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positioning.js
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positioning.js
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const path = require('path');
const HummusRecipe = require('../lib');
function frame(recipe, left, top, width, height) {
const cut = 8;
const options = { color: '#00ff00', width: 1 };
const bottom = top + height;
const right = left + width;
recipe.line([
[left - cut, top],
[right + cut, top]
], options); // top
recipe.line([
[left - cut, bottom],
[right + cut, bottom]
], options); // bottom
recipe.line([
[left, top - cut],
[left, bottom + cut]
], options); // left
recipe.line([
[right, top - cut],
[right, bottom + cut]
], options); // right
}
function markOrigin(recipe, cx, cy) {
recipe.circle(cx, cy, 5, { stroke: '#ff0000', width: 1 });
}
describe('Graphic Object Positioning', () => {
// Tests the explicit setting of the global default RGB colorspace
it('Location, location...', (done) => {
const output = path.join(__dirname, 'output/positioning.pdf');
const recipe = new HummusRecipe('new', output, {
colorspace: 'rgb'
});
const col = [0, 90, 205, 320, 435];
const row = [0, 90, 205, 320, 435, 550];
const wid = [80, 195];
const hgt = [80];
const triangle = (col, row) => {
return [
[col + wid[0] / 2, row],
[col + wid[0], row + hgt[0]],
[col, row + hgt[0]]
];
};
recipe.createPage('letter-size');
for (let i = 1; i <= 4; i++) {
frame(recipe, col[1], row[i], wid[0], hgt[0]);
frame(recipe, col[2], row[i], wid[0], hgt[0]);
frame(recipe, col[3], row[i], wid[0], hgt[0]);
frame(recipe, col[4], row[i], wid[0], hgt[0]);
}
frame(recipe, col[1], row[5], wid[1], hgt[0]);
frame(recipe, col[3], row[5], wid[1], hgt[0]);
recipe
.rectangle(col[1], row[1], wid[0], hgt[0], { width: 1 })
.rectangle(col[2], row[1], wid[0], hgt[0], { width: 2 })
.rectangle(col[3], row[1], wid[0], hgt[0], { width: 3 })
.rectangle(col[4], row[1], wid[0], hgt[0], { width: 5 })
.circle(col[1] + wid[0] / 2, row[2] + hgt[0] / 2, wid[0] / 2, { width: 1 })
.circle(col[2] + wid[0] / 2, row[2] + hgt[0] / 2, wid[0] / 2, { width: 2 })
.circle(col[3] + wid[0] / 2, row[2] + hgt[0] / 2, wid[0] / 2, { width: 3 })
.circle(col[4] + wid[0] / 2, row[2] + hgt[0] / 2, wid[0] / 2, { width: 5 })
.polygon(triangle(col[1], row[3]), { width: 1 })
.polygon(triangle(col[2], row[3]), { width: 2 })
.polygon(triangle(col[3], row[3]), { width: 3 })
.polygon(triangle(col[4], row[3]), { width: 5 })
.line([
[col[1], row[4]],
[col[1] + wid[0], row[4] + hgt[0]]
], { width: 1 })
.line([
[col[2], row[4]],
[col[2] + wid[0], row[4] + hgt[0]]
], { width: 2 })
.line([
[col[3], row[4]],
[col[3] + wid[0], row[4] + hgt[0]]
], { width: 3 })
.line([
[col[4], row[4]],
[col[4] + wid[0], row[4] + hgt[0]]
], { width: 5 })
.ellipse(col[1] + wid[1] / 2, row[5] + hgt[0] / 2, wid[1] / 2, hgt[0] / 2, { width: 1 })
.ellipse(col[3] + wid[1] / 2, row[5] + hgt[0] / 2, wid[1] / 2, hgt[0] / 2, { width: 5 })
.text('Note, object growth outside cut frames with increasing line widths', 100, 40)
.text('*', 80, 40, { color: 'ff0000', fontSize: 32 })
.text('*', col[1] - 20, row[3] + hgt[0] / 2, { color: 'ff0000', fontSize: 32 })
.text('*', col[1] - 20, row[4] + hgt[0] / 2, { color: 'ff0000', fontSize: 32 })
.endPage()
.endPDF(done);
});
it('Rotation', (done) => {
const output = path.join(__dirname, 'output/objectRotation.pdf');
