How to render jqPlot chart in asp.net MVC - asp.net-mvc-2

I am trying to render a jqPlot bar chart using asp.net MVC. Not sure how to build an array on the client side using the data returned from a controller.
I am trying to which is similar to this, http://jsfiddle.net/du8GZ/
#foreach (var d in Model.SampleChart)
{
// What to write here?
}
public class SampleChart
{
public int Count { get; set; }
public string Name { get; set; }
}
public ActionResult BarIn()
{
List<SampleChart> data = new List<SampleChart>();
SampleChart bar;
Random r = new Random();
for (int i = 0; i < 10; i++)
{
bar = new SampleChart();
bar.Count = i;
bar.Name = "Sample " + i.ToString();
data.Add(bar);
}
return View(data);
}
<link class="include" rel="stylesheet" type="text/css" href="#Url.Content("~/scripts/jqplot/css/jquery.jqplot.min.css")" />
<!--[if lt IE 9]><script language="javascript" type="text/javascript" src="#Url.Content("~/scripts/jqplot/excanvas.min.js")"></script><![endif]-->
<script type="text/javascript" src="#Url.Content("~/scripts/jqPlot/jquery.jqplot.min.js")"></script>
<script type="text/javascript" src="#Url.Content("~/scripts/jqplot/jqplot.categoryAxisRenderer.min.js")"></script>
<script type="text/javascript" src="#Url.Content("~/scripts/jqPlot/jqplot.barRenderer.min.js")"></script>
<div class="example-content">
<!-- Example scripts go here -->
<style type="text/css">
.jqplot-target
{
margin: 30px;
}
.tooltipCss
{
position: absolute;
background-color: #b2b1ac;
color: White;
z-index: 200;
padding: 5px;
border-radius: 5px;
display: none;
}
</style>
<div id="chart2" class="plot" ></div>
</div>
<script type="text/javascript">
$(document).ready(function () {
var data = new Array();
var series = new Array();
#foreach (var d in Model.SampleChart)
{
}
plot2 = $.jqplot('chart2', data, {
seriesDefaults: {
renderer: $.jqplot.BarRenderer,
rendererOptions: {
barDirection: 'horizontal',
barPadding: 10,
barMargin: 15
}
},
series: series,
axes: {
yaxis: {
renderer: $.jqplot.CategoryAxisRenderer
}
}
});
$('#chart2').bind('jqplotDataMouseOver',
function (ev, seriesIndex, pointIndex, data) {
//$('#info2').html('series "' + series[seriesIndex].label + '" point "' + (pointIndex + 5) + '"<br /> value "' + data[1] + '"');
//$('#info2').css({ "left": ev.pageX + 3, "top": ev.pageY })
$('#info2').show();
}
);
$('#chart2').bind('jqplotDataUnhighlight',
function (ev) {
$('#info2').hide();
}
);
});
</script>
<div id="info2" class="tooltipCss"></div>

The array on your client side is actually represented in JSON so all you have to do is create a view model that will hold a representation of your array and dump it in a hidden field as JSON ... like this:
#Html.Hidden("BarGraphData",Json.Encode(Model.BarGraphData))
and then use jQuery to send the data to jqPlot like that:
var columnChartData = $.parseJSON($('#BarGraphData').val());
var plot2 = $.jqplot('chart1', columnChartData ,{....

