Diagramming for Java Swing, V4.1.1

MindFusion has released a new version of its Diagramming component for Java. It contains a few new features as well improvements of existing ones. Here are details:

Improved arrowhead rendering

  • arrowheads are rendered as a single path when possible and several arrowhead Shape definitions have been changed to implement mitered joints when HeadPen is set to a thick pen.
  • the point where end segments connect to arrowheads can be specified via the Shape.LinkSegmentInset property. Shape definitions from the ArrowHeads class set it to suitable default value. This allows using transparent or semi-transparent brushes without seeing the link line drawn behind arrowheads.
  • arrowhead shadows are no longer filled if the link’s EffectiveBrush is null or fully transparent.
  • IntermediateShape is now also rendered for Bezier links.
New vs. old arrowheads rendering

New vs. old arrowheads rendering

Miscellaneous

  • Set the LinkLabel.Brush property to fill the background of link labels.
  • Multiple-resize of rotated nodes fixed to apply same offsets in nodes’ local coordinate system.
  • Fixed a bug where setting the CaptionBackBrush property of containers would hide the caption-bar borders.
  • Java 8 update 20 fix from this patch now included in released version.
Labels at links

Labels at links

The trial version is available for download from the following link:

Download MindFusion.Diagramming for Java Swing, V4.1.1 Trial Version

Technical support
MindFusion puts special effort in providing high quality technical support to all its clients and evaluators. You can post your questions about Diagramming for Java or any other of our components at the forum, help desk or at support@mindfusion.eu. All support inquiries are usually answered within hours of being received.

About Diagramming for Java Swing: MindFusion.Diagramming for Java Swing provides your Java application with all necessary functionality to create and customize a diagram. The library is very easy to integrate and program. There are numerous utility methods, rich event set, more than 100 predefined shapes. The tool supports a variety of ways to render or export the diagram, advanced node types like TreeView nodes, hierarchical nodes, tables, container nodes and many more. There are 15 automatic layouts, various input / output options and fully customizable appearance. A detailed list with JDiagram’s features is uploaded here. You can check the online demo to see some of the functionality implemented.

Diagramming for Java Swing is royalty free, there are no distribution fees. Licenses depend on the count of developers using the tool – check here the prices.

New Versions for Diagramming for ASP.NET, JavaScript and ASP.NET MVC

MindFusion has released new versions of its diagramming components for JavaScript, ASP.NET and ASP.NET MVC. The new features are almost identical and we list them below:

Zoom control
You can use the ZoomControl class to let users change interactively the current zoom level and scroll position of a DiagramView. First, add a ZoomControl element to the page and set the control’s TargetId property to the id of a DiagramView. Then set the ZoomStep and ScrollStep properties to specify the amount added to diagram’s zoom level or scroll position by ZoomControl’s buttons. You can customize the control’s appearance by setting properties such as Fill, BorderColor, CornerRadius and TickPosition.

Note: The Zoom control is not available in JavaApplet mode in Diagramming for ASP.NET.

The zoom control.

The zoom control.

Shadow styles
The Diagram.ShadowsStyle property and ShadowsStyle enumeration let you switch shadow rendering order between rendering all shadows in a single background layer (OneLevel) and drawing each shadow close to its node, possibly overlapping other nodes (ZOrder). ShadowsStyle.None lets you disable shadows altogether.

Miscellaneous

  • Set the LinkLabel.Brush property to fill the background of link labels.
  • Number of link segments can now be set by calling the DiagramLink.setSegmentCount() method.
  • The BackgroundImageAlign property specifies the alignment of diagram’s BackgroundImage.
  • The TextPadding property specifies the padding distance between the borders of a node and its text.
  • Nodes of all classes can be rotated.

You can download the trie versions of the components from the following links:

Download Diagramming for ASP.NET, V5.4

Download Diagramming for JavaScript, V2.2

Download Diagramming for ASP.NET MVC, V2.3

About Diagramming for JavaScript, ASP.NET and ASP.NET MVC: Web developers can use the tools to draw impressive diagrams, schemes, flowcharts, trees and many more. They are browser independent, easy to use and integrate into any web application. The components supports a variety of predefined node shapes, customizable links, rich event set and many appearance options.

