Cathy King wrote on Tuesday, January 07, 2003 4:53 AM Subject: Chart products
> Could you > recommend some chart products to me? I really appreciated your help and > suggestions. Hi Cathy, to generate graphics or charts, you can use svg within a customtag in your jsp (with no additional cost!). A webapp including samples and sources you can find here: http://www.p8serv.de/werkstatt/download/BatikLib.zip It is a basic jsp1.2 custom-tag. To run this, you need Batik in your classpath. You find Batik here: http://xml.apache.org/batik Using the svg-tag, a simple ( but ugly ) dynamic barchart could be this: -------------- <forexample.jsp> -------------- <%@ taglib uri="/WEB-INF/tld/p8-batik.tld" prefix="p8"%> <% int rate1=(int)(Math.random()*100); int rate2=(int)(Math.random()*100); int rate3=(int)(Math.random()*100); //=Integer.parseInt(request.getParameter("count3")); String bgcolor="rgb(128,128,128)"; //=session.getAttribute("bgcolor").toString(); String color1="rgb(255,0,0)"; String color2="rgb(0,255,0)"; String color3="rgb(0,0,255)"; %> <p8:batik format="png" imgname="example1" width="175" height="200" align="left" hspace="0" vspace="0"> <svg width="175" height="200"> <rect x="0" y="0" width="175" height="200" fill="<%=bgcolor%>"/> <rect x="25px" y="25px" width="25px" height="<%=rate1%>" fill="<%=color1%>"/> <rect x="75px" y="25px" width="25px" height="<%=rate2%>" fill="<%=color2%>"/> <rect x="125px" y="25px" width="25px" height="<%=rate3%>" fill="<%=color3%>"/> </svg> </p8:batik> -------------- </forexample.jsp> -------------- Regards Stefan