Related

MapQuest add text in flag icon

I have the following code and I want to add different text in each of the icons. Example for the location "Quebec" it should be entered "08h00" for "Beaupre" .. "15h00" etc..
<html>
<head>
<script src="https://api.mqcdn.com/sdk/mapquest-js/v1.3.2/mapquest.js"></script>
<link type="text/css" rel="stylesheet" href="https://api.mqcdn.com/sdk/mapquest-js/v1.3.2/mapquest.css"/>
<script type="text/javascript">
window.onload = function() {
L.mapquest.key = '';
// Geocode three locations, then call the createMap callback
L.mapquest.geocoding().geocode(['Quebec,Qc', 'Beaupre,Qc', 'Montmagny,Qc'], createMap);
function createMap(error, response) {
// Initialize the Map
var map = L.mapquest.map('map', {
layers: L.mapquest.tileLayer('map'),
center: [0, 0],
zoom: 12
});
// Generate the feature group containing markers from the geocoded locations
var featureGroup = generateMarkersFeatureGroup(response);
// Add markers to the map and zoom to the features
featureGroup.addTo(map);
map.fitBounds(featureGroup.getBounds());
}
function generateMarkersFeatureGroup(response) {
var group = [];
for (var i = 0; i < response.results.length; i++) {
var location = response.results[i].locations[0];
var locationLatLng = location.latLng;
// Create a marker for each location
var marker = L.marker(locationLatLng, {icon: L.mapquest.icons.flag()})
.bindPopup(location.adminArea5 + ', ' + location.adminArea3);
group.push(marker);
}
return L.featureGroup(group);
}
}
</script>
</head>
<body style="border: 0; margin: 0;">
<div id="map" style="width: 100%; height: 530px;"></div>
</body>
</html>
Could anyone help me please ?
Thanks.
Try setting the symbol for the flag like icon: L.mapquest.icons.flag({symbol:"08h00"})
More details here: https://developer.mapquest.com/documentation/mapquest-js/v1.3/l-mapquest-icons/

Open popup after flyTo in Leaflet?

I have a Leaflet-map with a layer containing markers with popups using bindPopup. I written this function that flies to the next marker onclick:
const makeFlyTo = () => {
const button = document.getElementById("next");
L.DomEvent.on(button, "click", function(e) {
if (currentView === data.length) {
currentView = 0;
}
map.flyTo(
[data[currentView].lat, data[currentView].lng],
{ zoom },
{
animate: true,
duration: 3
}
);
currentView++;
});
};
I would be nice if the popup opened up on "arrival". Any idea how this can be done?
We have to open marker first and they use FlyTo.
marker.openPopup();
map.flyTo([value['lat'], value['lng']], 15);
As mentioned in the comments, If we use flyTo and then open Popup then most of the times the view adjustment made by popup in map is incorrect.
map.panTo([value['lat'], value['lng']], 15).on('zoomend', () => { setTimeout(()=>marker.openPopup(), 3000) })
OR
map.panTo([value['lat'], value['lng']], 15).on('zoomend', () => marker.openPopup())
Example -
var map = L.map("map").setView([46.76336, -71.32453], 16);
var OpenStreetMap_Mapnik = L.tileLayer(
"http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
{
maxZoom: 19,
attribution:
'© OpenStreetMap'
}
).addTo(map);
function addRowTable(marker, code, coords) {
var tr = document.createElement("tr");
var td = document.createElement("td");
td.textContent = code;
tr.appendChild(td);
tr.onclick = () => {
marker.openPopup();
map.flyTo([value['lat'], value['lng']], 15);
};
document.getElementById("t_points").appendChild(tr);
}
function addMarker(code, lat, lng) {
var marker = L.marker([lat, lng]);
marker.title = code;
marker.bindPopup(code);
marker.addTo(map);
addRowTable(marker, code, [lat, lng]);
}
$(document).ready(function () {
var points = [
["M02KM262", 46.76336, -71.32453],
["M10KM052", 46.76186, -71.32247],
["83KM081", 46.76489, -71.32664],
["83KM082", 46.76672, -71.32919]
];
for (var i = 0; i < points.length; i++) {
addMarker(points[i][0], points[i][1], points[i][2]);
}
});
html, body, .full, #map{
margin: 0;
padding:0;
height: 100%;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"></script>
<script src="https://unpkg.com/leaflet#1.0.3/dist/leaflet.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet"/>
<link href="https://unpkg.com/leaflet#1.0.3/dist/leaflet.css" rel="stylesheet"/>
<div class="row full">
<div class="col col-sm-3 full" style="overflow: auto;">
<h3 >List</h3>
<table class="table table-bordered">
<thead>
<tr>
<th>Codes</th>
</tr>
</thead>
<tbody id="t_points"></tbody>
</table>
</div>
<div id="map" class="col col-sm-9 full"></div>
</div>

