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Axes and values Label format 
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New pChart user
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Joined: Wed Sep 07, 2011 3:24 pm
Posts: 3
Post Axes and values Label format
hi,

I want to create a "Age Pyramid" with the number of Male / female by ages range.
I use the drawStackedBarChart method.
For having a Female and a Male part, I used negative number for female and poisitive number of male.
I want have only positive number for the label of axes and the lbale value in the graph.
Is it possible to use the absolute values or a "picture" number format without the minus sign...
Or is there a "Pyramid Graph" format in pChart.

Thank you for your help,


Wed Sep 07, 2011 3:32 pm
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Joined: Thu Dec 02, 2010 2:31 pm
Posts: 409
Location: France
Post Re: Axes and values Label format
Do you mean something like this?


Attachments:
example_drawStackedBarChart_pyramid.png
example_drawStackedBarChart_pyramid.png [ 12.68 KiB | Viewed 12590 times ]
Wed Sep 07, 2011 3:51 pm
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Joined: Wed Sep 07, 2011 3:24 pm
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Post Re: Axes and values Label format
Yes, It's cool...
Plus the label value in the bar...

How do you do this...


Thu Sep 08, 2011 6:23 am
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Joined: Thu Dec 02, 2010 2:31 pm
Posts: 409
Location: France
Post Re: Axes and values Label format
This code is using the AXIS_FORMAT_CUSTOM method that has been added in the 2.1.3 sub version. If you want it just drop me a private message with your email address and I'll send it to you.

JD.

Code:
/* pChart library inclusions */
include("../class/pData.class.php");
include("../class/pDraw.class.php");
include("../class/pImage.class.php");

/* Create and populate the pData object */
$MyData = new pData(); 
$MyData->addPoints(array(20,40,65,100,70,55,40,22,12),"Male");
$MyData->addPoints(array(-22,-44,-61,-123,-74,-60,-52,-34,-21),"Female");
$MyData->setAxisName(0,"Community members");
$MyData->addPoints(array("0-10","10-20","20-30","30-40","40-50","50-60","60-70","70-80","80-90"),"Labels");
$MyData->setSerieDescription("Labels","Ages");
$MyData->setAbscissa("Labels");
$MyData->setAxisDisplay(0,AXIS_FORMAT_CUSTOM,"YAxisFormat");

/* Create the pChart object */
$myPicture = new pImage(700,230,$MyData);
$myPicture->drawGradientArea(0,0,700,230,DIRECTION_VERTICAL,array("StartR"=>240,"StartG"=>240,"StartB"=>240,"EndR"=>180,"EndG"=>180,"EndB"=>180,"Alpha"=>100));
$myPicture->drawGradientArea(0,0,700,230,DIRECTION_HORIZONTAL,array("StartR"=>240,"StartG"=>240,"StartB"=>240,"EndR"=>180,"EndG"=>180,"EndB"=>180,"Alpha"=>20));

/* Set the default font properties */
$myPicture->setFontProperties(array("FontName"=>"../fonts/pf_arma_five.ttf","FontSize"=>6));

/* Draw the scale and the chart */
$myPicture->setGraphArea(60,20,680,190);
$myPicture->drawScale(array("DrawSubTicks"=>TRUE,"Mode"=>SCALE_MODE_ADDALL));
$myPicture->setShadow(FALSE);
$myPicture->drawStackedBarChart(array("DisplayValues"=>TRUE,"DisplayColor"=>DISPLAY_AUTO,"Gradient"=>TRUE,"Surrounding"=>-20,"InnerSurrounding"=>20));

/* Write the chart legend */
$myPicture->drawLegend(600,210,array("Style"=>LEGEND_NOBORDER,"Mode"=>LEGEND_HORIZONTAL));

/* Render the picture (choose the best way) */
$myPicture->autoOutput("pictures/example.drawStackedBarChart.pyramid.png");

function YAxisFormat($Value) { return(abs($Value)); }


Attachments:
example_drawStackedBarChart_pyramidCAKRSQTI.png
example_drawStackedBarChart_pyramidCAKRSQTI.png [ 14.8 KiB | Viewed 12581 times ]
example_drawStackedBarChart_pyramid.png
example_drawStackedBarChart_pyramid.png [ 19 KiB | Viewed 12581 times ]
Thu Sep 08, 2011 7:05 am
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Joined: Wed Sep 07, 2011 3:24 pm
Posts: 3
Post Re: Axes and values Label format
Thank you,
It's great...
I will analyze your code...
Very Happy to work with the pChart Library..


Thu Sep 08, 2011 10:56 am
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Joined: Sat Sep 03, 2011 10:13 am
Posts: 5
Post Re: Axes and values Label format
Just wanted to add a feature request to implement a label function, but as I see here you already implemented it. Great! Looking forward to the next subrelease.


Thu Sep 08, 2011 12:35 pm
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Joined: Wed Aug 24, 2011 6:39 pm
Posts: 1
Post Re: Axes and values Label format
How does one reverse the plotted age pyramid. There must be a simple answer to it, I just don't get it... Any help please...

Btw: Thanks for the library, I really love it...


Tue Oct 18, 2011 12:25 am
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Joined: Mon Jan 30, 2012 2:23 pm
Posts: 5
Post Re: Axes and values Label format
This should be added to the example


Wed Feb 01, 2012 2:57 pm
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