Log of /trunk/geom/geom/src/TGeoCone.cxx
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Revision
48928 -
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Modified
Mon Mar 25 15:45:11 2013 UTC (22 months ago) by
agheata
File length: 80410 byte(s)
Diff to
previous 46731
Large scale cleanup in shapes navigation interfaces adding const modifier for point and direction parameters passed as input arguments.
Revision
46731 -
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Modified
Tue Oct 23 07:45:15 2012 UTC (2 years, 3 months ago) by
agheata
File length: 80206 byte(s)
Diff to
previous 44507
Improvement for safe distance computation for cones, coneseg and pcon. Storing transient sin/cos values frequently used in pcon navigation.
Revision
44507 -
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Modified
Mon Jun 4 12:30:41 2012 UTC (2 years, 7 months ago) by
axel
File length: 82632 byte(s)
Diff to
previous 39020
Remove
using namespace std;
from Riostream.h, which has huge consequences for all of ROOT.
Riostream.h is now a simple wrapper for fstream, iostream, iomanip for backward compatibility; Riosfwd.h simply wraps iosfwd.
Because of templates and their inline functions, Riostream.h needed to be included in headers, too (e.g. TParameter.h), which violated the assumption that Riostream.h is not exposing its using namespace std to headers.
ROOT now requires R__ANSISTREAM, R__SSTREAM, which does not change the set of supported compilers.
Without "using namespace std", several identifiers are now prefixed by std::; e.g. roofit/* source files now have a using namespace std to keep their coding style.
TFile::MakeProject() now generates "using namespace std" to convert the CINT-style class names into C++ ones.
Revision
30012 -
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Modified
Wed Sep 2 06:55:05 2009 UTC (5 years, 4 months ago) by
brun
File length: 82385 byte(s)
Diff to
previous 27611
From Andrei and Yuri Fisiak:
a small fix by Yuri in restoring the old safety value. The modification in TGeoCone.cxx is disabled for the moment and represent a first try (not completed) to compute accurate safety for cones.
Revision
27596 -
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Modified
Tue Feb 24 15:45:12 2009 UTC (5 years, 10 months ago) by
brun
File length: 81642 byte(s)
Diff to
previous 24870
From Andrei:
- avoid a useless mater->local conversion in TGeoNavigator::IsSameLocation()
- fix in TGeoCone::DistFromOutsideS() that could wrongly compute the distance in case rmin=rmax for a cone top/bottom
Revision
24870 -
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Modified
Thu Jul 17 16:30:58 2008 UTC (6 years, 6 months ago) by
brun
File length: 81636 byte(s)
Diff to
previous 22923
From Andrei:
new development related to overlap checking. This generates not only the shape mesh vertices but some 1000 points on the shape outline/surface. This is implemented for all important shapes except TGeoPcon (which works using the old method).
Revision
18553 -
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Modified
Mon Apr 23 08:58:53 2007 UTC (7 years, 9 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 77960 byte(s)
Diff to
previous 17356
From Andrei:
- new method TGeoShape::GetMeshNumbers() that allows getting the number of points, segments and polygons in the mesh of any shape - to be used by an upgrade of the overlap checker
- addition in the overlap checker to use the above info
- modifications in TGeoManager for improving performance for tracking geantinos with G4root interface
Revision
17306 -
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Modified
Fri Jan 12 16:03:17 2007 UTC (8 years ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 77305 byte(s)
Diff to
previous 16788
TMath::Abs, TMath::Min, TMath::Max, TMath::Sign, TMath::Range
These functions are unfortunately not defined in a standard way in std::
This include is referenced by a new version of TMath.h.
As a result, TMath.h is back compatible with the previous version.
TMathBase.h is used in place of TMath.h in all the classes
that will go into the future miniCore library.
TMath.h and the TMath implementation will go into a new math sub-directory.
TString.h uses TMathBase.h instead of TMath.h.
