diff --git a/kartaview_exif_mapper/main.ts b/kartaview_exif_mapper/main.ts
index 98f46af2..40ad0496 100644
--- a/kartaview_exif_mapper/main.ts
+++ b/kartaview_exif_mapper/main.ts
@@ -28,6 +28,8 @@ let folders_list_txt: any = [
     // "7330041",
     // "7330057"
 ]
+
+let enable_write_gpx_file = true;
 let folder = "/home/poule/encrypted/stockage-syncable/photos/imagerie kartaview carto tel/kartaview_export_storage/share2tykayn/"
 let dossier_gpx: string = "./output_gpx"
 let file_gpx: string = "3596249_d875a_60a0f9bf38f99.txt"
@@ -66,9 +68,16 @@ function makeGpxFromKartaview(tableKartaviewTrace: any) {
 
     console.log('make gpx')
     let track_points: string = '';
-    // TODO build track points
+
     tableKartaviewTrace.forEach((elem: any) => {
+        console.log('elem', elem)
+        console.log('elem', elem[6] *1000)
+        let utc_time = new Date(elem[6] *1000)
+
+        console.log('utc_time', utc_time.toISOString())
         track_points = `${track_points}<trkpt lat="${elem[0]}" lon="${elem[1]}">
+    <ele>${elem[2]}</ele>
+    <time>${utc_time.toISOString()}</time>
 </trkpt>
 `
     })
@@ -120,17 +129,25 @@ function openKartaviewTxtGPX(filepath
             if (elem.indexOf(":g:") > -1) {
                 // do stuff on gpxData to enrich it
                 let boom = elem.split(':')
+                let timestamp = boom[0]
+
                 let gpsmodel = boom[2]
                 let gps = gpsmodel.split(';')
+                gps.push(timestamp)
                 tableKartaviewTrace.push(gps)
                 let date = new Date(boom[0] * 1000)
                 // console.log('*', date, gps[0], gps[1])
             }
         })
         gpxData[fileName] = [...tableKartaviewTrace]
+        console.log('gpxData', gpxData)
         let content_gpx = makeGpxFromKartaview(tableKartaviewTrace)
 
-        writeFile('' + fileName + '_trace.gpx', content_gpx)
+
+        if (enable_write_gpx_file) {
+
+            writeFile('' + fileName + '_trace.gpx', content_gpx)
+        }
         // console.log('gpx_content', gpx_content)
     })
 }
@@ -189,16 +206,23 @@ function writeFile(fileName: string, fileContent: any) {
     )
 }
 
-function listPhotos(sequence_number: string){
-    getAllFilesInFolder(dossier_photo + '/' + sequence_number)
+function listPhotos(sequence_number: string) {
+    let photo_folder = dossier_photo + '/' + sequence_number;
+
+    let gps_points = gpxData[sequence_number]
+    console.log('gps_points', gps_points)
+    // pour réconcilier les données, on divise la trace en part égales du nombre de photos présentes dans la séquence.
+
+    getAllFilesInFolder(photo_folder)
         .then(listOfFiles => {
 
             console.log('listOfFiles', listOfFiles)
+
+            // open exif data and get the creation date.
+
             // look for photos with corresponding timestamps in gpxData
             // add gps exif data to matching photos
 
-
-            // let listOfFiles: any = getAllFilesInFolder(dossier_photo + '/' + sequence_number)
         })
 }
 
@@ -207,16 +231,18 @@ async function getGPXAndEnrichExifOfPhotosInFolder(sequence_number: string) {
     // get metadata txt file in metadata folder
     getAllFilesInFolder(dossier_gpx_input + '/' + sequence_number)
         .then(listOfFiles => {
-            // let listOfFiles: any = getAllFilesInFolder(dossier_gpx_input+ '/' + sequence_number )
+
             console.log('listOfFiles', listOfFiles)
             listOfFiles?.forEach((file: string) => {
                 openKartaviewTxtGPX(dossier_gpx_input + '/' + sequence_number + '/' + file)
+
             })
         }, err => {
             throw new Error(err)
         })
 
-    console.log('gpxData', gpxData)
+    listPhotos(sequence_number)
+
 }
 
 console.log('dossiers à traiter: ', folders_list_txt.length)