The user interaction model includes resizing / moving / selecting and modifying any diagram element. The tools boast an elegant API, which is documented in details as well numerous step-by-step guides and tutorials. Various samples are provided to let you learn quickly how to use the most important features each library. The diagramming components are not only the perfect choice for creating any type of diagram in the browser – they can also arrange it the way you wish with a mouse click using one of the automatic graph layout algorithms. For more details about the features of each component, please visit its page:

MindFusion ASP.NET Pack 2014.R3 Released

MindFusion has just released a new version of its component suit for ASP.NET. The pack features a brand new mapping control and new features in most of the existing controls. Here are details:

DiagrammingMindFusion.Diagramming for WebForms

Zoom control
(not available in JavaApplet mode)
The ZoomControl class lets users change interactively the current zoom level and scroll position of a DiagramView. It’s very easy to set up a ZoomControl – just add the element to the page and set the control’s TargetId property to the id of a DiagramView. You can customize the control with the ZoomStep and ScrollStep properties. They let you specify how the diagram’s zoom level or scroll position are changed by the ZoomControl’s buttons. You can further customize the control’s appearance by setting properties such as Fill, BorderColor, CornerRadius and TickPosition.

The zoom control.

The zoom control.

Canvas mode improvements

  • The ShadowsStyle property is now supported in Canvas mode.
  • You can set the number of link segments from the client-side scripts by calling the setSegmentCount method.
  • The BackgroundImageAlign property is now supported in Canvas mode.
  • The TextPadding property of items is now supported in Canvas mode.
  • Nodes of all classes can be rotated.

Improved arrowhead rendering

  • Arrowheads are rendered as a single path when possible and several arrowhead Shape definitions have been changed to implement mitered joints when HeadPen is set to a thick pen.
  • You can specify the point where end segments connect to arrowheads via the LinkSegmentInset property of shapes.
  • Arrowhead shadows are no longer filled if the link’s EffectiveBrush is null or fully transparent.
New vs. old arrowheads rendering

New vs. old arrowheads rendering

Miscellaneous

  • VisioExporter export speed has been improved greatly for large diagrams.
  • Improved DiagramLink rendering speed.
  • Multiple-resize of rotated nodes fixed to apply same offsets in nodes’ local coordinate system.
  • The Brush property of LinkLabel class lets you set background color for link labels.

Map-16x16MindFusion.Mapping for WebForms

MindFusion.Mapping for WebForms comprises a .NET server control and a class library that provides your application with great features for loading, customizing and displaying any type of regional, national or world map. Easy to integrate and program, this control gives you the power to build the perfect map according to your needs with minimal time and efforts from your side. You can:

  • add labels to map elements
  • access database data associated with map elements
  • choose the color scheme
  • set decorative elements like images, icons etc.

Map data can be loaded from the popular ESRI Shapefile format and you have at your disposal an impressive variety of *.shp files, which give you valuable data for any country in the world as well for selected cities, rivers, roads and other geographic objects. Data for the attributes of map elements can be loaded from a DBF file associated with each map. The control supports multiple layers so you can show several maps in a single view.

The mapping control.

The mapping control.

MindFusion.UI for WebForms

Slider control
The new Slider control represents a range slider, which can be used to specify a numeric value constrained between a minimum and maximum.

A UI demo with the slider control.

A UI demo with the slider control.

The trial version is available for download from this link:

Download MindFusion ASP.NET Pack 2014.R3

About MindFusion.WebForms Pack: A set of WebForms components that add great variety of features to your ASP.NET application with a few mouse clicks. The pack contains advanced components for diagramming, scheduling, charting and UI (Accordion, ColorPicker, TabControl, Window, WindowHost, DockControl, Button, Slideshow, Zoom and more). Each tool boasts easy to learn and use API and is quickly integrated into any web application that targets the ASP.NET platform. The controls support numerous options for styling, data import / export, user interaction and offer rich event set. There are plenty of samples and step-by-step tutorials as well detailed documentation.

