Using igp.net

Installation

Just extract the downloaded archive eg. igp.net-0.9.0.50.zip wherever you want. Then just run igp.net.exe. The program does not use Windows registry - all settings are stored in igp.ini file.

Introduction

igp.net user interface consists of 3 main windows:

• Main window (blue)
• Item picker (red)
• Item editor (green)

Main Window

The main window contains the plotted graph and a menu with access to features like creating new projects, loading old ones, saving bitmaps, etc.

Graph area supports mouse interactions:

• use left mouse button to interact with currently edited item
• use right mouse button to pan across the whole graph
• use middle mouse button to change zoom

Item interaction

Item interaction is performed using left mouse button. In case current item is the view (View tab selected in Item Editor), you can:

• move the axes,
• move the legend,
• drag any of the view ranges' limits.

More information on the view can be found in ControllingTheView.

In case you're editing a point set, the following item interaction modes are available:

• Add - use to add new points to a point set,
• Edit - use to move selected points,
• Select - use to select points.

Functions (both Function and Polynomial types) support the following user interactions:

• Evaluate - use to show an evaluation cursor, press left mouse button to show a tangent
• Find root - use to find a single root of a function; click left mouse button on the left side of a root and drag to the right; see NumericGuide for calculation details
• Find extremum - use to find a single extremum; handling is analogyous to find root

Item Picker

Item picker provides a list of defined items. It allows to add, delete and manage items. In order to add a new item, use the context menu of the list (green). To edit an item double click it's row header (red) or use a corresponding context menu entry.

Item Editor

Item editor is organized in tabs. It always contains a tab with properties of the view. Additional tab depends on the item being edited at the moment. Most of the controls provide interactive preview of entered changes with any errors indicated by red control background.

Item editor also allows to choose desired item interaction mode. See paragraph on item interaction.

Handling Project Files

igp.net project files are plain text files, so feel free to edit them using a notepad if you need. Each item is represented by configuration values placed between <></> delimiters.

You can use your project files as item repositories. Use the import feature to select which item configurations should be applied - a short tooltip presents the configuration of each item (the exact content of it's configuration from the project file).