2 files changed, 18 insertions, 5 deletions

diff --git a/src/dumbymap.mjs b/src/dumbymap.mjs
index 35a4614..593875e 100644
--- a/src/dumbymap.mjs
+++ b/src/dumbymap.mjs
@@ -111,11 +111,17 @@ export const markdown2HTML = (container, mdContent) => {
  *
  * @param {HTMLElement} container - The container element for the maps
  * @param {Object} options - Configuration options
+ * @param {string} options.crs - CRS in EPSG/ESRI code, see epsg.io
  * @param {number} [options.delay=1000] - Delay before rendering maps (in milliseconds)
  * @param {Function} options.mapCallback - Callback function to be called after map rendering
  */
-export const generateMaps = (container, { layouts = [], delay, renderCallback } = {}) => {
-  /** Prepare Contaner/HTML Holder/Showcase */
+export const generateMaps = (container, {
+  crs = 'EPSG:4326',
+  layouts = [],
+  delay,
+  renderCallback,
+} = {}) => {
+  /** Prepare Contaner/HTML-Holder/Showcase */
   container.classList.add('Dumby')
   delete container.dataset.layout
   container.dataset.layout = defaultLayouts[0].name
diff --git a/src/editor.mjs b/src/editor.mjs
index 04c0502..e12073f 100644
--- a/src/editor.mjs
+++ b/src/editor.mjs
@@ -14,15 +14,20 @@ import LeaderLine from 'leader-line'
  */
 
 // Set up Containers {{{
-/** Variables about dumbymap and editor **/
+
+/** Variables: page */
 const url = new URL(window.location)
+const pageParams = url.searchParams
+const crs = pageParams.get('crs') ?? 'EPSG:4326'
+
+/** Variables: dumbymap and editor **/
 const context = document.querySelector('[data-mode]')
 const dumbyContainer = document.querySelector('.DumbyMap')
 dumbyContainer.dataset.scrollLine = ''
 const textArea = document.querySelector('.editor textarea')
 let dumbymap
 
-/** Variables about Reference Style Links in Markdown */
+/** Variables: Reference Style Links in Markdown */
 const refLinkPattern = /\[([^\x5B\x5D]+)\]:\s+(\S+)(\s["'](\S+)["'])?/
 let refLinks = []
 
@@ -516,7 +521,9 @@ const menuForEditor = (event, menu) => {
 const updateDumbyMap = (callback = null) => {
   markdown2HTML(dumbyContainer, editor.value())
   // debounceForMap(dumbyContainer, afterMapRendered)
-  dumbymap = generateMaps(dumbyContainer)
+  dumbymap = generateMaps(dumbyContainer, {
+    crs,
+  })
   // Set onscroll callback
   const htmlHolder = dumbymap.htmlHolder
   htmlHolder.onscroll = updateScrollLine(htmlHolder)