Use the features page for each of the tools to find out more about its capabilities and the numerous ways it can boost your performance and speed up the development of your application:

Visit the buy page for details on the licensing scheme and prices. If you have questions please contact us. We shall be happy to assist you.

MindFusion.Spreadsheet for WinForms, V1.3

MindFusion has released a new version of its Spreadsheet for WinForms programming component. Here is an overview of the new features:

Grouping and Outlining
Rows and columns can now be grouped. You can group or ungroup a range of rows or columns with the Group or Ungroup methods of the RowRange and ColumnRange classes. You can set the outline level of a row/column or a range of rows/columns directly with the OutlineLevel property. Groups can be expanded and collapsed interactively, by clicking on the expand/collapse button in the view, or programmatically, by settings the IsCollapsed property of the respective row or column.

Grouping rows and columns in the spreadsheet.

Grouping rows and columns in the spreadsheet.

New Events

  • Several new events have been added to the WorkbookView and WorksheetView classes:
  • Header interaction notification events – ColumnsMoved, ColumnsResized, RowsMoved, and RowsResized.
  • Group interaction events – ColumnGroupCollapsed, ColumnGroupExpanded, ColumnOutlineLevelToggled, RowGroupCollapsed, RowGroupExpanded, and RowOutlineLevelToggled.
  • Custom drawing events – DrawColumn and DrawRow.

Miscellaneous
You can now move and copy spreadsheets to another workbook through the new Move and Copy methods.
Use the new EnableFormulaEvaluation property to disable formula evaluation across the workbook.
New ShowActiveCell and ShowSelection properties are added to the WorkbookView and WorksheetView classes.

You can download the trial version from the link below:

Download MindFusion.Spreadsheet for WinForms V1.3, Trial Version

If you require technical support, you can post a message at the forum, send us an e-mail at support@mindfusion.eu. or use the help desk. MindFusion takes special effort in providing fast and detailed answers to all inquiries that we receive.

About MindFusion.Spreadsheet for WinForms: An easy-to-use programming component suitable for building all types of spreadsheets fast and easy. The tool supports formulas, tool-tips, cell annotations, cell spanning, scrolling and many more. You can add charts and images as well use the flexible style system to design the perfect spreadsheet. The component supports full undo and redo as well copy and paste from Windows clipboard.
You can import spreadsheet data from CSV, XLSX or ODS files and export the final spreadsheet in a number of formats – as images, PDF or CSV, XLSX or ODS files. Various auxiliary forms help you quickly adjust the data and appearance of your spreadsheet. Read more about the features of the component here or check the license prices at the buy page.

Spreadsheet for WinForms is part of MindFusion Pack for WinForms, which offers other useful components that are of great use when you build any type of WinForms application – from a diagramming library to map control to gauges: check them here.

Diagramming for Android, V1.1.1

MindFusio has recently released a new version of Diagramming for Android programming library. Here are details about the new features:

Improved arrowhead rendering

  • Arrowheads are rendered as a single path when possible and several arrowhead Shape definitions have been changed to implement mitered joints when HeadPen is set to a thick pen.
  • The point where end segments connect to arrowheads can be specified via the LinkSegmentInset property of shapes. Shape definitions from the ArrowHeads class set it to suitable default value. This allows using transparent or semi-transparent brushes without seeing the link line drawn behind arrowheads.
  • Arrowhead shadows are no longer filled if the link’s EffectiveBrush is null or fully transparent.
  • IntermediateShape is now also rendered for Bezier links.
Arrowheads

Arrowheads

Miscellaneous

  • Link segments and node borders are now drawn anti-aliased.
  • Improved DiagramLink rendering speed.
  • Improved text layout in TextComponent and LinkLabel.
  • Fixed null-reference exception in some situations when tap is outside of diagram boundaries.

The new version is available for download from the following link:

Download Diagramming for Android, V1.1.1

If you require technical support, please use the forum or write us at support@mindfusion.eu. A help desk is also available. Providing fast and competent technical support is among the priorities of MindFusion. We answer most support inquiries within hours of receiving them.

