorShd[i] );
else
{
rad -= 2.0; /* no peeking */
gdp[0].x = OX(i,slice_angle[0][i],0); gdp[0].y = OY(i,slice_angle[0][i],0);
gdp[1].x = OX(i,slice_angle[0][i],1); gdp[1].y = OY(i,slice_angle[0][i],1);
rad += 2.0;
gdp[2].x = OX(i,slice_angle[1][i],1); gdp[2].y = OY(i,slice_angle[1][i],1);
gdp[3].x = OX(i,slice_angle[1][i],0); gdp[3].y = OY(i,slice_angle[1][i],0);
gdImageFilledPolygon( im, gdp, 4, SliceColorShd[i] );
gdp[2].x = OX(i,slice_angle[2][i],1); gdp[2].y = OY(i,slice_angle[2][i],1);
gdp[3].x = OX(i,slice_angle[2][i],0); gdp[3].y = OY(i,slice_angle[2][i],0);
gdImageFilledPolygon( im, gdp, 4, SliceColorShd[i] );
}
if( GDCPIE_EdgeColor != GDC_NOCOLOR )
{
gdImageLine( im, CX(i,0), CY(i,0), CX(i,1), CY(i,1), EdgeColorShd );
gdImageLine( im, OX(i,tmp_slice[t].angle,0), OY(i,tmp_slice[t].angle,0),
OX(i,tmp_slice[t].angle,1), OY(i,tmp_slice[t].angle,1),
EdgeColorShd );
}
}
FREE_ARRAY1( tmp_slice );
}
}
/* ----- pie face ----- */
{
/* float last = 0.0; */
float rad1 = rad * 3.0/4.0;
for( i=0; i<num_points; ++i )
if( !others[i] &&
(!GDCPIE_missing || !GDCPIE_missing[i]) )
{
int edge_color = GDCPIE_EdgeColor == GDC_NOCOLOR? SliceColor[i]:
EdgeColorShd;
/* last += val[i]; */
/* EXPLODE_CX_CY( slice_angle[0][i], i ); */
gdImageLine( im, CX(i,0), CY(i,0), IX(i,1,0), IY(i,1,0), edge_color );
gdImageLine( im, CX(i,0), CY(i,0), IX(i,2,0), IY(i,2,0), edge_color );
gdImageArc( im, CX(i,0), CY(i,0),
(int)(rad*ellipsex*2.0), (int)(rad*ellipsey*2.0),
(TO_INT_DEG_FLOOR(slice_angle[1][i])+270)%360,
(TO_INT_DEG_CEIL(slice_angle[2][i])+270)%360,
edge_color );
/* antialiasing here */
/* likely only on the face? */
/* bugs in gd2.0.0 */
/* arc doesn't honor deg>360 */
/* arcs from gdImageFilledArc() don't match with gdImageArc() */
/* angles are off */
/* doesn't always fill completely */
/* gdImageFilledArc( im, CX(i,0), CY(i,0), */
/* (int)(rad*ellipsex*2.0), (int)(rad*ellipsey*2.0), */
/* (TO_INT_DEG_FLOOR(slice_angle[1][i])+270)%360, */
/* (TO_INT_DEG_CEIL(slice_angle[2][i])+270)%360, */
/* SliceColor[i], */
/* gdPie ); */
/* attempt to fill, if slice is wide enough */
{
float rad = rad1; /* local override */
if( (ABS(IX(i,1,1)-IX(i,2,1)) + ABS(IY(i,1,1)-IY(i,2,1))) > 2 )
{
gdImageFillToBorder( im, IX(i,0,0), IY(i,0,0), edge_color, SliceColor[i] );
}
/* catch missed pixels on narrow slices */
gdImageLine( im, CX(i,0), CY(i,0), IX(i,0,0), IY(i,0,0), SliceColor[i] );
}
}
}
if( GDCPIE_title )
{
struct fnt_sz_t tftsz = GDCfnt_sz( GDCPIE_title,
GDCPIE_title_size,
gdcpie_title_font, gdcpie_title_ptsize, 0.0, NULL );
GDCImageStringNL( im,
&GDC_fontc[GDCPIE_title_size],
