diff --git a/kartaview_exif_mapper/README.md b/kartaview_exif_mapper/README.md
index 9dc64e9e..2be1af98 100644
--- a/kartaview_exif_mapper/README.md
+++ b/kartaview_exif_mapper/README.md
@@ -15,6 +15,15 @@ ts-node main.ts --folder=/folder/path
 Cela va convertir en trace GPX les fichiers de métadonnées kartaview
 retrouver le dossier et les photos correspondantes, et appliquer les informations exif de positionnement gps aux photos afin de les envoyer sur panoramax avec l'outil geovisio_cli. 
 
+## options de CLI
+
+sequence : numéro de séquence, correspond à un dossier photo de l'export
+
+folder : chemin du dossier contenant l'export kartaview
+
+gpx-output : nom de fichier de gpx en sortie de conversion
+
+gpx-input : un chemin de fichier txt de kartaview donnant les informations de positionnements de trace pour une séquence
 
 # trace gpx example
 prendre dans la section body, l'info géographique g, colonne 3 et 4 pour latitude, longitude.
diff --git a/kartaview_exif_mapper/main.ts b/kartaview_exif_mapper/main.ts
index 40ad0496..cef8d2f1 100644
--- a/kartaview_exif_mapper/main.ts
+++ b/kartaview_exif_mapper/main.ts
@@ -22,7 +22,7 @@ let folders_list_txt: any = [
     // "6102537", "6102569", "6127433", "6133465", "6242729", "6329129", "6329177", "6329241", "6329305", "6329321", "6738633", "6738809", "6738953", "6752761",
     // "6752889",
     // "6752905",
-    // "6752921",
+    "6752921",
     "6752937",
     // "6752953", "6760985", "6761049", "6761289", "6794633", "7325929", "7326457", "7328265", "7330009", "7330025",
     // "7330041",
@@ -70,11 +70,11 @@ function makeGpxFromKartaview(tableKartaviewTrace: any) {
     let track_points: string = '';
 
     tableKartaviewTrace.forEach((elem: any) => {
-        console.log('elem', elem)
-        console.log('elem', elem[6] *1000)
-        let utc_time = new Date(elem[6] *1000)
+        // 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())
+        // 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>
@@ -107,9 +107,27 @@ function makeGpxFromKartaview(tableKartaviewTrace: any) {
     return content;
 }
 
+function reduceGpxPointsToInterval(sequence_name: any) {
 
-function openKartaviewTxtGPX(filepath
-                                 : any) {
+    let photos_count_in_sequence = photo_folders_counter[sequence_name].length
+    let interval = Math.round(gpxData[sequence_name].length / photos_count_in_sequence)
+    let ii = 1;
+    console.log('--------- sequence_name', sequence_name)
+    console.log('--------- interval', interval)
+    // tableKartaviewTrace.forEach((elem: any) => {
+    //     // only work on an interval of files to assign gps coordinates
+    //     ii--
+    //     if(ii<=0){
+    //         // set the gps coordinates to the picture in sequence
+    //         let timestamp = elem[6] * 1000
+    //         let date = new Date(timestamp)
+    //         ii =interval*1
+    //     }
+    //
+    // })
+}
+
+function openKartaviewTxtGPX(filepath: any, sequence_name: string) {
     console.log('filepath', filepath)
     let boom = filepath.split('/')
     let fileName = boom[boom.length - 1]
@@ -135,12 +153,14 @@ function openKartaviewTxtGPX(filepath
                 let gps = gpsmodel.split(';')
                 gps.push(timestamp)
                 tableKartaviewTrace.push(gps)
-                let date = new Date(boom[0] * 1000)
+                // let date = new Date(boom[0] * 1000)
                 // console.log('*', date, gps[0], gps[1])
             }
         })
-        gpxData[fileName] = [...tableKartaviewTrace]
-        console.log('gpxData', gpxData)
+        gpxData[sequence_name] = [...tableKartaviewTrace]
+
+
+        // console.log('gpxData', gpxData)
         let content_gpx = makeGpxFromKartaview(tableKartaviewTrace)
 
 
@@ -148,6 +168,9 @@ function openKartaviewTxtGPX(filepath
 
             writeFile('' + fileName + '_trace.gpx', content_gpx)
         }
+        if(Object.keys(gpxData).length === folders_list_txt.length){
+            gather()
+        }
         // console.log('gpx_content', gpx_content)
     })
 }
@@ -206,22 +229,20 @@ function writeFile(fileName: string, fileContent: any) {
     )
 }
 
+let photo_folders_counter: any = {}
+
 function listPhotos(sequence_number: string) {
     let photo_folder = dossier_photo + '/' + sequence_number;
 
     let gps_points = gpxData[sequence_number]
-    console.log('gps_points', gps_points)
+    // 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
+            // console.log('listOfFiles', listOfFiles)
+            photo_folders_counter[sequence_number] = listOfFiles
 
         })
 }
@@ -234,7 +255,7 @@ async function getGPXAndEnrichExifOfPhotosInFolder(sequence_number: string) {
 
             console.log('listOfFiles', listOfFiles)
             listOfFiles?.forEach((file: string) => {
-                openKartaviewTxtGPX(dossier_gpx_input + '/' + sequence_number + '/' + file)
+                openKartaviewTxtGPX(dossier_gpx_input + '/' + sequence_number + '/' + file, sequence_number)
 
             })
         }, err => {
@@ -243,11 +264,27 @@ async function getGPXAndEnrichExifOfPhotosInFolder(sequence_number: string) {
 
     listPhotos(sequence_number)
 
+
 }
 
 console.log('dossiers à traiter: ', folders_list_txt.length)
 folders_list_txt.forEach((elem: string) => {
-    getGPXAndEnrichExifOfPhotosInFolder(elem)
-
+    getGPXAndEnrichExifOfPhotosInFolder(elem).then(r => {
+            console.log('r', r)
+        }
+    )
 })
 
+
+function gather() {
+
+
+    // console.log('gpxData', gpxData)
+    console.log('sequences', folders_list_txt)
+    folders_list_txt.forEach((sequence: string) => {
+
+        reduceGpxPointsToInterval(sequence)
+
+    })
+
+}