About Diagramming for Android: A native Java class library, which provides your Android application with a powerful set of features for creating, customizing and displaying flowcharts, genealogy trees, class hierarchies, networks, algorithms and much more. The component offers a rich choice of predefined shapes, many pen and brush options as well HTML-like formatting of text. Diagram nodes can hold text as well images, can be semi-transparent and support glass reflection effects. The component offers various automatic layout algorithms and a rich user interaction model, which supports zoom, scroll, alignment guides and more. You can read the features list at the features web page of the component. For pricing and licenses check this link.

Real-time Chart: Amplification Plot

MindFusion.RealTimeCharting for WPF assembly lets you visualize huge (and by that we mean huge) amounts of data with no special load on the machine it runs on. We drew inspiration from a popular chart in molecular biology – Real-time PCR, which:

can provide a simple and elegant method for determining the amount of a target sequence or gene that is present in a sample.

More on the topic here.

Since we self-generate our data, the result graphics are not that much the real thing but they demonstrate the algorithm of building the chart pretty well. Let’s start:

1. Create the chart

Drag the RealTimeChart from the toolbox or add a reference to the MindFusion.RealTimeCharting.Wpf assembly. The chart has no initial data so we start with a simple X-axis on the screen. We name our chart “rtChart”.

2. Customizing the X-axis

The X-axis is accessible via the rtChart.XAxis property. It exposes many appearance settings, from which we start with Interval, Length and Origin – they will define our axis. When data accumulates, the initial axis labels shall be replaced with their updated values.

   rtChart.XAxis.Title = "Cycle";
   rtChart.XAxis.Interval = 2;
   rtChart.XAxis.Length = 50;
   rtChart.XAxis.Origin = 0;
   rtChart.XAxis.LabelFormat = "0";
   rtChart.XAxis.PinLabels = false;

It’s worth noting that we don’t pin labels e.g. they will move along the axis as new data is added. We need no trailing zeros, so the LabelFormat is “0”.

3. The Y-axes

There is no limit on how many Y-axis we will create. In our sample we will use two: one at each side of the chart plot area. We need two instances of the Axis class, which we add to YAxisCollection and Y2AxisCollection respectively. Before we add them, we set their appearance. We want tick marks and rotated title. Note that we align the second axis (Y2) to the right.

   Axis yAxis = new Axis();
   yAxis.Origin = 0.0;
   yAxis.Length = 1;
   yAxis.Interval = 0.1;
   yAxis.Title = "ΔRn";
   yAxis.TitleRotationAngle = -90.0;
   yAxis.TitleFontFamily = new FontFamily("Verdana");
   yAxis.LabelFontFamily = new FontFamily("Verdana");
   yAxis.TickLength = 5;
   yAxis.TitleOffset = 10;
   rtChart.YAxisCollection.Add(yAxis);          

   yAxis = new Axis();
   yAxis.Origin = 0.0;
   yAxis.Length = 100;
   yAxis.Interval = 10;
   yAxis.Title = "Fluorescene";
   yAxis.TitleRotationAngle = -90.0;
   yAxis.TitleFontFamily = new FontFamily("Verdana");
   yAxis.LabelFontFamily = new FontFamily("Verdana");
   yAxis.TickLength = 5;
   yAxis.TitleOffset = 10;
   yAxis.LabelHorizontalAlignment = HorizontalAlignment.Right;
   rtChart.Y2AxisCollection.Add(yAxis);

4. Chart series

We need four series – two of them will be bound to Y and two – to Y2. It’s important to note that axes must be initialized before the series, because each series is associated with a given Y-axis when created.

Each chart series is an instance of the Series class. We want to show scatters at each series – for that we use the ScatterType property. Since we plan to show a legend, it’s important to set the Title of each series – because this title will be used as a legend label. Here is sample code for the first series:

  series1 = new Series(rtChart.YAxisCollection[0])
  {
      Stroke = new SolidColorBrush(Colors.Green),
      ScatterStroke = new SolidColorBrush(Colors.Green),
      Fill = new SolidColorBrush(Colors.Green),
      ScatterType = ScatterType.Diamond,
      Title = "Sample 1",
      TitleFontFamily = new FontFamily("Verdana"),
      TitleFontSize = 12

   };

    .......
   rtChart.SeriesCollection.Add(series1);

5. Data

Data is added directly to the Series.Data property. You can add a batch of points or one point at a time. The property requires that you add a Point e.g. you must set the X and Y values simultaneously:

Point[] points1 = new Point[clusterSize];

//generate some dummy data
...

series1.Data.AddRange(points1);
rtChart.Commit(minNewX);

Don’t forget to call the Commit() method in one of its overloads – it signals to the chart that new data has been added and refresh is needed.

