void DymaxIcosa::AddFlatTri(DLine2Array &polys, int a, int b, int c, int d)
{
DLine2 poly;
poly.Append(m_flatverts[a]);
poly.Append(m_flatverts[b]);
poly.Append(m_flatverts[c]);
if (d != -1)
poly.Append(m_flatverts[d]);
polys.push_back(poly);
}
/**
* Sets the base footprint of the building to be a circle. A circle
* is represented by a 20-sided polygonal footprint.
*
* \param center The location of the building's center.
* \param fRad The radius of the building.
*/
void vtBuilding::SetCircle(const DPoint2 ¢er, float fRad)
{
DLine2 fp;
int i;
for (i = 0; i < 20; i++)
{
double angle = i * PI2d / 20;
DPoint2 vec(cos(angle) * fRad, sin(angle) * fRad);
fp.Append(center + vec);
}
SetFootprint(0, fp);
}
void vtBuilding::SetRectangle(const DPoint2 ¢er, float fWidth,
float fDepth, float fRotation)
{
vtLevel *pLev;
// this function requires at least one level to exist
if (m_Levels.GetSize() == 0)
{
pLev = new vtLevel;
pLev->m_iStories = 1;
m_Levels.Append(pLev);
}
else
pLev = m_Levels[0];
// if rotation is unset, default to none
if (fRotation == -1.0f)
fRotation = 0.0f;
DPoint2 pt(fWidth / 2.0, fDepth / 2.0);
DPoint2 corner[4];
corner[0].Set(-pt.x, -pt.y);
corner[1].Set(pt.x, -pt.y);
corner[2].Set(pt.x, pt.y);
corner[3].Set(-pt.x, pt.y);
corner[0].Rotate(fRotation);
corner[1].Rotate(fRotation);
corner[2].Rotate(fRotation);
corner[3].Rotate(fRotation);
DLine2 dl;
dl.Append(center + corner[0]);
dl.Append(center + corner[1]);
dl.Append(center + corner[2]);
dl.Append(center + corner[3]);
pLev->SetFootprint(dl);
}
void DLine2FromString(const char *data, DLine2 &line)
{
// Speed/memory optimization: quick check of how many vertices
// there are, then preallocate that many
uint verts = 0;
for (size_t i = 0; i < strlen(data); i++)
if (data[i] == ',')
verts++;
line.Empty();
line.SetMaxSize(verts);
double x, y;
while (sscanf(data, "%lf,%lf", &x, &y) == 2)
{
line.Append(DPoint2(x,y));
data = strchr(data, ' ');
if (!data)
break;
data++;
}
}
void StructureVisitor::startElement (const char * name, const XMLAttributes &atts)
{
int i;
if (_level == 0)
{
if (string(name) != (string)"structures-file")
{
string message = "Root element name is ";
message += name;
message += "; expected structures-file";
throw xh_io_exception(message, "XML Reader");
}
push_state(NULL, "top");
return;
}
if (_level == 1)
{
if (string(name) == (string)"coordinates")
{
const char *type = atts.getValue("type");
const char *value = atts.getValue("value");
m_pSA->m_proj.SetTextDescription(type, value);
g_Conv.Setup(m_pSA->m_proj.GetUnits(), DRECT(0,1,1,0));
}
else if (string(name) == (string)"structures")
{
push_state(NULL, "structures");
}
else
{
// Unknown element: ignore
push_state(NULL, "dummy");
}
return;
}
const char *attval;
if (_level == 2)
{
vtStructure *pStruct = NULL;
if (string(name) == (string)"structure")
{
// Get the name.
attval = atts.getValue("type");
if (attval != NULL)
{
if (string(attval) == (string)"building")
{
vtBuilding *bld = m_pSA->NewBuilding();
pStruct = bld;
}
if (string(attval) == (string)"linear")
{
vtFence *fen = m_pSA->NewFence();
pStruct = fen;
}
if (string(attval) == (string)"instance")
{
vtStructInstance *inst = m_pSA->NewInstance();
pStruct = inst;
}
}
push_state(pStruct, "structure");
}
else
{
// Unknown field, ignore.
