Fantasy-Map-Generator/modules/io/export.js
Greger 004097ef93
Make id field in exports more consistent. (#1210)
The id field for geojson export was not consistent with csv exports.
Removes the prefix on routes, rivers and markers geojson, and on
markers csv, to make them all use only an integer as id.

This makes it easier to import and do joins in other software.
2025-06-11 00:42:31 +02:00

532 lines
18 KiB
JavaScript

"use strict";
// Functions to export map to image or data files
async function exportToSvg() {
TIME && console.time("exportToSvg");
const url = await getMapURL("svg", {fullMap: true});
const link = document.createElement("a");
link.download = getFileName() + ".svg";
link.href = url;
link.click();
const message = `${link.download} is saved. Open 'Downloads' screen (ctrl + J) to check`;
tip(message, true, "success", 5000);
TIME && console.timeEnd("exportToSvg");
}
async function exportToPng() {
TIME && console.time("exportToPng");
const url = await getMapURL("png");
const link = document.createElement("a");
const canvas = document.createElement("canvas");
const ctx = canvas.getContext("2d");
canvas.width = svgWidth * pngResolutionInput.value;
canvas.height = svgHeight * pngResolutionInput.value;
const img = new Image();
img.src = url;
img.onload = function () {
ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
link.download = getFileName() + ".png";
canvas.toBlob(function (blob) {
link.href = window.URL.createObjectURL(blob);
link.click();
window.setTimeout(function () {
canvas.remove();
window.URL.revokeObjectURL(link.href);
const message = `${link.download} is saved. Open 'Downloads' screen (ctrl + J) to check. You can set image scale in options`;
tip(message, true, "success", 5000);
}, 1000);
});
};
TIME && console.timeEnd("exportToPng");
}
async function exportToJpeg() {
TIME && console.time("exportToJpeg");
const url = await getMapURL("png");
const canvas = document.createElement("canvas");
canvas.width = svgWidth * pngResolutionInput.value;
canvas.height = svgHeight * pngResolutionInput.value;
const img = new Image();
img.src = url;
img.onload = async function () {
canvas.getContext("2d").drawImage(img, 0, 0, canvas.width, canvas.height);
const quality = Math.min(rn(1 - pngResolutionInput.value / 20, 2), 0.92);
const URL = await canvas.toDataURL("image/jpeg", quality);
const link = document.createElement("a");
link.download = getFileName() + ".jpeg";
link.href = URL;
link.click();
tip(`${link.download} is saved. Open "Downloads" screen (CTRL + J) to check`, true, "success", 7000);
window.setTimeout(() => window.URL.revokeObjectURL(URL), 5000);
};
TIME && console.timeEnd("exportToJpeg");
}
async function exportToPngTiles() {
const status = byId("tileStatus");
status.innerHTML = "Preparing files...";
const urlSchema = await getMapURL("tiles", {debug: true, fullMap: true});
await import("../../libs/jszip.min.js");
const zip = new window.JSZip();
const canvas = document.createElement("canvas");
const ctx = canvas.getContext("2d");
canvas.width = graphWidth;
canvas.height = graphHeight;
const imgSchema = new Image();
imgSchema.src = urlSchema;
await loadImage(imgSchema);
status.innerHTML = "Rendering schema...";
ctx.drawImage(imgSchema, 0, 0, canvas.width, canvas.height);
const blob = await canvasToBlob(canvas, "image/png");
ctx.clearRect(0, 0, canvas.width, canvas.height);
zip.file("schema.png", blob);
// download tiles
const url = await getMapURL("tiles", {fullMap: true});
const tilesX = +byId("tileColsOutput").value || 2;
const tilesY = +byId("tileRowsOutput").value || 2;
const scale = +byId("tileScaleOutput").value || 1;
const tolesTotal = tilesX * tilesY;
const tileW = (graphWidth / tilesX) | 0;
const tileH = (graphHeight / tilesY) | 0;
const width = graphWidth * scale;
const height = width * (tileH / tileW);
canvas.width = width;
canvas.height = height;
const img = new Image();
img.src = url;
await loadImage(img);
const alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
function getRowLabel(row) {
const first = row >= alphabet.length ? alphabet[Math.floor(row / alphabet.length) - 1] : "";
const last = alphabet[row % alphabet.length];
return first + last;
}
for (let y = 0, row = 0, id = 1; y + tileH <= graphHeight; y += tileH, row++) {
const rowName = getRowLabel(row);