gdcpie_title_font, gdcpie_title_ptsize,
0.0,
IMGWIDTH/2 - tftsz.w/2,
1,
GDCPIE_title,
LineColor,
GDC_JUSTIFY_CENTER,
NULL );
}
/* labels */
if( lbl )
{
float liner = rad;
rad += GDCPIE_label_dist;
for( i=0; i<num_points; ++i )
{
if( !others[i] &&
(!GDCPIE_missing || !GDCPIE_missing[i]) )
{
int lblx, pctx,
lbly, pcty,
linex, liney;
lbly = (liney = IY(i,0,0))-lbl_ftsz[i].h / 2;
lblx = pctx = linex = IX(i,0,0);
if( slice_angle[0][i] > M_PI ) /* which semicircle */
{
lblx -= lbl_ftsz[i].w;
pctx = lblx;
++linex;
}
else
--linex;
switch( GDCPIE_percent_labels )
{
case GDCPIE_PCT_LEFT: if( slice_angle[0][i] > M_PI )
pctx -= lbl_ftsz[i].w-1;
else
lblx += pct_ftsz[i].w+1;
pcty = IY(i,0,0) - ( 1+pct_ftsz[i].h ) / 2;
break;
case GDCPIE_PCT_RIGHT: if( slice_angle[0][i] > M_PI )
lblx -= pct_ftsz[i].w-1;
else
pctx += lbl_ftsz[i].w+1;
pcty = IY(i,0,0) - ( 1+pct_ftsz[i].h ) / 2;
break;
case GDCPIE_PCT_ABOVE: lbly += (1+pct_ftsz[i].h) / 2;
pcty = lbly - pct_ftsz[i].h;
break;
case GDCPIE_PCT_BELOW: lbly -= (1+pct_ftsz[i].h) / 2;
pcty = lbly + lbl_ftsz[i].h;
break;
case GDCPIE_PCT_NONE:
default:;
}
if( GDCPIE_percent_labels != GDCPIE_PCT_NONE )
GDCImageStringNL( im,
&GDC_fontc[GDCPIE_label_size],
gdcpie_label_font, gdcpie_label_ptsize,
0.0,
slice_angle[0][i] <= M_PI? pctx:
pctx+lbl_ftsz[i].w-pct_ftsz[i].w,
pcty,
pct_lbl[i],
LineColor,
GDC_JUSTIFY_CENTER,
NULL );
if( lbl[i] )
GDCImageStringNL( im,
&GDC_fontc[GDCPIE_label_size],
gdcpie_label_font, gdcpie_label_ptsize,
0.0,
lblx,
lbly,
lbl[i],
LineColor,
slice_angle[0][i] <= M_PI? GDC_JUSTIFY_LEFT:
GDC_JUSTIFY_RIGHT,
NULL );
if( GDCPIE_label_line )
{
float rad = liner;
gdImageLine( im, linex, liney, IX(i,0,0), IY(i,0,0), LineColor );
}
}
}
rad -= GDCPIE_label_dist;
}
fflush( img_fptr );
switch( GDC_image_type )
{
#ifdef HAVE_JPEG
case GDC_JPEG: gdImageJpeg( im, img_fptr, GDC_jpeg_quality ); break;
#endif
case GDC_WBMP: gdImageWBMP( im, PlotColor, img_fptr ); break;
case GDC_GIF: gdImageGif( im, img_fptr); break;
case GDC_PNG:
default: gdImagePng( im, img_fptr );
}
FREE_ARRAY1( lbl_ftsz );
FREE_ARRAY1( pct_ftsz );
FREE_ARRAY2( pct_lbl );
FREE_ARRAY2( slice_angle );
FREE_ARRAY1( others );
FREE_ARRAY1( SliceColorShd );
FREE_ARRAY1( SliceColor );
gdImageDestroy(im);
return;
}
int
main (void)
{
#ifdef HAVE_LIBPNG
/* Input and output files */
FILE *in;
FILE *out;
/* Input and output images */
gdImagePtr im_in = 0, im_out = 0;
/* Brush image */
gdImagePtr brush;
/* Color indexes */
int white;
int blue;
int red;
int green;
/* Points for polygon */
gdPoint points[3];
int i;
/* Create output image, in true color. */
