Combinatorial Solid Geometry example.
Stripped down to demonstrate EVE shape-extracts.
TCanvas *create_canvas(
const char *title,
bool divide =
true)
{
} else {
c =
new TCanvas(
"csg_canvas", title, 700, 1000);
}
if (divide) {
gPad->SetPad(0, 0, 1, 0.4);
gPad->SetPad(0, 0.4, 1, 1);
}
}
void MakePicture()
{
if (is_raytracing != raytracing) {
}
}
void s_union()
{
auto c = create_canvas(
"Union boolean operation");
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()
{
auto c = create_canvas(
"Intersection boolean operation");
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()
{
auto c = create_canvas(
"Difference boolean operation");
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 s_complex()
{
auto c = create_canvas(
"A * B - C");
MakePicture();
pt->
AddText(
"----- (sphere * box) + (sphere - box) ");
}
void raytrace()
{
if (drawn)
printf("raytrace %d\n", raytracing);
}
}
void help()
{
auto c = create_canvas(
"Help to run demos",
false);
welcome->
AddText(
"Welcome to the new geometry package");
hdemo->
AddText(
"- Demo for building TGeo composite shapes");
hdemo->
AddText(
" .... s_union() : Union boolean operation");
hdemo->
AddText(
" .... s_difference() : Difference boolean operation");
hdemo->
AddText(
" .... s_intersection() : Intersection boolean operation");
hdemo->
AddText(
" .... s_complex() : Combination of (A * B) + (C - D)");
}
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",
"s_complex()",
"(A * B) + (C - D)");
bar->
AddButton(
"RAY-TRACE ON/OFF",
"raytrace()",
"Toggle ray-tracing mode");
}
Option_t Option_t TPoint TPoint const char text
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...
void Show()
Show control bar.
void AddButton(TControlBarButton *button)
Add button.
void SetVisRaytrace(Bool_t flag=kTRUE)
Composite shapes are Boolean combinations of two or more shape components.
The manager class for any TGeo geometry.
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.
TGeoVolume * GetTopVolume() const
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 ...
virtual void DefineSection(Int_t snum, Double_t z, Double_t rmin, Double_t rmax)
Class describing translations.
TGeoVolume, TGeoVolumeMulti, TGeoVolumeAssembly are the volume classes.
virtual TGeoNode * AddNode(TGeoVolume *vol, Int_t copy_no, TGeoMatrix *mat=nullptr, Option_t *option="")
Add a TGeoNode to the list of nodes.
void Draw(Option_t *option="") override
draw top volume according to option
Bool_t IsRaytracing() const
Check if the painter is currently ray-tracing the content of this volume.
virtual void SetName(const char *name)
Set the name of the TNamed.
virtual void Clear(Option_t *="")
virtual TObject * FindObject(const char *name) const
Must be redefined in derived classes.
TObject * FindObject(const char *name) const override
Search if object named name is inside this pad or in pads inside this pad.
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 SetAllWith(const char *text, Option_t *option, Double_t value)
Set attribute option for all lines containing string text.
void Draw(Option_t *option="") override
Draw this pavetext with its current attributes.
virtual int Load(const char *module, const char *entry="", Bool_t system=kFALSE)
Load a shared library.
Base class for several text objects.
void box(Int_t pat, Double_t x1, Double_t y1, Double_t x2, Double_t y2)