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c# - Usage of Server Side Controls in MVC Frame work -

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i using asp.net 4.0 , mvc 2.0 web application. project requiremrnt have use server side control in application not possibl in noraml case. ideally want use adrotator control , datalist control. i saw few samples , references in codepleax mvc controllib howwver found less useful. can tell how utilize theese controls in asp.net application along mvc. note: please provide functionalities related adrotator , datalist controls not equivalent functionalities thanks in advace. mvc pages not use normal .net solution makes use of normal .net components impossible. a normal .net page use event driven solution call different methods service side mvc use actions , view completly different way handle things. also, mvc not use viewstate normal .net controlls require. found article discussing mixing of normal .net , mvc.
3 comments

php - scatter chart formula -

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i trying create scatter chart on web page css , few dots images. have created design successfully, can't figure out how scatter chart works. can provide me idea how can arrange them? chart width 968 , height 432. chart

http://chart.apis.google.com/chart?cht=s&chd=t:12,16,16,24,26,28,41,51,66,68,13,45,81|16,14,22,34,22,31,31,48,71,64,15,38,84&chs=250x100&chl=hello|world

i cannot use want know how works

thanks help.

<?php $w = 968; $h = 432; $xmin = 0; $xmax = 968; $ymin = 10; $ymax = 100; $x = 10; $y = 10; $xc = 20; $yc = 20; $r = (20)/ 2;  $xc = $w * (($x - $xmin)/($xmax - $xmin)) - $r . "<br>"; $yc = $h * (($ymax - $y)/($ymax - $ymin)) -$r; $tr =''; $data = array("120|90","345|456","45|66","45|45"); foreach($data $value){     $new =  explode("|",$value);     $tr .='<a href="#" style="top:'.$new[0].'px; left:'.$new[1].'px;" class="dot"></a>'; } ?> <!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <title>untitled document</title>      <style type="text/css"> #most_engaged_graph{ width:968px; height:432px; background-color:#cccccc; } a.dot {  height:20px;  width:20px;  position:absolute;  background-color:#0033ff; } </style>   </head> <body> <div id="most_engaged_graph">  <?=$tr?>    </div> </body> </html>

well dot pitch 20px square, , need position them on graph bottom left corner origin (0,0).

you need know scale of axis, have not stated. decide how many pixels per distance upon axis.

then need convert position desire of each point p(x,y), position on screen. want centre pixel of .dot @ location.

as screen coordinate run top-left, not bottom-left, need reverse vertical pixels, maximum zero, , 0 (or full negative) height of graph, plus/minus half size of dot in both cases.

given:

  • w = graph width (px), h = graph height (px)
  • xmin = minimum x axis, xmax = maximum x axis
  • ymin = minimum y axis, ymax = maximum y axis
  • x = x value on graph (xmin <= x <= xmax), y = y value on graph (ymin <= y <= ymax)
  • xc = x-center of dot, yc = y-center of dot
  • r = dot radius = (dot width) / 2

then:

  • xc = w * [(x - xmin)/(xmax - xmin)], yc = h * [(ymax - y)/(ymax - ymin)]
  • left = xc - r, top = yc - r

untested, think right - might need adjustment. in particular, subtract 2r w , h if need dots appear within area (that applies whole of graph, axis et al).

example code:

<div id="most_engaged_graph">  <?php $datapoints = array(                     array('x' => 5, 'y' => 20),                     array('x' => 80, 'y' => 50),                     array('x' => 45, 'y' => 5),                     array('x' => 68, 'y' => 89),                     array('x' => 22, 'y' => 43)               );  foreach ($datapoints $cpoint) {     // assuming $w, $h, $xmin, $ymin, $xmax, $ymax, $r defined above     $xc = $w * (($cpoint['x'] - $xmin) / ($xmax - $xmin));     $yc = $h * (($ymax - $cpoint['y']) / ($ymax - $ymin));      $cleft = $xc - $r;     $ctop  = $yc - $r; ?>     <a href="#" style="top: <?php echo $ctop; ?>px; left: <?php echo $cleft; ?>px;" class="dot"></a> <?php } ?> </div>

jquery version demo: http://jsfiddle.net/75mz5/1/


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