im_out = gdImageCreateTrueColor (256 + 384, 384);
/* 2.0.2: first color allocated would automatically be background in a
palette based image. Since this is a truecolor image, with an
automatic background of black, we must fill it explicitly. */
white = gdImageColorAllocate (im_out, 255, 255, 255);
gdImageFilledRectangle (im_out, 0, 0, gdImageSX (im_out),
gdImageSY (im_out), white);
/* Set transparent color. */
gdImageColorTransparent (im_out, white);
/* Try to load demoin.png and paste part of it into the
output image. */
in = fopen ("demoin.png", "rb");
if (!in)
{
fprintf (stderr, "Can't load source image; this demo\n");
fprintf (stderr, "is much more impressive if demoin.png\n");
fprintf (stderr, "is available.\n");
im_in = 0;
}
else
{
int a;
im_in = gdImageCreateFromPng (in);
fclose (in);
/* Now copy, and magnify as we do so */
gdImageCopyResampled (im_out, im_in, 32, 32, 0, 0, 192, 192, 255, 255);
/* Now display variously rotated space shuttles in a circle of our own */
for (a = 0; (a < 360); a += 45)
{
int cx = cos (a * .0174532925) * 128;
int cy = -sin (a * .0174532925) * 128;
gdImageCopyRotated (im_out, im_in,
256 + 192 + cx, 192 + cy,
0, 0, gdImageSX (im_in), gdImageSY (im_in), a);
}
}
red = gdImageColorAllocate (im_out, 255, 0, 0);
green = gdImageColorAllocate (im_out, 0, 255, 0);
blue = gdImageColorAllocate (im_out, 0, 0, 255);
/* Fat Rectangle */
gdImageSetThickness (im_out, 4);
gdImageLine (im_out, 16, 16, 240, 16, green);
gdImageLine (im_out, 240, 16, 240, 240, green);
gdImageLine (im_out, 240, 240, 16, 240, green);
gdImageLine (im_out, 16, 240, 16, 16, green);
gdImageSetThickness (im_out, 1);
/* Circle */
gdImageArc (im_out, 128, 128, 60, 20, 0, 720, blue);
/* Arc */
gdImageArc (im_out, 128, 128, 40, 40, 90, 270, blue);
/* Flood fill: doesn't do much on a continuously
variable tone jpeg original. */
gdImageFill (im_out, 8, 8, blue);
/* Polygon */
points[0].x = 64;
points[0].y = 0;
points[1].x = 0;
points[1].y = 128;
points[2].x = 128;
points[2].y = 128;
gdImageFilledPolygon (im_out, points, 3, green);
/* 2.0.12: Antialiased Polygon */
gdImageSetAntiAliased (im_out, green);
for (i = 0; (i < 3); i++)
{
points[i].x += 128;
}
gdImageFilledPolygon (im_out, points, 3, gdAntiAliased);
/* Brush. A fairly wild example also involving a line style! */
if (im_in)
{
int style[8];
brush = gdImageCreateTrueColor (16, 16);
gdImageCopyResized (brush, im_in,
0, 0, 0, 0,
gdImageSX (brush), gdImageSY (brush),
gdImageSX (im_in), gdImageSY (im_in));
gdImageSetBrush (im_out, brush);
/* With a style, so they won't overprint each other.
