void ExportElements(
IJtFaceEmitter emitter,
FilteredElementCollector collector,
Options opt)
{
int nElements = 0;
int nSolids = 0;
// 导出所有构建
foreach (Element e in collector)
{
nElements += ExportElement(emitter, e, opt, ref nSolids);
}
int nFaces = emitter.GetFaceCount();
int nTriangles = emitter.GetTriangleCount();
int nVertices = emitter.GetVertexCount();
string msg = string.Format(
"{0} element{1} with {2} solid{3}, "
+ "{4} face{5}, {6} triangle{7} and "
+ "{8} vertice{9} exported.",
nElements, ObjExportUtil.PluralSuffix(nElements),
nSolids, ObjExportUtil.PluralSuffix(nSolids),
nFaces, ObjExportUtil.PluralSuffix(nFaces),
nTriangles, ObjExportUtil.PluralSuffix(nTriangles),
nVertices, ObjExportUtil.PluralSuffix(nVertices));
InfoMsg(msg);
}
/// <summary>
/// Export a non-empty solid.
/// </summary>
bool ExportSolid(
IJtFaceEmitter emitter,
Document doc,
Solid solid,
Color color,
int transparency)
{
Material m;
Color c;
int t;
foreach (Face face in solid.Faces)
{
m = doc.GetElement(
face.MaterialElementId) as Material;
c = (null == m) ? color : m.Color;
t = (null == m)
? transparency
: m.Transparency;
emitter.EmitFace(face,
(null == c) ? DefaultColor : c,
t);
}
return(true);
}
/// <summary>
/// Export an element, i.e. all non-empty solids
/// encountered, and return the number of elements
/// exported.
/// If the element is a group, this method is
/// called recursively on the group members.
/// </summary>
int ExportElement(
IJtFaceEmitter emitter,
Element e,
Options opt,
ref int nSolids)
{
if (e is Group group)
{
int n = 0;
foreach (ElementId id in group.GetMemberIds())
{
Element e2 = e.Document.GetElement(id);
n += ExportElement(emitter, e2, opt, ref nSolids);
}
return(n);
}
string desc = ObjExportUtil.ElementDescription(e);
Category cat = e.Category;
if (null == cat)
{
Debug.Print("Element '{0}' has no category.", desc);
return(0);
}
Material material = cat.Material;
// Column category has no material, maybe all
// family instances have no defualt material,
// so we cannot simply skip them here:
//if( null == material )
//{
// Debug.Print( "Category '{0}' of element '{1}' "
// + "has no material.", cat.Name, desc );
// return 0;
//}
Color color = material?.Color;
int transparency = (null == material) ? 0 : material.Transparency;
//Debug.Assert( null != color,
// "expected a valid category material colour" );
nSolids += ExportSolids(emitter, e, opt, color, transparency);
return(1);
}
int ExportSolids(
IJtFaceEmitter emitter,
Element e,
Options opt,
Color color,
int shininess,
int transparency)
{
int nSolids = 0;
GeometryElement geo = e.get_Geometry(opt);
Solid solid;
if (null != geo)
{
Document doc = e.Document;
if (e is FamilyInstance)
{
geo = geo.GetTransformed(Transform.Identity);
}
GeometryInstance inst = null;
foreach (GeometryObject obj in geo)
{
solid = obj as Solid;
if (null != solid && 0 < solid.Faces.Size && ExportSolid(emitter, doc, solid, color, shininess, transparency))
{
++nSolids;
}
inst = obj as GeometryInstance;
}
if (0 == nSolids && null != inst)
{
geo = inst.GetSymbolGeometry();
foreach (GeometryObject obj in geo)
{
solid = obj as Solid;
if (null != solid && 0 < solid.Faces.Size && ExportSolid(emitter, doc, solid, color, shininess, transparency))
{
++nSolids;
}
}
}
}
return(nSolids);
}
int ExportElement(
IJtFaceEmitter emitter,
Element e,
Options opt,
ref int nSolids)
{
Group group = e as Group;
if (null != group)
{
int n = 0;
foreach (ElementId id in group.GetMemberIds())
{
Element e2 = e.Document.GetElement(id);
n += ExportElement(emitter, e2, opt, ref nSolids);
}
return(n);
}
string desc = Util.ElementDescription(e);
Category cat = e.Category;
if (null == cat)
{
Debug.Print("Element '{0}' has no " + "category.", desc);
return(0);
}
Material material = cat.Material;
Color color = (null == material) ? null : material.Color;
int transparency = (null == material) ? 0 : material.Transparency;
int shininess = (null == material) ? 0 : material.Shininess;
nSolids += ExportSolids(emitter, e, opt, color, shininess, transparency);
return(1);
}
/// <summary>
/// Export all non-empty solids found for
/// the given element. Family instances may have
/// their own non-empty solids, in which case
/// those are used, otherwise the symbol geometry.
/// The symbol geometry could keep track of the
/// instance transform to map it to the actual
/// project location. Instead, we ask for
/// transformed geometry to be returned, so the
/// resulting solids are already in place.
