A jQuery UIplugin
that captures or draws a signature.
It requires the jQuery UI widget and mouse modules and needs the
excanvas.js add-in for older IE versions.
The current version is 1.2.1 and is available
under the MIT licence.
For more detail see the documentation reference page.
Or see a minimal page that you could
use as a basis for your own investigations.
Not every window installer in the greater Philadelphia area understands steel. You need a fabricator or dealer with experience in Hopes Steel Windows Rosemont projects. They will handle:
Living in the Midwest means preparing for weather extremes—humid summers, freezing winters, and strong spring storms.
One of the biggest misconceptions about steel windows is that they are energy sieves—associated with drafty, old warehouses. However, modern steel window manufacturing has evolved.
Today’s steel windows feature thermal break technology. This involves placing an insulating barrier within the frame to prevent heat transfer. For Rosemont residents, this means you get the aesthetic benefit of sleek metal frames without sacrificing energy efficiency. They keep the heat inside during those famous Chicago winters and the heat outside during the summer. hopes steel windows rosemont
In the world of luxury architecture and historic preservation, few names carry the weight of Hopes Windows. For over a century, this iconic manufacturer has set the gold standard for steel casement windows. When paired with the unique architectural landscape of Rosemont—a neighborhood known for its eclectic blend of historic estates, mid-century modern gems, and new luxury builds—the result is nothing short of transformative.
Whether you are restoring a Tudor revival in the heart of Rosemont’s historic district or constructing a minimalist glass-and-steel pavilion, specifying Hopes Steel Windows Rosemont is a decision that defines character, longevity, and aesthetic perfection. Not every window installer in the greater Philadelphia
If you are planning a project in Rosemont, specifying Hopes windows requires careful planning. Here is a step-by-step guide:
Hopes Steel Windows in Rosemont typically navigates building codes, historic-preservation guidelines, and modern energy performance through strategies such as double-glazing within slim frames, thermal breaks, and modern sealants. This blend of old-world material and new-world performance aligns with sustainable conservation: keeping buildings useful and authentic rather than discarding them for new construction.
Options
Customise the signature functionality through additional settings.
Using metadata for configuration may require adding the jquery.metadata.js plugin to your page.
Events
You can be notified when the signature has changed via the change setting.
And you can erase the signature with the clear command and
test for any content via the isEmpty command.
Extract the signature as a JSON value, and later re-draw it from that value.
Alternately you can generate the signature as SVG, or as a data URL in PNG or JPEG format.
Not every window installer in the greater Philadelphia area understands steel. You need a fabricator or dealer with experience in Hopes Steel Windows Rosemont projects. They will handle:
Living in the Midwest means preparing for weather extremes—humid summers, freezing winters, and strong spring storms.
One of the biggest misconceptions about steel windows is that they are energy sieves—associated with drafty, old warehouses. However, modern steel window manufacturing has evolved.
Today’s steel windows feature thermal break technology. This involves placing an insulating barrier within the frame to prevent heat transfer. For Rosemont residents, this means you get the aesthetic benefit of sleek metal frames without sacrificing energy efficiency. They keep the heat inside during those famous Chicago winters and the heat outside during the summer.
In the world of luxury architecture and historic preservation, few names carry the weight of Hopes Windows. For over a century, this iconic manufacturer has set the gold standard for steel casement windows. When paired with the unique architectural landscape of Rosemont—a neighborhood known for its eclectic blend of historic estates, mid-century modern gems, and new luxury builds—the result is nothing short of transformative.
Whether you are restoring a Tudor revival in the heart of Rosemont’s historic district or constructing a minimalist glass-and-steel pavilion, specifying Hopes Steel Windows Rosemont is a decision that defines character, longevity, and aesthetic perfection.
If you are planning a project in Rosemont, specifying Hopes windows requires careful planning. Here is a step-by-step guide:
Steel windows sit at an interesting sustainability crossroads. Raw steel has higher embodied energy than timber, but:
Hopes Steel Windows in Rosemont typically navigates building codes, historic-preservation guidelines, and modern energy performance through strategies such as double-glazing within slim frames, thermal breaks, and modern sealants. This blend of old-world material and new-world performance aligns with sustainable conservation: keeping buildings useful and authentic rather than discarding them for new construction.
C# Rendering
You can render an image from the signature JSON text on the server.
