React Diagram - customShapes

Use the customShapes property to extend a collection of built-in shapes with custom shapes.

Use the toolbox property to add the custom shapes to the toolbox.

$(function() {
    var diagram = $("#diagram").dxDiagram({
        customShapes: [{
            category: "hardware",
            type: "internet",
            title: "Internet",
            backgroundImageUrl: "images/shapes/internet.svg",
            backgroundImageLeft: 0.15,
            backgroundImageTop: 0,
            backgroundImageWidth: 0.7,
            backgroundImageHeight: 0.7,
            defaultWidth: 0.75,
            defaultHeight: 0.75,
            defaultText: "Internet",
            allowEditText: true,
            textLeft: 0,
            textTop: 0.7,
            textWidth: 1,
            textHeight: 0.3,
            connectionPoints: [
                { x: 0.5, y: 0 },
                { x: 0.9, y: 0.5 },
                { x: 0.5, y: 1 },
                { x: 0.1, y: 0.5 }
            ]
        },
        ...
    ],
    toolbox: {
        groups: [{ category: "hardware", title: "Hardware" }]
    }
}).dxDiagram("instance");

<dx-diagram #diagram id="diagram">
    <dxi-custom-shape 
        category="hardware"
        type="internet"
        title="Internet"
        backgroundImageUrl="images/shapes/internet.svg"
        [backgroundImageLeft]="0.15"
        [backgroundImageTop]="0"
        [backgroundImageWidth]="0.7"
        [backgroundImageHeight]="0.7"
        [defaultWidth]="0.75"
        [defaultHeight]="0.75"
        defaultText="Internet"
        [allowEditText]="false"
        [textLeft]="0"
        [textTop]="0.7"
        [textWidth]="1"
        [textHeight]="0.3">
        <dxi-connection-point [x]="0.5" [y]="0"></dxi-connection-point>
        <dxi-connection-point [x]="0.9" [y]="0.5"></dxi-connection-point>
        <dxi-connection-point [x]="0.5" [y]="1"></dxi-connection-point>
        <dxi-connection-point [x]="0.1" [y]="0.5"></dxi-connection-point>
    </dxi-custom-shape>
    ...
    <dxo-toolbox>
        <dxi-group category="hardware" title="Hardware"></dxi-group>
    </dxo-toolbox>
</dx-diagram>

import { NgModule, Component, ViewChild, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { HttpClient, HttpClientModule } from '@angular/common/http';

import { DxDiagramModule, DxDiagramComponent } from 'devextreme-angular';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    @ViewChild(DxDiagramComponent, { static: false }, { static: false }) diagram: DxDiagramComponent;
    // Prior to Angular 8
    // @ViewChild(DxDiagramComponent, { static: false }) diagram: DxDiagramComponent;

    constructor(http: HttpClient) {
        http.get('data/diagram-hardware.json').subscribe(data => {
            this.diagram.instance.import(JSON.stringify(data));
        }, err => {
            throw 'Data Loading Error'
        });
    }
}

<template>
    <DxDiagram
        id="diagram"
        ref="diagram"
    >
        <DxCustomShape
            :category="'hardware'"
            :type="'internet'"
            :title="'Internet'"
            :background-image-url="'images/shapes/internet.svg'"
            :background-image-left="0.15"
            :background-image-top="0"
            :background-image-width="0.7"
            :background-image-height="0.7"
            :default-width="0.75"
            :default-height="0.75"
            :default-text="'Internet'"
            :allow-edit-text="true"
            :text-left="0"
            :text-top="0.7"
            :text-width="1"
            :text-height="0.3"
        >
            <DxConnectionPoint
                :x="0.5"
                :y="0"
            />
            <DxConnectionPoint
                :x="0.9"
                :y="0.5"
            />
            <DxConnectionPoint
                :x="0.5"
                :y="1"
            />
            <DxConnectionPoint
                :x="0.1"
                :y="0.5"
            />
        </DxCustomShape>
        ...
        <DxToolbox :visible="true">
            <DxGroup
                :category="'hardware'"
                :title="'Hardware'"
            />
        </DxToolbox>
    </DxDiagram>
</template>

