108 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			108 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 
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| /*
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| * Licensed to the Apache Software Foundation (ASF) under one
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| * or more contributor license agreements.  See the NOTICE file
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| * distributed with this work for additional information
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| * regarding copyright ownership.  The ASF licenses this file
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| * to you under the Apache License, Version 2.0 (the
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| * "License"); you may not use this file except in compliance
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| * with the License.  You may obtain a copy of the License at
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| *
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| *   http://www.apache.org/licenses/LICENSE-2.0
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| *
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| * Unless required by applicable law or agreed to in writing,
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| * software distributed under the License is distributed on an
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| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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| * KIND, either express or implied.  See the License for the
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| * specific language governing permissions and limitations
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| * under the License.
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| */
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| 
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| var View = require("../../coord/View");
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| 
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| var _layout = require("../../util/layout");
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| 
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| var getLayoutRect = _layout.getLayoutRect;
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| 
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| var bbox = require("zrender/lib/core/bbox");
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| 
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| /*
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| * Licensed to the Apache Software Foundation (ASF) under one
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| * or more contributor license agreements.  See the NOTICE file
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| * distributed with this work for additional information
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| * regarding copyright ownership.  The ASF licenses this file
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| * to you under the Apache License, Version 2.0 (the
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| * "License"); you may not use this file except in compliance
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| * with the License.  You may obtain a copy of the License at
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| *
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| *   http://www.apache.org/licenses/LICENSE-2.0
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| *
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| * Unless required by applicable law or agreed to in writing,
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| * software distributed under the License is distributed on an
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| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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| * KIND, either express or implied.  See the License for the
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| * specific language governing permissions and limitations
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| * under the License.
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| */
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| // FIXME Where to create the simple view coordinate system
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| function getViewRect(seriesModel, api, aspect) {
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|   var option = seriesModel.getBoxLayoutParams();
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|   option.aspect = aspect;
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|   return getLayoutRect(option, {
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|     width: api.getWidth(),
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|     height: api.getHeight()
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|   });
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| }
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| 
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| function _default(ecModel, api) {
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|   var viewList = [];
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|   ecModel.eachSeriesByType('graph', function (seriesModel) {
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|     var coordSysType = seriesModel.get('coordinateSystem');
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| 
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|     if (!coordSysType || coordSysType === 'view') {
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|       var data = seriesModel.getData();
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|       var positions = data.mapArray(function (idx) {
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|         var itemModel = data.getItemModel(idx);
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|         return [+itemModel.get('x'), +itemModel.get('y')];
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|       });
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|       var min = [];
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|       var max = [];
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|       bbox.fromPoints(positions, min, max); // If width or height is 0
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| 
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|       if (max[0] - min[0] === 0) {
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|         max[0] += 1;
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|         min[0] -= 1;
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|       }
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| 
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|       if (max[1] - min[1] === 0) {
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|         max[1] += 1;
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|         min[1] -= 1;
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|       }
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| 
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|       var aspect = (max[0] - min[0]) / (max[1] - min[1]); // FIXME If get view rect after data processed?
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| 
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|       var viewRect = getViewRect(seriesModel, api, aspect); // Position may be NaN, use view rect instead
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| 
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|       if (isNaN(aspect)) {
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|         min = [viewRect.x, viewRect.y];
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|         max = [viewRect.x + viewRect.width, viewRect.y + viewRect.height];
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|       }
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| 
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|       var bbWidth = max[0] - min[0];
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|       var bbHeight = max[1] - min[1];
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|       var viewWidth = viewRect.width;
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|       var viewHeight = viewRect.height;
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|       var viewCoordSys = seriesModel.coordinateSystem = new View();
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|       viewCoordSys.zoomLimit = seriesModel.get('scaleLimit');
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|       viewCoordSys.setBoundingRect(min[0], min[1], bbWidth, bbHeight);
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|       viewCoordSys.setViewRect(viewRect.x, viewRect.y, viewWidth, viewHeight); // Update roam info
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| 
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|       viewCoordSys.setCenter(seriesModel.get('center'));
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|       viewCoordSys.setZoom(seriesModel.get('zoom'));
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|       viewList.push(viewCoordSys);
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|     }
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|   });
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|   return viewList;
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| }
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| 
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| module.exports = _default; | 
