dojox.gfx | 易学教程

Remove all the children DOM elements in div

阅读更多关于 Remove all the children DOM elements in div

问题 I have the following dojo codes to create a surface graphics element under a div: .... <script type=text/javascript> .... function drawRec(){ var node = dojo.byId("surface"); // remove all the children graphics var surface = dojox.gfx.createSurface(node, 600, 600); surface.createLine({ x1 : 0, y1 : 0, x2 : 600, y2 : 600 }).setStroke("black"); } .... </script> .... <body> <div id="surface"></div> .... drawRec() will draw a rectangle graphics first time. If I call this function again in an

add text to dojo chart (in this case scatter chart)

阅读更多关于 add text to dojo chart (in this case scatter chart)

问题 I want to add custom text to my (scatter) chart. I could netiher find an example nor any other appropriate dojo function for that. By now I have a tooltip for each point of my scatter chart, but I'd rather like to have a label for it. Any idea? Thanks! 回答1: You need to upgrade to dojo 1.9.7 at least to use this answer: First of all, You have to set a new option: "labelStyle: 'outside'". This position the text uppon the circle in case the label width is larger than than the circle. The next

export/convert chart from dojo charting to image

阅读更多关于 export/convert chart from dojo charting to image

问题 can anyone tell me if it is possible to convert a dojo charting object into an îmage file? I need this as I want to export an Excel file from a webpage containing some data and the representing chart. The only thing I found is http://dojotoolkit.org/reference-guide/dojox/gfx/utils/toSvg.html#dojox-gfx-utils-tosvg but I do not really know how to proceed with the output of that function. Thanks you! 回答1: What you found will work as long as you know what to do with SVG (e.g., rasterize it using

Remove all the children DOM elements in div

阅读更多关于 Remove all the children DOM elements in div

I have the following dojo codes to create a surface graphics element under a div: .... <script type=text/javascript> .... function drawRec(){ var node = dojo.byId("surface"); // remove all the children graphics var surface = dojox.gfx.createSurface(node, 600, 600); surface.createLine({ x1 : 0, y1 : 0, x2 : 600, y2 : 600 }).setStroke("black"); } .... </script> .... <body> <div id="surface"></div> .... drawRec() will draw a rectangle graphics first time. If I call this function again in an anchor href like this: <a href="javascript:drawRec();">...</a> it will draw another graphics again. What I