Normally, they would, yielding a fat-brush effect. */
style[0] = 0;
style[1] = 0;
style[2] = 0;
style[3] = 0;
style[4] = 0;
style[5] = 0;
style[6] = 0;
style[7] = 1;
gdImageSetStyle (im_out, style, 8);
/* Draw the styled, brushed line */
gdImageLine (im_out, 0, 255, 255, 0, gdStyledBrushed);
}
/* Text (non-truetype; see gdtestft for a freetype demo) */
gdImageString (im_out, gdFontGiant, 32, 32, (unsigned char *) "hi", red);
gdImageStringUp (im_out, gdFontSmall, 64, 64, (unsigned char *) "hi", red);
/* Random antialiased lines; coordinates all over the image,
but the output will respect a small clipping rectangle */
gdImageSetClip(im_out, 0, gdImageSY(im_out) - 100,
100, gdImageSY(im_out));
/* Fixed seed for reproducibility of results */
srand(100);
for (i = 0; (i < 100); i++) {
int x1 = rand() % gdImageSX(im_out);
int y1 = rand() % gdImageSY(im_out);
int x2 = rand() % gdImageSX(im_out);
int y2 = rand() % gdImageSY(im_out);
gdImageSetAntiAliased(im_out, white);
gdImageLine (im_out, x1, y1, x2, y2, gdAntiAliased);
}
/* Make output image interlaced (progressive, in the case of JPEG) */
gdImageInterlace (im_out, 1);
out = fopen ("demoout.png", "wb");
/* Write PNG */
gdImagePng (im_out, out);
fclose (out);
/* 2.0.12: also write a paletteized version */
out = fopen ("demooutp.png", "wb");
gdImageTrueColorToPalette (im_out, 0, 256);
gdImagePng (im_out, out);
fclose (out);
gdImageDestroy (im_out);
if (im_in)
{
gdImageDestroy (im_in);
}
#else
fprintf (stderr, "No PNG library support.\n");
#endif /* HAVE_LIBPNG */
return 0;
}
int main(void)
{
/* Input and output files */
FILE *in;
FILE *out;
/* Input and output images */
gdImagePtr im_in, im_out;
/* Brush image */
gdImagePtr brush;
/* Color indexes */
int white;
int blue;
int red;
int green;
/* Points for polygon */
gdPoint points[3];
/* Create output image, 128 by 128 pixels. */
im_out = gdImageCreate(128, 128);
/* First color allocated is background. */
white = gdImageColorAllocate(im_out, 255, 255, 255);
/* Set transparent color. */
gdImageColorTransparent(im_out, white);
/* Try to load demoin.png and paste part of it into the
output image. */
in = fopen("demoin.png", "rb");
if (!in) {
fprintf(stderr, "Can't load source image; this demo\n");
fprintf(stderr, "is much more impressive if demoin.png\n");
fprintf(stderr, "is available.\n");
im_in = 0;
} else {
im_in = gdImageCreateFromPng(in);
fclose(in);
/* Now copy, and magnify as we do so */
gdImageCopyResized(im_out, im_in,
16, 16, 0, 0, 96, 96, 127, 127);
}
red = gdImageColorAllocate(im_out, 255, 0, 0);
green = gdImageColorAllocate(im_out, 0, 255, 0);
blue = gdImageColorAllocate(im_out, 0, 0, 255);
/* Rectangle */
gdImageLine(im_out, 8, 8, 120, 8, green);
gdImageLine(im_out, 120, 8, 120, 120, green);
gdImageLine(im_out, 120, 120, 8, 120, green);
gdImageLine(im_out, 8, 120, 8, 8, green);
/* Circle */
gdImageArc(im_out, 64, 64, 30, 10, 0, 360, blue);
/* Arc */
gdImageArc(im_out, 64, 64, 20, 20, 45, 135, blue);
/* Flood fill */
gdImageFill(im_out, 4, 4, blue);
/* Polygon */
points[0].x = 32;
points[0].y = 0;
points[1].x = 0;
points[1].y = 64;
points[2].x = 64;
points[2].y = 64;
gdImageFilledPolygon(im_out, points, 3, green);
/* Brush. A fairly wild example also involving a line style! */
if (im_in) {
int style[8];
brush = gdImageCreate(8, 8);
gdImageCopyResized(brush, im_in,
0, 0, 0, 0,
gdImageSX(brush), gdImageSY(brush),
gdImageSX(im_in), gdImageSY(im_in));
gdImageSetBrush(im_out, brush);
/* With a style, so they won't overprint each other.
