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AnnSvgThumbStyle Object

Summary

Base class for all SVG renderers thumb styles.

Syntax

TypeScript

JavaScript

function lt.Annotations.Rendering.AnnSvgThumbStyle 
	implements IAnnThumbStyle

class lt.Annotations.Rendering.AnnSvgThumbStyle() 
	implements IAnnThumbStyle

Remarks

AnnSvgThumbStyle is the default thumb style and renderer for the annotation objects when used with AnnSvgRenderingEngine. This is an abstract class that will implement most common operations, while actual rendering of the object is implemented in the derived class for the objects.

LEADTOOLS ships with the following thumb style implementations:

AnnSvgRectangleThumbStyle: Rectangle thumb style
AnnSvgEllipseThumbStyle: Ellipse thumb style

AnnSvgObjectRenderer is the class responsible for rendering annotation objects, as well as rendering the objects themselves, the object renderer is responsible for rendering the thumbs used when the object is in a selected state.

The framework will call AnnSvgObjectRenderer.RenderThumbs and AnnSvgObjectRenderer.RenderRotatePointThumbs to render the selection and rotation thumbs at a specified location. These method will then call the AnnSvgThumbStyle.Render of its LocationsThumbStyle, RotateCenterThumbStyle and RotateGripperThumbStyle objects to render the actual thumbs.

The annotations thumb style contains the following members:

Member	Description
Size	The size of the thumb in container units.
Fill	The style to use for filling the thumb.
Stroke	The style to use for drawing the thumb.
Render	Called by the framework to render a thumb at a specified location.
HitTest	Called by the framework to check if a test point is on top of the thumb if rendered at a specified location.

When implementing a user-defined thumb style, one of the tasks required is to render the thumbs of an annotation object. You can derive your thumb style from this class and use its helper methods. For more information, refer to Implementing User-Defined Thumb Styles With LEADTOOLS Annotations.

Requirements

Target Platforms

Reference

AnnSvgThumbStyle Members

Leadtools.Annotations.Rendering Namespace

Programming with LEADTOOLS Annotations

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Help Version 21.0.2021.6.30

Leadtools.Annotations.Rendering.JavaScript Assembly

Introduction

Getting Started

Namespaces

Leadtools.Annotations.Rendering Namespace

Assemblies