优化完成（前置图片旋转处理）

collect_information/src/store/daily.ts

@@ -5,11 +5,6 @@ export const useDailyStore = defineStore('daily', {
     userdailyinspection: [],
     base64_1: '',
     base64_2: '',
-    direction: true,
-    direction_1: true,
-    direction_2: true,
-
-
   }),
   actions: {
     dailyinspectionList(data) {
@@ -25,18 +20,7 @@ export const useDailyStore = defineStore('daily', {
       this.base64_1 = ''
       this.base64_2 = ''
     },
-    changeDirection() {
+
-      this.direction = !this.direction
-    },
-    changeDirection__(data) {
-      this.direction = data
-    },
-    changeDirection1(data) {
-      this.direction_1 = data
-    },
-    changeDirection2(data) {
-      this.direction_2 = data
-    }
   },
   getters: {
     getdailyinspection(state) {
@@ -48,14 +32,6 @@ export const useDailyStore = defineStore('daily', {
     get_base64_2(state) {
       return state.base64_2
     },
-    getDirection(state) {
+
-      return state.direction
-    },
-    getDirection1(state) {
-      return state.direction_1
-    },
-    getDirection2(state) {
-      return state.direction_2
-    }
   }
 })

collect_information/src/subPages/police/dailyInspection/dailyInspection.vue

@@ -46,8 +46,8 @@
           </navigator>
         </nut-form-item>
         <view style="display: flex; justify-content: center">
-          <!-- :class="direction1 ? 'sigh_btns' : 'sigh_btns_noRotate'" -->
+
-          <image v-if="_form.assessmentUserSignature" :src="_form.assessmentUserSignature" mode="heightFix" style="height: 300rpx"></image>
+          <image v-if="_form.assessmentUserSignature" :src="_form.assessmentUserSignature" mode="aspectFit" style="height: 300rpx"></image>
         </view>
 
         <nut-form-item label="被考评学校签名:">
@@ -56,7 +56,7 @@
           </navigator>
         </nut-form-item>
         <view style="display: flex; justify-content: center">
-          <!--  :class="direction2 ? 'sigh_btns' : 'sigh_btns_noRotate'" -->
+
           <image v-if="_form.byAssessmentEnterprisesUnitUserSignature" :src="_form.byAssessmentEnterprisesUnitUserSignature" mode="heightFix" style="height: 300rpx"></image>
         </view>
       </nut-form>
@@ -79,9 +79,6 @@ const store = useDailyStore()
 const daily = computed(() => store.getdailyinspection)
 const base64_1 = computed(() => store.get_base64_1)
 const base64_2 = computed(() => store.get_base64_2)
-// const direction = computed(() => store.getDirection)
-const direction1 = computed(() => store.getDirection1)
-const direction2 = computed(() => store.getDirection2)
 
 const currentCkProjectId = ref('')
 const submitData = ref<Item[]>([])

collect_information/src/subPages/select/signature/signature.vue

@@ -26,9 +26,7 @@ import icon from '@/assets/images/rotate1.png'
 const _index = ref(0)
 import { useDailyStore } from '@/store/daily'
 const store = useDailyStore()
-const direction = computed(() => store.getDirection)
+
-const direction1 = computed(() => store.getDirection1)
-const direction2 = computed(() => store.getDirection2)
 
 const width = ref(0)
 const height = ref(300)
@@ -42,11 +40,7 @@ useLoad((options) => {
   Taro.setNavigationBarTitle({
     title: options.name,
   })
-  // if (_index.value === 1) {
+
-  //   store.changeDirection__(direction1.value)
-  // } else {
-  //   store.changeDirection__(direction2.value)
-  // }
 })
 const ctx = ref(null)
 onMounted(() => {
@@ -116,14 +110,30 @@ const handleConfirm = () => {
 
       const tempPath = res.tempFilePath
       const ctx = Taro.createCanvasContext('camCacnvs', that)
+      var targetWidth
+      var targetHeight
+      // 前置图片旋转处理 ___________________________________________________________________
+      if (direction.value) {
+        targetWidth = height.value * 0.5
+        targetHeight = width.value * 0.5
+        // 计算旋转后的外接矩形尺寸
+        const angle = (270 * Math.PI) / 180 // 逆时针旋转 270 度
+        const rotatedWidth = Math.abs(width.value * Math.cos(angle)) + Math.abs(height.value * Math.sin(angle))
+        const rotatedHeight = Math.abs(height.value * Math.cos(angle)) + Math.abs(width.value * Math.sin(angle))
+        // 计算平移量
+        const offsetX = 0 // 如果不需要水平偏移，则为 0
+        const offsetY = rotatedHeight - targetHeight // 计算 y 轴的平移量
+        // 将画布原点平移到适当位置
+        ctx.translate(offsetX, offsetY)
+        // 旋转画布
+        ctx.rotate(angle)
+        ctx.drawImage(tempPath, 0, 0, targetHeight, targetWidth)
+      } else {
+        targetWidth = width.value * 0.5
+        targetHeight = height.value * 0.5
+        ctx.drawImage(tempPath, 0, 0, targetWidth, targetHeight)
+      }
 
-      // 调整缩放比例，例如压缩到 50%
-      const targetWidth = width.value * 0.5
-      const targetHeight = height.value * 0.5
-
-      ctx.translate(0, targetWidth)
-      ctx.rotate((-90 * Math.PI) / 180)
-      ctx.drawImage(tempPath, 0, 0, targetWidth, targetHeight)
       ctx.draw(false, () => {
         Taro.canvasToTempFilePath({
           canvasId: 'camCacnvs',
@@ -157,17 +167,10 @@ const handleConfirm = () => {
  * @direction false 竖屏，true 横屏
  */
 
-// const direction = ref(true)
+const direction = ref(true)
 const changeDirection = () => {
-  // direction.value = !direction.value
+  direction.value = !direction.value
-  store.changeDirection()
   Taro.vibrateShort({ type: 'medium' }).then()
 }
-useUnload(() => {
+
-  if (_index.value === 1) {
-    store.changeDirection1(direction.value)
-  } else {
-    store.changeDirection2(direction.value)
-  }
-})
 </script>