Owl Curasol Not working in my date picker

Hi I have Date picker on select Date Month & Year it will show all Date in that Moth it working Fine
Now I want to add a Slider On that so that i used Owl Curasol after adding Curasol Date picker Stopped Working.
My Full code
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js"></script>
<link rel="stylesheet" type="text/css" media="screen" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/base/jquery-ui.css">
<link rel="stylesheet" type="text/css" href="http://www.jqueryscript.net/demo/Powerful-Customizable-jQuery-Carousel-Slider-OWL-Carousel/owl-carousel/owl.carousel.css">
<script type="text/javascript">
var weekday = new Array(7);
weekday[0] = "Sunday";
weekday[1] = "Monday";
weekday[2] = "Tuesday";
weekday[3] = "Wednesday";
weekday[4] = "Thursday";
weekday[5] = "Friday";
weekday[6] = "Saturday";
$(function() {
$('.date-picker').datepicker( {
changeMonth: true,
changeYear: true,
showButtonPanel: true,
dateFormat: 'MM yy',
minDate: 0,
onClose: function(dateText, inst) {
$d = new Date(inst.selectedYear, parseInt(inst.selectedMonth)+1, 0).getDate();
$(this).datepicker('setDate', new Date(inst.selectedYear, inst.selectedMonth, 1));
html='';
for(i=1;i<=$d;i++){
console.log(inst.selectedYear+'-'+(parseInt(inst.selectedMonth)+1)+'-'+i);
d = new Date(inst.selectedYear+'-'+(parseInt(inst.selectedMonth)+1)+'-'+i);
console.log(d);
n = weekday[d.getDay()];
html += '<div class="datediv">div-'+i+'<br>'+n+'</div>';
}
$('#datecontent').html(html);
}
});
$(document).ready(function() {
$(document).live('click', '.datediv', function() { alert("hello"); });});
});
</script>
Html Code
<label for="startDate">Date :</label>
<input name="startDate" id="startDate" class="date-picker" />
<div id="datecontent" id="owl-demo">
</div>
Owl Script
<script src="http://www.jqueryscript.net/demo/Powerful-Customizable-jQuery-Carousel-Slider-OWL-Carousel/assets/js/jquery-1.9.1.min.js"></script>
<script src="http://www.jqueryscript.net/demo/Powerful-Customizable-jQuery-Carousel-Slider-OWL-Carousel/owl-carousel/owl.carousel.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#owl-demo").owlCarousel({
items : 10, //10 items above 1000px browser width
itemsDesktop : [1000,5], //5 items between 1000px and 901px
itemsDesktopSmall : [900,3], // betweem 900px and 601px
itemsTablet: [600,2], //2 items between 600 and 0;
itemsMobile : false // itemsMobile disabled - inherit from itemsTablet option
});
});
</script>
I got This error TypeError: $(...).datepicker is not a function
How to fix this issue. I think because of Jquery Conflict Only
How to over come on this??
Hope this helps!
You should use the add method in carousel to append items inside carousel.Also use refresh to run the slider after appending.
owl.trigger('add.owl.carousel', ['<div class="datediv">div-'+i+'<br>'+n+'</div>']).trigger('refresh.owl.carousel');
use remove method to remove items from carousel before appending new items.
for (var i =0; i< $('.owl-item').length; i++) {
owl.trigger('remove.owl.carousel', [i]).trigger('refresh.owl.carousel');
}
$(document).ready(function() {
var weekday = new Array(7);
weekday[0] = "Sunday";
weekday[1] = "Monday";
weekday[2] = "Tuesday";
weekday[3] = "Wednesday";
weekday[4] = "Thursday";
weekday[5] = "Friday";
weekday[6] = "Saturday";
$('.date-picker').datepicker( {
changeMonth: true,
changeYear: true,
showButtonPanel: true,
dateFormat: 'MM yy',
minDate: 0,
onClose: function(dateText, inst) {
$d = new Date(inst.selectedYear, parseInt(inst.selectedMonth)+1, 0).getDate();
$(this).datepicker('setDate', new Date(inst.selectedYear, inst.selectedMonth, 1));
for (var i =0; i< $('.owl-item').length; i++) {
owl.trigger('remove.owl.carousel', [i]).trigger('refresh.owl.carousel');
}
for(i=1;i<=$d;i++){
console.log(inst.selectedYear+'-'+(parseInt(inst.selectedMonth)+1)+'-'+i);
d = new Date(inst.selectedYear+'-'+(parseInt(inst.selectedMonth)+1)+'-'+i);
console.log(d);
n = weekday[d.getDay()];
owl
.trigger('add.owl.carousel', ['<div class="datediv">div-'+i+'<br>'+n+'</div>'])
.trigger('refresh.owl.carousel');
}
}
});
$(document).on('click', '.datediv', function() { alert("hello"); });
var owl = $(".owl-demo");
owl.owlCarousel({
margin: 20,
items : 10, //10 items above 1000px browser width
itemsDesktop : [1000,5], //5 items between 1000px and 901px
itemsDesktopSmall : [900,3], // betweem 900px and 601px
itemsTablet: [600,2], //2 items between 600 and 0;
itemsMobile : false // itemsMobile disabled - inherit from itemsTablet option
});
});
.owl-item {
-webkit-tap-highlight-color: transparent;
position: relative;
min-height: 1px;
float: left;
-webkit-backface-visibility: hidden;
-webkit-touch-callout: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.0.0-beta.3/owl.carousel.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.0.0-beta.3/assets/owl.theme.default.min.css" rel="stylesheet"/>
<link href="https://owlcarousel2.github.io/OwlCarousel2/assets/owlcarousel/assets/owl.carousel.min.css" rel="stylesheet"/>
<link href="https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.0.0-beta.3/assets/owl.theme.default.min.css" rel="stylesheet"/>
<label for="startDate">Date :</label>
<input name="startDate" id="startDate" class="date-picker" />
<div id="datecontent" class="owl-demo">
</div>

