Google Maps Library

cadetill's blog Copyright © Xavier Martínez (cadetill)

Class TGMRestriction

Description
Hierarchy
Fields
Methods
Properties

Unit

GMLib.Map

Declaration

type TGMRestriction = class(TGMPersistentStr)

Description

google.maps.MapRestriction inteface from Google Maps API.

A restriction that can be applied to the Map. The map's viewport will not exceed these restrictions.

More information at google.maps.MapRestriction interface

Hierarchy

Overview

Methods

Public constructor Create(AOwner: TPersistent); override;
Public destructor Destroy; override;
Public function PropToString: string; override;
Public procedure Assign(Source: TPersistent); override;

Properties

Public property APIUrl;
Published property Enabled: Boolean read FEnabled write SetEnabled;
Published property LatLngBounds: TGMLatLngBounds read FLatLngBounds write FLatLngBounds;
Published property StrictBounds: Boolean read FStrictBounds write SetStrictBounds;

Description

Methods

Public constructor Create(AOwner: TPersistent); override;

Class constructor.

Parameters
AOwner
Owner of the object.
Public destructor Destroy; override;

Destructor class.

Public function PropToString: string; override;

Converts all class properties values to a string separated by comma used to send values to a JavaScript function.

Returns

string with all properties.

Public procedure Assign(Source: TPersistent); override;

Call Assign to copy the properties or other attributes form an object to another.

The standard form of a call to Assign method is
     Destination.Assign(Source);
which tells the Destination object to copy the contents of the Source object to itself.

Parameters
Source
Object to copy the content.

Properties

Public property APIUrl;

URL to Google Maps API page.

Published property Enabled: Boolean read FEnabled write SetEnabled;

Enables or disables TGMRestriction property.

Published property LatLngBounds: TGMLatLngBounds read FLatLngBounds write FLatLngBounds;

When set, a user can only pan and zoom inside the given bounds.

Bounds can restrict both longitude and latitude, or can restrict latitude only.

Published property StrictBounds: Boolean read FStrictBounds write SetStrictBounds;

Bounds can be made more restrictive by setting the strictBounds flag to true.

This reduces how far a user can zoom out, ensuring that everything outside of the restricted bounds stays hidden. The default is false, meaning that a user can zoom out until the entire bounded area is in view, possibly including areas outside the bounded area.

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