As a result, it was necessary to include "TMath.h" in some classes
assuming that TMath was included via TString and using other functions
than the ones defined in TMathBase.h
----------------------------------------------------------------------
Revision
15672 -
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Modified
Mon Jul 3 16:10:46 2006 UTC (8 years, 6 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 76843 byte(s)
Diff to
previous 13282
from Axel:
Change the signature of SavePrimitive from
void SavePrimitive(ofstream &out, Option_t *option);
to
void SavePrimitive(ostream &out, Option_t *option = "");
With this change one can do, eg
myhist.SavePrimitive(std::cout);
WARNING: do rm -f tree/src/*.o
Revision
13271 -
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Modified
Thu Nov 17 13:17:55 2005 UTC (9 years, 2 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 76821 byte(s)
Diff to
previous 12629
From Andrei & Mihaela:
a diff containing the implementation of TGeoShape::Capacity. There are also
few other fixes (see below):
Mihaela:
New method:
Double_t TGeoShape::Capacity() const;
implemented for all supported shapes. The algorithms provide analytical computation of
shape capacity in [cm^3]. All algorithms are accurate with 2 exceptions:
- TGeoCtub : the formula is just an approximation due to the difficulties to integrate
over the phi angle in the general case.
- TGeoCompositeShape: the computation of the capacity is done by sampling, with an
accuracy of 1%.
Based on this method I extended the implementation of TGeoVolume::Weight(Double_t
precision, Option_t *option). The default value of option is now "va" meaning: verbose
+ analytical. Removing "a" from the default option performs computation of volume
weight using the old algorithm of sampling. I have checked the 2 ways of computing the
weight one against the other and they are consistent.
Andrei:
- fixed a memory leak related to TGeoShapeAssembly ownership
- fixed some tracking problems for assemblies (when the top volume was an assembly)
Revision
11785 -
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Modified
Fri May 13 16:20:38 2005 UTC (9 years, 8 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 75325 byte(s)
Diff to
previous 11488
From Mihaela Gheata:
a patch with some fixes in SavePrimitive:
- shapes have now unique pointer names
- matrices used in composite shapes get registered to TGeoManager
- fix in TGeoCompositeShape::SavePrimitive, added
TGeoBoolNode::SavePrimitive
Revision
11485 -
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Modified
Mon Apr 4 15:00:39 2005 UTC (9 years, 9 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 75255 byte(s)
Diff to
previous 11272
From Mihaela Gheata:
I attached the diffs for few fixes that I made for SavePrimitive:
- fix in TGeoCone::SavePrimitive
- Added support for gsposp in TGeoVolume (now works with ALICE geometry)
- fix in TGeoCombiTrans for correctly registering rotation component.
- modified TGeoManager::Export() to export geometry as C++ macro:
for file names ending with .root work as before
other extensions (e.g. .C) saves as C++ macro
Revision
11272 -
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Modified
Wed Mar 9 18:19:27 2005 UTC (9 years, 10 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 75255 byte(s)
Diff to
previous 11204
From Richard Maunder:
Changes to viewer infrastructure (TBuffer3D,TVirtualViewer3D) to
support:
i) Proper shape specific (sphere, tube, etc) descriptions in TBuffer3D
derived classes - c.f. abuse of raw tesselation blocks before.
ii) On demand filling of buffer sections as required by viewer.
iii) Support for local/master frame shapes descriptions & child object
rejection.
iv) Template/placed shapes ids - enabling viewer to detect/receive
common shapes once and just obtain the new position and id of the
duplicate.
Cleans up all producer (g3d/geom) code so no longer has an viewer
specific knowledge - Paint() methods replaced with
GetBuffer3D/FillBuffer3D methods which complete requested sections of
the buffer.
All viewer specific code now sits on the viewer implementation side of
TVirtualViewer3D. Added a TViewer3DPad class for performing the 3D draws
into pad. In future this should be merged with TView/TView3D possibly.
TBuffer3D is now stripped of functional code (aside from memory
management) and various viewer passback options there previously.
Enforced one way passing a const & to viewer.
Buffers (various types) are held as single static inside producer
function e.g. TGeoShape::GetBuffer3D (c.f. single generic buffer type
fetched from pad previously).
For g3d and geom shapes the top level geometry painter (TNode /
TGeoPainter) controlls painting process, requesting shapes to fill
buffer and passing to 3D viewer.
Exceptions are g3d's TPolyLine3D, TPolyMarker3D & TMarker3DBox. These
are 'standalone' shapes - no controlling 'painter' object. They still
implement Paint(), fill buffer and add to viewer directly.
