Combinatorial Solid Geometry example.
Stripped down to demonstrate EVE shape-extracts.
void csgdemo ()
{
bar->AddButton(
"How to run ",
"help()",
"Instructions ");
bar->AddButton(
"Union ",
"s_union()",
"A + B ");
bar->AddButton(
"Intersection ",
"s_intersection()",
"A * B ");
bar->AddButton(
"Difference ",
"s_difference()",
"A - B ");
bar->AddButton(
"Complex composite",
"complex_1()",
"(A * B) + (C - D)");
}
void MakePicture()
{
}
void s_union()
{
gROOT->GetListOfCanvases()->Delete();
TCanvas *
c =
new TCanvas(
"composite shape",
"Union boolean operation", 700, 1000);
MakePicture();
pt->
AddText(
"----- It's an example of boolean union operation : A + B");
pt->
AddText(
"----- A == part of sphere (5-175, 0-340), B == pgon");
}
void s_intersection()
{
gROOT->GetListOfCanvases()->Delete();
TCanvas *
c =
new TCanvas(
"composite shape",
"Intersection boolean operation", 700, 1000);
MakePicture();
pt->
AddText(
"----- Here is an example of boolean intersection operation : A * B");
pt->
AddText(
"----- A == sphere (with inner radius non-zero), B == box");
}
void s_difference()
{
gROOT->GetListOfCanvases()->Delete();
TCanvas *
c =
new TCanvas(
"composite shape",
"Difference boolean operation", 700, 1000);
MakePicture();
pt->
AddText(
"----- It's an example of boolean difference: A - B");
pt->
AddText(
"----- A == part of sphere (0-180, 0-270), B == partial torus (45-145)");
}
void complex_1()
{
gROOT->GetListOfCanvases()->Delete();
MakePicture();
pt->
AddText(
"----- (sphere * box) + (sphere - box) ");
}
{
memcpy(&
line[0], datamember, strlen(datamember));
char number[20];
sprintf(number, "%5.2f", value);
memcpy(&
line[12], number, strlen(number));
}
{
memcpy(&
line[0], datamember, strlen(datamember));
char number[20];
sprintf(number, "%5i", value);
memcpy(&
line[12], number, strlen(number));
}
{
if (!pave || !pf) return;
AddText(pave,
"fNdiv",finder->
GetNdiv(),
"number of divisions");
AddText(pave,
"fStart",finder->
GetStart(),
"start divisioning position");
AddText(pave,
"fStep",finder->
GetStep(),
"division step");
}
void raytrace() {
if (!painter) return;
}
void help() {
new TCanvas(
"chelp",
"Help to run demos",200,10,700,600);
welcome->
AddText(
"Welcome to the new geometry package");
hdemo->
AddText(
"- Demo for building TGeo composite shapes");
}
R__EXTERN TGeoManager * gGeoManager
R__EXTERN TSystem * gSystem
virtual void SetFillColor(Color_t fcolor)
Set the fill area color.
virtual void SetLineColor(Color_t lcolor)
Set the line color.
virtual void SetTextAlign(Short_t align=11)
Set the text alignment.
virtual void SetTextColor(Color_t tcolor=1)
Set the text color.
virtual void SetTextFont(Font_t tfont=62)
Set the text font.
virtual void SetTextSize(Float_t tsize=1)
Set the text size.
A Control Bar is a fully user configurable tool which provides fast access to frequently used operati...
Class handling Boolean composition of shapes.
The manager class for any TGeo geometry.
TVirtualGeoPainter * GetGeomPainter()
Make a default painter if none present. Returns pointer to it.
void CloseGeometry(Option_t *option="d")
Closing geometry implies checking the geometry validity, fixing shapes with negative parameters (run-...
TGeoVolume * MakeBox(const char *name, TGeoMedium *medium, Double_t dx, Double_t dy, Double_t dz)
Make in one step a volume pointing to a box shape with given medium.
void SetTopVolume(TGeoVolume *vol)
Set the top volume and corresponding node as starting point of the geometry.
void SetNsegments(Int_t nseg)
Set number of segments for approximating circles in drawing.
Base class describing materials.
virtual void RegisterYourself()
Register the matrix in the current manager, which will become the owner.
Media are used to store properties related to tracking and which are useful only when using geometry ...
Base finder class for patterns.
TGeoVolume * GetVolume() const
Double_t GetStart() const
virtual void DefineSection(Int_t snum, Double_t z, Double_t rmin, Double_t rmax)
Defines z position of a section plane, rmin and rmax at this z.
Base abstract class for all shapes.
virtual const char * GetAxisName(Int_t iaxis) const =0
Class describing translations.
TGeoVolume, TGeoVolumeMulti, TGeoVolumeAssembly are the volume classes.
TGeoShape * GetShape() const
virtual void Draw(Option_t *option="")
draw top volume according to option
virtual void AddNode(TGeoVolume *vol, Int_t copy_no, TGeoMatrix *mat=0, Option_t *option="")
Add a TGeoNode to the list of nodes.
virtual void SetName(const char *name)
Set the name of the TNamed.
virtual const char * GetName() const
Returns name of object.
Mother of all ROOT objects.
A Pave (see TPave) with text, lines or/and boxes inside.
virtual TText * AddText(Double_t x1, Double_t y1, const char *label)
Add a new Text line to this pavetext at given coordinates.
virtual void Draw(Option_t *option="")
Draw this pavetext with its current attributes.
virtual void SetAllWith(const char *text, Option_t *option, Double_t value)
Set attribute option for all lines containing string text.
virtual int Load(const char *module, const char *entry="", Bool_t system=kFALSE)
Load a shared library.
Base class for several text objects.
Abstract class for geometry painters.
virtual void SetRaytracing(Bool_t flag=kTRUE)=0
void box(Int_t pat, Double_t x1, Double_t y1, Double_t x2, Double_t y2)
static constexpr double bar