<script>
import { DxDiagram, DxGroup, DxToolbox, DxCustomShape, DxConnectionPoint } from 'devextreme-vue/diagram';
import 'whatwg-fetch';

export default {
components: {
    DxDiagram, DxGroup, DxToolbox, DxCustomShape, DxConnectionPoint
},
mounted() {
    var diagram = this.$refs['diagram'].instance;
    fetch('data/diagram-hardware.json')
    .then(function(response) {
        return response.json();
    })
    .then(function(json) {
        diagram.import(JSON.stringify(json));
    })
    .catch(function() {
        throw 'Data Loading Error';
    });
}
};
</script>

import React from 'react';
import Diagram, { CustomShape, ConnectionPoint, Group, Toolbox } from 'devextreme-react/diagram';

class App extends React.Component {
constructor(props) {
    super(props);

    this.diagramRef = React.createRef();
}

    render() {
        return (
            <Diagram id="diagram" ref={this.diagramRef}>
                <CustomShape
                    category="hardware"
                    type="internet"
                    title="Internet"
                    backgroundImageUrl="images/shapes/internet.svg"
                    backgroundImageLeft={0.15}
                    backgroundImageTop={0}
                    backgroundImageWidth={0.7}
                    backgroundImageHeight={0.7}
                    defaultWidth={0.75}
                    defaultHeight={0.75}
                    defaultText="Internet"
                    allowEditText={true}
                    textLeft={0}
                    textTop={0.7}
                    textWidth={1}
                    textHeight={0.3}>
                <ConnectionPoint x={0.5} y={0} />
                <ConnectionPoint x={0.9} y={0.5} />
                <ConnectionPoint x={0.5} y={1} />
                <ConnectionPoint x={0.1} y={0.5} />
                </CustomShape>
                ...
                <Toolbox>
                    <Group category="hardware" title="Hardware" />
                </Toolbox>
            </Diagram>
        );
    }
}
export default App;

@(Html.DevExtreme().Diagram()
    .ID("diagram")
    .CustomShapes(cs => {
        cs.Add()
            .Category("hardware")
            .Type("internet")
            .Title("Internet")
            .BackgroundImageUrl("../../Content/Images/shapes/internet.svg")
            .BackgroundImageLeft(0.15)
            .BackgroundImageTop(0)
            .BackgroundImageWidth(0.7)
            .BackgroundImageHeight(0.7)
            .DefaultWidth(1.9)
            .DefaultHeight(1.9)
            .DefaultText("Internet")
            .AllowEditText(true)
            .TextLeft(0)
            .TextTop(0.7)
            .TextWidth(1)
            .TextHeight(0.3)
            .ConnectionPoints(cp => {
                cp.Add().X(0.5).Y(0);
                cp.Add().X(0.9).Y(0.5);
                cp.Add().X(0.5).Y(1);
                cp.Add().X(0.1).Y(0.5);

            });
        ...    
    })
    .Toolbox(tb => tb
        .Groups(g => g.Add().Category("hardware").Title("Hardware"))
    )
)    

View Demo

See Also

defaultImageUrl

See Also

defaultText

When shape resizing is enabled you can restrict shape sizes with the following properties: minWidth, maxWidth, minHeight, and maxHeight.

This property specifies a fraction from 0 to 1 that represents the shape background image height in relation to the shape height. If the backgroundImageHeight property is set to 1, the image height is equal to the shape height.

The absolute image height is calculated by multiplying the backgroundImageHeight value by the shape's height.

This property specifies a fractional left offset of a shape background image toward the shape width. If the backgroundImageLeft property is set to 0, the image's left edge matches the shape's left edge.

The absolute offset is calculated by multiplying the backgroundImageLeft value by the shape's width.

If the backgroundImageToolboxUrl property is not set, the toolbox displays an image specified in the backgroundImageUrl property.

This property specifies the top offset (in fractions) of a shape's background image in relation to the shape's height. If the backgroundImageTop property is set to 0, the image's top edge matches the shape's top edge.

The absolute offset is calculated by multiplying the backgroundImageTop value by the shape's height.

The backgroundImageUrl property is not in effect if the baseType is specified.

See Also

defaultImageUrl

This property specifies a fraction from 0 to 1 that represents the shape background image width in relation to the shape width. If the backgroundImageWidth property is set to 1, the image width is equal to the shape width.

The absolute image width is calculated by multiplying the backgroundImageWidth value by the shape width.

When the baseType property is specified, the backgroundImageUrl property is not in effect.