6. Final adjustments

We want a legend and we turn on ShowLegend. The initial result is a legend in 4 rows, which does not look beautifully on our chart. We plat for a while with LegendWidth and LegendHeight and come up with a satisfactory outlook for our legend – in two columns, centered below the plot area.

Adding a tooltip is also easy – we set ShowFallbackTooltip to true. Since the chart might have numerous Y-axis we must choose, which axis the tooltip is bound to. In our case it’s the first one:

    rtChart.TooltipVisibility = Visibility.Visible;
    rtChart.ShowFallbackTooltip = true;
    rtChart.TooltipAxis = rtChart.YAxisCollection[0];

    rtChart.ShowLegend = true;
    rtChart.LegendHeight = 70;

We adjust the grid according to the data we have:

    rtChart.MajorGridSizeY = 50;
    rtChart.MajorGridSizeX = 2;

7. That’s it

Here is the final result:

Real-time chart: amplification plot sample.

Real-time chart: amplification plot sample.

Of course, there are many other settings and possibilities in the control. You can download the sample and expand its functionality and appearance:

Real-time Chart – Amplification Plot Sample Download

MindFusion.RealTimeCharting for WPF is part of MindFusion.Charting for WPF component, which also includes MindFusion.Gauges for WPF. Check the trial version for more practical, beautiful and easy to build charts and gauges.

About MindFusion.RealTimeCharting for WPF: A WPF programming component, which has been designed and developed to render real-time charts with huge amounts of data in a fast and efficient manner. The component uses innovative approach to draw the chart graphics, which forgoes the traditional constructing of a tree with the visual elements in WPF. This way CPU load remains minimal and graphics of tens of thousands of points are rendered with impressive speed. The tool supports unlimited number of Y and Y2 axes, legend, tooltip, background image, grid and more.

About MindFusion.Charting for Wpf: A programming component that combines powerful charting capabilities with an elegant API and easy use. Among the features of the control are fully customizable grid, positive and negative values on all chart axes, 3D charts, gauges and many more – read a detailed list here.

The control provides detailed documentation and various samples that demonstrate how to customize every type of chart. It supports a wide range of 2D and 3D charts including bar, line, radar, bubble pie etc. You can add tooltips, define themes, perform hit testing, zoom and more.

Combine layout algorithms

Apply TreeLayout twice to arrange a genealogy tree

In a series of posts we’ll explore ways to combine graph layout algorithms for various purposes, such as improving layout speed or achieving specific layout constraints.

In this example we’ll show how to apply two TreeLayout instances with different settings to arrange a genealogy tree. The genealogy tree is focused on specific person, with several levels of ancestors drawn above and descendants drawn below. A Visual Studio sample project containing the code from this post is available for download here:

GenealogyLayout.zip

As a start, let’s define a new node class that will draw a person’s photo and name inside a frame, along with their partners’. This will simplify our layout code since we won’t have to take care of keeping partner nodes close to each other:

class GenealogyNode : DiagramNode
{
	public List<Person> Partners { get; set; }

	public override void DrawLocal(IGraphics graphics, RenderOptions options)
	{
		float relationLinkLen = Bounds.Width / 7;
		int relations = Partners.Count - 1;
		float personViewWidth = Bounds.Width - relations * relationLinkLen;
		personViewWidth /= Partners.Count;

		var rect = GetLocalBounds();
		rect.Width = personViewWidth;
		for (int i = 0; i < Partners.Count; i++)
		{
			DrawPerson(Partners[i], graphics, rect);

			if (i < Partners.Count - 1)
			{
				float rx = rect.Right;
				float ry = rect.Y + 4 * rect.Height / 5;
				rect.X += personViewWidth + relationLinkLen;
				graphics.DrawLine(Pens.Gray, rx, ry, rect.X, ry);
			}
		}
	}

	public override void DrawShadowLocal(IGraphics graphics, RenderOptions options)
	{
	}

	void DrawPerson(Person person, IGraphics graphics, RectangleF rect)
	{
		const float labelHeight = 5;
		const float padding = 3;

