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speedo.js
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speedo.js
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// Jeff Moore, 1/19/2016
// Speedometer.
//"use strict";
// Configuration variables
var config_mirrorHud = 0; // show mirror-image
var config_fps = 3;
var config_posRefreshRate = 100; // ms
var config_geocodeRefreshRate = 15000; // ms
var config_textSizeA = 0.20; // percent of screen space
var config_textSizeB = 0.13;
var config_textSizeC = 0.08;
var config_textSizeD = 0.06;
var config_textFontA = "Josefin Sans";
var config_textFontB = "Josefin Sans";
var config_textFontC = "Josefin Sans";
var config_speedocircx = 0.50; //percents of screen space
var config_speedocircy = 0.40;
var config_speedocircr = 0.6;
var config_speedocircaa = 0.35; // beginangle
var config_speedocircab = 0.15;// endangle
var config_speedocircthickness = 0.1; // percent of circle radius
var config_speedoinnercirc = 0.8; // info circle inside the speedo
var config_speedoneedlelength = 0.40; // length of the needle, in percent-of-radius. \|/
var config_speedoneedlewidtha = 0.00025; // width of the inner needle, in percent-of-radius. \|/
var config_speedoneedlewidthb = 0.00005; // width of the outer needle, in percent-of-radius. \|/
var config_speedoneedleroffset = -0.300; // offset from center, in percent-of-radius. pos-outward, neg-inward.
var config_speedomax = 120; // mph
var config_datex = 0.95;
var config_datey = 0.17;
var config_timex = 0.95;
var config_timey = 0.10;
var config_subInfoAx = 0.50; // can be street name, city name, etc
var config_subInfoAy = 0.85;
var config_subInfoAFont = "Josefin Sans";
var config_subInfoASize = 0.08;
var config_subInfoLineHeight = 0.09;
var config_hudCompass = {
"radius": 0.8, // percent of speedo circle radius
"arcSize": 0.04, // size of marker arc in percent-of-circle
"arcThickness": 4,
"centerSize": 0.003, // size of marker center in percent-of-speedo-radius
"centerThickness": 15,
"letterSize": 0.10 // size of marker "N"
};
var config_colorScheme = [
"#000000", // background color
"#FF5500", // main color 1 - shapes, lights
"#661100", // main color 2 - speed arc
"#CC1100", // sub color 1
"#992211", // sub color 2
"#993300", // edge color
"#FF9900", // accent color - indicator lights
];
/*var config_colorScheme = [
"#FFFFFF", // background color
"#000000", // main color 1 - shapes, lights
"#555555", // main color 2 - needle(s)
"#777777", // sub color 1
"#992211", // sub color 2
];*/
var config_posOptions = {
enableHighAccuracy: true,
timeout: 5000,
maximumAge: 0,
desiredAccuracy: 1,
frequency: config_posRefreshRate
};
// Other global variables
var viewWidth, viewHeight, w, h;
var textSizeA, textSizeB, textSizeC;
var scx, scy, scr, scaa, scab;
var subInfoASize;
var logStr = "";
var prevTouchTime = -1;
// Prepare the elements and variables
// HTML
var speedoDiv = document.getElementById("speedoCanvasContainer");
speedoDiv.innerHTML += "<canvas id=\"canvas1\" width=\"" + screen.width + "px\" height=\"" + screen.height + "px\">ns =(</canvas>";
//speedoDiv.innerHTML += "<canvas id=\"canvas2\" width=\"" + screen.width + "px\" height=\"" + screen.height + "px\">ns =(</canvas>";
var c1 = document.getElementById("canvas1"); // for HUD info display
//var c2 = document.getElementById("canvas2"); // for HUD controls display