google place autocomplete entry in mysql issue

i wish to use google place autocomplete for one of my project but the issue is that i need to store entry of county, state and city as different entry in mysql. i.e when someone type mum and result is displayed as Mumbai(city), Maharashtra(state), India(country), then all this 3 entry should be stored as different entry in mysql. Is it possible to do this ?
See this page and Enjoy.
<!DOCTYPE HTML>
<html>
<head>
<title>Place Autocomplete Address and type</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<link type="text/css" rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500">
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?libraries=places&sensor=false&language=it"></script>
</head>
<body>
<input id="autocomplete" placeholder="Enter your address"
type="text"></input>
<br>
<br>
<div id="divToPrint" style="clear: both; float: left; border:solid 1px black; height: 32px;"></div>
<script>
/* set a default Bounds */
var defaultBounds = new google.maps.LatLngBounds(
new google.maps.LatLng(52.207606672865225, -0.9448242187499911),
new google.maps.LatLng(52.464377026041284, -0.2746582031249841));
/* get a input tag with id = autocomplete */
var input = document.getElementById('autocomplete');
/* set a options */
var options = {
bounds: defaultBounds,
types: ['geocode'],
};
/* register a autocomplete object into a variable named autocomplete */
var autocomplete = new google.maps.places.Autocomplete(input, options);
/* listen a place_changed event into variable autocomplete and do: */
google.maps.event.addListener(autocomplete, 'place_changed', function() {
/* reset a defaultBounds into variable */
autocomplete.setBounds(defaultBounds);
/* get a response place */
var place = autocomplete.getPlace();
/* initilize the componentsTypePlace */
var componentsTypePlace = "";
/* get a div tag with id = divToPrint */
var divToPrint = document.getElementById('divToPrint');
/* get a legth of request address */
var addressLengthplace = place.address_components.length;
/* cycle into a adress_components */
for(var i=0; i < addressLengthplace; i++){
/* get a value of address_component type */
componentsTypePlace = place.address_components[i].types[0];
/* get a value of address_component array[i] */
var val = place.address_components[i].long_name;
/* insert into div a value of address component and its type */
divToPrint.innerHTML += "//"+ componentsTypePlace + " : " + val +" //";
}
});
</script>
</body>
</html>
<link type="text/css" rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500">
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false&libraries=places"></script>
<script>
var placeSearch, autocomplete;
var componentForm = {
street_number: 'short_name',
route: 'long_name',
locality: 'long_name',
administrative_area_level_1: 'long_name',
country: 'long_name',
postal_code: 'short_name'
};
function initialize() {
autocomplete = new google.maps.places.Autocomplete(
/** #type {HTMLInputElement} */(document.getElementById('autocomplete')),
{ types: ['geocode'] });
google.maps.event.addListener(autocomplete, 'place_changed', function() {
//fillInAddress();
});
}
function fillInAddress() {
var place = autocomplete.getPlace();
for (var component in componentForm) {
document.getElementById(component).value = '';
document.getElementById(component).disabled = false;
}
for (var i = 0; i < place.address_components.length; i++) {
var addressType = place.address_components[i].types[0];
if (componentForm[addressType]) {
var val = place.address_components[i][componentForm[addressType]];
document.getElementById(addressType).value = val;
}
}
}
function geolocate() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var geolocation = new google.maps.LatLng(
position.coords.latitude, position.coords.longitude);
autocomplete.setBounds(new google.maps.LatLngBounds(geolocation,
geolocation));
});
}
}
</script>
<body onload="initialize()">
<div id="locationField">
<input id="autocomplete" placeholder="Enter your address" onFocus="geolocate()" type="text" value= <?php if(isset($location)): echo $location; else: echo '""'; endif; ?> name="data[Location][location]" class ="input-block-level" required ="required">
</div>
</body>