Use the DiagramShapeType enum to specify this property when the UI component is used as an ASP.NET MVC 5 Control or a DevExtreme-Based ASP.NET Core Control. This enum accepts the following values: Text, Rectangle, Ellipse, Cross, Triangle, Diamond, Heart, Pentagon, Octagon, Star, ArrowLeft, ArrowTop, ArrowRight, ArrowBottom, ArrowNorthSouth, ArrowEastWest, Process, Decision, Terminator, PredefinedProcess, Document, MultipleDocuments, ManualInput, Preparation, Data, Database, HardDisk, InternalStorage, PaperTape, ManualOperation, Delay, StoredData, Display, Merge, Connector, Or, SummingJunction, VerticalContainer, HorizontalContainer, CardWithImageOnLeft, CardWithImageOnTop, CardWithImageOnRight.

Use the category property to link a custom shape to a default or custom category. If the property in not specified, it is set to "custom".

To add a category with shapes to the toolbox, add a group with the corresponding category property value to the toolbox object.

The units property specifies the measurement unit.

This property is in effect for shapes with the baseType property set to "cardWithImageOnLeft", "cardWithImageOnTop", or "cardWithImageOnRight".

See Also

allowEditImage

See Also

allowEditText

The units property specifies the measurement unit.

This property specifies a fraction from 0 to 1 that represents the shape image height in relation to the shape height. If the imageHeight property is set to 1, the image height is equal to the shape height.

The absolute image height is calculated by multiplying the imageHeight value by the shape's height.

This property specifies a fractional left offset of a shape image toward the shape width. If the imageLeft property is set to 0, the image's left edge matches the shape's left edge.

The absolute offset is calculated by multiplying the imageLeft value by the shape's width.

This property specifies the top offset (in fractions) of a shape's image in relation to the shape's height. If the imageTop property is set to 0, the image's top edge matches the shape's top edge.

The absolute offset is calculated by multiplying the imageTop value by the shape's height.

This property specifies a fraction from 0 to 1 that represents the shape image width in relation to the shape width. If the imageWidth property is set to 1, the image width is equal to the shape width.

The absolute image width is calculated by multiplying the imageWidth value by the shape width.

The units property specifies the measurement unit.

The units property specifies the measurement unit.

The units property specifies the measurement unit.

The units property specifies the measurement unit.

The template content must be presented as SVG elements.

Use the customShapeTemplate property to define a common template for all shapes in the Diagram UI component.

View Demo

See Also

• Custom Templates

This property specifies a fraction from 0 to 1 that represents the shape template height in relation to the shape height. If the templateHeight property is set to 1, the template height is equal to the shape height.

The absolute template height is calculated by multiplying the templateHeight value by the shape height.

This property specifies a fractional left offset of a shape template toward the shape width. If the templateLeft property is set to 0, the template's left edge matches the shape's left edge.

The absolute offset is calculated by multiplying the templateLeft value by the shape's width.

This property specifies a fractional top offset of a shape template toward the shape width. If the templateTop property is set to 0, the template's top edge matches the shape's top edge.

The absolute offset is calculated by multiplying the templateTop value by the shape's width.

This property specifies a fraction from 0 to 1 that represents the shape template width in relation to the shape width. If the templateWidth property is set to 1, the template width is equal to the shape width.

The absolute template width is calculated by multiplying the templateWidth value by the shape width.

This property specifies a fraction from 0 to 1 that represents the height of a shape's text in relation to the shape height. If the textHeight property is set to 1, the text height is equal to the shape height.

The absolute text height is calculated by multiplying the textHeight value by the shape height.

This property specifies the shape text's left offset (in fractions) in relation to the shape width. If the textLeft property is set to 0, the text's left edge matches the shape's left edge.

The absolute offset is calculated by multiplying the textLeft value by the shape width.

This property specifies the shape text's top offset (in fractions) in relation to the shape height. If the textTop property is set to 0, the text's top edge matches the shape's top edge.

The absolute offset is calculated by multiplying the textTop value by the shape height.

This property specifies a fraction from 0 to 1 that represents the shape text's width in relation to the shape width. If the textWidth property is set to 1, the text width is equal to the shape width.

The absolute text width is calculated by multiplying the textWidth value by the shape width.

The type value must be specified and must be unique.