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Engineering
Powerful tools for easy or complex engineering tasks.
Graphics Editor (GEDI)
Used for creating and editing panels, provides tools for creating and configuring graphic objects.
Complex graphics objects
EWO Basics and Development
Maps Widget (EWO)
Maps Widget - Properties and Functions
removeLayer()

Version Information
Release Notes, Update information, Certifications and Frequently Asked Questions.
Concepts
Your first step into modern and powerful process visualization.
Deployment
Topics, you need to know, before using WinCC OA.
Security
Go beyond the norm in cybersecurity.
Engineering
Powerful tools for easy or complex engineering tasks.
- Project Administration
  The chapter contains a description of the process monitor as well as the project administration.
- Graphics Editor (GEDI)
  Used for creating and editing panels, provides tools for creating and configuring graphic objects.
  - GEDI, basics
  - The catalog window
  - The Script Editor
  - The Property Sheet
  - Creating graphics objects
  - Simple graphics objects
  - Complex graphics objects
  - Simple Configuration
    Simple configuration windows and panels support you in combining events (such as a mouse click) with different actions such as setting data point values, showing panels or changing attributes.
  - ScriptWizard
    Simple wizard for creating graphical user interfaces for users without prior programming knowledge.
  - Version control, basics
  - Style Sheets, basics
  - Standard Symbols (STD_Symbols)
    Symbol library consisting of graphics objects for the quick display and design of system diagrams.
  - Expandability of GEDI
  - Simple Symbols, basics
    The "Simple Symbols" functionality is used to simply assign corresponding symbols to data point types and increase the working comfort when working with different symbols.
  - Layout management
    Layouts change the size and position of objects according to parameters previously defined in the GEDI.
  - Object-Oriented Panel References
    Reusable objects built with the GEDI tools. Insert them within an existing panel to provide a graphical element.
- System Management
  The System Management is the central administrative unit for WinCC OA Systems.
- Wizard Framework
  Used for easy creation of wizards in a uniform layout style. The key elements "Navigation Bar" and "Bottom Bar" can be customized to fit the needs of the custom wizard.
- XML Panel Format
  The XML (Extensible Markup Language) panel format allows creating WinCC OA panels.
- Simple Symbols, basics
  The "Simple Symbols" functionality is used to simply assign corresponding symbols to data point types and increase the working comfort when working with different symbols.
- ScriptWizard
  Simple wizard for creating graphical user interfaces for users without prior programming knowledge.
- Panel topology/Group alert facility
  Tree structure for process panels with integrated group alert system
- Object-Oriented Panel References
  Reusable objects built with the GEDI tools. Insert them within an existing panel to provide a graphical element.
- Multilingual Projects
  WinCC OA is designed to provide both Native Language Support and Multi Language Support.
- Translator
  The WinCC OA Translator functionality supports you in creating and maintaining multilingual projects. It offers a convenient interface for translation of reusable terms.
- Layout management
  Layouts change the size and position of objects according to parameters previously defined in the GEDI.
- Generic Dialog Framework
  The Generic Dialog Framework is an easy way to generate your own dialogs by adjusting a set of prefabricated panels.
- Simple Configuration
  Simple configuration windows and panels support you in combining events (such as a mouse click) with different actions such as setting data point values, showing panels or changing attributes.
Data Management
Classify, structure and archive your data.
Business Logic / Control
Endless possibilities in data processing for your projects.
Data Visualization
User interfaces, Trends and Reports for every purpose and device.
Southbound Interfaces
The process connection to the actual machines/sensors.
Northbound Interfaces
Your portal to the cloud or supervising systems.
Web Connectivity / Network Interfaces
Data exchange, APIs and web technologies
User Management
All about authorization, authentication and login-customization.
Availability
How to get your system uptime to the maximum.
Reporting
Create state of the art project reports without limits.
Addons
Useful tools and enhancements for special demands.
Reference Tables
Detailed and extensive content for special project adaptation.
Videos & Tutorials
Explore the capabilities of WinCC OA with our carefully selected collection of video tutorials and guides.
WinCC OA Documentation
Basic information about terms and functions within the documentation.
Disclaimer
A brief clarification of liability exclusions or legal notices.

removeLayer()

This function removes a layer from the Maps EWO.

Synopsis

bool removeLayer(int layerId)

Parameters


Parameter	Description
layerId	layer number

Description

This function is used to remove layers and all the associated symbols, polygons and lines from the Maps EWO. It returns false in case of an error.

The function removes a layer. Its symbols, polygons and lines are lost as well.

Example

int iLayer = Maps_ewo1.addEmptyLayer("New Layer");
...
Maps_ewo1.removeLayer(iLayer);

Assignment

Maps Widget