diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5107184b0..abc7a219b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,10 +13,11 @@ and this project adheres to
 <!-- write down unreleased development here -->
 * [main] address: use search API end points for getting postal code and reference address (https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/316)
 * [main] address: in edit mode, select the encoded values in multiselect for address reference and city (https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/316)
-
 * [person search] fix bug when using birthdate after and birthdate before
 * [person search] increase pertinence when lastname begins with search pattern
 * [activity] create work if a work with same social action is not associated to the activity
+* [visgraph] improve and fix bugs on vis-network relationship graph
+* [bugfix] posting of birth- and deathdate through api fixed.
 
 ## Test releases
 
@@ -27,6 +28,7 @@ and this project adheres to
 * [activity] layout for issues / actions
 * [activity][bugfix] in edit mode, the form will now load the social action list
 
+
 ### Test release 2021-11-29
 
 * [person] suggest entities (person | thirdparty) when creating/editing the accompanying course (https://gitlab.com/champs-libres/departement-de-la-vendee/accent-suivi-developpement/-/issues/119)
@@ -53,7 +55,9 @@ and this project adheres to
 * add an endpoint for checking permissions. See https://gitlab.com/Chill-Projet/chill-bundles/-/merge_requests/232
 * [activity] for a new activity: suggest and create on-the-fly locations based on the accompanying course location + location of the suggested parties
 * [calendar] for a new rdv: suggest and create on-the-fly locations based on the accompanying course location + location of the suggested parties
-* [bugfix] posting of birth- and deathdate through api fixed.
+
+
+## Test releases
 
 ### Test release 2021-11-22
 
diff --git a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/App.vue b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/App.vue
index 8696041f9..5550c3e54 100644
--- a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/App.vue
+++ b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/App.vue
@@ -53,6 +53,7 @@
                   <div class="row">
                      <div class="col-12 text-center">{{ $t('visgraph.between') }}<br>{{ $t('visgraph.and') }}</div>
                      <div class="col">
+                        <small>{{ getPersonAge(modal.data.from) }}</small>
                         <h4>{{ getPerson(modal.data.from).text }}</h4>
                         <p class="text-start" v-if="relation && relation.title">
                            <span v-if="reverse">
@@ -64,6 +65,7 @@
                         </p>
                      </div>
                      <div class="col text-end">
+                        <small>{{ getPersonAge(modal.data.to) }}</small>
                         <h4>{{ getPerson(modal.data.to).text }}</h4>
                         <p class="text-end" v-if="relation && relation.title">
                            <span v-if="reverse">
@@ -119,8 +121,9 @@ import vis from 'vis-network/dist/vis-network'
 import { mapState, mapGetters } from "vuex"
 import Modal from 'ChillMainAssets/vuejs/_components/Modal'
 import VueMultiselect from 'vue-multiselect'
-import { getRelationsList, postRelationship, patchRelationship, deleteRelationship } from "./api";
-import { splitId } from "./vis-network";
+import { getRelationsList, postRelationship, patchRelationship, deleteRelationship } from "./api"
+import { splitId, getAge } from "./vis-network"
+import { visMessages } from "./i18n";
 
 export default {
    name: "App",
@@ -128,6 +131,7 @@ export default {
       Modal,
       VueMultiselect
    },
+   props: ['household_id'],
    data() {
       return {
          container: '',
@@ -152,7 +156,9 @@ export default {
                class: null,
                text: null
             },
-         }
+         },
+         canvas: null,
+         link: null,
       }
    },
    computed: {
@@ -164,7 +170,7 @@ export default {
       ]),
 
       visgraph_data() {
-         console.log('::: visgraph_data :::', this.nodes.length, 'nodes,', this.edges.length, 'edges')
+         //console.log('::: visgraph_data :::', this.nodes.length, 'nodes,', this.edges.length, 'edges')
          return {
             nodes: this.nodes,
             edges: this.edges
@@ -172,12 +178,12 @@ export default {
       },
 
       refreshNetwork() {
-         console.log('--- refresh network')
+         //console.log('--- refresh network')
          window.network.setData(this.visgraph_data)
       },
 
       legendLayers() {
-         console.log('--- refresh legend and rebuild checked Layers')
+         //console.log('--- refresh legend and rebuild checked Layers')
          this.checkedLayers = []
          let layersDisplayed = [
             ...this.nodes.filter(n => n.id.startsWith('household')),
@@ -193,7 +199,7 @@ export default {
       },
 
       checkedLayers() { // required to refresh data checkedLayers
-         console.log('--- checkedLayers')
+         //console.log('--- checkedLayers')
          return this.checkedLayers
       },
 