Normally, they would, yielding a fat-brush effect. */
style[0] = 0;
style[1] = 0;
style[2] = 0;
style[3] = 0;
style[4] = 0;
style[5] = 0;
style[6] = 0;
style[7] = 1;
gdImageSetStyle(im_out, style, 8);
/* Draw the styled, brushed line */
gdImageLine(im_out, 0, 127, 127, 0, gdStyledBrushed);
}
/* Text */
gdImageString(im_out, gdFontGiant, 16, 16,
(unsigned char *) "hi", red);
gdImageStringUp(im_out, gdFontSmall, 32, 32,
(unsigned char *) "hi", red);
/* Make output image interlaced (allows "fade in" in some viewers,
and in the latest web browsers) */
gdImageInterlace(im_out, 1);
out = fopen("demoout.png", "wb");
/* Write PNG */
gdImagePng(im_out, out);
fclose(out);
gdImageDestroy(im_out);
if (im_in) {
gdImageDestroy(im_in);
}
return 0;
}
void graficotorta(int n, long cantidad[], int estado[]) {
gdImagePtr imagen;
FILE *archivo;
char titulo[513];
char etiqueta[512];
int blanco, negro, color;
gdFontPtr fuente = gdFontGetSmall();
imagen = gdImageCreateTrueColor(IMG_WIDTH, IMG_HEIGHT);
int i;
int angEtiqueta, xEtiqueta, yEtiqueta;
float eqgrados;
int iniciotrozo, fintrozo;
long suma = 0;
int aprox;
for (i=0; i<n; i++) {
suma = suma + cantidad[i];
}
eqgrados = 360.0/suma;
if (imagen) {
blanco = gdImageColorAllocate(imagen, 255, 255, 255);
negro = gdImageColorAllocate(imagen, 0, 0, 0);
// Pintamos el fondo Blanco
gdImageFill(imagen, 0, 0, blanco);
iniciotrozo = 0;
for (i=0; i<n; i++) {
fintrozo = (int) iniciotrozo+cantidad[i]*eqgrados;
angEtiqueta = (iniciotrozo + fintrozo) / 2;
xEtiqueta = cos(angEtiqueta*PI/180) * 220 + 400;
yEtiqueta = sin(angEtiqueta*PI/180) * 220 + 290;
// Color
color = gdImageColorAllocate(imagen, color_aleatoreo(), color_aleatoreo(), color_aleatoreo());
//Pintamos fondo el trozo
gdImageFilledArc(imagen, 400, 300, 400, 400, iniciotrozo, fintrozo, color, gdArc);
//Etiqueta de peticion
memset(etiqueta, 0, 513);
snprintf(etiqueta, 512, "peticion %s",intStr(estado[i]));
gdImageString(imagen, fuente, xEtiqueta-25, yEtiqueta, (unsigned char *) etiqueta, negro);
//Correccion de aproximacion para el porcentaje
aprox = cantidad[i] * 1000 / suma;
aprox = aprox%10;
if (aprox>=5)
aprox = 1;
else
aprox = 0;
//Etiqueta de porcentaje
memset(etiqueta, 0, 513);
snprintf(etiqueta, 512, "%s%%",longStr(cantidad[i]*100/suma+aprox));
if (cantidad[i]*100/suma<3){ //Para que la etiqueta sea legible
xEtiqueta = xEtiqueta + 52;
yEtiqueta = yEtiqueta - 15;
}
gdImageString(imagen, fuente, xEtiqueta, yEtiqueta+15, (unsigned char *) etiqueta, negro);
iniciotrozo = (int) iniciotrozo+cantidad[i]*eqgrados;
}
//Pintamos borde del circulo
gdImageArc(imagen, 400, 300, 400, 400, 0, 360, negro);
// Coloco el título
memset(titulo, 0, 513);
snprintf(titulo, 512, "Peticiones Por Estado");
gdImageString(imagen, fuente, (int) IMG_WIDTH * 0.4, 25, (unsigned char *) titulo, negro);
// Pintamos Borde