pStruct = NULL;
push_state(pStruct, "dummy");
}
return;
}
State &st = state();
vtStructure *pStruct = st.item;
if (!pStruct)
return;
vtFence *fen = pStruct->GetFence();
vtBuilding *bld = pStruct->GetBuilding();
vtStructInstance *inst = pStruct->GetInstance();
if (_level == 3 && bld != NULL)
{
if (string(name) == (string)"height")
{
attval = atts.getValue("stories");
if (attval)
{
// height in stories ("floors")
int stories = atoi(attval);
if (bld)
bld->SetStories(stories);
}
}
if (string(name) == (string)"walls")
{
attval = atts.getValue("color");
if (bld && attval)
st.wall_color = ParseRGB(attval);
}
if (string(name) == (string)"shapes")
{
push_state(pStruct, "shapes");
return;
}
if (string(name) == (string)"roof")
{
// hack to postpone setting building color until now
bld->SetColor(BLD_BASIC, st.wall_color);
const char *type = atts.getValue("type");
if (bld && (string)type == (string)"flat")
bld->SetRoofType(ROOF_FLAT);
if (bld && (string)type == (string)"shed")
bld->SetRoofType(ROOF_SHED);
if (bld && (string)type == (string)"gable")
bld->SetRoofType(ROOF_GABLE);
if (bld && (string)type == (string)"hip")
bld->SetRoofType(ROOF_HIP);
attval = atts.getValue("color");
if (bld && attval)
bld->SetColor(BLD_ROOF, ParseRGB(attval));
}
if (string(name) == (string)"points")
{
attval = atts.getValue("num");
}
return;
}
if (_level == 3 && fen != NULL)
{
if (string(name) == (string)"points")
{
int points;
const char *num = atts.getValue("num");
points = atoi(num);
DLine2 &fencepts = fen->GetFencePoints();
DPoint2 loc;
const char *coords = atts.getValue("coords");
const char *cp = coords;
for (i = 0; i < points; i++)
{
sscanf(cp, "%lf %lf", &loc.x, &loc.y);
fencepts.Append(loc);
cp = strchr(cp, ' ');
cp++;
cp = strchr(cp, ' ');
cp++;
}
}
if (string(name) == (string)"height")
{
// absolute height in meters
const char *abs_str = atts.getValue("abs");
if (abs_str)
fen->GetParams().m_fPostHeight = (float)atof(abs_str);
}
if (string(name) == (string)"posts")
{
// this linear structure has posts
const char *type = atts.getValue("type");
if (0 == strcmp(type, "wood"))
fen->ApplyStyle(FS_WOOD_POSTS_WIRE);
else if (0 == strcmp(type, "steel"))
fen->ApplyStyle(FS_CHAINLINK);
else
fen->ApplyStyle(FS_METAL_POSTS_WIRE);
const char *size = atts.getValue("size");
FPoint3 postsize;
postsize.y = fen->GetParams().m_fPostHeight;
sscanf(size, "%f, %f", &postsize.x, &postsize.z);
fen->GetParams().m_fPostWidth = postsize.x;
fen->GetParams().m_fPostDepth = postsize.z;
const char *spacing = atts.getValue("spacing");
if (spacing)
fen->GetParams().m_fPostSpacing = (float)atof(spacing);
}
if (string(name) == (string)"connect")
{
attval = atts.getValue("type");
// not supported here
}
return;
}
if (_level == 3 && inst != NULL)
{
if (string(name) == (string)"placement")
{
const char *loc = atts.getValue("location");
if (loc)
{
DPoint2 p;
sscanf(loc, "%lf %lf", &p.x, &p.y);
inst->SetPoint(p);
}
const char *rot = atts.getValue("rotation");
if (rot)
{
float fRot;
sscanf(rot, "%f", &fRot);
inst->SetRotation(fRot);
}
}
else
_data = "";
}
if (_level == 4 && bld != NULL)
{
if (string(name) == (string)"rect")
{
DPoint2 loc;
FPoint2 size2;
const char *ref_point = atts.getValue("ref_point");
if (ref_point)
{
sscanf(ref_point, "%lf %lf", &loc.x, &loc.y);
bld->SetRectangle(loc, 10, 10);
}
float fRotation = 0.0f;
const char *rot = atts.getValue("rot");
if (rot)
{
fRotation = (float)atof(rot);
}
const char *size = atts.getValue("size");
if (size)
{
sscanf(size, "%f, %f", &size2.x, &size2.y);
bld->SetRectangle(loc, size2.x, size2.y, fRotation);
}
}
if (string(name) == (string)"circle")
{
DPoint2 loc;
const char *ref_point = atts.getValue("ref_point");
if (ref_point)
{
sscanf(ref_point, "%lf %lf", &loc.x, &loc.y);
bld->SetCircle(loc, 10);
}
const char *radius = atts.getValue("radius");
if (radius)
{
bld->SetCircle(loc, (float)atof(radius));
}
}
if (string(name) == (string)"poly")
{
int points;
const char *num = atts.getValue("num");
points = atoi(num);
DLine2 foot;
DPoint2 loc;
const char *coords = atts.getValue("coords");
const char *cp = coords;
for (i = 0; i < points; i++)
{
sscanf(cp, "%lf %lf", &loc.x, &loc.y);
foot.Append(loc);
cp = strchr(cp, ' ');
cp++;
cp = strchr(cp, ' ');
cp++;
}
bld->SetFootprint(0, foot);
}
}
}