var ctx1 = c1.getContext("2d");
//var ctx2 = c2.getContext("2d");
var viewWidth = window.innerWidth;
var viewHeight = window.innerHeight;
// Date and Time
var dateStr = "";
var timeStr = "";
// GPS
var gpsInfo = document.getElementById("demo");
var geocoderObj = new google.maps.Geocoder;
var geocoderStatus = -1;
var geoWatchPos, geocoderResultsObj, randomSetOfGeocoderResultsObj, randomSetOfGeocoderStatusObj;
var posObj;
var priorLat = -1;
var priorLon = -1;
var priorHeading = -1;
var priorAltitude = -1;
var tripMilesA = 0; // learn to save data then make more relevant trips
var posLat, posLon, posSpeed, posHeading, posAccuracy, posAltitude, posAltitudeAccuracy, posTimeStamp;
posLat = posLon = posSpeed = posHeading = posAccuracy = posAltitude = posAltitudeAccuracy = posTimeStamp = -1;
var geoStreetName, geoNeighborhoodName, geoCityName, geoCountyName, geoStateAbbrev, geoZipCode;
geoStreetName = geoNeighborhoodName = geoCityName = geoCountyName = geoStateAbbrev = geoZipCode = "";
var speedStr, posDirection, sub1Str, sub2Str;
speedStr = posDirection = sub1Str = sub2Str = "---";
try {
// Utility functions
// Distance btw 2 points
function getDistance(lat1,lon1,lat2,lon2,unit="mi") {
var R = 6371; // Radius of the earth in km
var dLat = degToRad(lat2-lat1); // degToRad below
var dLon = degToRad(lon2-lon1);
var a =
Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.cos(degToRad(lat1)) * Math.cos(degToRad(lat2)) *
Math.sin(dLon/2) * Math.sin(dLon/2)
;
var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
var dKm = R * c; // Distance in km
var dMi = dKm * 0.62137119;
var dM = dKm * 1000;
if (unit == "mi") {return dMi}
else if (unit == "km") {return dKm}
else if (unit == "m") {return dM}
else {return "error - specify valid unit type"}
}
// Current pitch in direction of travel
// 1: current. 2: prior.
// &&& way too simple. Need to keep a history of lat/lon/elev for smoothness of functions like this
function getPitch(lat1, lon1, elev1, lat2, lon2, elev2, unit="deg") {
var run = getDistance(lat1, lon1, lat2, lon2, "m");
var rise = elev1 - elev2;
// tan(angle) = opp/adj
// angle = tan^-1(opp/adj)
if (unit == "deg") { return radToDeg(Math.arctan(rise/run)) }
else if (unit == "rad") { return Math.arctan(rise/run) }
}
function degToRad(deg) { return deg * (Math.PI/180) };
function radToDeg(rad) { return rad * (180/Math.PI) };
// Initialize and size the canvas
function initDisplay() {
//alert(window.orientation);
viewWidth = window.innerWidth;
viewHeight = window.innerHeight;
c1.width = viewWidth;
c1.height = viewHeight;
ctx1.width = viewWidth;
ctx1.height = viewHeight;
// calc values
w = c1.width;
h = c1.height;
textSizeA = Math.round( config_textSizeA*Math.min(w,h) );
textSizeB = Math.round( config_textSizeB*Math.min(w,h) );
textSizeC = Math.round( config_textSizeC*Math.min(w,h) );
textSizeD = Math.round( config_textSizeD*Math.min(w,h) );
subInfoASize = Math.round( config_subInfoASize*Math.min(w,h) );
scx = Math.floor(w*config_speedocircx);
scy = Math.floor(h*config_speedocircy);
scr = Math.floor(Math.min(w,h)*config_speedocircr*0.5);
scaa = Math.PI*2*config_speedocircaa;
scab = Math.PI*2*config_speedocircab + Math.PI*2;
// flip context horizontally
if (config_mirrorHud) {
ctx1.scale(-1, 1);
ctx1.translate(-w, 0);
};
// Log the values
/*logStr = "window.innerWidth = " + window.innerWidth + "<br>window.innerHeight = " + window.innerHeight
