By Dominic Gélineau Peter Backx
«A photograph is worthy 1000 phrases» hasn't ever been truer than whilst representing huge units of knowledge. Bar charts, warmth maps, cartograms, and plenty of extra became vital instruments in functions and shows to fast supply perception into complex issues.
The «ActionScript Graphing Cookbook» indicates you ways so as to add your individual charts to any ActionScript application. The recipes provide step by step directions on easy methods to strategy the enter facts, tips on how to create a number of sorts of charts and the way to lead them to interactive for much more person engagement.
Starting with easy ActionScript wisdom, you are going to increase many differing kinds of charts.First find out how to import your facts, from Excel, internet providers and extra. subsequent approach the knowledge and make it prepared for graphical reveal. decide one of many many graph strategies on hand because the publication courses you thru ActionScript’s drawing services. And while you’re prepared for it, department out into 3D display.
What you'll study from this booklet :
• Import information from a variety of sources
• manage many of the visible parts of a graph
• Draw many varieties of charts, equivalent to bar, line and pie charts, meters and plenty of more
• Make graphs interactive with hover and zoom effects
• paintings with geographical information and maps
• Animate graphs with genuine time data
• express and have interaction with community displays
• observe 3 dimensional drawing and graphing
Read or Download ActionScript Graphing Cookbook PDF
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Extra resources for ActionScript Graphing Cookbook
So if you haven't written that yet, copy it from the provided sources. Next, create a Recipe4 class, just as we did in the previous recipes. How to do it... To create axes, we will add two methods to the Graph class. They are as follows: public function drawVerticalAxis(x:Number, y1:Number, y2:Number)public function drawHorizontalAxis(y: Number, x1:Number, x2:Number) Calling the methods will draw a straight line from (x,y1) to (x,y2) and (x1,y) to (x2,y), respectively. y); previousPoint = point; } } } } The result should be the same graph as before, but now with two lines forming an axis.
In the coming chapters, we'll see some uses for this approach, but if you have issues with performance, you can directly draw on the Recipe2 sprite and not instantiate new shapes for every point. There's more... Again, this basic program is very powerful. And with a few changes, it allows for lots of experimentation. Coordinate system Try to change the parameters of the createGraph method and see if you can predict the results. Typically, scientific graphs will have their origin (0,0) in the center of the graph.
ScaleY = (flipY ? -1 : 1) * scaleHeight; addChild(graph); } Now that we've got the hard part out of the way, let's make the drawPoint method a little more reusable. scaleX = (flipX ? scaleY = (flipY ? addChild(point); } } } This code also shows that the method can be reused to draw several different points. If everything went well, you should see three points along a diagonal, with the bottom-left point being a little farther away from the others. How it works... matrix); Note If you have issues viewing the trace statements output, it may be due to the Flash player you are using or the FlashDevelop configuration.
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