@@ -218,7 +224,7 @@ export default {
    },
    watch: {
       updateHack(newValue, oldValue) {
-         console.log(`--- updateHack ${oldValue} <> ${newValue}`)
+         //console.log(`--- updateHack ${oldValue} <> ${newValue}`)
          if (oldValue !== newValue) {
             this.forceUpdateComponent()
          }
@@ -229,6 +235,9 @@ export default {
       this.initGraph()
       this.listenOnGraph()
       this.getRelationsList()
+
+      this.canvas = document.getElementById('visgraph').querySelector('canvas')
+      this.link = document.getElementById('exportCanvasBtn')
    },
    methods: {
 
@@ -255,27 +264,27 @@ export default {
 
                case 'person':
                   let person = this.nodes.filter(n => n.id === node)[0]
-                  console.log('@@@@@@ event on selected Node', person.id)
+                  //console.log('@@@@@@ event on selected Node', person.id)
                   if (this.listenPersonFlag === 'normal') {
                      if (person.folded === true) {
-                        console.log('   @@> expand mode event')
+                        //console.log('   @@> expand mode event')
                         this.$store.commit('unfoldPerson', person)
                      }
                   } else {
-                     console.log('   @@> create link mode event')
+                     //console.log('   @@> create link mode event')
                      this.listenStepsToAddRelationship(person)
                   }
                   break
 
                case 'household':
                   let household = this.nodes.filter(n => n.id === node)[0]
-                  console.log('@@@@@@ event on selected Node', household.id)
+                  //console.log('@@@@@@ event on selected Node', household.id)
                   this.$store.dispatch('unfoldPersonsByHousehold', household)
                   break
 
                case 'accompanying_period':
                   let course = this.nodes.filter(n => n.id === node)[0]
-                  console.log('@@@@@@ event on selected Node', course.id)
+                  //console.log('@@@@@@ event on selected Node', course.id)
                   this.$store.dispatch('unfoldPersonsByCourse', course)
                   break
 
@@ -290,7 +299,7 @@ export default {
             }
             let link = data.edges[0]
             let linkType = splitId(link, 'link')
-            console.log('@@@@@ event on selected Edge', data.edges.length, linkType, data)
+            //console.log('@@@@@ event on selected Edge', data.edges.length, linkType, data)
 
             if (linkType.startsWith('relationship')) {
                //console.log('linkType relationship')
@@ -314,7 +323,7 @@ export default {
          })
       },
       listenStepsToAddRelationship(person) {
-         console.log('   @@> listenStep', this.listenPersonFlag)
+         //console.log('   @@> listenStep', this.listenPersonFlag)
          if (this.listenPersonFlag === 'step2') {
             //console.log('   @@> person 2', person)
             this.newEdgeData.to = person.id
@@ -333,7 +342,7 @@ export default {
       /// control Layers
       toggleLayer(value) {
          let id = value.target.value
-         console.log('@@@@@@ toggle Layer', id)
+         //console.log('@@@@@@ toggle Layer', id)
          this.forceUpdateComponent()
          if (this.checkedLayers.includes(id)) {
             this.removeLayer(id)
@@ -382,7 +391,7 @@ export default {
             title: null,
             button: { class: null, text: null, }
          }
-         console.log('==- reset Form', this.modal.data)
+         //console.log('==- reset Form', this.modal.data)
       },
       getRelationsList() {
          //console.log('fetch relationsList')
@@ -400,12 +409,16 @@ export default {
          let person = this.persons.filter(p => p.id === id)
          return person[0]
       },
+      getPersonAge(id) {
+         let person = this.getPerson(id)
+         return getAge(person)
+      },
 