		// draw name
		var labelRect = RectangleF.FromLTRB(
			rect.Left,
			rect.Bottom - labelHeight,
			rect.Right,
			rect.Bottom);

		graphics.DrawString(person.Name,
			EffectiveFont, Brushes.Black, labelRect,
			new StringFormat { Alignment = StringAlignment.Center });

		// draw image
		var imageRect = rect;
		imageRect.Height -= labelHeight + padding;

		Utilities.DrawImage(graphics, person.Image, imageRect, ImageAlign.Fit);

		// draw frame
		var frameColor = person.Gender == Gender.Female ?
			Color.Red : Color.BlueViolet;
		var framePen = new System.Drawing.Pen(frameColor, 0);
		graphics.DrawRectangle(framePen, rect);
		framePen.Dispose();
	}
}

Alternatively, we could draw a single person per node instead, placing partners’ nodes close to each other, grouping them using AttachTo method, and later running TreeLayout with its KeepGroupLayout property enabled.

Now to generate a sample tree, we’ll define recursive methods that will create specified number of ancestor pairs (GenerateAncestors) and create random number of descendants (GenerateDescendants):

void GenerateAncestors(GenealogyNode node, int levels)
{
	if (levels == 0)
		return;
	for (int i = 0; i < 2; i++)
	{
		var p = AddPair();
		var link = diagram.Factory.CreateDiagramLink(p, node);
		link.DestinationAnchor = i;
		link.OriginAnchor = 2;
		GenerateAncestors(p, levels - 1);
	}
}

void GenerateDescendants(GenealogyNode node, int levels)
{
	if (levels == 0)
		return;
	int children = random.Next(1, 5);
	for (int i = 0; i < children; i++)
	{
		int r = random.Next(0, 3);
		if (r == 2)
		{
			var p = AddPair();
			var link = diagram.Factory.CreateDiagramLink(node, p);
			link.OriginAnchor = 2;
			link.DestinationAnchor = 0;
			GenerateDescendants(p, levels - 1);
		}
		else if (r == 1)
		{
			var p = new Person { Name = "daughter", Gender = Gender.Female, Image = fImage };
			var childNode = AddNode(p);
			diagram.Factory.CreateDiagramLink(node, childNode);
		}
		else if (r == 0)
		{
			var p = new Person { Name = "son", Gender = Gender.Male, Image = mImage };
			var childNode = AddNode(p);
			diagram.Factory.CreateDiagramLink(node, childNode);
		}
	}
}

GenealogyNode AddPair()
{
	var p1 = new Person { Name = "mom", Gender = Gender.Female, Image = fImage };
	var p2 = new Person { Name = "dad", Gender = Gender.Male, Image = mImage };
	return AddNode(p1, p2);
}

GenealogyNode AddNode(Person p)
{
	var bounds = new RectangleF(0, 0, 30, 40);

	var node = new GenealogyNode();
	node.Bounds = bounds;
	node.Partners = new List<Person> { p };
	node.AnchorPattern = AnchorPattern.TopInBottomOut;
	diagram.Nodes.Add(node);
	return node;
}

GenealogyNode AddNode(Person p1, Person p2)
{
	var bounds = new RectangleF(0, 0, 70, 40);

	var node = new GenealogyNode();
	node.Bounds = bounds;
	node.Partners = new List<Person> { p1, p2 };
	node.AnchorPattern = PairPattern;
	diagram.Nodes.Add(node);
	return node;
}