gdImageLine(imagen, BORDE_ANCHO, BORDE_ALTO, (IMG_WIDTH - BORDE_ANCHO), BORDE_ALTO, negro); //linea horiz superior
gdImageLine(imagen, BORDE_ANCHO, (IMG_HEIGHT - BORDE_ALTO), (IMG_WIDTH - BORDE_ANCHO), (IMG_HEIGHT - BORDE_ALTO), negro); //linea horiz inferior
gdImageLine(imagen, BORDE_ANCHO, BORDE_ALTO, BORDE_ANCHO, (IMG_HEIGHT - BORDE_ALTO), negro); //linea vertical izquierda
gdImageLine(imagen, (IMG_WIDTH - BORDE_ANCHO), BORDE_ALTO, (IMG_WIDTH - BORDE_ANCHO), (IMG_HEIGHT - BORDE_ALTO), negro); //linea horiz derecha
// Guardar imagen
archivo = fopen("graficot.jpg", "wb");
if (archivo != NULL) {
gdImageJpeg(imagen, archivo, 100);
fclose(archivo);
}
gdImageDestroy(imagen);
}
}
static void vrml_ellipse(GVJ_t * job, pointf * A, int filled)
{
FILE *out = job->output_file;
obj_state_t *obj = job->obj;
node_t *n;
edge_t *e;
double z = obj->z;
double rx, ry;
int dx, dy;
pointf npf, nqf;
point np;
int pen;
gdImagePtr brush = NULL;
rx = A[1].x - A[0].x;
ry = A[1].y - A[0].y;
switch (obj->type) {
case ROOTGRAPH_OBJTYPE:
case CLUSTER_OBJTYPE:
break;
case NODE_OBJTYPE:
n = obj->u.n;
if (shapeOf(n) == SH_POINT) {
doSphere (job, n, A[0], z, rx, ry);
return;
}
pen = set_penstyle(job, im, brush);
npf = vrml_node_point(job, n, A[0]);
nqf = vrml_node_point(job, n, A[1]);
dx = ROUND(2 * (nqf.x - npf.x));
dy = ROUND(2 * (nqf.y - npf.y));
PF2P(npf, np);
if (filled)
gdImageFilledEllipse(im, np.x, np.y, dx, dy, color_index(im, obj->fillcolor));
gdImageArc(im, np.x, np.y, dx, dy, 0, 360, pen);
if (brush)
gdImageDestroy(brush);
fprintf(out, "Transform {\n");
fprintf(out, " translation %.3f %.3f %.3f\n", A[0].x, A[0].y, z);
fprintf(out, " scale %.3f %.3f 1\n", rx, ry);
fprintf(out, " children [\n");
fprintf(out, " Transform {\n");
fprintf(out, " rotation 1 0 0 1.57\n");
fprintf(out, " children [\n");
fprintf(out, " Shape {\n");
fprintf(out, " geometry Cylinder { side FALSE }\n");
fprintf(out, " appearance Appearance {\n");
fprintf(out, " material Material {\n");
fprintf(out, " ambientIntensity 0.33\n");
fprintf(out, " diffuseColor 1 1 1\n");
fprintf(out, " }\n");
fprintf(out, " texture ImageTexture { url \"node%d.png\" }\n", n->id);
fprintf(out, " }\n");
fprintf(out, " }\n");
fprintf(out, " ]\n");
fprintf(out, " }\n");
fprintf(out, " ]\n");
fprintf(out, "}\n");
break;
case EDGE_OBJTYPE:
e = obj->u.e;
/* this is gruesome, but how else can we get z coord */
if (DIST2(A[0], ND_coord_i(e->tail)) < DIST2(A[0], ND_coord_i(e->head)))
z = obj->tail_z;
else
z = obj->head_z;
fprintf(out, "Transform {\n");
fprintf(out, " translation %.3f %.3f %.3f\n", A[0].x, A[0].y, z);
fprintf(out, " children [\n");
fprintf(out, " Shape {\n");
fprintf(out, " geometry Sphere {radius %.3f }\n", (double) rx);
fprintf(out, " appearance USE E%d\n", e->id);
fprintf(out, " }\n");
fprintf(out, " ]\n");
fprintf(out, "}\n");
}
}