diff --git a/components/calcModels.vue b/components/calcModels.vue
index 81218b5..80c9b16 100644
--- a/components/calcModels.vue
+++ b/components/calcModels.vue
@@ -12,12 +12,12 @@ const max_size = use_max_size()
 
 const controlsState = reactive({
     distance: section_count.value,
-    minDistance: 10,
-    maxDistance: 10,
+    minDistance: 20,
+    maxDistance: 20,
     position: { x: 0, y: 0, z: 0 },
     enablePan: false,
     minPolarAngle: degToRad(30),
-    maxPolarAngle: degToRad(90),
+    maxPolarAngle: degToRad(80),
 })
 const cameraStat = reactive({
     position: [-4, 2, 8],
@@ -53,7 +53,7 @@ watch([section_count, extra_section], () => {
     let v = (section_count.value + ~~(!!extra_section.value)) * 2
     if (v < controlsState.minDistance) v = controlsState.minDistance;
     if (v > controlsState.maxDistance) v = controlsState.maxDistance;
-    (camera.value as any).position.normalize().multiplyScalar(v)
+    // (camera.value as any).position.normalize().multiplyScalar(v)
 })
 </script>
 <template>
@@ -68,12 +68,12 @@ watch([section_count, extra_section], () => {
             <TresCanvas clear-color="#ccc">
                 <TresPerspectiveCamera v-bind="cameraStat" ref="camera" />
                 <OrbitControls v-bind="controlsState" make-default />
-                <TresGroup :position-x="Math.min(section_count, max_size) * fence_section * -1" :position-y="-3">
+                <TresGroup :position-x="Math.min(section_count, max_size) * fence_section * -1">
                     <Suspense>
                         <ModelParametric />
                     </Suspense>
                 </TresGroup>
-                <TresMesh receive-shadow :position-y="-3.65" name="ground">
+                <TresMesh receive-shadow name="ground">
                     <TresCircleGeometry :args="[50, 32]" :rotate-x="-Math.PI * 0.5" />
                     <TresShadowMaterial :opacity="0.2" />
                 </TresMesh>
diff --git a/components/model/fence.vue b/components/model/fence.vue
index f17004f..2729f5e 100644
--- a/components/model/fence.vue
+++ b/components/model/fence.vue
@@ -87,26 +87,6 @@ watch([section_count, fence_section, extra_section], () => {
         pillar_two_pos.value = fence_section.value * 0.5 + pillar_size + bSize - 0.01
         // translate_to_section.value = make_translate_to_section()
     }
-
-    if ((section_count.value + ~~(!!extra_section.value)) > 3) {
-        const total = (section_count.value + ~~(!!extra_section.value))
-        const size = Math.ceil(total / 4)
-        console.log({ total, size, index: props.index });
-        switch(Math.ceil(props.index / size)) {
-            case 1:
-                console.log('1')
-                break;
-            case 2:
-                console.log('2')
-                break;
-            case 3:
-                console.log('3')
-                break;
-            case 4:
-                console.log('4')
-                break;
-        }
-    }
 })
 </script>
 <template>
diff --git a/components/model/line.vue b/components/model/line.vue
new file mode 100644
index 0000000..da63898
--- /dev/null
+++ b/components/model/line.vue
@@ -0,0 +1,59 @@
+<script setup lang="ts">
+import { Box3, Vector3 } from 'three';
+import { degToRad } from 'three/src/math/MathUtils.js';
+
+const props = defineProps(['number', 'count', 'models'])
+const rotate = () => {
+    switch (props.number) {
+        case 1:
+            return degToRad(0)
+        case 2:
+            return degToRad(90)
+        case 3:
+            return degToRad(180)
+        case 4:
+            return degToRad(270)
+    }
+}
+const { seekByName } = useSeek()
+const { scene } = useTresContext()
+
+const section_count = use_section_count()
+const extra_section = use_extra_section()
+
+const size = ref(new Vector3())
+const total = ref((section_count.value + ~~(!!extra_section.value)))
+
+const count_pos = () => {
+    console.log('line count pos')
+    total.value = (section_count.value + ~~(!!extra_section.value))
+
+    const line = seekByName(scene.value, `line_${props.number}`)
+    if (line && line.children.length) {
+        const fence = line.children[0];
+        if (fence) {
+            const box = new Box3();
+            fence.children.forEach(element => {
+                box.expandByObject(element);
+            });
+            box.getSize(size.value)
+        }
+        line.updateMatrixWorld()
+    }
+}
+onMounted(() => {
+    count_pos()
+})
+watch(() => [props.count, section_count.value, extra_section.value],
+    count_pos
+)
+</script>
+<template>
+    <TresGroup :name="`line_${props.number}`">
+        <template v-for="i in props.count">
+            <template v-if="(i + (props.number - 1) * props.count) <= total" :key="(i + (props.number - 1) * props.count)">
+                <ModelFence :index="i + (props.number - 1) * props.count" :models="props.models" />
+            </template>
+        </template>
+    </TresGroup>
+</template>
\ No newline at end of file
diff --git a/components/model/parametric.vue b/components/model/parametric.vue
index 4a8db9f..9bbfa5b 100644
--- a/components/model/parametric.vue
+++ b/components/model/parametric.vue
@@ -12,6 +12,7 @@ import { GainMapLoader, } from '@monogrid/gainmap-js'
 //@ts-ignore
 import { useGLTF, } from '@tresjs/cientos'
 import { getColorHexFromRal, type ralTypes } from '../ral';
+import { degToRad, radToDeg } from 'three/src/math/MathUtils.js';
 
