From: mfranz <mfranz>
Date: Sun, 3 Jun 2007 18:17:05 +0000 (+0000)
Subject: Syd ADAMS:
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=d11e18f9a77e23b673c60c5a1723514b829ad625;p=flightgear.git

Syd ADAMS:

"normalize the radar x and y-shift , 0 to 1.0 based on
/instruments/radar/range to make animation simpler"
---

diff --git a/src/AIModel/AIBase.cxx b/src/AIModel/AIBase.cxx
index d837f5699..4c8a24eaa 100644
--- a/src/AIModel/AIBase.cxx
+++ b/src/AIModel/AIBase.cxx
@@ -306,8 +306,9 @@ void FGAIBase::unbind() {
 }
 
 double FGAIBase::UpdateRadar(FGAIManager* manager) {
-   double radar_range_ft2 = fgGetDouble("/instrumentation/radar/range");
    bool force_on = fgGetBool("/instrumentation/radar/debug-mode", false);
+   double radar_range_nm = fgGetDouble("/instrumentation/radar/range");
+   double radar_range_ft2 = radar_range_nm;
    radar_range_ft2 *= SG_NM_TO_METER * SG_METER_TO_FEET * 1.1; // + 10%
    radar_range_ft2 *= radar_range_ft2;
 
@@ -392,8 +393,8 @@ double FGAIBase::UpdateRadar(FGAIManager* manager) {
      // horiz_offset += user_yaw; // FIXME: WHY WOULD WE WANT TO ADD IN SIDE-SLIP HERE?
 
      // calculate values for radar display
-     y_shift = range * cos( horiz_offset * SG_DEGREES_TO_RADIANS);
-     x_shift = range * sin( horiz_offset * SG_DEGREES_TO_RADIANS);
+     y_shift = (range * cos( horiz_offset * SG_DEGREES_TO_RADIANS)) / radar_range_nm;
+     x_shift = (range * sin( horiz_offset * SG_DEGREES_TO_RADIANS)) / radar_range_nm;
      rotation = hdg - user_heading;
      if (rotation < 0.0) rotation += 360.0;
      ht_diff = altitude_ft - user_altitude;