In the process of changing, adding and removing files the last few years

[flightgear.git] / src / Cockpit / hud_rwy.cxx

diff --git a/src/Cockpit/hud_rwy.cxx b/src/Cockpit/hud_rwy.cxx
index 2fd326a6f43e09aecff9001df6a12bfa9b8cfaec..c1a938a9fea4f058dcbaa2c6976c3a7b50699f48 100644 (file)
--- a/src/Cockpit/hud_rwy.cxx
+++ b/src/Cockpit/hud_rwy.cxx
@@ -193,7 +193,7 @@ void runway_instr::get_rwy_points(sgdVec3 *points3d) {
        center = currentCenter;
 }
 
-bool runway_instr::drawLine(sgdVec3 a1, sgdVec3 a2, sgdVec3 point1, sgdVec3 point2) {
+bool runway_instr::drawLine(const sgdVec3& a1, const sgdVec3& a2, const sgdVec3& point1, const sgdVec3& point2) {
        sgdVec3 p1, p2;
        sgdCopyVec3(p1, point1);
        sgdCopyVec3(p2, point2);
@@ -254,7 +254,7 @@ bool runway_instr::drawLine(sgdVec3 a1, sgdVec3 a2, sgdVec3 point1, sgdVec3 poin
     return (p1Valid && p2Valid);
 }
 
-void runway_instr::boundPoint(sgdVec3 v, sgdVec3 m) {
+void runway_instr::boundPoint(const sgdVec3& v, sgdVec3& m) {
        double y = v[1];
        if(m[1] < v[1]) {
                y = location.bottom;
@@ -279,7 +279,7 @@ void runway_instr::boundPoint(sgdVec3 v, sgdVec3 m) {
        }
 }
 
-bool runway_instr::boundOutsidePoints(sgdVec3 v, sgdVec3 m) {
+bool runway_instr::boundOutsidePoints(sgdVec3& v, sgdVec3& m) {
        bool pointsInvalid = (v[1]>location.top && m[1]>location.top) ||
                               (v[1]<location.bottom && m[1]<location.bottom) ||
                                           (v[0]>location.right && m[0]>location.right) ||