Finally we run TreeLayout twice with specified root node, arranging ancestor nodes above the root and descendant nodes below it, creating the genealogy drawing shown below:

private void GenealogyForm_Load(object sender, EventArgs e)
{
	var root = AddPair();
	GenerateAncestors(root, 2);
	GenerateDescendants(root, 3);

	var l1 = new TreeLayout();
	l1.ReversedLinks = true;
	l1.Direction = TreeLayoutDirections.BottomToTop;
	l1.Anchoring = Anchoring.Keep;
	l1.LevelDistance *= 2;
	l1.NodeDistance *= 1.4f;
	l1.LinkStyle = TreeLayoutLinkType.Cascading3;
	l1.Arrange(diagram);

	var l2 = new TreeLayout();
	l2.Root = root;
	l2.KeepRootPosition = true;
	l2.Anchoring = Anchoring.Keep;
	l2.LevelDistance *= 2;
	l2.NodeDistance *= 1.4f;
	l2.LinkStyle = TreeLayoutLinkType.Cascading3;
	l2.Arrange(diagram);

	diagram.ResizeToFitItems(5);
	//diagramView.ZoomToFit();
}

genealogy tree layout

The code above uses MindFusion’s .NET API and can be used with Windows Forms, WPF, Silverlight and ASP.NET diagramming components. The Java API for Android and desktop Swing application will look similar, with setter method calls instead of property assignments.

You can download the trial version of any MindFusion.Diagramming component from this page.

Enjoy!

Diagramming for Windows Forms, V6.3.1

MindFusion has just released a new version of its popular Diagramming for WinForms component. Here are details about the new features:

Improved arrowhead rendering
Arrowhead rendering has been improved as you can see in following new vs. old version image.

  • arrowheads are rendered as a single path when possible and several arrowhead Shape definitions has been changed to implement mitered joints when HeadPen is set to a thick pen.
  • the point where end segments connect to arrowheads can be specified via the Shape.LinkSegmentInset property. Shape definitions from the Arrowheads class set it to suitable default value. This allows using transparent or semi-transparent brushes without seeing the link line drawn behind arrowheads.
  • arrowhead shadows are no longer filled if the link’s EffectiveBrush is null or fully transparent.
New vs. old arrowheads

New vs. old arrowheads

Miscellaneous

  • VisioExporter export speed has been improved greatly for large diagrams.
  • For consistence with MindFusion libraries for other platforms, BackBrush in default diagram style has been changed to white brush.
  • Improved DiagramLink rendering speed.
  • Multiple-resize of rotated nodes fixed to apply same offsets in nodes’ local coordinate system.
  • Fixed KeepInsideParent constraint for rotated parent nodes.

You can download the trial version from the link below:

Diagramming for WinForms, V6.3.1

If you have questions or run into problems using the component you can use the Diagramming for WinForms forum, the help desk or write us at support@mindfusion.eu. Our support team will be pleased to help you.

About MindFusion.Diagramming for WinForms: A programming component that provides any WinForms application with a full set of features for creating and customizing all types of diagrams, flowcharts, schemes, hierarchies, trees, graphs etc. The control provides numerous ways to save and load a diagram, six auxiliary controls and more than 12 automatic graph layout algorithms. Diagram elements include scrollable tables, container nodes, multi-segment arrows, custom diagram item types and many more. Further details here.

Diagramming for WinForms is a royalty-free component, clients get 12 month upgrade subscription when buying a license. The source code is also available for purchase. Visit the buy page for a list with the current license prices.

Charting for WPF, V1.9

MindFusion is pleased to announce a new release of Charting for WPF programming component. Here is an overview of the new features:

Real-time Chart
The RealTimeChart control is optimized to render animated line chart graphics of large amounts of data. That’s implemented by moving already rendered elements from the WPF visual tree to a cache bitmap, relying that new data is added incrementally rather than changing coordinates of old data points. The library also offers various customization options for the chart – scatters, multiple legends, multiple Y and Y2 axes, custom labels, tooltips, grid.

The real time chart.

The real time chart.