/// </summary>
int ExportSolids(
IJtFaceEmitter emitter,
Element e,
Options opt,
Color color,
int transparency)
{
int nSolids = 0;
GeometryElement geo = e.get_Geometry(opt);
Solid solid;
if (null != geo)
{
Document doc = e.Document;
if (e is FamilyInstance)
{
geo = geo.GetTransformed(Transform.Identity);
}
GeometryInstance inst = null;
//Transform t = Transform.Identity;
// Some columns have no solids, and we have to
// retrieve the geometry from the symbol;
// others do have solids on the instance itself
// and no contents in the instance geometry
// (e.g. in rst_basic_sample_project.rvt).
foreach (GeometryObject obj in geo)
{
solid = obj as Solid;
if (null != solid &&
0 < solid.Faces.Size &&
ExportSolid(emitter, doc, e, solid,
color, transparency))
{
++nSolids;
}
inst = obj as GeometryInstance;
}
if (0 == nSolids && null != inst)
{
geo = inst.GetSymbolGeometry();
//t = inst.Transform;
foreach (GeometryObject obj in geo)
{
solid = obj as Solid;
if (null != solid &&
0 < solid.Faces.Size &&
ExportSolid(emitter, doc, e, solid,
color, transparency))
{
++nSolids;
}
}
}
}
return(nSolids);
}
/// <summary>
/// Export all non-empty solids found for
/// the given element. Family instances may have
/// their own non-empty solids, in which case
/// those are used, otherwise the symbol geometry.
/// The symbol geometry could keep track of the
/// instance transform to map it to the actual
/// project location. Instead, we ask for
/// transformed geometry to be returned, so the
/// resulting solids are already in place.
/// </summary>
int ExportSolids(
IJtFaceEmitter emitter,
Element e,
Options opt,
Color color,
int transparency )
{
int nSolids = 0;
GeometryElement geo = e.get_Geometry( opt );
Solid solid;
if( null != geo )
{
Document doc = e.Document;
if( e is FamilyInstance )
{
geo = geo.GetTransformed(
Transform.Identity );
}
GeometryInstance inst = null;
//Transform t = Transform.Identity;
// Some columns have no solids, and we have to
// retrieve the geometry from the symbol;
// others do have solids on the instance itself
// and no contents in the instance geometry
// (e.g. in rst_basic_sample_project.rvt).
foreach( GeometryObject obj in geo )
{
solid = obj as Solid;
if( null != solid
&& 0 < solid.Faces.Size
&& ExportSolid( emitter, doc, solid,
color, transparency ) )
{
++nSolids;
}
inst = obj as GeometryInstance;
}
if( 0 == nSolids && null != inst )
{
geo = inst.GetSymbolGeometry();
//t = inst.Transform;
foreach( GeometryObject obj in geo )
{
solid = obj as Solid;
if( null != solid
&& 0 < solid.Faces.Size
&& ExportSolid( emitter, doc, solid,
color, transparency ) )
{
++nSolids;
}
}
}
}
return nSolids;
}
/// <summary>
/// Export a non-empty solid.
/// </summary>
bool ExportSolid(
IJtFaceEmitter emitter,
Document doc,
Solid solid,
Color color,
int transparency )
{
Material m;
Color c;
int t;
foreach( Face face in solid.Faces )
{
m = doc.GetElement(
face.MaterialElementId ) as Material;
c = ( null == m ) ? color : m.Color;
t = ( null == m )
? transparency
: m.Transparency;
emitter.EmitFace( face,
(null == c) ? DefaultColor : c,
t );
}
return true;
}
void ExportElements(
IJtFaceEmitter emitter,
FilteredElementCollector collector,
Options opt )
{
int nElements = 0;
int nSolids = 0;
foreach( Element e in collector )
{
nElements += ExportElement(
emitter, e, opt, ref nSolids );
}
int nFaces = emitter.GetFaceCount();
int nTriangles = emitter.GetTriangleCount();
int nVertices = emitter.GetVertexCount();
string msg = string.Format(
"{0} element{1} with {2} solid{3}, "
+ "{4} face{5}, {6} triangle{7} and "
+ "{8} vertice{9} exported.",
nElements, Util.PluralSuffix( nElements ),
nSolids, Util.PluralSuffix( nSolids ),
nFaces, Util.PluralSuffix( nFaces ),
nTriangles, Util.PluralSuffix( nTriangles ),
nVertices, Util.PluralSuffix( nVertices ) );
InfoMsg( msg );
}
/// <summary>
/// Export an element, i.e. all non-empty solids
/// encountered, and return the number of elements
/// exported.
/// If the element is a group, this method is
/// called recursively on the group members.
/// </summary>
int ExportElement(
IJtFaceEmitter emitter,
Element e,
Options opt,
ref int nSolids )
{
Group group = e as Group;
if( null != group )
{
int n = 0;
foreach( ElementId id
in group.GetMemberIds() )
{
Element e2 = e.Document.GetElement(
id );
n += ExportElement( emitter, e2, opt, ref nSolids );
}
return n;
}
string desc = Util.ElementDescription( e );
Category cat = e.Category;
if( null == cat )
{
Debug.Print( "Element '{0}' has no "
+ "category.", desc );
return 0;
}
Material material = cat.Material;
// Column category has no material, maybe all
// family instances have no defualt material,
// so we cannot simply skip them here:
//if( null == material )
//{
// Debug.Print( "Category '{0}' of element '{1}' "
// + "has no material.", cat.Name, desc );
// return 0;
//}
Color color = ( null == material )
? null
: material.Color;
int transparency = ( null == material )
? 0
: material.Transparency;
//Debug.Assert( null != color,
// "expected a valid category material colour" );
nSolids += ExportSolids( emitter, e, opt, color, transparency );
return 1;
}