+ "<br>window.outerWidth = " + window.outerWidth + "<br>window.outerHeight = " + window.outerHeight
+ "<br>screen.width = " + screen.width + "<br>screen.height = " + screen.height + "<br><br>";
errorLog.innerHTML = logStr;
*/
}
// Request fullscreen
function toggleFullscreen(event) {
//var touchTime = new Date();
//var touchMs = touchTime.getTime();
//var touchInterval = touchTime - prevTouchTime;
//if (touchInterval < 500) {
// if fullscreen not active, activate it
if (!document.fullscreenElement && // alternative standard method
!document.mozFullScreenElement && !document.webkitFullscreenElement && !document.msFullscreenElement ) {
//c1.style.visibility = "visible";
if (c1.requestFullscreen) {
c1.requestFullscreen();
} else if (c1.msRequestFullscreen) {
c1.msRequestFullscreen();
} else if (c1.mozRequestFullScreen) {
c1.mozRequestFullScreen();
} else if (c1.webkitRequestFullscreen) {
c1.webkitRequestFullscreen();
}
} else {
//c1.style.visibility = "hidden";
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.msExitFullscreen) {
document.msExitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen();
}
}
//}
//prevTouchTime = touchTime;
//logStr = logStr + "Touch at " + touchTime + "<br />";
//errorLog.innerHTML = logStr;
}
//c1.addEventListener("touchstart", toggleFullscreen);
//c1.addEventListener("mousedown", toggleFullscreen);
function updateTime() {
var dateObj = new Date();
var year = dateObj.getFullYear();
var month = dateObj.getMonth();
var date = dateObj.getDate();
var day = dateObj.getDay();
var hour = dateObj.getHours();
var min = dateObj.getMinutes();
var ampm = "am";
dateStr = "";
timeStr = "";
// Day of week
switch (day) {
case 0: dateStr += "Sun "; break;
case 1: dateStr += "Mon "; break;
case 2: dateStr += "Tue "; break;
case 3: dateStr += "Wed "; break;
case 4: dateStr += "Thu "; break;
case 5: dateStr += "Fri "; break;
case 6: dateStr += "Sat "; break;
}
// Month
/*switch (month) {
case 0: dateStr += "Jan "; break;
case 1: dateStr += "Feb "; break;
case 2: dateStr += "Mar "; break;
case 3: dateStr += "Apr "; break;
case 4: dateStr += "May "; break;
case 5: dateStr += "Jun "; break;
case 6: dateStr += "Jul "; break;
case 7: dateStr += "Aug "; break;
case 8: dateStr += "Sep "; break;
case 9: dateStr += "Oct "; break;
case 10: dateStr += "Nov "; break;
case 11: dateStr += "Dec "; break;
default: dateStr += "? "; break;
}*/
dateStr += (month+1).toString() + "/";
// Day of month
//dateStr += date.toString() + ", " + year.toString();
dateStr += date.toString() + "/" + year.toString();
// Time
if (hour == 0) {hour = 12}
else if (hour > 12) {hour -= 12; ampm = "pm"}
timeStr = hour.toString() + ":";
if (min < 10) { timeStr += "0" + min.toString() }
else { timeStr += min.toString() }
//timeStr += ampm;
}
// Initialization function.
// - set position watch function
// - set animation function
function initGeo() {
try {
// Set position watch function
if (navigator.geolocation) {
geoWatchPos = navigator.geolocation.watchPosition(
//updateGeocode, // don't update geocode this rapidly! call update() elsewhere
updatePosition,
handlePosError,
config_posOptions
);
} else { gpsInfo.innerHTML = "Geolocation is not supported by this browser." }
//updateGeocode();
} catch(ex) {
logStr = logStr + ex + "<br />";
errorLog.innerHTML = logStr;
};
};
// updatePosition(posiiton) - get GPS data.
