void PolyMolecule::computeNormals()
{
m_FaceNormals.fill(vec3_t(0,0,0), m_Faces.size());
m_NodeNormals.fill(vec3_t(0,0,0), m_Nodes.size());
for (int i = 0; i < m_Faces.size(); ++i) {
QVector<vec3_t> x(m_Faces[i].size() + 1);
vec3_t x_face(0,0,0);
for (int j = 0; j < m_Faces[i].size(); ++j) {
x[j] = getXNode(m_Faces[i][j]);
x_face += x[j];
}
x.last() = x.first();
x_face *= 1.0/m_Faces[i].size();
m_FaceNormals[i] = vec3_t(0,0,0);
for (int j = 0; j < m_Faces[i].size(); ++j) {
m_FaceNormals[i] += triNormal(x_face, x[j], x[j+1]);
}
for (int j = 0; j < m_Faces[i].size(); ++j) {
vec3_t n = m_FaceNormals[i];
//n.normalise();
m_NodeNormals[m_Faces[i][j]] += n;
}
}
for (int i = 0; i < m_Nodes.size(); ++i) {
m_NodeNormals[i].normalise();
}
}
static void
x_analyze(x_display *xdpy, int fam)
{
int i, j, n, face, pixsize, nsizes;
char *name;
if (tmp_fonts) tmp_free();
tmp_fonts = XListFonts(xdpy->dpy, pattern[((unsigned int)fam)>>2], 1024, &n);
for (i=0 ; i<n ; i++) {
name = x_face(tmp_fonts[i], &face);
if (!name) continue;
/* extract pixels field */
pixsize = 0;
if (name[0]!='*') while (name[0] && name[0]>='0' && name[0]<='9')
pixsize = 10*pixsize + *(name++) - '0';
else
name++;
if (name[0]!='-') continue;
/* protect against superlong font names */
if (!pixsize && strlen(tmp_fonts[i])>120) continue;
face += fam;
nsizes = xdpy->available[face].nsizes;
if (x_lookup(pixsize, xdpy->available[face].sizes, nsizes)) continue;
if (nsizes%12==0) {
int *sizes = xdpy->available[face].sizes;
char **names = xdpy->available[face].names;
xdpy->available[face].sizes = p_realloc(sizes, sizeof(int)*(nsizes+12));
if (!xdpy->available[face].sizes) {
xdpy->available[face].sizes = sizes;
return;
}
xdpy->available[face].names = p_realloc(names,sizeof(char*)*(nsizes+13));
if (!xdpy->available[face].names) {
xdpy->available[face].names = names;
return;
}
}
j = x_insert(pixsize, xdpy->available[face].sizes,
xdpy->available[face].names, nsizes);
xdpy->available[face].nsizes++;
if (pixsize) {
xdpy->available[face].names[j] = p_strcpy(tmp_fonts[i]);
} else {
/* scalable font needs wildcard name */
char nm[128], *pnm = nm;
int n = 7;
name = tmp_fonts[i];
while (n--) while ((*(pnm++)= *(name++))!='-');
/* skip over pixels, points fields */
*(pnm++)= '*'; *(pnm++)= '-'; *(pnm++)= '*'; *(pnm++)= '-';
for (n=2 ; n-- ;) while (name[0] && *(name++)!='-');
/* copy hres, vres, spacing fields */
for (n=3 ; n-- ;) while (name[0] && (*(pnm++)= *(name++))!='-');
/* skip over average width field */
*(pnm++)= '*'; *(pnm++)= '-';
while (name[0] && *(name++)!='-');
/* copy remainder (character set fields) */
while ((*(pnm++)= *(name++)));
xdpy->available[face].names[j] = p_strcpy(nm);
}
}
tmp_free();
}