const recipe = new HummusRecipe('new', output, {
colorspace: 'rgb'
});
const defOrigColor = '#ff00ff';
const col = [0, 90, 205, 320, 435];
const row = [0, 90, 205, 320, 435, 550];
const wid = [80, 195];
const hgt = [80];
const triangle = (col, row) => {
return [
[col + wid[0] / 2, row],
[col + wid[0], row + hgt[0]],
[col, row + hgt[0]]
];
};
recipe.createPage('letter-size');
for (let i = 1; i <= 2; i++) {
frame(recipe, col[1], row[i], wid[0], hgt[0]);
frame(recipe, col[2], row[i], wid[0], hgt[0]);
frame(recipe, col[3], row[i], wid[0], hgt[0]);
frame(recipe, col[4], row[i], wid[0], hgt[0]);
}
for (let i = 3; i <= 5; i++) {
frame(recipe, col[1], row[i], wid[1], hgt[0]);
frame(recipe, col[3], row[i], wid[1], hgt[0]);
}
const top = (r) => { return r; };
const lft = (c) => { return c; };
const rht = (c, w = wid[0]) => { return c + w; };
const btm = (r) => { return r + hgt[0]; };
recipe
.rectangle(col[1], row[1], wid[0], hgt[0], { width: 1, rotation: 10, stroke: defOrigColor })
.rectangle(col[2], row[1], wid[0], hgt[0], { width: 1, rotation: 10, rotationOrigin: [lft(col[2]), top(row[1])] })
.rectangle(col[3], row[1], wid[0], hgt[0], { width: 1, rotation: 10, rotationOrigin: [rht(col[3]), top(row[1])] })
.rectangle(col[4], row[1], wid[0], hgt[0], { width: 1, rotation: 10, rotationOrigin: [rht(col[4]), btm(row[1])] });
markOrigin(recipe, lft(col[1]), btm(row[1]));
markOrigin(recipe, lft(col[2]), top(row[1]));
markOrigin(recipe, rht(col[3]), top(row[1]));
markOrigin(recipe, rht(col[4]), btm(row[1]));
recipe
.polygon(triangle(col[1], row[2]), { width: 1, rotation: 10, stroke: defOrigColor })
.polygon(triangle(col[2], row[2]), { width: 1, rotation: 10, rotationOrigin: [lft(col[2]), btm(row[2])] })
.polygon(triangle(col[3], row[2]), { width: 1, rotation: 10, rotationOrigin: [lft(col[3]) + wid[0] / 2, top(row[2])] })
.polygon(triangle(col[4], row[2]), { width: 1, rotation: 10, rotationOrigin: [rht(col[4]), btm(row[2])] });
markOrigin(recipe, lft(col[1]) + wid[0] / 2, top(row[2] + hgt[0] / 2));
markOrigin(recipe, lft(col[2]), btm(row[2]));
markOrigin(recipe, lft(col[3]) + wid[0] / 2, top(row[2]));
markOrigin(recipe, rht(col[4]), btm(row[2]));
recipe
.ellipse(col[1] + wid[1] / 2, row[3] + hgt[0] / 2, wid[1] / 2, hgt[0] / 2, { width: 1, rotation: 10, stroke: defOrigColor })
.ellipse(col[3] + wid[1] / 2, row[3] + hgt[0] / 2, wid[1] / 2, hgt[0] / 2, { width: 1, rotation: 10, rotationOrigin: [lft(col[3]), btm(row[3])] })
.ellipse(col[1] + wid[1] / 2, row[4] + hgt[0] / 2, wid[1] / 2, hgt[0] / 2, { width: 1, rotation: 10, rotationOrigin: [rht(col[1], wid[1]), top(row[4])] })
.ellipse(col[3] + wid[1] / 2, row[4] + hgt[0] / 2, wid[1] / 2, hgt[0] / 2, { width: 1, rotation: 10, rotationOrigin: [lft(col[3]), top(row[4])] })
.ellipse(col[1] + wid[1] / 2, row[5] + hgt[0] / 2, wid[1] / 2, hgt[0] / 2, { width: 1, rotation: 10, rotationOrigin: [rht(col[1], wid[1]), btm(row[5])] });
markOrigin(recipe, col[1] + wid[1] / 2, row[3] + hgt[0] / 2);
markOrigin(recipe, lft(col[3]), btm(row[3]));
markOrigin(recipe, rht(col[1], wid[1]), top(row[4]));
markOrigin(recipe, lft(col[3]), top(row[4]));
markOrigin(recipe, rht(col[1], wid[1]), btm(row[5]));
markOrigin(recipe, 50, 40);
recipe
.text('Marks rotation origin.', 60, 45)
.text('This color marks object with default rotation origin.', 200, 45, { color: defOrigColor })
.endPage()
.endPDF(done);
});
});