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JiriKrblichJiriKrblich
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Added: Split to grid
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‎registry.json‎

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"version": "1.0.0",
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"category": "Color",
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"download_url": "https://raw.githubusercontent.com/JiriKrblich/Affinity-Community-Scripts/main/scripts/oklch_color.js"
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},
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{
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"id": "split_to_grid",
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"name": "Split to grid",
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"description": "Split vector object into n*n grid",
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"author": "JiriKrblich",
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"version": "1.0.0",
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"category": "Object",
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"download_url": "https://raw.githubusercontent.com/JiriKrblich/Affinity-Community-Scripts/main/scripts/split_to_grid.js"
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}
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]
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}

‎scripts/split_to_grid.js‎

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'use strict';
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const { Document } = require('/document');
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const { Dialog, DialogResult } = require('/dialog');
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const { UnitType } = require('/units');
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const { DocumentCommand } = require('/commands');
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const { CurveBuilder } = require('/geometry');
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const { Selection } = require('/selections');
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// ── State ─────────────────────────────────────────────────────────────────────
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let currentPieces = [];
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let config = { cols: 3, rows: 3, gap: 10 };
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// ── Cleanup: remove slices from previous preview ──────────────────────────────
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function deletePieces() {
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const doc = Document.current;
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for (const p of currentPieces) {
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try { doc.executeCommand(DocumentCommand.createDeleteSelection(Selection.create(doc, p), false)); }
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catch (e) { /* already gone */ }
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}
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currentPieces = [];
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}
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// ── Core: knife-cut grid with equal-size pieces ───────────────────────────────
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//
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// Equal-size fix: subtract all gap space first, then divide remaining area
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// evenly. Each divider center sits at:
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// midX = origBox.x + c * pieceW + (c − 0.5) * gap
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// so every column is exactly pieceW wide and every gap is exactly `gap` wide.
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//
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// Stability fix: null-guard after ConvertToCurves (node ref is replaced by
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// Affinity), try/catch around every knife call.
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function generateGrid(origNode, origBox) {
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const doc = Document.current;
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const { cols, rows, gap } = config;
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const pieceW = (origBox.width - (cols - 1) * gap) / cols;
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const pieceH = (origBox.height - (rows - 1) * gap) / rows;
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const half = gap / 2;
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// Duplicate hidden original, show & convert the duplicate
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const dupCmd = DocumentCommand.createTransform(
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origNode.selfSelection, null, { duplicateNodes: true });
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doc.executeCommand(dupCmd);
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if (!dupCmd.newNodes || dupCmd.newNodes.length === 0) {
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throw new Error(
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'Duplicate failed. Object must be a shape or image — not a group or text frame.');
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}
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const dup = dupCmd.newNodes[0];
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doc.executeCommand(DocumentCommand.createSetVisibility(dup.selfSelection, true));
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doc.executeCommand(DocumentCommand.createConvertToCurves(Selection.create(doc, dup)));
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// createConvertToCurves replaces the node; read result from selection
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const selAfter = doc.selection.nodes;
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const converted = (selAfter && selAfter.length > 0) ? selAfter.first : null;
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if (!converted) {
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throw new Error(
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'Convert to Curves produced no output. Try manually converting the object first.');
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}
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let pieces = [converted];
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function cutAll(line) {
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const next = [];
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for (const p of pieces) {
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try {
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const cmd = DocumentCommand.createKnifeCut(line, Selection.create(doc, p));
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doc.executeCommand(cmd);
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next.push(...(cmd.newNodes && cmd.newNodes.length === 2 ? cmd.newNodes : [p]));
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} catch (e) { next.push(p); }
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}
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pieces = next;
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}
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function deleteStrips(lo, hi, axis) {
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const keep = [], del = [];
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for (const p of pieces) {
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try {
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const bb = p.baseBox;
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if (!bb) { keep.push(p); continue; }
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const mid = axis === 'x' ? bb.x + bb.width / 2 : bb.y + bb.height / 2;
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(mid > lo && mid < hi ? del : keep).push(p);
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} catch (e) { keep.push(p); }
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}
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for (const p of del) {
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try { doc.executeCommand(DocumentCommand.createDeleteSelection(Selection.create(doc, p), false)); }
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catch (e) { /* already gone */ }
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}
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pieces = keep;
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}
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// Horizontal dividers
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for (let r = 1; r < rows; r++) {
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const midY = origBox.y + r * pieceH + (r - 0.5) * gap;
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if (gap > 0) {
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cutAll(new CurveBuilder().beginXY(origBox.x - 200, midY - half).lineToXY(origBox.x + origBox.width + 200, midY - half).createCurve());
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cutAll(new CurveBuilder().beginXY(origBox.x - 200, midY + half).lineToXY(origBox.x + origBox.width + 200, midY + half).createCurve());
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deleteStrips(midY - half, midY + half, 'y');
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} else {
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cutAll(new CurveBuilder().beginXY(origBox.x - 200, midY).lineToXY(origBox.x + origBox.width + 200, midY).createCurve());
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}
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}
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// Vertical dividers
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for (let c = 1; c < cols; c++) {
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const midX = origBox.x + c * pieceW + (c - 0.5) * gap;
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if (gap > 0) {
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cutAll(new CurveBuilder().beginXY(midX - half, origBox.y - 200).lineToXY(midX - half, origBox.y + origBox.height + 200).createCurve());
