@meta2d/core/src/grid/dotGrid.js

@meta2d/core: Powerful, Beautiful, Simple, Open - Web-Based 2D At Its Best .

export function dotGridDrawer(ctx, { store, area, align, size, color }, mousePos) {
    const baseColor = color;
    ctx.fillStyle = baseColor;
    const radius = Math.max(0.5, 1.5 * store.data.scale);
    const m = align.x / size;
    const n = align.y / size;
    const offset = size * 10;
    const newX = align.x - Math.ceil(m) * size;
    const newY = align.y - Math.ceil(n) * size;
    const endX = area.x + area.width + offset;
    const endY = area.y + area.height + offset;
    for (let x = newX + radius; x <= endX - radius; x += size) {
        for (let y = newY + radius; y <= endY - radius; y += size) {
            ctx.beginPath();
            ctx.arc(x, y, radius, 0, Math.PI * 2);
            ctx.fill();
        }
    }
    return true;
}
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