23 lines
3.6 KiB
JavaScript
23 lines
3.6 KiB
JavaScript
function downV3(event,g,context){context.initializeMouseDown(event,g,context);if(event.altKey||event.shiftKey){Dygraph.startZoom(event,g,context);}else{Dygraph.startPan(event,g,context);}}
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function moveV3(event,g,context){if(context.isPanning){Dygraph.movePan(event,g,context);}else if(context.isZooming){Dygraph.moveZoom(event,g,context);}}
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function upV3(event,g,context){if(context.isPanning){Dygraph.endPan(event,g,context);}else if(context.isZooming){Dygraph.endZoom(event,g,context);}}
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function offsetToPercentage(g,offsetX,offsetY){var xOffset=g.toDomCoords(g.xAxisRange()[0],null)[0];var yar0=g.yAxisRange(0);var yOffset=g.toDomCoords(null,yar0[1])[1];var x=offsetX- xOffset;var y=offsetY- yOffset;var w=g.toDomCoords(g.xAxisRange()[1],null)[0]- xOffset;var h=g.toDomCoords(null,yar0[0])[1]- yOffset;var xPct=w==0?0:(x/w);var yPct=h==0?0:(y/h);return[xPct,(1-yPct)];}
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function dblClickV3(event,g,context){if(!(event.offsetX&&event.offsetY)){event.offsetX=event.layerX- event.target.offsetLeft;event.offsetY=event.layerY- event.target.offsetTop;}
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var percentages=offsetToPercentage(g,event.offsetX,event.offsetY);var xPct=percentages[0];var yPct=percentages[1];if(event.ctrlKey){zoom(g,-.25,xPct,yPct);}else{zoom(g,+.2,xPct,yPct);}}
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var lastClickedGraph=null;function clickV3(event,g,context){lastClickedGraph=g;Dygraph.cancelEvent(event);}
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function scrollV3(event,g,context){if(lastClickedGraph!=g){return;}
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var normal=event.detail?event.detail*-1:event.wheelDelta/40;var percentage=normal/50;if(!(event.offsetX&&event.offsetY)){event.offsetX=event.layerX- event.target.offsetLeft;event.offsetY=event.layerY- event.target.offsetTop;}
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var percentages=offsetToPercentage(g,event.offsetX,event.offsetY);var xPct=percentages[0];var yPct=percentages[1];zoom(g,percentage,xPct,yPct);Dygraph.cancelEvent(event);}
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function zoom(g,zoomInPercentage,xBias,yBias){xBias=xBias||0.5;yBias=yBias||0.5;function adjustAxis(axis,zoomInPercentage,bias){var delta=axis[1]- axis[0];var increment=delta*zoomInPercentage;var foo=[increment*bias,increment*(1-bias)];return[axis[0]+ foo[0],axis[1]- foo[1]];}
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var yAxes=g.yAxisRanges();var newYAxes=[];for(var i=0;i<yAxes.length;i++){newYAxes[i]=adjustAxis(yAxes[i],zoomInPercentage,yBias);}
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g.updateOptions({dateWindow:adjustAxis(g.xAxisRange(),zoomInPercentage,xBias),valueRange:newYAxes[0]});}
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var v4Active=false;var v4Canvas=null;function downV4(event,g,context){context.initializeMouseDown(event,g,context);v4Active=true;moveV4(event,g,context);}
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var processed=[];function moveV4(event,g,context){var RANGE=7;if(v4Active){var canvasx=Dygraph.pageX(event)- Dygraph.findPosX(g.graphDiv);var canvasy=Dygraph.pageY(event)- Dygraph.findPosY(g.graphDiv);var rows=g.numRows();for(var row=0;row<rows;row++){var date=g.getValue(row,0);var x=g.toDomCoords(date,null)[0];var diff=Math.abs(canvasx- x);if(diff<RANGE){for(var col=1;col<3;col++){var vals=g.getValue(row,col);if(vals==null){continue;}
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var val=vals[0];var y=g.toDomCoords(null,val)[1];var diff2=Math.abs(canvasy- y);if(diff2<RANGE){var found=false;for(var i in processed){var stored=processed[i];if(stored[0]==row&&stored[1]==col){found=true;break;}}
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if(!found){processed.push([row,col]);drawV4(x,y);}
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return;}}}}}}
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function upV4(event,g,context){if(v4Active){v4Active=false;}}
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function dblClickV4(event,g,context){restorePositioning(g);}
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function drawV4(x,y){var ctx=v4Canvas;ctx.strokeStyle="#000000";ctx.fillStyle="#FFFF00";ctx.beginPath();ctx.arc(x,y,5,0,Math.PI*2,true);ctx.closePath();ctx.stroke();ctx.fill();}
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function captureCanvas(canvas,area,g){v4Canvas=canvas;}
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function restorePositioning(g){g.updateOptions({dateWindow:null,valueRange:null});} |