3D Charts

  • All 3D charts now support unlimited number of series.
  • New property Lights holds a collection of Light objects instead of the LightType property.
  • Detailed hit testing, which returns a ChartHitTestResult3D that contains the clicked 3D point, the normalized 3D point, a collection of chart elements (if found), and the nearest peak (in surface charts).
  • AllowMeshSelection property, which when enabled allows selection of mesh objects with a mouse click.
  • The MeshSelectionBrush sets the brush for the selection.
  • Behavior3D property, which lets you choose how the chart responds to mouse interactions.
  • Improved performance for all chart types.

Surface Charts

  • SurfaceType property, which sets whether scatters or surface is drawn.
  • SurfaceSeries.GroundLevelMargin property, which sets the GroundLevel-offset.
  • Each Series3D can be clipped in a given range with the ClipMinimum and ClipMaximum properties.
  • TextureType property sets the texture of the chart – Brush or ColorMap.
  • New ColorMapList property, which sets a Color map with arbitrary colors and offsets.
  • CloseModelFigure property, which closes the sides of the model if enabled.
A surface chart

A surface chart

Miscellaneous

  • ShowCrossHair renders a cross hair that will trace the mouse position over the plot area.
  • Enable the LineSeries.Curve property to draws lines as canonical splines.

You can read further details about the release and the other new features at the news section in the Charting forum. A trial version is available for download from here:

Download MindFusion.Charting for WPF 1.9 Trial Version

You are welcome to contact us with any questions, problems or inquiries about the Charting for Wpf control or any other of our products. MindFusion has always put special emphasis on providing excellent customer support and we usually answer your inquiries in a few hours of receiving them.

About MindFusion.Charting for Wpf: A programming component that combines powerful charting capabilities with an elegant API and easy use. Among the features of the control are fully customizable grid, positive and negative values on all chart axes, 3D charts, gauges and many more – read a detailed list here.

The control provides detailed documentation and various samples that demonstrate how to customize every type of chart. It supports a wide range of 2D and 3D charts including bar, line, radar, bubble pie etc. You can add tooltips, define themes, perform hit testing, zoom and more.

Combine layout algorithms

Use OrthogonalLayout to generate initial placement for SpringLayout

In a series of posts we’ll explore ways to combine graph layout algorithms for various purposes, such as improving layout speed or achieving specific layout constraints.

In this example we’ll show how to apply OrthogonalLayout as preprocessing step for SpringLayout used to minimize edge crossings. A problem with force-directed layout algorithms such as SpringLayout is that they can reach equilibrium of the simulated forces while there are link crossings present. However if the simulation starts from an initial layout that has minimal number of crossing, it will tend to reach balance without introducing new crossings. So we can use any of the layout algorithms used for arranging planar graphs (OrthogonalLayout, TriangularLayout, CascadingLayout) to create the initial configuration for SpringLayout.

OrthogonalLayout is designed to create planar drawings of graphs (having no crossing links at all if possible) where edge segments are either horizontal or vertical. For some types of diagrams, such as flowcharts, you might use OrthogonalLayout as is. However in many cases you might prefer SpringLayout, e.g. in order to achieve aesthetic criteria like uniform edge lengths, or to conform to accepted drawing conventions such as the one used to present state machines. So when you know your graphs are planar or close to planar, you can run OrthogonalLayout as pre-processing step, and then run the physical-force simulation using SpringLayout to achieve straight-line uniform length drawings:

void ApplySpringLayout(bool preArrange)
{
    if (preArrange)
    {
        var tl = new OrthogonalLayout();
        tl.Arrange(diagram);
    }

    var sl = new SpringLayout();
    sl.Randomize = false;
    sl.MinimizeCrossings = true;
    sl.IterationCount = 50;
    sl.Arrange(diagram);

    diagramView.ZoomToFit();
}

Here are several examples of the method results when called respectively with false (on the left side) and with true (on the right side of image). Note that for such small graphs SpringLayout will probably remove the crossings if left to run for more iterations, but in the general case and with larger graphs that’s not guaranteed.

1

2

3

The code above uses MindFusion’s .NET API and can be used with Windows Forms, WPF, Silverlight and ASP.NET diagramming components. The Java API for Android and desktop Swing application will look similar, with setter method calls instead of property assignments.

Enjoy!