3D viewer still held / created by pad - and pad has it's own viewer
object (TViewer3DPad).
NOTE:
1. Current scheme supports one 3D viewer only - pad, x3d or OpenGL. This
means that pad goes blank when x3d/OGL is spawned, and is updated again
when it is closed. To be revisited - need to support multiple viewers,
of multiple types - which implies explicit naming or pad controlling
enumeration.
2. OGL viewer now responds correct to modifications in pad, without
having to be reinvoked (as previously). x3d is still decoupled (as
previously) so does not rebuild - too difficult to get working.
Revision
11076 -
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Modified
Wed Feb 9 13:30:27 2005 UTC (9 years, 11 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 78814 byte(s)
Diff to
previous 11031
From Mihaela Gheata;
- divisions supporting SavePrimitive
- main SavePrimitive loop implemented at level of TGeoVolume
- user interface: TGeoVolume::SaveAs(const char *filename); having *MENU*
- can be called from the browser for any volume:
the resulting file will have a geometry starting with the selected
volume as TOP.
- should work with TPad::SavePrimitive(ofstream out, Option_t *option)
- not tested however
From Andrei:
I did some changes in TGeoCombiTrans to support a shared rotation matrix.
I also fixed a bug in TGeoTube::GetMakeRuntimeShape (and tube segment)
that produced wrong shapes in case one of the initial parameters was negative.
Revision
11028 -
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Modified
Thu Feb 3 11:40:39 2005 UTC (9 years, 11 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 78776 byte(s)
Diff to
previous 11002
From Andrei Gheata:
The diffs for the changes from Mihaela. They implement the SavePrimitive method for:
- all shapes
- materials, mixtures and media
- matrices
- TGeoVolume - just a first version
What is missing:
Divisions + manager metod to save:
- all geometry
- just the branch corresponding to one volume
The differences compared to g2root are that:
- when saving just a a branch just materials/media/matrices for that branch are created (module encapsulation)
- instead of creating objects with numerical arguments, the coresponding variables are defined and used.
e.g. instead of :
new TGeoBBox("name", 10.,20.,30); the generated code is:
dx = 10.;
dy = 20.;
dz = 30.;
pShape = new TGeoBBox("name", dx,dy,dz);
The diffs contain also 2 shapes with boundary-safe algorithms: TGeoPara and TGeoTrap
Revision
11002 -
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Modified
Fri Jan 28 10:01:04 2005 UTC (9 years, 11 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 77157 byte(s)
Diff to
previous 10952
From Andrei:
I attached the first big chunk of changes.
The methods changed are mostly the implementations of TGeoShape::DistFromInside/DistFromOutside for some specific shapes. The new algorithms are boundary error tolerant, giving the correct distance even if the point is on the wrong side of the boundary. The calling sequence remains un-changed. The affected shapes for now are: box, trd1, trd2, tube, tube seg, cone, cone seg, pcon, pgon. I will complete few remaining for the full description of ALICE next week (para + arb8 family: trap,gtra).
Revision
10952 -
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Modified
Wed Jan 19 13:19:34 2005 UTC (10 years ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 68856 byte(s)
Diff to
previous 10699
From Timur:
1. TGLTube replaced by TGLCylinder - generic class for tubes, cones,
segments and cuts (in theory, for polycones too). Tubes are drawn now as
strips (quad and triangle), real normals for tubes are calculated.
gl vertex arrays are used.
2. For each type of tube, I know the exact size of vertices arrays I need
- I don't need to use nsegments (because of real normals, we don't need
large tube segmentation to get smooth surfaces).
Revision
10699 -
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Modified
Tue Dec 7 14:24:57 2004 UTC (10 years, 1 month ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 66813 byte(s)
Diff to
previous 10662
From Andrei Gheata:
I attached some diffs as proposed by Matevz and Alja which made their
own GL-based TGeo viewer in GLED. The changes are just structural:
- lines/polygons filling splitted out from TGeoShape::Paint() as
TGeoShape::SetLinesAndPols(TBuffer3D *buff).
