@yosichikaw/vue-flowchart NPM

vue-flowchart

A Mobile-friendly drag and pinchable flowchart components in Vue.js.

demo

This is a demo application combined with BootstrapVue. https://vue-flowchart.ichi-dev.info/

Usage

Install via npm

npm install @yosichikaw/vue-flowchart

Add to your application

import Vue from 'vue';
import VueFlowchart from "@yosichikaw/vue-flowchart";

Vue.use(VueFlowchart);

Example code

<template>
  <div id="app">
    <VueFlowchart
      :flow="flow"
      :selected_node_ids="selectedNodeIds"
      :options="options"
      @onTouch="onTouch"
    />
</template>
<script>
export default {
  data() {
    return {
      flow: {
        nodes: [
          {id: 1, title: "title1", bodies: ["item1", "item2"], x: 10, y:500},
          {id: 1, title: "title2", bodies: ["item3"], x: 200, y:700},
        ],
        links: [
          { from: 1, index: 1, to: 2 },
        ],
      },
      selected_nodes: [],
      options:{},
    };
  },
  computed: {
    selectedNodeIds() {
      return this.selected_nodes.map((n) => n.id);
    },
  },
  methods: {
    onTouch({node_id}){
      // do something
    },
  }
};
</script>

Parameters

Parameter	Default	Type	Description
id	"vue-flowchart"	String	The ID of SVG element.
flow	see below	Object	Flowchart display data.
selected_node_ids	`[]`	Array	List of IDs of selected nodes.
options	see below	Object	Options.

Define the default Parameters. https://github.com/IchikawaYoshihiro/vue-flowchart/blob/master/src/const.js

flow

Parameter	Type	Default	Description
nodes	Array	`[]`
nodes.*.id	String, Number	null
nodes.*.title	String	""
nodes.*.bodies	Array	`[]`
nodes..bodies.	String	""	Message
nodes.*.x	Number	0
nodes.*.y	Number	0
liks	Array	`[]`
liks.*.from	String,Number	0	ID of the source node.
liks.*.index	Number	0	The index of the bodies of the linking source node.
liks.*.to	String,Number	0	ID of the linked node.

selected_node_ids

ID array of the selected node.

options

Parameter	Type	Default	Description
draggable	Boolean	true	The value of whether the background can be dragged.
pinchable	Boolean	true
enable_grid	Boolean	true	The value to display the grid.
enable_filter	Boolean	true	Value whether to apply shadow filter, if true, drawing performance will be reduced on low specs.
canvas.scale	Number	0.75
canvas.grid	Number	10
canvas.grid_color	String	"#bbb"
node.draggable	Boolean	true	The value of whether the node can be dragged.
node.fit_grid	Boolean	true	The value to align to the grid when the node is moved.
node.bgcolor	String	"#fff"
node.border_color	String	"#40b883"
node.border_width	Number	1.5
node.max_width	Number	300
node.font_size.title	Number	16
node.font_size.body	Number	12
node.default_text.title	String	"No title"
node.default_text.body	String	"No message"
node.text_color.title	String	"#111"
node.text_color.body	String	"#000"
link.border_color	String	"#40b883"
link.border_width	Number	1.5
link.type	line, key_line, curve	"line"
control.detect_double_touch_msec	Number	500	The value of how many milliseconds it is judged to be a double touch when it is touched twice.
control.detect_long_touch_msec	Number	500	The value of how many milliseconds or more of continuous touch is judged to be long touch.
control.detect_move_px	Number	10	The range of whether you are tapping the same spot. If you make it too small, a slight shift of your finger will be judged as a move and the long tap will not fire.
control.drag_fps	Number	60	Drag event firing frequency. If you set it above 120, all movement events will fire, which may result in a performance degradation.

Events

Event	Argments	Description
onTouch	`{ node_id }`	When touched.
onLongTouch	`{ node_id }`	When long-touched.
onDoubleTouch	`{ node_id }`	When touched twice.
onTouchEnd	`{ node_id }`	When the touch is over.
onDrag	`{ dx, dy }`	When draggable is enabled and the cursor is moved.
onBackgroundDrag	`{ dx, dy }`	When draggable is enabled and the cursor is moved in a blank space.
onPinch	`{ dr, dh, dv, dl, cx, cy }`	When pinching or mouse wheel is used.`dr`: Rotation angle. `dh`, `dv` : Difference between horizontal and vertical movement.`dl`: Difference in touch distance or wheel travel distance. `cx`,`cy`: Touch intermediate coordinates or wheeled coordinates.

Slots

grid

Custom grids can be added. If enable_grid is disabled, it is not visible. The ID of the pattern element must be specified as "grid".

Example

Dotted Grid.

<VueFlowchart>
  <template v-slot:grid="{ options, gridScale }">
    <defs>
      <pattern
        id="grid"
        x="0"
        y="0"
        :width="gridScale.x"
        :height="gridScale.y"
      >
        <circle cx="0" cy="0" r="1" :stroke="options.canvas.grid_color" />
      </pattern>
    </defs>
  </template>
</VueFlowchart>

filter

Allows you to add a custom filter. Not visible if enable_filter is disabled. The ID of the pattern element must be specified as "filter".

Example

An embossable filter sample.

<VueFlowchart>
  <template v-slot:filter">
    <defs>
      <filter id="filter">
        <feConvolveMatrix order="3 3" kernelMatrix="3 0 0 0 1 0 0 0 -3" />
      </filter>
    </defs>
  </template>
</VueFlowchart>