Web UI G-Meter uses mySituation min/max G Load.

main/managementinterface.go

@@ -482,6 +482,21 @@ func handleCageAHRS(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func handleResetGMeter(w http.ResponseWriter, r *http.Request) {
+	// define header in support of cross-domain AJAX
+	setNoCache(w)
+	w.Header().Set("Content-Type", "text/plain")
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+	w.Header().Set("Access-Control-Allow-Method", "GET, POST, OPTIONS")
+	w.Header().Set("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept")
+
+	// For an OPTION method request, we return header without processing.
+	// This ensures we are recognized as supporting cross-domain AJAX REST calls.
+	if r.Method == "POST" {
+		ResetAHRSGLoad()
+	}
+}
+
 func doRestartApp() {
 	time.Sleep(1)
 	syscall.Sync()
@@ -731,6 +746,7 @@ func managementInterface() {
 
 	http.HandleFunc("/orientAHRS", handleOrientAHRS)
 	http.HandleFunc("/cageAHRS", handleCageAHRS)
+	http.HandleFunc("/resetGMeter", handleResetGMeter)
 
 	http.HandleFunc("/deletelogfile", handleDeleteLogFile)
 	http.HandleFunc("/downloadlog", handleDownloadLogRequest)

web/js/main.js

@@ -17,6 +17,7 @@ var URL_RESTARTAPP      = "http://" + URL_HOST_BASE + "/restart";
 var URL_DEV_TOGGLE_GET  = "http://" + URL_HOST_BASE + "/develmodetoggle";
 var URL_AHRS_ORIENT     = "http://" + URL_HOST_BASE + "/orientAHRS";
 var URL_AHRS_CAGE       = "http://" + URL_HOST_BASE + "/cageAHRS";
+var URL_GMETER_RESET    = "http://" + URL_HOST_BASE + "/resetGMeter";
 var URL_DELETELOGFILE   = "http://" + URL_HOST_BASE + "/deletelogfile";
 var URL_DOWNLOADLOGFILE = "http://" + URL_HOST_BASE + "/downloadlog";
 var URL_DOWNLOADDB      = "http://" + URL_HOST_BASE + "/downloaddb";

web/plates/js/ahrs.js

@@ -143,7 +143,7 @@ AHRSRenderer.prototype = {
     }
 };
 
-function GMeterRenderer(locationId, plim, nlim) {
+function GMeterRenderer(locationId, plim, nlim, resetCallback) {
     this.plim = plim;
     this.nlim = nlim;
     this.nticks = Math.floor(plim+1) - Math.floor(nlim) + 1;
@@ -215,7 +215,7 @@ function GMeterRenderer(locationId, plim, nlim) {
     reset.text('RESET').cx(0).cy(0).addClass('text');
     reset.on('click', function() {
         reset.animate(200).rotate(20, 0, 0);
-        this.reset();
+        resetCallback();
         reset.animate(200).rotate(0, 0, 0);
     }, this);
 }
@@ -235,19 +235,13 @@ GMeterRenderer.prototype = {
         }
     },
 
-    update: function (g) {
+    update: function (g, gmin, gmax) {
         this.g = g;
-        this.max = g > this.max ? g : this.max;
-        this.min = g < this.min ? g : this.min;
+        this.min = gmin;
+        this.max = gmax;
 
         this.pointer_el.animate(50).rotate((g-1)/this.nticks*360, 0, 0);
         this.max_el.animate(50).rotate((this.max-1)/this.nticks*360, 0, 0);
         this.min_el.animate(50).rotate((this.min-1)/this.nticks*360, 0, 0);
-    },
-
-    reset: function() {
-        this.g   = 1;
-        this.max = 1;
-        this.min = 1;
     }
 };

web/plates/js/gps.js

@@ -175,7 +175,7 @@ function GPSCtrl($rootScope, $scope, $state, $http, $interval) {
             if ($scope.ahrs_gload > 360) {
                 $scope.ahrs_gload = "--";
             } else {
-                gMeter.update(situation.AHRSGLoad);
+                gMeter.update(situation.AHRSGLoad, situation.AHRSGLoadMin, situation.AHRSGLoadMax);
             }
 
             if (situation.AHRSTurnRate > 360) {
@@ -204,7 +204,7 @@ function GPSCtrl($rootScope, $scope, $state, $http, $interval) {
         }
         if (situation.AHRSStatus & 0x02) {
             if (statusIMU.classList.contains("off")) {
-                setTimeout(gMeter.reset(), 1000);
+                setTimeout($scope.GMeterReset, 1000);
             }
             statusIMU.classList.remove("off");
             statusIMU.classList.add("on");
@@ -357,7 +357,15 @@ function GPSCtrl($rootScope, $scope, $state, $http, $interval) {
         return caging;
     };
 
-    var gMeter = new GMeterRenderer("gMeter_display", 4.4, -1.76);
+    $scope.GMeterReset = function() {
+        $http.post(URL_GMETER_RESET).then(function (response) {
+            // do nothing
+        }, function (response) {
+            // do nothing
+        });
+    };
+
+    var gMeter = new GMeterRenderer("gMeter_display", 4.4, -1.76, $scope.GMeterReset);
 
     // GPS Controller tasks
     connect($scope); // connect - opens a socket and listens for messages