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Somewhat crude concentric-circle cluster name positioning

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git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@2279 8092fc87-c524-0410-9efc-e669fe64eaf9
This commit is contained in:
avolkov
2006-03-17 21:43:45 +00:00
parent b174ecf926
commit 497fd8be91
1 changed files with 49 additions and 13 deletions
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tools/map/mapgen.c
+47 -11
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@@ -22,6 +22,12 @@
#include "unicode.h"
#include "mapdrv.h"
#ifndef M_PI
# define M_PI 3.1415927
#endif
#ifndef SQR
# define SQR(x) ((x) * (x))
#endif
extern const mg_driver_t sdlpng_drv;
@@ -1878,12 +1884,14 @@ static void drawSingularNamesSize(const mg_driver_t* dst, script_t* scr, int siz
r.x = r.y = 0;
dst->getTextSize(scr->cnamefnt, star->cluster, &r);
// add a little x margin
r.w += r.h / 12;
// placement is done in grid coordinates
r.w /= stepx;
r.h /= stepy;
// placement is done in grid coordinates
radxofs = img->radius * 1.2 / stepx;
radyofs = img->radius / stepy;
radxofs = img->radius * 1.1 / stepx;
radyofs = img->radius * 1.1 / stepy;
// search for a good placement spot
for (rx = radxofs, ry = radyofs;
@@ -1961,32 +1969,60 @@ static void drawClusteredNames(const mg_driver_t* dst, script_t* scr)
{
const cluster_t* cluster = scr->clusters + i;
const star_t* star = scr->stars + cluster->first;
const char* cname = star->cluster;
mg_rectf_t r;
int placed = 0;
int j;
double maxd;
double rad, dxrad, ang;
// not interested in singular stars
if (cluster->cstars <= 1)
continue;
// find the farthest star for center
for (j = 0, maxd = 0; j < cluster->cstars; ++j, ++star)
{
double d = sqrt(SQR(cluster->center.x - star->pos.x)
+ SQR(cluster->center.y - star->pos.y));
if (d > maxd)
d = maxd;
}
r.x = r.y = 0;
dst->getTextSize(scr->cnamefnt, star->cluster, &r);
dst->getTextSize(scr->cnamefnt, cname, &r);
// add a little x margin
r.w += r.h / 12;
// placement is done in grid coordinates
r.w /= stepx;
r.h /= stepy;
// placement is done in grid coordinates
if (!placed)
{ // try cluster center
// stretch out the ellipse over x
dxrad = r.w / r.h;
dxrad -= (dxrad - 1) * 0.5; // not so severe
for (rad = 0; !placed && rad < maxd + r.h * 3; rad += r.h * 0.1)
{
double astep = M_PI / (rad / r.h * 32);
for (ang = 0; !placed && ang < M_PI * 2; ang += astep)
{
placed = tryPlaceRect(scr, objt_TextPlacement, &r,
cluster->center.x, cluster->center.y);
cluster->center.x + cos(ang) * rad * dxrad,
cluster->center.y + sin(ang) * rad);
}
}
if (!placed)
continue; // oops
{
mg_verbose(2, "Warning: cannot place '%s' w/o overlap\n", cname);
continue;
}
dst->drawText(scr->cnamefnt,
orgx + r.x * stepx,
orgy - (r.y + r.h) * stepy,
star->cluster, scr->cnameclr);
cname, scr->cnameclr);
// register a rect grid object
addObject(scr, objt_ClusterText, sht_Rect,
@@ -2049,7 +2085,7 @@ static void drawStarDesignations(const mg_driver_t* dst, script_t* scr)
dx = star->pos.x - cluster->center.x;
dy = star->pos.y - cluster->center.y;
length = sqrt(dx*dx + dy*dy);
length = sqrt(SQR(dx) + SQR(dy));
sinl = dy / length;
cosl = dx / length;