for (let x = 0, cell = 1; x + tileW <= graphWidth; x += tileW, cell++, id++) {
status.innerHTML = `Rendering tile ${rowName}${cell} (${id} of ${tolesTotal})...`;
ctx.drawImage(img, x, y, tileW, tileH, 0, 0, width, height);
const blob = await canvasToBlob(canvas, "image/png");
ctx.clearRect(0, 0, canvas.width, canvas.height);
zip.file(`${rowName}${cell}.png`, blob);
}
}
status.innerHTML = "Zipping files...";
zip.generateAsync({type: "blob"}).then(blob => {
status.innerHTML = "Downloading the archive...";
const link = document.createElement("a");
link.href = URL.createObjectURL(blob);
link.download = getFileName() + ".zip";
link.click();
link.remove();
status.innerHTML = 'Done. Check .zip file in "Downloads" (crtl + J)';
setTimeout(() => URL.revokeObjectURL(link.href), 5000);
});
// promisified img.onload
function loadImage(img) {
return new Promise((resolve, reject) => {
img.onload = () => resolve();
img.onerror = err => reject(err);
});
}
// promisified canvas.toBlob
function canvasToBlob(canvas, mimeType, qualityArgument = 1) {
return new Promise((resolve, reject) => {
canvas.toBlob(
blob => {
if (blob) resolve(blob);
else reject(new Error("Canvas toBlob() error"));
},
mimeType,
qualityArgument
);
});
}
}
// parse map svg to object url
async function getMapURL(type, options) {
const {
debug = false,
noLabels = false,
noWater = false,
noScaleBar = false,
noIce = false,
noVignette = false,
fullMap = false
} = options || {};
const cloneEl = byId("map").cloneNode(true); // clone svg
cloneEl.id = "fantasyMap";
document.body.appendChild(cloneEl);
const clone = d3.select(cloneEl);
if (!debug) clone.select("#debug")?.remove();
const cloneDefs = cloneEl.getElementsByTagName("defs")[0];
const svgDefs = byId("defElements");
const isFirefox = navigator.userAgent.toLowerCase().indexOf("firefox") > -1;
if (isFirefox && type === "mesh") clone.select("#oceanPattern")?.remove();
if (noLabels) {
clone.select("#labels #states")?.remove();
clone.select("#labels #burgLabels")?.remove();
clone.select("#icons #burgIcons")?.remove();
}
if (noWater) {
clone.select("#oceanBase").attr("opacity", 0);
clone.select("#oceanPattern").attr("opacity", 0);
}
if (noIce) clone.select("#ice")?.remove();
if (noVignette) clone.select("#vignette")?.remove();
if (fullMap) {
// reset transform to show the whole map
clone.attr("width", graphWidth).attr("height", graphHeight);
clone.select("#viewbox").attr("transform", null);
if (!noScaleBar) {
drawScaleBar(clone.select("#scaleBar"), 1);
fitScaleBar(clone.select("#scaleBar"), graphWidth, graphHeight);
}
}
if (noScaleBar) clone.select("#scaleBar")?.remove();
if (type === "svg") removeUnusedElements(clone);
if (customization && type === "mesh") updateMeshCells(clone);
inlineStyle(clone);
// remove unused filters
const filters = cloneEl.querySelectorAll("filter");
for (let i = 0; i < filters.length; i++) {
const id = filters[i].id;
if (cloneEl.querySelector("[filter='url(#" + id + ")']")) continue;
if (cloneEl.getAttribute("filter") === "url(#" + id + ")") continue;
filters[i].remove();
}
// remove unused patterns
const patterns = cloneEl.querySelectorAll("pattern");
for (let i = 0; i < patterns.length; i++) {
const id = patterns[i].id;
if (cloneEl.querySelector("[fill='url(#" + id + ")']")) continue;
patterns[i].remove();
}
// remove unused symbols
const symbols = cloneEl.querySelectorAll("symbol");
for (let i = 0; i < symbols.length; i++) {
const id = symbols[i].id;
if (cloneEl.querySelector("use[*|href='#" + id + "']")) continue;
symbols[i].remove();
}
// add displayed emblems
if (layerIsOn("toggleEmblems") && emblems.selectAll("use").size()) {
cloneEl
.getElementById("emblems")
?.querySelectorAll("use")
.forEach(el => {
const href = el.getAttribute("href") || el.getAttribute("xlink:href");
if (!href) return;
const emblem = byId(href.slice(1));
if (emblem) cloneDefs.append(emblem.cloneNode(true));
});
} else {
cloneDefs.querySelector("#defs-emblems")?.remove();
}
{
// replace ocean pattern href to base64
const image = cloneEl.getElementById("oceanicPattern");
const href = image?.getAttribute("href");
if (href) {
await new Promise(resolve => {
getBase64(href, base64 => {
image.setAttribute("href", base64);
resolve();
});
});
}
}
{
// replace texture href to base64
const image = cloneEl.querySelector("#texture > image");