- Shapes can create and fill a new TBuffer3D with the new method:
TGeoShape::Make3DBuffer() in the local frame
They need this since they have their own geometry tree parsing algorithm
(not the same as in TGeoPainter::PaintNode()) with another
structure/matrix handling system. Basically they just need one buffer
per volume, reusing them since they attach them to TGeoVolume as user
data. Not quite bad idea: they create only once a limited number of
buffers that they re-use without re-filling...
Revision
10621 -
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Modified
Thu Nov 25 12:10:01 2004 UTC (10 years, 2 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 65384 byte(s)
Diff to
previous 10557
From Andrei and Mihaela Gheata:
New shape TGeoHype from Mihaela.
This patch contains all modifications in TGeo, additions in
g2root to adjust format of MakeHype(...) and a fix in TBuffer3D.cxx
(Paint("SAME")). Also Mihaela modified geodemo.C
The modifications (made by Timur probably) TGeoTube::Paint() for making
GL-like tubes are wrong so I temporary disabled them. The global matrix
filled to GL is wrongly retreived (+ it may come from other sources in
case of overlap drawing).
Revision
10498 -
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Modified
Mon Nov 8 09:56:24 2004 UTC (10 years, 2 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 64587 byte(s)
Diff to
previous 10313
From Andrei Gheata:
Change names of TGeo functions with confusing names
DistToIn -> DistFromOutside
DistToOut -> DistFromInside
It should be much less confusing since it specifies where the starting
point is supposed to be.
Revision
10313 -
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Modified
Fri Oct 15 15:30:50 2004 UTC (10 years, 3 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 64515 byte(s)
Diff to
previous 10100
From Andrei Gheata;
- cleanup of all obsolete methods related to the old 3D visualization in
TGeoPainter
- fix in color settings for TGeoPhysicalNode - minor, but touches most
shape.cxx files
- improved visible node counting - it is now automatic and verbose. By
default the visible depth is automatized for 10000 nodes (as before) but
calling gGeoManager->SetVisLevel(n) disables this and switches to old
style. It can be turned on to automatic state by calling
gGeoManager->SetMaxVisNodes(n) (which also updates the current view).
Limitation : nodes are not recount after setting volumes or branches
invisible unless a new Draw() is called.
Revision
9928 -
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Modified
Mon Sep 6 16:42:33 2004 UTC (10 years, 4 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 64523 byte(s)
Diff to
previous 9665
From Andrei
-SetBit(kIsReflection) in TGeoShape::paint when the object has a reflection matrix.
-Exploded view works again.
-Set TGeoVolume instead of TGeoShape when filling TBuffer3D
-Modify rootgeom.C ("R" problem). TGeoArb8 allowing definition of vertices in any order.
Revision
9665 -
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Modified
Tue Aug 3 16:01:19 2004 UTC (10 years, 5 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 64405 byte(s)
Diff to
previous 9311
From Olivier, Timur Pocheptsov , Andrei Gheata and Rene
Mega patch to introduce the new 3-d interface (to be described later).
The new interface has been tested with both X3D and OpenGL under Linux.
Being tested under Windows.
Note that several changes are expected in these classes (OpenGL in particular)
in the coming days.
Revision
9311 -
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Modified
Fri Jun 25 11:59:56 2004 UTC (10 years, 7 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 58523 byte(s)
Diff to
previous 8648
From Andrei Gheata:
- TGeoShape::PaintNext() removed from all shapes (for the new
visualization system to be introduced shortly).
The new mechanism is implemented in
TGeoPainter::PaintShape (uses gGeoManager as we discussed), but it also
affect some shapes (TGeoCompositeShape at least)
- New files: TGeoElement.h /.cxx representing a chemical element. This
is very helpful for the implementation of TFluka. Materials/mixtures can
be now built also based on this new class. An element table is kept
always transient in memory.
- Mihaela implemented the TGeoParaboloid shape: new files:
TGeoParaboloid.h/cxx.