       // actions
       createRelationship() {
          this.displayHelpMessage = true
          this.listenPersonFlag = 'step1' // toggle listener in create link mode
-         console.log('   @@> switch listener to create link mode:', this.listenPersonFlag)
+         //console.log('   @@> switch listener to create link mode:', this.listenPersonFlag)
       },
       dropRelationship() {
          //console.log('delete', this.modal.data)
@@ -417,13 +430,13 @@ export default {
          this.forceUpdateComponent()
       },
       submitRelationship() {
-         console.log('submitRelationship', this.modal.action)
+         //console.log('submitRelationship', this.modal.action)
          switch (this.modal.action) {
 
             case 'create':
                return postRelationship(this.modal.data)
                .then(relationship => new Promise(resolve => {
-                  console.log('post relationship response', relationship)
+                  //console.log('post relationship response', relationship)
                   this.$store.dispatch('addLinkFromRelationship', relationship)
                   this.modal.showModal = false
                   this.resetForm()
@@ -435,7 +448,7 @@ export default {
             case 'edit':
                return patchRelationship(this.modal.data)
                .then(relationship => new Promise(resolve => {
-                  console.log('patch relationship response', relationship)
+                  //console.log('patch relationship response', relationship)
                   this.$store.commit('updateLink', relationship)
                   this.modal.showModal = false
                   this.resetForm()
@@ -450,39 +463,44 @@ export default {
       },
 
       // export image
-      exportCanvasAsImage() {
-         const canvas = document.getElementById('visgraph')
-            .querySelector('canvas')
-         console.log(canvas)
+      async exportCanvasAsImage() {
 
-         let link = document.getElementById('exportCanvasBtn')
-         link.download = "filiation.png"
+         let
+            filename = `filiation_${this.household_id}.jpg`,
+            mime = 'image/jpeg',
+            quality = 0.85,
+            footer = `© Chill ${new Date().getFullYear()}`,
+            timestamp = `${visMessages.fr.visgraph.relationship_household} n° ${this.household_id} — ${new Date().toLocaleString()}`
 
-         canvas.toBlob(blob => {
-            console.log(blob)
-            link.href = URL.createObjectURL(blob)
-         }, 'image/png')
+         // resolve toBlob in a Promise
+         const getCanvasBlob = canvas => new Promise(resolve => {
+            canvas.toBlob(blob => resolve(blob), mime, quality)
+         })
 
-         /*
-         TODO improve feature
-
-         // 1. fonctionne, mais pas de contrôle sur le nom
-         if (canvas && canvas.getContext('2d')) {
-            let img = canvas.toDataURL('image/png;base64;')
-            img = img.replace('image/png','image/octet-stream')
-            window.open(img, '', 'width=1000, height=1000')
-         }
-
-         // 2. fonctionne, mais 2 click et pas compatible avec tous les browsers
-         let link = document.getElementById('exportCanvasBtn')
-         link.download = "image.png"
-         canvas.toBlob(blob => {
-            link.href = URL.createObjectURL(blob)
-         }, 'image/png')
-         */
+         // build image from new temporary canvas
+         let tmpCanvas = document.createElement('canvas')
+         tmpCanvas.width = this.canvas.width
+         tmpCanvas.height = this.canvas.height
 
+         let ctx = tmpCanvas.getContext('2d')
+         ctx.beginPath()
+         ctx.fillStyle = '#fff'
+         ctx.fillRect(0, 0, tmpCanvas.width, tmpCanvas.height);
+         ctx.fillStyle = '#9d4600'
+         ctx.fillText(footer +' — '+ timestamp, 5, tmpCanvas.height - 10)
+         ctx.drawImage(this.canvas, 0, 0)
 
+         return await getCanvasBlob(tmpCanvas)
+            .then(blob => {
+               let url = document.createElement("a")
+               url.download = filename
+               url.href = window.URL.createObjectURL(blob)
+               url.click()
+               console.log('url', url.href)
+               URL.revokeObjectURL(url.href)
+         })
       }
+
    }
 }
 </script>
diff --git a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/i18n.js b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/i18n.js
index c2ee09960..8047aea11 100644
--- a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/i18n.js
+++ b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/i18n.js
@@ -24,6 +24,7 @@ const visMessages = {
             refresh: "Rafraîchir",
             screenshot: "Prendre une photo",
             choose_relation: "Choisissez le lien de parenté",
+            relationship_household: "Filiation du ménage",
         },
         edit: 'Éditer',
         del: 'Supprimer',
diff --git a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/index.js b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/index.js
index ca76f283b..5e8989e49 100644
--- a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/index.js
+++ b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/index.js
@@ -16,7 +16,12 @@ persons.forEach(person => {
 })
 