const href = image?.getAttribute("href");
if (href) {
await new Promise(resolve => {
getBase64(href, base64 => {
image.setAttribute("href", base64);
resolve();
});
});
}
}
// add relief icons
if (cloneEl.getElementById("terrain")) {
const uniqueElements = new Set();
const terrainNodes = cloneEl.getElementById("terrain").childNodes;
for (let i = 0; i < terrainNodes.length; i++) {
const href = terrainNodes[i].getAttribute("href") || terrainNodes[i].getAttribute("xlink:href");
uniqueElements.add(href);
}
const defsRelief = svgDefs.getElementById("defs-relief");
for (const terrain of [...uniqueElements]) {
const element = defsRelief.querySelector(terrain);
if (element) cloneDefs.appendChild(element.cloneNode(true));
}
}
// add wind rose
if (cloneEl.getElementById("compass")) {
const rose = svgDefs.getElementById("defs-compass-rose");
if (rose) cloneDefs.appendChild(rose.cloneNode(true));
}
// add port icon
if (cloneEl.getElementById("anchors")) {
const anchor = svgDefs.getElementById("icon-anchor");
if (anchor) cloneDefs.appendChild(anchor.cloneNode(true));
}
// add grid pattern
if (cloneEl.getElementById("gridOverlay")?.hasChildNodes()) {
const type = cloneEl.getElementById("gridOverlay").getAttribute("type");
const pattern = svgDefs.getElementById("pattern_" + type);
if (pattern) cloneDefs.appendChild(pattern.cloneNode(true));
}
if (!cloneEl.getElementById("fogging-cont")) cloneEl.getElementById("fog")?.remove(); // remove unused fog
if (!cloneEl.getElementById("regions")) cloneEl.getElementById("statePaths")?.remove(); // removed unused statePaths
if (!cloneEl.getElementById("labels")) cloneEl.getElementById("textPaths")?.remove(); // removed unused textPaths
// add armies style
if (cloneEl.getElementById("armies")) {
cloneEl.insertAdjacentHTML(
"afterbegin",
"<style>#armies text {stroke: none; fill: #fff; text-shadow: 0 0 4px #000; dominant-baseline: central; text-anchor: middle; font-family: Helvetica; fill-opacity: 1;}#armies text.regimentIcon {font-size: .8em;}</style>"
);
}
// add xlink: for href to support svg 1.1
if (type === "svg") {
cloneEl.querySelectorAll("[href]").forEach(el => {
const href = el.getAttribute("href");
el.removeAttribute("href");
el.setAttribute("xlink:href", href);
});
}
// add hatchings
const hatchingUsers = cloneEl.querySelectorAll(`[fill^='url(#hatch']`);
const hatchingFills = unique(Array.from(hatchingUsers).map(el => el.getAttribute("fill")));
const hatchingIds = hatchingFills.map(fill => fill.slice(5, -1));
for (const hatchingId of hatchingIds) {
const hatching = svgDefs.getElementById(hatchingId);
if (hatching) cloneDefs.appendChild(hatching.cloneNode(true));
}
// load fonts
const usedFonts = getUsedFonts(cloneEl);
const fontsToLoad = usedFonts.filter(font => font.src);
if (fontsToLoad.length) {
const dataURLfonts = await loadFontsAsDataURI(fontsToLoad);
const fontFaces = dataURLfonts
.map(({family, src, unicodeRange = "", variant = "normal"}) => {
return `@font-face {font-family: "${family}"; src: ${src}; unicode-range: ${unicodeRange}; font-variant: ${variant};}`;
})
.join("\n");
const style = document.createElement("style");
style.setAttribute("type", "text/css");
style.innerHTML = fontFaces;
cloneEl.querySelector("defs").appendChild(style);
}
clone.remove();
const serialized =
`<?xml version="1.0" encoding="UTF-8" standalone="no"?>` + new XMLSerializer().serializeToString(cloneEl);
const blob = new Blob([serialized], {type: "image/svg+xml;charset=utf-8"});
const url = window.URL.createObjectURL(blob);
window.setTimeout(() => window.URL.revokeObjectURL(url), 5000);
return url;
}
// remove hidden g elements and g elements without children to make downloaded svg smaller in size
function removeUnusedElements(clone) {
if (!terrain.selectAll("use").size()) clone.select("#defs-relief")?.remove();
for (let empty = 1; empty; ) {
empty = 0;
clone.selectAll("g").each(function () {
if (!this.hasChildNodes() || this.style.display === "none" || this.classList.contains("hidden")) {
empty++;
this.remove();
}
if (this.hasAttribute("display") && this.style.display === "inline") this.removeAttribute("display");
});
}
}
function updateMeshCells(clone) {
const data = renderOcean.checked ? grid.cells.i : grid.cells.i.filter(i => grid.cells.h[i] >= 20);