// Put the updated position info into a global variable, update vars
// position.coords:
// .latitude .longitude
// .accuracy .altitude .altitudeAccuracy
// .heading
// .speed
// position.timestamp
function updatePosition(position) {
try {
// Make position value global
posObj = position;
// Get the values from Position object
if( posObj === undefined ) {
posLat = -1;
posLon = -1;
posSpeed = -1;
posHeading = -1;
posAccuracy = -1;
posAltitude = -1;
posAltitudeAccuracy = -1;
posTimestamp = -1;
} else {
posLat = posObj.coords.latitude;
posLon = posObj.coords.longitude;
posSpeed = posObj.coords.speed * 2.236936292; // m/s to m/h
posHeading = posObj.coords.heading
posAccuracy = posObj.coords.accuracy;
posAltitude = posObj.coords.altitude;
posAltitudeAccuracy = posObj.coords.altitudeAccuracy;
posTimestamp = posObj.timestamp;
};
// Make formatted strings
// Speed
if (posSpeed.toString() == "NaN") {speedStr = "---"} else {speedStr = Math.round(posSpeed).toString()};
// Direction
if ( posHeading === undefined ) {posDirection = "---" }
else if (posHeading < 0) {posDirection = ""}
else if (posHeading > 348.75 || posHeading <= 11.25) {posDirection = "N" }
else if (posHeading > 11.25 && posHeading <= 33.75) {posDirection = "NNE"}
else if (posHeading > 33.75 && posHeading <= 56.25) {posDirection = "NE" }
else if (posHeading > 56.25 && posHeading <= 78.75) {posDirection = "ENE"}
else if (posHeading > 78.75 && posHeading <= 101.25) {posDirection = "E" }
else if (posHeading > 101.25 && posHeading <= 123.75) {posDirection = "ESE"}
else if (posHeading > 123.75 && posHeading <= 146.25) {posDirection = "SE" }
else if (posHeading > 146.25 && posHeading <= 168.75) {posDirection = "SSE"}
else if (posHeading > 168.75 && posHeading <= 191.25) {posDirection = "S" }
else if (posHeading > 191.25 && posHeading <= 213.75) {posDirection = "SSW"}
else if (posHeading > 213.75 && posHeading <= 236.25) {posDirection = "SW" }
else if (posHeading > 236.25 && posHeading <= 258.75) {posDirection = "WSW"}
else if (posHeading > 258.75 && posHeading <= 281.25) {posDirection = "W" }
else if (posHeading > 281.25 && posHeading <= 303.75) {posDirection = "WNW"}
else if (posHeading > 303.75 && posHeading <= 326.25) {posDirection = "NW" }
else if (posHeading > 326.25 && posHeading <= 348.75) {posDirection = "NNW"}
;
if (posSpeed <= 3) {posHeading = priorHeading} else {priorHeading = posHeading};
} catch(ex) {
logStr = logStr + "Position Error " + ex.code + ": " + ex.message + "<br />";
errorLog.innerHTML = logStr;
}
}
// updateGeocode() - send latLng pair, get place objects (place, street, city, state, etc)
// &&& Update to put all resultsObjects in formatted, easily readable object, then pull the needed strings from that.
function updateGeocode() {
try {
var i;
var j;
var latlng = {lat: posObj.coords.latitude, lng: posObj.coords.longitude};
geocoderObj.geocode({'location': latlng}, function(results, status) {
// Set results to global vars
geocoderResultsObj = results;
geocoderStatus = status;
// Get the values from geocoder object
geoStreetName = "";
geoNeighborhoodName = "";
geoCityName = "";
geoCountyName = "";
geoStateAbbrev = "";
geoZipCode = "";
sub1Str = "---";
sub2Str = "---";
if( geocoderResultsObj !== undefined && geocoderResultsObj !== null ) {
for (i=0; i<geocoderResultsObj.length; i++) {
// Get street name, neighborhood name, city name from street_address obj
if ( geocoderResultsObj[i].types[0] == "street_address" || geocoderResultsObj[i].types[0] == "route" ) {
for( j=0; j<geocoderResultsObj[i].address_components.length; j++ ) {
// Street name
if( geocoderResultsObj[i].address_components[j].types[0] == "route" ) {
geoStreetName = geocoderResultsObj[i].address_components[j].long_name;
}
// Neighborhood name
if( geoNeighborhoodName == "" && ( geocoderResultsObj[i].address_components[j].types[0] == "neighborhood" || geocoderResultsObj[i].address_components[j].types[0] == "administrative_area_level_3" ) ) {
geoNeighborhoodName = geocoderResultsObj[i].address_components[j].long_name;
}
// City name
if( geocoderResultsObj[i].address_components[j].types[0] == "locality" ) {
geoCityName = geocoderResultsObj[i].address_components[j].long_name;
}
}
} // end of Get street name
}
sub1Str = geoStreetName;
if ( geoNeighborhoodName != "" && geoCityName != "" ) {
sub2Str = geoNeighborhoodName + ", " + geoCityName;
} else {
sub2Str = geoNeighborhoodName + geoCityName;
}
};
});
} catch(ex) {
logStr = logStr + "Geocoder Error " + ex.code + ": " + ex.message + "<br />i=" + i + " j=" + j + "<br />";
errorLog.innerHTML = logStr;
}
}
function handlePosError(ex) {
logStr = logStr + "Position Error " + ex.code + ": " + ex.message + "<br />";
errorLog.innerHTML = logStr;
};
// Get info on n random positions (&&&Update updateGeocode() first.)