Revision
8648 -
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Modified
Thu Apr 22 14:07:15 2004 UTC (10 years, 9 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 59379 byte(s)
Diff to
previous 8565
From Andrei Gheata:
- TGeoXtru navigation now fully implemented by Mihaela
- Improvements in the ray-tracing algorithm
- Added TGeoShape::GetNmeshVertices() to be used by visualization and by
the overlap checker in case of composite shapes (currently the checker
does not work with composites)
- I have created a new demo macro (see /tutorials/geodemo.C in the
attachment) to replace /tutorials/geoshapes.C. Functionality:
- all previous functionality of geoshapes.C
- new shapes examples added: TGeoTorus, TGeoXtru, TGeoCompositeShape
- can call rootgeom.C
- ray-tracing can be switched on/off
- comments can be switched on/off
- demonstrates alignment
Revision
8565 -
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Modified
Tue Apr 13 07:04:42 2004 UTC (10 years, 9 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 58827 byte(s)
Diff to
previous 7724
From Andrei Gheata:
- All shapes.cxx - added shape name in InspectShape() + some corrections
in error messages (Bjorn requirement)
- TGeoAtt.cxx - activity flag added (not yet taken into account by tracking)
- TGeoMaterial/Medium - added Cerenkov properties by Andreas (for FLUKA)
- TGeoVolume.h, TGeoManager.k - added *TOGGLE* 's
- TGeoPhysicalNode - possibility to align a physical node. One can
define a physical node according a path, then change its local
transformation matrix OR shape - the corresponding branch is decoupled
from the logical tree and a new trackable branch is created. A
post-alignment check for overlaps can be perfomed for the aligned node.
Revision
7713 -
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Modified
Wed Dec 10 15:31:23 2003 UTC (11 years, 1 month ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 57823 byte(s)
Diff to
previous 7671
From Andrei Gheata:
some changed files in TGeo improving the performance of
TGeant3 WITHROOT:
- safety was computed twice (both by TGeoManager::Safety() as well as
the shape algorithms called by TGeoManager->FindNextBoundary()). The
speed now with WITHROOT improves.
- few fixes in some shape algorithms related to boundary treatment (few
others to be done)
- Improved computation of normals
- Improved non-recursive algorithm of TGeoPgon::DistToOut()
- fix of some default value in all shape headers (0 replaced by kBig) to
allow range limited computation of DistToIn/Out - now working just for pgon.
Revision
7121 -
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Modified
Thu Aug 21 08:27:34 2003 UTC (11 years, 5 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 57401 byte(s)
Diff to
previous 7022
From Andrei Gheata:
- computation of normals to all primitive shapes, except TGeoCompositeShape
- improved TGeoTorus algorithms
- ray tracing feature : works as TGeoVolume::Draw() except that the
volume is ray-traced according to current visualization settings. All
features from a normal drawing are preserved : picking, zooming,
rotating,... The time for producing the ray-traced image scales with the
surface of the current pad (in pixels) and to the number of visible
nodes on screen. The current image can be clipped with any other shape,
defined in the reference frame of the current drawn volume. It works like:
TGeoTubeSeg *clip = new TGeoTubeSeg(params...);
gGeoManager->SetClippingShape(clip);
someVolume->Raytrace();
...
gGeoManager->SetClipping(kFALSE/kTRUE); to disable/enable clipping.
If the clipping shape is changed, the old one is automatically deleted.
Revision
7022 -
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Modified
Thu Jul 31 20:19:33 2003 UTC (11 years, 5 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 53123 byte(s)
Diff to
previous 6725
From Andrei GHeata:
- TGeoManager::FindNormal(Bool_t forward=kTRUE) = global algorithm for
finding the normal to the next/previous crossed surface, from the
current global point/direction. The current point does not necessary
need to be close to the surface, and the normal direction is always
returned so that its dot product with the current direction is positive
defined. One can get the normal after its computation with:
Double_t *TGeoManager::GetNormal()
- Normal computation algorithms for box, arb8, trap, gtra, cone in the
corresponding shape classes.
- New primitive shape fully implemented, from visualization to
computation of distances (except the normal computation, missing also
for several other shapes). Class name: TGeoTorus, representing a torus
segment with :
- R - radius of the circle representing the torus axis
- Rmin - inner radius (like a donut having a hole in the middle)
- Rmax - outer radius (Rmin < Rmax < R)
- Phi1 - start phi
- Dphi - phi range
- Some unused obsolete methods removed from the TGeoShape class.
