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Solid Fill Entity (SolidEnt)

Less than 1 minute

Solid Fill Entity (SolidEnt)

SolidEnt represents a solid-filled triangle or quadrilateral region in CAD.

Overview

A solid fill is a simple filled entity that defines a solid-filled region using 3 or 4 points. Unlike HatchEnt, SolidEnt does not require boundary entities and is defined directly by points.

Constructor

import { SolidEnt, Point2D } from 'vjcad';

// Shorthand syntax (recommended)
// Create a triangular solid fill (3 points)
const solid3 = new SolidEnt([0, 0], [100, 0], [50, 100]);
solid3.setDefaults();

// Create a quadrilateral solid fill (4 points)
const solid4 = new SolidEnt([0, 0], [100, 0], [100, 100], [0, 100]);
solid4.setDefaults();

// Point2D syntax
const solid5 = new SolidEnt(
  new Point2D(0, 0),
  new Point2D(100, 0),
  new Point2D(100, 0),
  new Point2D(0, 100)
);

Shorthand Syntax

The constructor and point1-point4 properties support coordinates in [x, y] array form.

Properties

PropertyTypeDescription
pointsPoint2D[]Array of vertices (3-4 points)

Examples

Drawing a Solid Triangle

import { Engine, SolidEnt, Point2D } from 'vjcad';

function drawSolidTriangle(p1: Point2D, p2: Point2D, p3: Point2D) {
  const solid = new SolidEnt([p1, p2, p3]);
  solid.setDefaults();
  solid.color = 1;  // Red
  
  Engine.addEntities(solid);
}

drawSolidTriangle(
  new Point2D(0, 0),
  new Point2D(100, 0),
  new Point2D(50, 86.6)  // Equilateral triangle
);

Drawing a Solid Rectangle

import { Engine, SolidEnt, Point2D } from 'vjcad';

function drawSolidRectangle(x: number, y: number, width: number, height: number) {
  const solid = new SolidEnt([
    new Point2D(x, y),
    new Point2D(x + width, y),
    new Point2D(x + width, y + height),
    new Point2D(x, y + height)
  ]);
  solid.setDefaults();
  
  Engine.addEntities(solid);
}

drawSolidRectangle(50, 50, 100, 60);

Next Steps