再次回忆了一下WebChart中的画图功能, 画出了一个子图, 这种方式可能更适合于Load及活动会话数的显示.

    在WebChart中多了几行子图的定义.

WEBCHART.TYPE_1=AREA
WEBCHART.SUBTYPE_1=LINE_SOLID
WEBCHART.XSLDOC=xsl/defchart.xsl
WEBCHART.BACKCOLOR_1=white
WEBCHART.EDGECOLOR_1=white
WEBCHART.YMAX_1=20|50|5
WEBCHART.XCOL_1=DAY
WEBCHART.YCOL_1=VAL1
WEBCHART.SUBCHARTCOL_1=VAL2
WEBCHART.SUBCHARTHEIGHT_1=0.3
WEBCHART.SUBCHARTTYPE_1=LINE
WEBCHART.SUBCHARTSUBTYPE_1=LIND_SOLID
WEBCHART.SUBCHARTSUBTYPE2_1=MARKER_NONE
WEBCHART.WIDTH_1=500
WEBCHART.HEIGHT_1=250
WEBCHART.QUERY_1= SELECT SYSDATE + rownum/1440 DAY, \
    DBMS_RANDOM.VALUE(25,40) VAL1, \
    DECODE(TRUNC(ROWNUM/20), 0, NULL,4, NULL , \
    DBMS_RANDOM.VALUE(5,20)) VAL2 \
  FROM ALL_TABLES WHERE ROWNUM < 100 order by 1

    脱离画图的技术细节, 将WebChart打造成一个方便的Web画图平台.