function getRandomPositions(nPos) {
/*Top-Right (NE): 41.749636, -71.006678
Bottom-Right (SE): 30.556941, -81.737882
Bottom-Left (SW): 32.701951, -117.150259
Top-Left (NW): 48.979818, -123.071243*/
var i, j;
var lng, lat;
var latlng;
var lngMax = 48.979818;
var lngMin = 30.556941;
var latMax = -71.006678;
var latMin = -123.071243;
var randomGeocoderResultsObj;
var randomGeocoderStatusObj;
randomSetOfGeocoderResultsObj = [];
randomSetOfGeocoderStatusObj = [];
for (i=0; i<nPos; i++) {
lng = lngMin + ( Math.random() * (lngMax-lngMin) );
lat = latMin + ( Math.random() * (latMax-latMin) );
logStr += "lng: " + lng + " lat: " + lat + "<br />";
errorLog.innerHTML = logStr;
latlng = {lat: lat, lng: lng};
geocoderObj.geocode({'location': latlng}, function(results, status) {
randomSetOfGeocoderResultsObj[i] = results;
randomSetOfGeocoderStatusObj[i] = status;
});
}
}
function draw() {
try {
// *** Moved getting the obj values to updateGeocode() ***
// calc values
// trip meter
if( priorLat !== -1 ) {
var distIncrement = getDistance( priorLat, priorLon, posLat, posLon );
tripMilesA += distIncrement;
}
priorLat = posLat;
priorLon = posLon;
priorAltitude = posAltitude;
// DEV
//posSpeed = 45;
//posSpeed = Math.sin(posHeading/(Math.PI*2))*45;
//posHeading += 0.5;
//posSpeed %= config_speedomax;
//posHeading = 12;
gpsInfo.innerHTML = "<br>Speed: " + posSpeed + "<br>Heading: " + posHeading + "<br>Accuracy: " + posAccuracy + "<br>Trip: " + tripMilesA;
// Draw hud
//ctx1.clearRect(0,0,w,h);
ctx1.fillStyle = config_colorScheme[0];
ctx1.fillRect(0,0,w,h);
// Date and time
ctx1.beginPath(); // Date
ctx1.fillStyle = config_colorScheme[3];
ctx1.font = textSizeD.toString() + "px " + config_subInfoAFont;
var dateWidth = ctx1.measureText(dateStr).width;
var dateHeight = ctx1.measureText(dateStr).height;
ctx1.fillText(dateStr, (w*config_datex)-(dateWidth*1.0), (h*config_datey));
ctx1.closePath();
ctx1.beginPath(); // Time
ctx1.fillStyle = config_colorScheme[1];
ctx1.font = textSizeC.toString() + "px " + config_subInfoAFont;
var timeWidth = ctx1.measureText(timeStr).width;
var timeHeight = ctx1.measureText(timeStr).height;
ctx1.fillText(timeStr, (w*config_timex)-(timeWidth*1.0), (h*config_timey));
ctx1.closePath();
// Speedo outer-circle (current speed)
if (posSpeed >= 0) {var needleAngle = scaa + ((scab-scaa)*(posSpeed/config_speedomax))} else {var needleAngle = scaa};
ctx1.strokeStyle = config_colorScheme[2];
ctx1.lineWidth = scr*config_speedocircthickness;
ctx1.beginPath();
ctx1.arc(scx, scy, scr, scaa, needleAngle);
ctx1.stroke();
ctx1.closePath();
// Speedo outer-circle range
ctx1.strokeStyle = config_colorScheme[5];
ctx1.lineWidth = 1;
ctx1.beginPath();
ctx1.arc(scx, scy, scr-(scr*config_speedocircthickness*0.5), scaa, scab);
ctx1.stroke();
ctx1.closePath();
// speedo needle
ctx1.fillStyle = config_colorScheme[0];
ctx1.strokeStyle = config_colorScheme[1];
ctx1.lineWidth = 0.5;
ctx1.beginPath();
// draw the polygon clockwise from top-right (when pointing up)
