Found 6685 Articles for Javascript

FabricJS – Implementing object duplication programmatically on a Polygon?

Rahul Gurung
Updated on 02-Jan-2023 15:04:10

231 Views

We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight-line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. In order to implement object duplication programmatically we need to implement duplicate control using the clone method Syntax clone( callback: Object, propertiesToInclude: Array) Parameters Callback (optional) − This parameter is a callback function which is invoked with a clone. propertiesToInclude (optional) − This parameter ... Read More

FabricJS – Implementing delete operation only for selected object programmatically

Rahul Gurung
Updated on 02-Jan-2023 15:00:45

1K+ Views

We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. In order to implement delete operation only for a selected object, we need to use the remove method. Syntax remove( ...Object): Self Parameters Object − This property accepts a fabric.Object value which is the object that we want to remove. Example 1: ... Read More

FabricJS – How to set Polygon objects properties using function instead of constructor?

Rahul Gurung
Updated on 02-Jan-2023 14:44:58

96 Views

We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. Syntax set(key: String, value: String | Boolean | Number | Object | Function) Parameters key − This parameter accepts an String which specifies the property we want to set. value − This parameter accepts the value to be set for the property. ... Read More

FabricJS – How to identify if the given object is of a Polygon instance?

Rahul Gurung
Updated on 02-Jan-2023 14:40:27

89 Views

We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. In order to identify if the given object is of a Polygon instance, we use the isType method. This method checks if the object is of the specified type and returns a true or false value depending on that. Syntax isType(type: String): Boolean Parameters ... Read More

FabricJS – How to check if a Polygon Object Intersects with Another Object?

Rahul Gurung
Updated on 29-Dec-2022 17:52:00

639 Views

We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. In order to check if a Polygon object intersects with another object, we use the intersectsWithObject method. This method checks whether the object that is passed to it, intersects with the polygon object. Syntax intersectsWithObject(other: Object, absolute: Boolean, calculate: Boolean ): Boolean Parameters ... Read More

FabricJS – Finding the Transform Matrix that Represents the Current Transformations for a Polygon Object?

Rahul Gurung
Updated on 29-Dec-2022 17:53:19

373 Views

We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. In order to find the transform matrix which represents current transformations, we use the calcOwnMatrix method. Syntax calcOwnMatrix(): Array Example 1: Using the calcOwnMatrix Method Let’s see a code example of how we can find the transform matrix which represents current transformations of a ... Read More

FabricJS – Finding the drawing context of a Polygon object converted to an HTMLCanvasElement?

Rahul Gurung
Updated on 29-Dec-2022 17:59:52

381 Views

We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. In order to convert a polygon object into HTMLCanvasElement we use the toCanvasElement method. It returns the DOM element of type HTMLCanvasElement, an interface which inherits its properties and methods from the HTMLElement interface. We use the getContext method to find a drawing context on ... Read More

FabricJS - Finding the dimensions of a Polygon object converted to an HTMLCanvasElement?

Rahul Gurung
Updated on 29-Dec-2022 18:00:21

145 Views

We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. In order to convert a polygon object into HTMLCanvasElement we use the toCanvasElement method. It returns the DOM element of type HTMLCanvasElement, an interface which inherits its properties and methods from the HTMLElement interface. We use the width and height properties of HTMLCanvasElement that it inherits ... Read More

FabricJS – Finding the data url after converting a Polygon object to an HTMLCanvasElement?

Rahul Gurung
Updated on 29-Dec-2022 18:31:18

396 Views

We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. In order to convert a polygon object into HTMLCanvasElement we use the toCanvasElement method. It returns the DOM element of type HTMLCanvasElement, an interface which inherits its properties and methods from the HTMLElement interface. We use the toDataURL method to find the data-URL like representation of ... Read More

FabricJS – Finding the current cursor position on the clicked Polygon object?

Rahul Gurung
Updated on 29-Dec-2022 18:31:50

652 Views

We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. In order to find the current cursor position on the clicked Polygon object, we use the getLocalPointer method. SyntaxgetLocalPointer( e, pointer ): Object Parameters e − This parameter accepts an Event which denotes the event to operate upon. pointer(optional)− This parameter is an ... Read More

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