Vector.js

Vector is an open source javascript library for creating interactive graphics. View the repository, browse the API, run the tests, or meet the team.

SVG Ellipse Element Open in Sandbox

Description

This interactive demonstrates the SVG ellipse element and its attributes.

Script

/**
* @title SVG Ellipse Element
* @description This interactive demonstrates the SVG ellipse element and its attributes.
* @date May 3, 2019
* @author Kurt Bruns
* @tags [svg]
*/
import { Interactive, getScriptName } from '../../index.js';
let interactive = new Interactive(getScriptName());
interactive.border = true;
interactive.width = 736;
let ellipse = interactive.ellipse(0, 0, 0, 0);
ellipse.classList.add('default');
let l1 = interactive.line(0, 0, 0, 0);
let l2 = interactive.line(0, 0, 0, 0);
l1.stroke = 'cornflowerblue';
l2.stroke = 'cornflowerblue';
let text = interactive.text(25, 275, "");
let c0 = interactive.control(300, 150);
let c1 = interactive.control(450, 150);
let c2 = interactive.control(300, 100);
ellipse.update = function () {
    this.cx = c0.x;
    this.cy = c0.y;
    this.rx = Math.abs(c1.x - c0.x);
    this.ry = Math.abs(c2.y - c0.y);
};
ellipse.update();
ellipse.addDependency(c0);
ellipse.addDependency(c1);
ellipse.addDependency(c2);
c1.update = function () {
    this.x += c0.dx;
    this.y += c0.dy;
};
c1.addDependency(c0);
c1.constrainToX();
c2.update = function () {
    this.x += c0.dx;
    this.y += c0.dy;
};
c2.addDependency(c0);
c2.constrainToY();
l1.update = function () {
    this.x1 = c0.x;
    this.y1 = c0.y;
    this.x2 = c1.x;
    this.y2 = c1.y;
};
l1.update();
l1.addDependency(c0);
l1.addDependency(c1);
l2.update = function () {
    this.x1 = c0.x;
    this.y1 = c0.y;
    this.x2 = c2.x;
    this.y2 = c2.y;
};
l2.update();
l2.addDependency(c0);
l2.addDependency(c2);
let tag = text.tspan('<ellipse ');
let cx = text.tspan('cx=');
let cy = text.tspan('cy=');
let rx = text.tspan('rx=');
let ry = text.tspan('rx=');
let close = text.tspan('></ellipse>');
text.x = 20;
text.y = interactive.maxY - 20;
text.style.alignmentBaseline = 'middle';
tag.style.fill = 'purple';
cx.style.fill = '#ab6f00';
cy.style.fill = '#ab6f00';
rx.style.fill = '#ab6f00';
ry.style.fill = '#ab6f00';
close.style.fill = 'purple';
let cxValue = cx.tspan('... ');
let cyValue = cy.tspan('... ');
let rxValue = rx.tspan('... ');
let ryValue = ry.tspan('... ');
cxValue.style.fill = '#333333';
cyValue.style.fill = '#333333';
rxValue.style.fill = '#333333';
ryValue.style.fill = '#333333';
cxValue.style.fill = '#333333';
cxValue.addDependency(ellipse);
cxValue.update = function () {
    cxValue.text = `"${ellipse.cx.toFixed(0)}" `;
};
cyValue.addDependency(ellipse);
cyValue.update = function () {
    cyValue.text = `"${ellipse.cy.toFixed(0)}" `;
};
rxValue.addDependency(ellipse);
rxValue.update = function () {
    rxValue.text = `"${ellipse.rx.toFixed(0)}" `;
};
ryValue.addDependency(ellipse);
ryValue.update = function () {
    ryValue.text = `"${ellipse.ry.toFixed(0)}" `;
};
ellipse.updateDependents();
//# sourceMappingURL=svg-ellipse.js.map