ctx1.moveTo(
scx + ( -Math.sin( needleAngle+(scr*config_speedoneedlewidthb)-(Math.PI/2) ) * (scr+(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) ),
scy + ( Math.cos( needleAngle+(scr*config_speedoneedlewidthb)-(Math.PI/2) ) * (scr+(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) )
);
ctx1.lineTo(
scx + ( -Math.sin( needleAngle+(scr*config_speedoneedlewidtha)-(Math.PI/2) ) * (scr-(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) ),
scy + ( Math.cos( needleAngle+(scr*config_speedoneedlewidtha)-(Math.PI/2) ) * (scr-(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) )
);
ctx1.lineTo(
scx + ( -Math.sin( needleAngle-(scr*config_speedoneedlewidtha)-(Math.PI/2) ) * (scr-(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) ),
scy + ( Math.cos( needleAngle-(scr*config_speedoneedlewidtha)-(Math.PI/2) ) * (scr-(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) )
);
ctx1.lineTo(
scx + ( -Math.sin( needleAngle-(scr*config_speedoneedlewidthb)-(Math.PI/2) ) * (scr+(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) ),
scy + ( Math.cos( needleAngle-(scr*config_speedoneedlewidthb)-(Math.PI/2) ) * (scr+(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) )
);
ctx1.lineTo(
scx + ( -Math.sin( needleAngle+(scr*config_speedoneedlewidthb)-(Math.PI/2) ) * (scr+(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) ),
scy + ( Math.cos( needleAngle+(scr*config_speedoneedlewidthb)-(Math.PI/2) ) * (scr+(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) )
);
// make gradient. (x0, y0, x1, y1)
var grd = ctx1.createLinearGradient(
scx + ( -Math.sin( needleAngle-(Math.PI/2) ) * (scr-(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) ),
scy + ( Math.cos( needleAngle-(Math.PI/2) ) * (scr-(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) ),
scx + ( -Math.sin( needleAngle-(Math.PI/2) ) * (scr+(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) ),
scy + ( Math.cos( needleAngle-(Math.PI/2) ) * (scr+(scr*config_speedoneedlelength)+(scr*config_speedoneedleroffset) ) ),
);
grd.addColorStop(0.00, config_colorScheme[0]);
//grd.addColorStop(0.80, config_colorScheme[1]);
grd.addColorStop(1.00, config_colorScheme[6]);
//grd.addColorStop(1.00, config_colorScheme[1]);
//grd.addColorStop(1.00, config_colorScheme[6]);
ctx1.fillStyle = grd;
ctx1.fill();
//ctx1.stroke();
ctx1.closePath();
// compass ring
compassAngle = (posHeading*(Math.PI/180));
// marker arc
ctx1.strokeStyle = config_colorScheme[3];
ctx1.lineWidth = config_hudCompass.arcThickness;
ctx1.beginPath();
ctx1.arc( scx, scy, scr*config_hudCompass.radius, -compassAngle-(Math.PI/2)-(Math.PI*2*config_hudCompass.arcSize), -compassAngle-(Math.PI/2)+(Math.PI*2*config_hudCompass.arcSize) );
ctx1.stroke();
ctx1.closePath();
// marker center
ctx1.strokeStyle = config_colorScheme[1];
ctx1.lineWidth = config_hudCompass.centerThickness;
ctx1.beginPath();
ctx1.arc( scx, scy, scr*config_hudCompass.radius, -compassAngle-(Math.PI/2)-(Math.PI*2*config_hudCompass.centerSize), -compassAngle-(Math.PI/2)+(Math.PI*2*config_hudCompass.centerSize) );