- modifications in TGeoIdentity default ctor to initialize gGeoIdentity
- TGeoMaterial::IsMixture(),
TGeoMaterial::FindDuplicateMaterial(const TGeoMaterial *mat)
- several other minor changes
Revision
6725 -
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Modified
Tue Jun 17 09:13:56 2003 UTC (11 years, 7 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 52577 byte(s)
Diff to
previous 6304
New version of the geometry package from Andrei/Mihaela
TGeoArb8 - pictures added
TGeoBBox - doc, pictures
TGeoCache - id array for physical nodes
TGeoCompositeShape - doc added
TGeoCone - pictures, bug fiz in Z divisions, correction in 'safety'
TGeoEltu - pict. added
TGeoManager - registration of matrices, unique volume id's
TGeoMatrix - copy ctors., = and * operators, improvements, extensive doc.
TGeoNode - doc added
TGeoPara - pictures
TGeoPatternFinder - registration of pattern matrices
TGeoPcon - fix in Z divisions, fix in 'safety', pictures
TGeoPgon - same as Pcon
TGeoShape - doc added
TGeoSphere, Trd1,2, Tube - pictures added
TGeoVolume - doc updated
TGeoChecker - doc., improvement of extrusions checker by Mihaela
TGeoPainter - does not create polygons array in X3dBuffers when drawing
in pad
TGeoTrack - compilation warnings fixed
Revision
6083 -
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Modified
Mon Feb 10 17:23:14 2003 UTC (11 years, 11 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 52310 byte(s)
Diff to
previous 6068
From Andrei:
- new files TGeoOverlap.h/cxx in geompainter directory. Contains one
base class and 2 derived, describing overlaps. The CheckOverlaps()
methods in TGeoManager and TGeoVolume fills a list of these objects
which is held by TGeoManager class and appears in the browser as
"Illegal overlaps". The elements in this list are ordered according the
overlapping distance, big comes first and extrusions before node
overlaps. Double-clicking triggers drawing. Points in the
overlapping/extruding region are paint in red, while the 2 candidates in
bleu/green. The list of overlaps is dynamic and changes whenever a check
is done per volume.
- volumes with invalid shapes post a warning (see ATLAS)
Revision
6068 -
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Modified
Fri Feb 7 13:46:48 2003 UTC (11 years, 11 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 52230 byte(s)
Diff to
previous 6038
New version from Andrei and Mihaela:
- several implementations of method Safety for shapes
- few bug fixes in safety computation (phi segmented shapes)
- volumes have now an unique ID that you can get with GetNumber()
- Mihaela implemented an overlap checker that can be called either for
all geometry :
TGeoManager::CheckOverlaps(Double_t ovlp=0.1) or just for a given
volume. OVLP is the lower overlapping limit. The checker looks for the
following errors in the geometry definition :
1 - nodes extruding their mother - can be visualised with
TGeoManager::DrawExtrusion(char *mother, char *node) which draws mother
in blue and extruding daughter in red
2 - ONLY brothers overlapping to each other - can be visualized with
TGeoManager::DrawOverlap(char *volume, char *node1, char *node2) - node1
will appear in red and node2 in blue.
These methods can be called only after CheckOverlaps() that prints the
list of overlaps. They are all in the context menu of both TGeoVolume
and TGeoManager.
Revision
6038 -
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Modified
Fri Jan 31 16:38:23 2003 UTC (11 years, 11 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 51761 byte(s)
Diff to
previous 5993
New version of the geometry package from Andrei:
- new algorithms for computing safety for tubes, cones, pcon
- TGeoChecker::CheckPoint() modified so that a "safety ball" is drawn
when one uses it. - global tracking modified such that the distances for most of the
shapes (except pgon and arb8) are computed only if the safety to these
shapes is smaller than a refference value.
There is one limitation in case global safety is computed : the value
fSafety hold by TGeoManager does not represent the real safety, but the
minimum safety value among those calculated for the checked nodes.
Therefore if some node is "backwards" w.r.t the current direction, it
will be ignored in safety computation. I do not know if this affects
tracking, but I guess not. In short words, the global safety depends on
the current direction - for instance after just exiting a volume it
might happen that safety is not a very small value.
Revision
5972 -
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Modified
Thu Jan 23 14:25:37 2003 UTC (12 years ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 52745 byte(s)
Diff to
previous 5946
From Andrei:
- all shape classes : changed the prototype for Safety() method.