 const app = createApp({
-    template: `<app></app>`
+    template: `<app :household_id="this.household_id"></app>`,
+    data() {
+        return {
+            household_id: JSON.parse(container.dataset.householdId)
+        }
+    }
 })
 .use(store)
 .use(i18n)
diff --git a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/store.js b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/store.js
index 119a7b29c..10269c6c8 100644
--- a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/store.js
+++ b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/store.js
@@ -112,7 +112,7 @@ const store = createStore({
                 }
             })
             //console.log('array', array.map(item => item.person.id))
-            console.log('get persons group', group.map(f => f.id))
+            //console.log('get persons group', group.map(f => f.id))
             return group
         },
 
@@ -120,13 +120,17 @@ const store = createStore({
     },
     mutations: {
         addPerson(state, [person, options]) {
+            let age = getAge(person)
+            age = (age === '')? '' : ' - ' + age
+
             let debug = ''
             /// Debug mode: uncomment to display person_id on visgraph
             //debug = `\nid ${person.id}`
+
             person.group = person.type
             person._id = person.id
             person.id = `person_${person.id}`
-            person.label = `*${person.text}*\n_${getGender(person.gender)} - ${getAge(person.birthdate)}_${debug}` //
+            person.label = `*${person.text}*\n_${getGender(person.gender)}${age}_${debug}`
             person.folded = false
             // folded is used for missing persons
             if (options.folded) {
@@ -161,7 +165,7 @@ const store = createStore({
             state.links.push(link)
         },
         updateLink(state, link) {
-            console.log('updateLink', link)
+            //console.log('updateLink', link)
             let link_ = {
                 from: `person_${link.fromPerson.id}`,
                 to: `person_${link.toPerson.id}`,
@@ -264,7 +268,7 @@ const store = createStore({
         fetchInfoForPerson({ dispatch }, person) {
                 // TODO enfants hors ménages
                 // example: household 61
-                // console.log(person.text, 'household', person.current_household_id)
+                //console.log(person.text, 'household', person.current_household_id)
             if (null !== person.current_household_id) {
                 dispatch('fetchHouseholdForPerson', person)
             }
@@ -305,15 +309,16 @@ const store = createStore({
          */
         addLinkFromPersonsToHousehold({ commit, getters, dispatch }, household) {
             let members = getters.getMembersByHousehold(household.id)
-            console.log('add link for', members.length, 'members')
+            //console.log('add link for', members.length, 'members')
             members.forEach(m => {
                 commit('addLink', {
                     from: `${m.person.type}_${m.person.id}`,
-                    to: `household_${m.person.current_household_id}`,
-                    id: `household_${m.person.current_household_id}-person_${m.person.id}`,
+                    to: `${household.id}`,
+                    id: `${household.id}-person_${m.person.id}`,
                     arrows: 'from',
                     color: 'pink',
                     font: { color: '#D04A60' },
+                    dashes: (getHouseholdWidth(m) === 1)? [0,4] : false,  //edge style:  [dash, gap, dash, gap]
                     label: getHouseholdLabel(m),
                     width: getHouseholdWidth(m),
                 })
@@ -362,7 +367,7 @@ const store = createStore({
          */
         addLinkFromPersonsToCourse({ commit, getters, dispatch }, course) {
             const participations = getters.getParticipationsByCourse(course.id)
-            console.log('add link for', participations.length, 'participations')
+            //console.log('add link for', participations.length, 'participations')
             participations.forEach(p => {
                 //console.log(p.person.id)
                 commit('addLink', {
@@ -445,7 +450,7 @@ const store = createStore({
          *  @param array
          */
         addMissingPerson({ commit, getters, dispatch }, [person, parent]) {
-            console.log('! add missing Person', person.id)
+            //console.log('! add missing Person', person.id)
             commit('markPersonLoaded', person.id)
             commit('addPerson', [person, { folded: true }])
             if (getters.isExcludedNode(parent.id)) {
@@ -467,7 +472,7 @@ const store = createStore({
             getters.getPersonsGroup(participations)
             .forEach(person => {
                 if (person.folded === true) {
-                    console.log('-=. unfold and expand person', person.id)
+                    //console.log('-=. unfold and expand person', person.id)
                     commit('unfoldPerson', person)
                     dispatch('fetchInfoForPerson', person)
                 }
@@ -485,7 +490,7 @@ const store = createStore({
             getters.getPersonsGroup(members)
             .forEach(person => {
                 if (person.folded === true) {
-                    console.log('-=. unfold and expand person', person.id)
+                    //console.log('-=. unfold and expand person', person.id)
                     commit('unfoldPerson', person)
                     dispatch('fetchInfoForPerson', person)
                 }
diff --git a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/vis-network.js b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/vis-network.js
index e95bc0d0b..3e00db883 100644
--- a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/vis-network.js
+++ b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/VisGraph/vis-network.js
@@ -13,13 +13,12 @@ window.options = {
     locale: 'fr',
     locales: visMessages,
     /*
+    */
     configure: {
         enabled: true,
-        filter: 'nodes,edges',
-        //container: undefined,
+        filter: 'physics',
         showButton: true
     },
-    */
     physics: {
         enabled: true,
         barnesHut: {
@@ -37,8 +36,8 @@ window.options = {
             centralGravity: 0.01,
             springLength: 100,
             springConstant: 0.08,
-            damping: 0.4,
-            avoidOverlap: 0
+            damping: 0.75,
+            avoidOverlap: 0.00
         },
         repulsion: {
             centralGravity: 0.2,
@@ -159,17 +158,21 @@ const getGender = (gender) => {
 }
 
