These components enable enable developers to add diagramming capabilities to their applications. They are oriented towards the creation of diagrams that describe objects, relationships and flows such as work flow diagrams, data entity relationship diagrams (ERD), flowcharts and organisation heirarchy diagrams. For numeric applications such as the production of graphs, see Graphing & Charting.
Solution Center - Code examples using Diagramming Components
 Building and Displaying an organization chart

Delphi Diagramming Components by Developer Express

ExpressFlowChart for VCL V1.34

The ExpressFlowChart is designed to help you present charts, schemes, hierarchies, and graphs of any complexity with minimal coding and programming effort.

ExpressOrgChart for VCL V1.31

The ExpressOrgChart is a fully functional VCL component (both data aware and non data aware), designed for the display and editing of hierarchical tree data structures such as the contents of a book or file system on a disc.

Delphi Diagramming Components by JGraph Ltd

mxGraph 1.0

Based on the latest web technologies, mxGraph is the ultimate solution for drawing diagrams in a browser. Using open standards, mxGraph does not depend on any third-party plugins and proprietary software. mxGraph works straight out of the box, no client configuration, no plugin installation, no platform dependencies - it just works!

Delphi Diagramming Components by plexityHide.com

phGantt Time Package V3.2.1

The phGantt and phSchema-components are part of the plexityHide phGantTimePackage. It is a fast, fully object-oriented ActiveX component, written in Delphi 6.0 and compatible with all ActiveX-containers and .NET. (VB6, FoxPro, Access, Delphi, BCB, PowerBuilder)

Delphi Diagramming Components by tmssoftware.com

TMS Diagram Studio V2.4

Add diagram and flowchart capabilities to your application. Features Include - Diagram editing behaviour similar to standard diagramming applications - Support clipboard operations - Block gradient, shadow and bitmap - Full block customization: pen, brush, color, selection color, minimum width and height see below for more

Delphi Diagramming Components by Nevron

Nevron .NET Vision Q1 2008 -  Nevron .NET Vision is the ultimate suite for creating unique and powerful data presentation applications with spectacular data visualization capabilities. The Suite features Nevron Chart for .NET, Nevron Diagram for .NET and Nevron User Interface for .NET. The well designed object model, numerous features and unmatched presentation "out of the box" quality makes the visualization of complex data easy and comprehensible.