Needles
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Topic Overview

Purpose

This topic provides an introductory overview of needle shapes available with the IGLinearGaugeView™ control.

In this topic

This topic contains the following sections:


Needles

Introduction

A linear gauge needle is a visual element used to signify a set value. The supported needle shapes shown in Needle shape types are set using the needleShape property. If needleShape is not set, the default needle IGLinearGraphNeedleShapeTrapezoid is used. The linear gauge needle can have its appearance customized through the following properties.

  • needleBrush
  • needleInnerExtent
  • needleOuterExtent
  • needleOutline
  • needleStrokeThickness

Needle shape types

The following table contains supported marker shapes and their associated type name.

Needle Shape Name

Preview

IGLinearGraphNeedleShapeCustom

No preview shown. Use these additional needle properties to create a custom needle.

  • needleInnerBaseWidth
  • needleInnerPointExtent
  • needleInnerPointWidth
  • needleOuterBaseWidth
  • needleOuterPointExtent
  • needleOuterPointWidth

IGLinearGraphNeedleShapeRectangle

IGLinearGraphNeedleShapeTriangle

IGLinearGraphNeedleShapeNeedle

IGLinearGraphNeedleShapeTrapezoid



Related Content

Topics

The following topic provides additional information related to this topic.

Topic

Purpose

This topic serves as a gateway to the features and functionality of the IGLinearGaugeView control.