From ff2564d2017280ee6e438d12c7e0bb2f1de8e3b8 Mon Sep 17 00:00:00 2001
From: Mehulkumar Shiroya <m.shiroya@gsi.de>
Date: Fri, 19 Nov 2021 16:21:25 +0100
Subject: [PATCH] Corrects STS v21e geometry version
Change in tranformation from global origin (centre of magnet) to local origin of sts (last station) to a 59.5cm shift.
Front face of sts from a target placed at 44cm is now 1.6 cm.
---
macro/sts/geometry/create_stsgeo_v21e.C | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/macro/sts/geometry/create_stsgeo_v21e.C b/macro/sts/geometry/create_stsgeo_v21e.C
index 0dfc890f63..63c82167ce 100644
--- a/macro/sts/geometry/create_stsgeo_v21e.C
+++ b/macro/sts/geometry/create_stsgeo_v21e.C
@@ -805,8 +805,8 @@ void create_stsgeo_v21e(const char* geoTag = "v21e")
// TGeoTranslation* stsTrans = new TGeoTranslation(0., 0., stsPosZ);
- // to make translation from the second STS station (Reason: Origin point{x=0, y=0, z=0} is taken from the last sts station.)
- TGeoTranslation* stsTrans = new TGeoTranslation(0., 0., (statPos[13] - statPos[0]));
+ // to make translation to the center of magnet (Reason: Origin point{x=0, y=0, z=0} is taken from the last sts station.)
+ TGeoTranslation* stsTrans = new TGeoTranslation(0., 0., 59.5);
top->AddNode(sts, 1, stsTrans);
top->GetShape()->ComputeBBox();
cout << endl << endl;
@@ -825,7 +825,7 @@ void create_stsgeo_v21e(const char* geoTag = "v21e")
sts->Export(geoFileName); // an another way of writing the stsvolume placement
TFile* geoFile = new TFile(geoFileName, "UPDATE");
- TGeoTranslation* sts_volume_placement = new TGeoTranslation("sts_trans", 0., 0., (statPos[13] - statPos[0]));
+ TGeoTranslation* sts_volume_placement = new TGeoTranslation("sts_trans", 0., 0., 59.5);
sts_volume_placement->Write();
//*/
cout << endl;
--
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