const scheme = getColorScheme(terrs.select("#landHeights").attr("scheme"));
clone.select("#heights").attr("filter", "url(#blur1)");
clone
.select("#heights")
.selectAll("polygon")
.data(data)
.join("polygon")
.attr("points", d => getGridPolygon(d))
.attr("id", d => "cell" + d)
.attr("stroke", d => getColor(grid.cells.h[d], scheme));
}
// for each g element get inline style
function inlineStyle(clone) {
const emptyG = clone.append("g").node();
const defaultStyles = window.getComputedStyle(emptyG);
clone.selectAll("g, #ruler *, #scaleBar > text").each(function () {
const compStyle = window.getComputedStyle(this);
let style = "";
for (let i = 0; i < compStyle.length; i++) {
const key = compStyle[i];
const value = compStyle.getPropertyValue(key);
if (key === "cursor") continue; // cursor should be default
if (this.hasAttribute(key)) continue; // don't add style if there is the same attribute
if (value === defaultStyles.getPropertyValue(key)) continue;
style += key + ":" + value + ";";
}
for (const key in compStyle) {
const value = compStyle.getPropertyValue(key);
if (key === "cursor") continue; // cursor should be default
if (this.hasAttribute(key)) continue; // don't add style if there is the same attribute
if (value === defaultStyles.getPropertyValue(key)) continue;
style += key + ":" + value + ";";
}
if (style != "") this.setAttribute("style", style);
});
emptyG.remove();
}
function saveGeoJsonCells() {
const {cells, vertices} = pack;
const json = {type: "FeatureCollection", features: []};
const getPopulation = i => {
const [r, u] = getCellPopulation(i);
return rn(r + u);
};
const getHeight = i => parseInt(getFriendlyHeight([...cells.p[i]]));
function getCellCoordinates(cellVertices) {
const coordinates = cellVertices.map(vertex => {
const [x, y] = vertices.p[vertex];
return getCoordinates(x, y, 4);
});
return [[...coordinates, coordinates[0]]];
}
cells.i.forEach(i => {
const coordinates = getCellCoordinates(cells.v[i]);
const height = getHeight(i);
const biome = cells.biome[i];
const type = pack.features[cells.f[i]].type;
const population = getPopulation(i);
const state = cells.state[i];
const province = cells.province[i];
const culture = cells.culture[i];
const religion = cells.religion[i];
const neighbors = cells.c[i];
const properties = {id: i, height, biome, type, population, state, province, culture, religion, neighbors};
const feature = {type: "Feature", geometry: {type: "Polygon", coordinates}, properties};
json.features.push(feature);
});
const fileName = getFileName("Cells") + ".geojson";
downloadFile(JSON.stringify(json), fileName, "application/json");
}
function saveGeoJsonRoutes() {
const features = pack.routes.map(({i, points, group, name = null}) => {
const coordinates = points.map(([x, y]) => getCoordinates(x, y, 4));
return {
type: "Feature",
geometry: {type: "LineString", coordinates},
properties: {id: i, group, name}
};
});
const json = {type: "FeatureCollection", features};
const fileName = getFileName("Routes") + ".geojson";
downloadFile(JSON.stringify(json), fileName, "application/json");
}
function saveGeoJsonRivers() {
const features = pack.rivers.map(
({i, cells, points, source, mouth, parent, basin, widthFactor, sourceWidth, discharge, name, type}) => {
if (!cells || cells.length < 2) return;
const meanderedPoints = Rivers.addMeandering(cells, points);
const coordinates = meanderedPoints.map(([x, y]) => getCoordinates(x, y, 4));
return {
type: "Feature",
geometry: {type: "LineString", coordinates},
properties: {id: i, source, mouth, parent, basin, widthFactor, sourceWidth, discharge, name, type}
};
}
);
const json = {type: "FeatureCollection", features};
const fileName = getFileName("Rivers") + ".geojson";
downloadFile(JSON.stringify(json), fileName, "application/json");
}
function saveGeoJsonMarkers() {
const features = pack.markers.map(marker => {
const {i, type, icon, x, y, size, fill, stroke} = marker;
const coordinates = getCoordinates(x, y, 4);
const note = notes.find(note => note.id === id);
const properties = {id: i, type, icon, x, y, ...note, size, fill, stroke};
return {type: "Feature", geometry: {type: "Point", coordinates}, properties};
});
const json = {type: "FeatureCollection", features};
const fileName = getFileName("Markers") + ".geojson";
downloadFile(JSON.stringify(json), fileName, "application/json");
}