Published
Edited
Apr 30, 2020
2 forks
Importers
12 stars
square_grid = (s=100, n=10, go=[0.5, 0.5], co=[0.5, 0.5]) => {
const cs = s / n;
const x = i => (i % n) * cs - (cs * n * go[0]) + (cs * co[0]);
const y = i => Math.floor(i / n) * cs - (cs * n * go[1]) + (cs * co[1]);
const grid = [...Array(n * n).keys()];
grid.forEach((v, i) => { grid[i] = {i: i, x: x(i), y: y(i), r: cs } });
return grid;
}
dot_matrix = (svg, s, n) => {
// Create a group container for the dots
const g = svg.append("g");
// Create the grid data and join to group
let circles = g.selectAll("circle")
.data(square_grid(s, n));
// Map the data to create a matrix of dots
circles.enter()
.append("circle")
.attr("cx", d => d.x)
.attr("cy", d => d.y)
.attr("r", d => 6)
.attr("fill", "#F9A825");
circles.exit().remove();
// Return the container
return g;
}
line_grid = (svg, s, n) => {
// Create a group container for the squares
const g = svg.append("g");
// Create the grid data and join to group
let squares = g.selectAll("rect")
.data(square_grid(s, n, [0.5, 0.5], [0, 0]));
// Map the data to create a matrix of squares
squares.enter()
.append("rect")
.attr("x", d => d.x)
.attr("y", d => d.y)
.attr("width", d => d.r)
.attr("height", d => d.r)
.attr("fill", "none")
.attr("stroke-width", 1.6)
.attr("stroke", "#212121");
squares.exit().remove();
return g;
}
background = svg => {
const rect = svg.append("rect")
.attr("width", "100%")
.attr("height", "100%")
.attr("fill", "#EEEEEE");
return rect;
}
caption = (svg, txt) => {
const text = svg.append("text");
text
.text(txt)
.attr("text-anchor", "middle")
.attr("x", height/2)
.attr("y", height - 40)
.attr("fill", "#212121")
.attr("font-size", 14)
.attr("font-weight", 900);
return text;
}
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