 /**
- * TODO Repeat getAge() in PersonRenderBox.vue
- * @param birthdate
+ * TODO only one abstract function (-> getAge() is repeated in PersonRenderBox.vue)
+ * @param person
  * @returns {string|null}
  */
-const getAge = (birthdate) => {
-    if (null === birthdate) {
-        return null
+const getAge = (person) => {
+    if (person.birthdate) {
+        let birthdate = new Date(person.birthdate.datetime)
+        if (person.deathdate) {
+            let deathdate = new Date(person.deathdate.datetime)
+            return (deathdate.getFullYear() - birthdate.getFullYear()) + visMessages.fr.visgraph.years
+        }
+        let now = new Date()
+        return (now.getFullYear() - birthdate.getFullYear()) + visMessages.fr.visgraph.years
     }
-    const birthday = new Date(birthdate.datetime)
-    const now = new Date()
-    return (now.getFullYear() - birthday.getFullYear()) + ' '+ visMessages.fr.visgraph.years
+    return ''
 }
 
 /**
diff --git a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/_components/Entity/PersonRenderBox.vue b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/_components/Entity/PersonRenderBox.vue
index ffb9ef3d4..ab7074ffc 100644
--- a/src/Bundle/ChillPersonBundle/Resources/public/vuejs/_components/Entity/PersonRenderBox.vue
+++ b/src/Bundle/ChillPersonBundle/Resources/public/vuejs/_components/Entity/PersonRenderBox.vue
@@ -192,6 +192,7 @@ export default {
             return `/fr/person/${this.person.id}/general`;
         },
         getAge: function() {
+            // TODO only one abstract function
             if(this.person.birthdate && !this.person.deathdate){
                 const birthday = new Date(this.person.birthdate.datetime)
                 const now = new Date()
diff --git a/src/Bundle/ChillPersonBundle/Resources/views/Household/relationship.html.twig b/src/Bundle/ChillPersonBundle/Resources/views/Household/relationship.html.twig
index 56fcce85c..acaeebb96 100644
--- a/src/Bundle/ChillPersonBundle/Resources/views/Household/relationship.html.twig
+++ b/src/Bundle/ChillPersonBundle/Resources/views/Household/relationship.html.twig
@@ -17,7 +17,8 @@
 
     <div id="relationship-graph"
         style="margin-top: -3rem"
-        data-persons="{{ persons|e('html_attr') }}">
+        data-persons="{{ persons|e('html_attr') }}"
+        data-household-id="{{ household.id|e('html_attr') }}">
     </div>
 </div>
 {% endblock %}