Sluggish UI in drawing/sketching web app on Mobile Safari (HTML5 canvas)

We have been playing around with the canvas element, but are encountering sluggishness on Mobile Safari whereas the app works smoothly on the desktop.
The test app is very primitive. It just lets the user draw a line using the mouse on a desktop or a finger on smart phones.
In Mobile Safari, the drawing of the line is often very jerky. The first bit of a line will render in real-time, but the rest won't render until after the finger is lifted from the screen.
Any ideas why?
Code below.
HTML:
<!DOCTYPE html>
<html>
<head>
<link rel='stylesheet' href='http://code.jquery.com/mobile/1.0/jquery.mobile-1.0.min.css' />
<script src='http://code.jquery.com/jquery-1.6.4.min.js'></script>
<script src='http://code.jquery.com/mobile/1.0/jquery.mobile-1.0.min.js'></script>
<style type='text/css'>
#canvas { border:1px solid red }
</style>
</head>
<body>
<div id='draw_page' data-role='page'>
<canvas id="canvas" width="500" height="350"></canvas>
</div>
<script type="text/javascript">
$('#draw_page').live('pageinit', function() {
prep_canvas();
});
</script>
</body>
</html>
JavaScript:
var clickX = new Array();
var clickY = new Array();
var clickDrag = new Array();
var paint;
var canvas;
var context;
function prep_canvas() {
canvas = $('#canvas')[0];
context = canvas.getContext("2d");
}
$('#canvas').live('vmousedown', function(e){
var mouseX = e.pageX - this.offsetLeft;
var mouseY = e.pageY - this.offsetTop;
paint = true;
addClick(e.pageX - this.offsetLeft, e.pageY - this.offsetTop);
redraw();
});
$('#canvas').live('vmousemove', function(e){
if(paint){
addClick(e.pageX - this.offsetLeft, e.pageY - this.offsetTop, true);
redraw();
}
});
$('#canvas').live('vmouseup', function(e){
paint = false;
});
function addClick(x, y, dragging)
{
clickX.push(x);
clickY.push(y);
clickDrag.push(dragging);
}
function redraw(){
canvas.width = canvas.width; // Clears the canvas
context.strokeStyle = "black";
context.lineJoin = "round";
context.lineWidth = 2;
for(var i=0; i < clickX.length; i++)
{
context.beginPath();
if(clickDrag[i] && i){
context.moveTo(clickX[i-1], clickY[i-1]);
}else{
context.moveTo(clickX[i]-1, clickY[i]);
}
context.lineTo(clickX[i], clickY[i]);
context.closePath();
context.stroke();
}
}
I followed this: http://dev.opera.com/articles/view/html5-canvas-painting/ and it works fluidly on the phone (you'll see a commented out line for img_update() which is used in the two canvas method mentioned by BumbleB2na...but I wasn't using any shapes, just lines, so left it out)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, user-scalable=no,initial-scale = 1.0">
<link rel="apple-touch-icon" href="touch-icon-iphone.png" />
<link rel="apple-touch-icon" sizes="72x72" href="touch-icon-ipad.png" />
<link rel="apple-touch-icon" sizes="114x114" href="touch-icon-iphone4.png" />
<link rel="apple-touch-startup-image" href="startup-iphone.png">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<title>Untitled Document</title>
<style type="text/css">
body {background:#ccc; margin:0; padding:0}