 const pillar_color = use_pillar_color()
 const lamelle_color = use_lamelle_color()
@@ -91,12 +92,39 @@ watch(pillar_color, () => {
         set_material(element, getColorHexFromRal(pillar_color.value))
     })
 })
-watch([section_count, extra_section], () => {
+
+const total = ref((section_count.value + ~~(!!extra_section.value)))
+const size = ref(Math.ceil(total.value / 4))
+const count = ref((total.value >= 4) ? size.value : total.value)
+
+watch(() => [section_count.value, extra_section.value], () => {
+    console.log('parametric line clear')
+    total.value = (section_count.value + ~~(!!extra_section.value))
+    size.value = Math.ceil(total.value / 4);
+    count.value = (total.value >= 4) ? size.value : total.value;
+
+    const lines_count = (total.value >= 4) ? 4 : 1
     const base = seek(scene.value, 'name', 'base')
-    const n = (section_count.value as number) + ~~(!!extra_section.value)
-    if (base?.children && n < base?.children.length) {
-        base.children = [...base?.children.slice(0, n)]
+    if (base?.children && base.children.length !== lines_count) {
+        base.children = [...base?.children.slice(0, lines_count)]
     }
+
+    const lines = seekAll(scene.value, 'name', 'line')
+    lines.forEach(line => {
+        let n = size.value
+        if (lines_count == 1) {
+            n = total.value
+        }
+        if (line.name.endsWith('_4')) {
+            n = total.value - size.value * 3
+            if (n < 0) {
+                n = 0
+            }
+        }
+        if (line?.children && n < line?.children.length) {
+            line.children = [...line?.children.slice(0, n)]
+        }
+    });
 })
 
 watch(lamelle_count, () => {
@@ -104,30 +132,12 @@ watch(lamelle_count, () => {
         (el: Ref) => { set_material(el.value, getColorHexFromRal(pillar_color.value), lamelle_count.value) });
 })
 
-onMounted(async () => {
-    const loader = new GainMapLoader(renderer.value)
-    const result = await loader.loadAsync([
-        'hdrmaps/hdr.webp',
-        'hdrmaps/hdr-gainmap.webp',
-        'hdrmaps/hdr.json',
-    ])
-    if (renderer.value && camera.value) {
-        renderer.value.render(scene.value, camera.value)
-    }
-    // scene.value.environment = result.renderTarget.texture
-    // scene.value.background = result.renderTarget.texture
-    // scene.value.background.mapping = EquirectangularReflectionMapping
-    // scene.value.backgroundRotation = new Euler(0, 10, 0)
-    // scene.value.backgroundIntensity = 1.5
-    // scene.value.backgroundBlurriness = 0.06
-    result.renderTarget.texture.dispose();
-})
-
 </script>
 <template>
     <TresGroup name="base">
-        <template v-for="i in Math.min((section_count + ~~(!!extra_section)), max_size)">
-            <ModelFence :index="i" :models="{ top, fence, fence_top, fence_bottom, fence_inner, fastening, lamelle }" />
+        <template v-for="line in (total >= 4) ? 4 : 1" :key="count">
+            <ModelLine :models="{ top, fence, fence_top, fence_bottom, fence_inner, fastening, lamelle }" :number="line"
+                :count="count" :position-z="line * 2" />
         </template>
     </TresGroup>
 </template>
\ No newline at end of file