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cutAll(new CurveBuilder().beginXY(midX + half, origBox.y - 200).lineToXY(midX + half, origBox.y + origBox.height + 200).createCurve());
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deleteStrips(midX - half, midX + half, 'x');
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} else {
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cutAll(new CurveBuilder().beginXY(midX, origBox.y - 200).lineToXY(midX, origBox.y + origBox.height + 200).createCurve());
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}
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}
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currentPieces = pieces;
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}
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// ── Main ──────────────────────────────────────────────────────────────────────
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function run() {
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const doc = Document.current;
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const sel = doc.selection;
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if (!sel || sel.length === 0) {
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const dlg = Dialog.create('Split to Grid');
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dlg.addColumn().addGroup('').addStaticText('',
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'No object selected. Please select one object first.').isFullWidth = true;
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dlg.show();
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return;
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}
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const origNode = sel.nodes.first;
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let origBox;
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try {
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origBox = origNode.baseBox;
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if (!origBox || origBox.width <= 0 || origBox.height <= 0) throw new Error();
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} catch (e) {
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const dlg = Dialog.create('Split to Grid');
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dlg.addColumn().addGroup('').addStaticText('',
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'Selected object has no valid dimensions.\n' +
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'Please select a shape or image (not a group or text frame).').isFullWidth = true;
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dlg.show();
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return;
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}
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// Hide original; only the live-preview slices will be visible
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doc.executeCommand(DocumentCommand.createSetVisibility(origNode.selfSelection, false));
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// ── Build dialog once (RadialRepeat pattern) ──────────────────────────────
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const dialog = Dialog.create('Split to Grid');
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const col = dialog.addColumn();
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col.addGroup('Selected Object').addStaticText('',
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`"${origNode.description}" — ${Math.round(origBox.width)} × ${Math.round(origBox.height)} px`
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).isFullWidth = true;
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const sg = col.addGroup('Grid Settings');
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const colsCtrl = sg.addUnitValueEditor('Columns', UnitType.None, UnitType.None, config.cols, 1, 24);
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colsCtrl.showPopupSlider = true;
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colsCtrl.precision = 0;
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const rowsCtrl = sg.addUnitValueEditor('Rows', UnitType.None, UnitType.None, config.rows, 1, 24);
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rowsCtrl.showPopupSlider = true;
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rowsCtrl.precision = 0;
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const gapCtrl = sg.addUnitValueEditor('Gap', UnitType.Pixel, UnitType.Pixel, config.gap, 0, 200);
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gapCtrl.showPopupSlider = true;
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// Separator + Preview / Apply button set (same pattern as RadialRepeat)
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const sepGrp = col.addGroup('');
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sepGrp.enableSeparator = true;
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const btns = sepGrp.addButtonSet('', ['Preview', 'Apply'], 0);
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// ── Initial preview (before first dialog.show) ────────────────────────────
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try {
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generateGrid(origNode, origBox);
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} catch (e) {
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try { doc.executeCommand(DocumentCommand.createSetVisibility(origNode.selfSelection, true)); } catch (_) {}
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const errDlg = Dialog.create('Split to Grid – Error');
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errDlg.addColumn().addGroup('').addStaticText('',
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`Could not split the object:\n${e.message || e}\n\n` +
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'Tip: convert it to curves first via Layer › Convert to Curves.'
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).isFullWidth = true;
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errDlg.show();
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return;
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}
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// ── Dialog loop ───────────────────────────────────────────────────────────
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// OK + Preview → delete old slices, regenerate, loop
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// OK + Apply → delete old slices, regenerate, delete hidden orig, done
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// Cancel → delete old slices, restore orig, done
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let running = true;
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while (running) {
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btns.selectedIndex = 0; // reset button highlight to "Preview"
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const result = dialog.show();
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// Read current control values
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config.cols = Math.max(1, Math.round(colsCtrl.value));
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config.rows = Math.max(1, Math.round(rowsCtrl.value));
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config.gap = Math.max(0, gapCtrl.value);
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const mode = btns.selectedIndex; // 0 = Preview, 1 = Apply
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if (result.value === DialogResult.Ok.value) {
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deletePieces();
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try {
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generateGrid(origNode, origBox);
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} catch (e) {
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try { doc.executeCommand(DocumentCommand.createSetVisibility(origNode.selfSelection, true)); } catch (_) {}
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const errDlg = Dialog.create('Split to Grid – Error');
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errDlg.addColumn().addGroup('').addStaticText('',
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`Could not split the object:\n${e.message || e}`
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).isFullWidth = true;
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errDlg.show();
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running = false;
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return;
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}
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if (mode === 1) {
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// Apply: finalize — delete the hidden original, keep the slices
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try {
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doc.executeCommand(
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DocumentCommand.createDeleteSelection(origNode.selfSelection, false));
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} catch (e) { /* already gone */ }
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running = false;
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}
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// mode === 0 (Preview): loop back, dialog re-opens automatically
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} else {
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// Cancel: discard slices, restore the original object
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deletePieces();
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try {
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doc.executeCommand(
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DocumentCommand.createSetVisibility(origNode.selfSelection, true));
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} catch (e) { /* already visible */ }
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running = false;
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}
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}
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}
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run();

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