html {margin:0; padding:0;}
#container { position: relative; margin:0; padding:0px; }
#canvas { border: 1px solid #000; background-color:#FFF; position:relative; width:298px; margin-left:11px; margin-top:5px; }
</style>
</head>
<body onload="listen()">
<div id="container">
<canvas id="canvas" width="298" height="298">
</canvas><br/>
<button onclick="clearImage()">Clear</button>
</div>
</body>
<script type="text/javascript">
var canvas = document.getElementById('canvas');
if(canvas){var context= canvas.getContext('2d');}
var tool;
tool = new tool_pencil();
document.body.addEventListener('touchmove',function(event){ event.preventDefault(); },false);
function listen(){
canvas = document.getElementById('canvas');
if(canvas){
context= canvas.getContext('2d');
context.fillStyle = "rgb(255,255,255)";
context.fillRect(0, 0, canvas.width, canvas.height);
iphone = ((window.navigator.userAgent.match('iPhone'))||(window.navigator.userAgent.match('iPod')))?true:false;
ipad = (window.navigator.userAgent.match('iPad'))?true:false;
if(iphone||ipad){
canvas.addEventListener('touchstart', ev_canvas, false);
canvas.addEventListener('touchend', ev_canvas, false);
canvas.addEventListener('touchmove', ev_canvas, false);
}
else{
canvas.addEventListener('mousedown', ev_canvas, false);
canvas.addEventListener('mousemove', ev_canvas, false);
canvas.addEventListener('mouseup', ev_canvas, false);
}
}
}
function tool_pencil () {
var tool = this;
this.started = false;
this.mousedown = function (ev) {
context.beginPath();
context.moveTo(ev._x, ev._y);
tool.started = true;
};
this.mousemove = function (ev) {
if (tool.started) {
context.lineTo(ev._x, ev._y);
context.stroke();
}
};
this.mouseup = function (ev) {
if (tool.started) {
tool.mousemove(ev);
tool.started = false;
//img_update();
}
};
this.touchstart = function (ev) {
ev.preventDefault();
context.beginPath();
context.moveTo(ev._x, ev._y);
tool.started = true;
};
this.touchmove = function (ev) {
ev.preventDefault();
if (tool.started) {
context.lineTo(ev._x, ev._y);
context.stroke();
}
};
this.touchend = function (ev) {
ev.preventDefault();
if (tool.started) {
tool.started = false;
}
};
}
// The general-purpose event handler. This function just determines the mouse position relative to the canvas element.
function ev_canvas (ev) {
iphone = ((window.navigator.userAgent.match('iPhone'))||(window.navigator.userAgent.match('iPod')))?true:false;
ipad = (window.navigator.userAgent.match('iPad'))?true:false;
if (((iphone)||(ipad))&&(ev.touches[0])){ //iPad
ev._x = ev.touches[0].clientX;
ev._y = ev.touches[0].clientY;
}
else if (ev.layerX || ev.layerX == 0) { // Firefox
ev._x = ev.layerX;
ev._y = ev.layerY;
}
else if (ev.offsetX || ev.offsetX == 0) { // Opera
ev._x = ev.offsetX;
ev._y = ev.offsetY;
}
// Call the event handler of the tool.
var func = tool[ev.type];
if (func) {
func(ev);
}
}
function clearImage(){
var yes=confirm('Clear drawing?');
if(yes){
context.clearRect(0, 0, canvas.width, canvas.height);
context.fillStyle = "rgb(255,255,255)";
context.fillRect(0, 0, canvas.width, canvas.height);
}
}
</script>
</html>