Eliminated validity checking in Divide() methods that are now globally
handled by TGeoVolume::Divide(). Added methods
TGeoShape::GetAxisName/Range(Int_t iaxis) which are used by the new
global division mechanism.
- safety for TGeoTrap now computed (pcon, pgon not yet)
- TGeoVolume : eliminated unnecesarry Divide() prototypes. The new
Divide() prototype is backwards compatible (old macros works with it)
but supports an option in order to allow all G3 division types. More
description in TGeoVolume::Divide().
- TGeoManager : Only one prototype for G3-like divisions left,
supporting all G3 options and also being able to assign to the division
volumes a medium different than the one of the divided volume. New
FindNode(x,y,z) implemented. New IsSameLocation(x,y,z) with the same
functionality as GINVOL.
Revision
5946 -
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Modified
Mon Jan 20 14:35:48 2003 UTC (12 years ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 53033 byte(s)
Diff to
previous 5883
Several updates to the geometry pacjage by Andrei:
TGeoManager :
- added getter for current direction;
- dummy cache option by default
TGeoNodeOffset
- set the name for parametrized divisions; minor fix in allocating the
space for the name (safer now)
TGeoPatternFinder :
- the getter for the matrix of a divided node will return the updated
matrix (before one had to do TGeoNodeOffset::cd() first, now
TGeoNodeOffset::GetMatrix() does this in one go)
Shape classes :
- protection for wrong division range slightly modified
Revision
5883 -
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Modified
Sun Jan 12 14:49:32 2003 UTC (12 years ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 52788 byte(s)
Diff to
previous 5848
New version of TGeo classes from Andrei:
-TGeoManager - added G3-like prototypes for building geometry
-TGeoPatternFinder - added parameters of a division (fStart, fStep, fEnd)
-TGeoVolume - fix in TGeoVolumeMulti::AddVolume() to update existing
nodes for all volumes in list
several shapes supporting divisions - using TGeoVolumeMulti for divisions
-TGeoVoxelFinder - fixed dtor
Revision
5406 -
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Modified
Tue Oct 8 16:17:49 2002 UTC (12 years, 3 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 58140 byte(s)
Diff to
previous 5354
new version of the geometry package from Andrei:
- bug fix in the destructor of TGeoPatternCylPhi
- several modifications in the default constructors of shapes.
- several corrections and "v" feature added to I/O
- removed base class for finders
Now you can save voxels and retreive them with no problem. You can use :
gGeoManager->Export("filename", "", "v") to do that. The size of files
without/with voxelization are :
Exp no voxels saved voxels saved
ALICE 404227 719703
CMS 550440 1275590
ATLAS 1858198 3335166
Be careful, the files TGeoFinder.h and TGeoFinder.cxx have been removed.
Suggest doing:
rm geom/src/*.o geom/src/G__*
Revision
5354 -
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Modified
Fri Sep 27 16:16:06 2002 UTC (12 years, 3 months ago) by
brun
Original Path:
trunk/geom/src/TGeoCone.cxx
File length: 58079 byte(s)
Diff to
previous 4918
New version of the geometry package by Andrea & Mihaela Gheata
New features:
-I/O for all geometry classes. For example, to save/restore a geometry structure,
TFile f("mygeom.root","recreate");
gGeoManager->Write("mygeom");
and to read it back;
TFile f("mygeom.root");
f.Get("myGeom");
gGeoManager->CloseGeometry();
-Composite shapes fully implemented (no visualisation yet).
A composite shape is built out of basic shapes and transformations via
a simple formula mechanism, eg assuming a TGeoTube "tub1" and a TGeoMatrix "r1",
we can build a composite shape with:
TGeoCompositeShape *comp = new TGeoCompositeShape("comp",formula); where
char* formula="tub1+tub1:r1"
This will create the union of a tube with itself rotated.
The operators recognized by the geometry formula parser are "+","-","*"
for union, subtraction and intersection respectively. The colon ":" can be
used to specify a transformation for a given component.
-The voxelisation in cylindrical coordinates added as an optional optimisation
algorithm.
-Some bug fixes and several improvements in the tracking-related algorithms.
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