ibms/src/components/data_admin/buildTask/draw/drawModel.vue

<template>
  <div :id="`drawFloor${id}`" class="drawFloor" v-loading="canvasLoading">
    <canvas :id="`floorCanvas${id}`" :width="cadWidth" :height="cadHeight" ref="canvas" tabindex="0"></canvas>
    <div class="operate" v-show="showTools">
      <canvasFun @fit="fit" @savePng="savePng" @saveSvg="saveSvg" @scale="scale" :config="config" ref="canvasFun"></canvasFun>
    </div>
  </div>
</template>

<script>
import { DivideFloorScene, FloorView } from "@saga-web/cad-engine/lib"
import { SColor, SPoint } from "@sybotan-web/draw/lib";
import canvasFun from "@/components/business_space/newGraphy/canvasFun"
import { floorQuery } from "@/api/scan/request";
export default {
  components: {
    canvasFun
  },
  data() {
    return {
      drawMainScene: null,
      view: null,
      dataKey: '',
      cadWidth: 800,
      cadHeight: 600,
      canvasLoading: false,
      modelId: '',
      FloorID: '',
      Outline: [],
      buttonContent: "",
      showTools: false,
      config: {
        isEdit: false
      }
    };
  },
  props: {
    isEdit: {
      default: false
    },
    id: {
      default: 0
    },
    dialog: {
      default: false
    },
    CurrentModelId: String
  },
  created() { },
  mounted() {
    this.cadWidth = document.getElementById(`drawFloor${this.id}`).offsetWidth;
    this.cadHeight = document.getElementById(`drawFloor${this.id}`).offsetHeight;
  },
  methods: {
    initGraphy(ModelId) {
      this.modelId = ModelId;
      this.clearGraphy()
      this.drawMainScene = new DivideFloorScene();
      this.canvasLoading = true;
      this.drawMainScene.getFloorData('/modelapi/base-graph/query', { ModelId: ModelId }).then(res => {
        console.log(this)
        this.getGraphtSuc(res);
      })
    },
    getFloorData() {
      let pa = {
        Filters: `FloorID='${this.FloorID}'`
      }
      floorQuery(pa, res => {
        let newArr = res.Content[0].Outline.map(t => {
          return new SPoint(t.X, t.Y);
        })
        this.drawMainScene.addSceneMark(newArr)
      })
    },
    getSelectedSpaces() {//获取选中区域
      if (this.view && this.view.scene) {
        let list = this.view.scene.getSelectedSpaces();
        if (list.length) {
          return list
        } else {
          return []
        }
      } else {
        return []
      }
    },
    // 清空平面图
    clearGraphy() {
      if (this.view) {
        this.view.scene = null;
        return
      }
      let id = `floorCanvas${this.id}`;
      this.view = new FloorView(id)
    },
    canvasClick(item, eventObj) {//点击平面图事件 
      this.$emit("changeButtonContent",this.drawMainScene.getSelectedSpaces().length?"通过模型空间创建":"通过模型创建") 
    },
    getGraphtSuc(res) {
      this.showTools = true;
      this.canvasLoading = false;
      if (res.Result == 'failure') {
        this.showTools = false;
        this.$message.warning(res.Message);
        return;
      }
      this.view.scene = this.drawMainScene;
      this.view.fitSceneToView();
      this.drawMainScene.click(this, this.canvasClick);

      if (this.$refs.canvasFun) {
        this.view.maxScale = this.view.scale * 10;
        this.view.minScale = this.view.scale;
        this.$refs.canvasFun.everyScale = this.view.scale;
      }
    },
    // canvas 获取焦点
    focus() {
      document.getElementById(`floorCanvas${this.id}`).focus()
    },
    // 工具栏操作
    // 适配底图到窗口
    fit() {
      this.view.fitSceneToView()
    },
    // 保存为png
    savePng() {
      this.view.saveImage(`${this.floor}.png`, 'png');
    },
    // 保存为svg
    saveSvg() {
      this.view.saveSceneSvg(`${this.floor}.svg`, 6400, 4800);
    },
    // 缩放
    scale(val) {
      if (!this.view) {
        return;
      }
      let scale = this.view.scale;
      this.view.scaleByPoint(val / scale, this.cadWidth / 2, this.cadHeight / 2);
    }
  },
  watch: {
    CurrentModelId: {
      handler(newName, oldName) {
        if (newName) {
          this.initGraphy(newName)
        }
      },
      immediate: true,
    },
    "view.scale": {
      handler(n) {
        if (this.$refs.canvasFun) {
          this.$refs.canvasFun.sliderVal = n * 10 / this.view.minScale;
        }
      }
    },
    "isEdit": {
      handler(n) {
        this.config.isEdit = n;
      }
    }
  }
};
</script>
<style scoped lang="less">
.drawFloor {
  width: 100%;
  height: 100%;
  position: relative;
  .operate {
    position: absolute;
    left: 50%;
    bottom: 20px;
    transform: translateX(-50%);
    z-index: 99;
  }
}
</style>