HowTo play with geometry/look at the specific subdetector

First I had a look at the script evd, which we usually run as
evd [file name]

The part concerning Geometry manager is:

    mod talk GeometryManager
       DetectorMenu
         enableAll set true
       exit
    exit

So, we try to enable _all_ detector components for the Event Display.

Let us try to run evd.exe manually

evd.exe
AC++>     mod talk GeometryManager
GeometryManager> show
Current value of item(s) in the "GeometryManager" module:

      Value of parmSetName for module GeometryManager is UNKN
      Value of verbose for module GeometryManager is false
      Value of production for module GeometryManager is false
      Current value of items on the "DetectorMenu" menu:
            Value of enableB4 for module GeometryManager is false
            Value of enableBeamBox for module GeometryManager is false
            Value of enableSimpleSvx for module GeometryManager is false
            Value of enableSvx for module GeometryManager is true
            Value of enableCot for module GeometryManager is true
            Value of enableMuon for module GeometryManager is true
            Value of enableCalor for module GeometryManager is true
            Value of enableClc for module GeometryManager is false
            Value of enableTof for module GeometryManager is false
            Value of enableStripChamber for module GeometryManager is true
            Value of enablePassive for module GeometryManager is false
            Value of enableBeampipeC for module GeometryManager is false
            Value of enableBeampipe for module GeometryManager is false
            Value of enableCPR for module GeometryManager is true
            Value of enableAll for module GeometryManager is false
      Current value of items on the "SiliconGeometryMenu" menu:
            Value of AlignmentSource for module GeometryManager is none
            Value of BuildPassive for module GeometryManager is false
      Current value of items on the "Cot" menu:
            Value of run1CTCGeometry for module GeometryManager is false
            Value of run1CTCData for module GeometryManager is true
      Current value of items on the "MuonGeometryMenu" menu:
            Value of CMPGeometry for module GeometryManager is true
            Value of CMUGeometry for module GeometryManager is true
            Value of CMXGeometry for module GeometryManager is true
            Value of IMUGeometry for module GeometryManager is false
      Current value of items on the "PrintMenu" menu:
            Value of printSvx for module GeometryManager is false
            Value of printCot for module GeometryManager is false
            Value of printMuon for module GeometryManager is false
            Value of printCalor for module GeometryManager is false
            Value of printStripChamber for module GeometryManager is false
            Value of printCPR for module GeometryManager is false
            Value of printAll for module GeometryManager is false
            Value of printTree for module GeometryManager is false
      Value of uniformField for module GeometryManager is false
      Value of Bfield for module GeometryManager is 14.116

GeometryManager>

then

GeometryManager>        DetectorMenu

GeometryManager/DetectorMenu>          enableAll set true

GeometryManager/DetectorMenu>        exit

I set true for showing all detector subsystems, but some of them have
internal structure(subdetectors) with their own flags. So I did:

GeometryManager>        MuonGeometryMenu

GeometryManager/MuonGeometryMenu>          CMPGeometry set false

GeometryManager/MuonGeometryMenu>          CMUGeometry set false

GeometryManager/MuonGeometryMenu>          CMXGeometry set false

GeometryManager/MuonGeometryMenu>          IMUGeometry set true

GeometryManager/MuonGeometryMenu>        exit

GeometryManager> exit

AC++>

to see IMU geometry.

Ok, then I talked to DHInput:

AC++> talk DHInput

DHInput> input file /cdf/scratch/loginov/data/ab01bb64.005bphys

DHInput> exit

then I run EventDisplay

root
begin(1)

I decided to look only at the muon geometry(see help pages for further
explanations)
so I issued the following command:

root [1] TCdfDisplay* d = new TCdfDisplay("MUON",TEdGeometry::MUON);

Here is a sample picture of the IMU geometry

If you want to changes visibilities of some detector components,
choose "Inspect" menu, then go to "Start Browser", click "root", then
click "Geometries", "cdf"(or any Geometry you've created - SVX, MUON, CLC, CLC_SVX),
"Nodes", "cdfDetector".
You will see a list of nodes. When clicking with the RIGHT mouse button, you'll
get pop-up menu, choose SetVisibility option to set visibility for the detector
component.

*-*-*-*-*-*-*Set visibility for this node and its sons *-*-*-*-*--*-*-*-*
*-*          =========================================
*-*  visibility = 3  node is drawn and its sons are drawn
*-*  visibility = 2  node is not drawn but its sons are drawn
*-*  visibility = 1  (default) node is drawn
*-*  visibility = 0  node is not drawn
*-*  visibility = -1 node is not drawn. Its sons are not drawn
*-*  visibility = -2 node is drawn. Its sons are not drawn
*-*  visibility = -3 Only node leaves are drawn
*-*  visibility = -4 Node is not drawn. Its immediate sons are drawn
*-*
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

For example, if you want to see only CMU muon detector, 
1.set visibility for cdfDetector -1,
2.set visibility for cdfDetector  0,
3.set visibility for Muon Container -3.

Make the picture to be updated - for example, click "Next".

Run evd and have a look at the help
CDF ED Manager -> Help -> CDF 3D
for run-time information how to play with geometry.