ctx1.stroke();
ctx1.closePath();
// Top Info - digital speed
ctx1.fillStyle = config_colorScheme[1];
ctx1.font = textSizeA.toString() + "px " + config_textFontA;
var spdWidth = ctx1.measureText(speedStr).width;
ctx1.beginPath();
ctx1.fillText(speedStr, scx-(spdWidth*0.90), scy);
ctx1.font = textSizeC.toString() + "px " + config_textFontC;
ctx1.fillText(" mph", scx+(scr*0.10), scy);
ctx1.closePath();
// Bottom info - simple compass
ctx1.fillStyle = config_colorScheme[1];
ctx1.font = textSizeB.toString() + "px " + config_textFontB;
infoBwidth = ctx1.measureText(posDirection).width;
infoBheight = ctx1.measureText(posDirection).height;
ctx1.beginPath();
ctx1.fillText(posDirection, scx-(infoBwidth*0.5), scy+textSizeB+(h*0.025));
ctx1.closePath();
// Sub Info: divider
var divX = w*0.25;
var divW = w*0.50;
var grd = ctx1.createLinearGradient(divX, 0, divX+divW, 0);
grd.addColorStop(0, config_colorScheme[0]);
grd.addColorStop(0.5, config_colorScheme[3]);
grd.addColorStop(1, config_colorScheme[0]);
ctx1.fillStyle = grd;
ctx1.fillRect(divX, (h*config_subInfoAy)-(h*config_subInfoLineHeight), divW, h*0.005);
// Sub Info: street name; neighborhood, city
ctx1.beginPath();
ctx1.fillStyle = config_colorScheme[1];
ctx1.font = subInfoASize.toString() + "px " + config_subInfoAFont;
var l1Width = ctx1.measureText(sub1Str).width;
var l1Height = ctx1.measureText(sub1Str).height;
ctx1.fillText(sub1Str, (w*config_subInfoAx)-(l1Width*0.5), (h*config_subInfoAy));
ctx1.closePath();
ctx1.beginPath();
ctx1.fillStyle = config_colorScheme[3];
var l2Width = ctx1.measureText(sub2Str).width;
var l2Height = ctx1.measureText(sub2Str).height;
ctx1.fillText(
sub2Str,
(w*config_subInfoAx)-(l2Width*0.5),
(h*config_subInfoAy)+(h*config_subInfoLineHeight)
);
//logStr = logStr + subInfoASize + ", " + textSizeA + "<br />";
//errorLog.innerHTML = logStr;
ctx1.closePath();
} catch(ex) {
logStr = logStr + " " + ex;
errorLog.innerHTML = logStr;
}
};
// Iterator function. Run the repeating functions at their respective run rates.
var t; // current time
var t0 = Date.now(); // initial time ("t naught")
var tStamp_updateGeocode;
var nRuns_updateGeocode;
var tStamp_draw;
var nRuns_draw;
function tickScheduler() {
t = Date.now();
// schedule updateGeocode()
requestAnimationFrame(tickScheduler);
}
// Main function
var interval_updateGeocode;
var interval_draw;
var interval_updateTime;
function main() {
// Initialize
initDisplay();
initGeo();
interval_updateTime = setInterval(
function() {updateTime()},
1000
);
interval_updateGeocode = setInterval(
function() {updateGeocode()},
config_geocodeRefreshRate
);
interval_draw = setInterval(
function() {draw()},
1000/config_fps
);
window.addEventListener("orientationchange", initDisplay);
window.onresize = initDisplay;
//fTimeout = setTimeout(draw, config_fps);
};
main();
} catch(ex) {
logStr = logStr + ex + "<br />";
errorLog.innerHTML = logStr;
}