The following shows how to do this in .NET 4.5 C#, thanks to Daniel Knight.
You would call this code as follows
and it returns a base64 encoded byte array as a string:
GetBase64Png(jsonEncoding, width, height);
using System;
using System.Collections.Generic;
using System.Web.Script.Serialization;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Web.Http;
public class GraphicsController : ApiController
{
[HttpGet]
[ActionName("GetBase64Png")]
public string GetBase64Png([FromUri] string linesGraphicJSON, [FromUri] int width, [FromUri] int height)
{
return Draw2DLineGraphic(new JavaScriptSerializer().Deserialize<Signature>(linesGraphicJSON), width, height);
}
private string Draw2DLineGraphic(I2DLineGraphic lineGraphic, int width, int height)
{
//The png's bytes
byte[] png = null;
//Create the Bitmap set Width and height
using (Bitmap b = new Bitmap(width, height))
{
using (Graphics g = Graphics.FromImage(b))
{
//Make sure the image is drawn Smoothly (this makes the pen lines look smoother)
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
//Set the background to white
g.Clear(Color.White);
//Create a pen to draw the signature with
Pen pen = new Pen(Color.Black, 2);
//Smooth out the pen, making it rounded
pen.DashCap = System.Drawing.Drawing2D.DashCap.Round;
//Last point a line finished at
Point LastPoint = new Point();
bool hasLastPoint = false;
//Draw the signature on the bitmap
foreach (List<List<double>> line in lineGraphic.lines)
{
foreach (List<double> point in line)
{
var x = (int)Math.Round(point[0]);
var y = (int)Math.Round(point[1]);
if (hasLastPoint)
{
g.DrawLine(pen, LastPoint, new Point(x, y));
}
LastPoint.X = x;
LastPoint.Y = y;
hasLastPoint = true;
}
hasLastPoint = false;
}
}
//Convert the image to a png in memory
using (MemoryStream stream = new MemoryStream())
{
b.Save(stream, ImageFormat.Png);
png = stream.ToArray();
}
}
return Convert.ToBase64String(png);
}
public class Signature : I2DLineGraphic
{
public List<List<List<double>>> lines { get; set; }
}
interface I2DLineGraphic
{
List<List<List<double>>> lines { get; set; }
}
}
In the Wild
This tab highlights examples of this plugin in use "in the wild".
None as yet.
To add another example, please contact me (kbwood.au{at}gmail.com)
and provide the plugin name, the URL of your site, its title,
and a short description of its purpose and where/how the plugin is used.
Quick Reference
A full list of all possible settings is shown below.
Note that not all would apply in all cases. For more detail see the
documentation reference page.
$(selector).signature({
background: '#ffffff', // Colour of the background
color: '#000000', // Colour of the signature
thickness: 2, // Thickness of the lines
guideline: false, // Add a guide line or not?
guidelineColor: '#a0a0a0', // Guide line colour
guidelineOffset: 25, // Guide line offset from the bottom
guidelineIndent: 10, // Guide line indent from the edges
// Error message when no canvas
notAvailable: 'Your browser doesn\'t support signing',
scale: 1, // A scaling factor for rendering the signature (only applies to redraws).
syncField: null, // Selector for synchronised text field
syncFormat: 'JSON', // The output respresentation: 'JSON' (default), 'SVG', 'PNG', 'JPEG'
svgStyles: false, // True to use style attribute in SVG
change: null // Callback when signature changed
});
$.kbw.signature.options // Access settings for all instances
$(selector).signature('option', settings) // Change the instance settings
$(selector).signature('option', name, value) // Change an instance setting
$(selector).signature('option') // Retrieve the instance settings
$(selector).signature('option', name) // Retrieve an instance setting
$(selector).signature('enable') // Enable the signature functionality
$(selector).signature('disable') // Disable the signature functionality
$(selector).signature('destroy') // Remove the signature functionality
$(selector).signature('clear') // Erase any signature
$(selector).signature('isEmpty') // Determine if there is no signature
$(selector).signature('toDataURL') // Convert the signature to an image in a data: URL
$(selector).signature('toJSON') // Convert the signature to JSON
$(selector).signature('toSVG') // Convert the signature to SVG
$(selector).signature('draw', sig) // Re-draw the signature from JSON, SVG, or a data: URL
Usage
Include the jQuery and jQuery UI libraries and CSS in the head section of your page.