public class NFStockChartApp extends Applet
This class supports the generation of stock charts showing hi/lo/open/close values for a given day/time. In addition, the chart can display a set of Bar and/or XY line sets, with optional symbols, lines and area fills.
The Stock Chart accepts all of the same display parameters found in the NFComboChartApp applet. The user need only specify Y values for any barsets, while specifying (x,y) coordinates for each line dataset.
In all cases, the user can specify the specific axes to be used for a given stock, bar or line set. That is, for each data set, the user can specify either the bottom or top, and left or right axis to be used for data mapping purposes. This allows the generation of charts in which the line set values are either consistent with the bar values (such as min/max line sets) or are best drawn using their own coordinate systems (such as a plot of trading volume vs. stock value.)
The following standard parameters are supported by this chart:
Background
Header HeaderBox Footer FooterBox LeftTitle LeftTitleBox RightTitle RightTitleBox
DwellLabel DwellBox ActiveClicks ActiveLabels[1-50]
Legend LegendBox LegendItems
TopAxis LeftAxis RightAxis BottomAxis
Grid GridLine GridAxis
ColorTable
NoteSets NoteSets[1-20] NoteArrow NoteAxis NoteLabel NoteBox
Additionally, all of the Combo Chart parameters are supported by this chart, including:
GraphType GraphLayout
DataSets DataAxis DataSet[1-50]
BarLabels BarActiveLabels
StackLabel
LineSets LineAxis LineSet[1-50] LineLabels[1-50]
The following parameters are specifically supported by this chart:
StockSets = (Name1, Color1, Width1, TicLen1), (Name2, Color2,...);
Defines the display attributes for one or more stock data sets. The Name attribute is used if a legend is displayed.
The color attribute defines the bar color to be used for the vertical bar (hi/lo) and the horizontal ticks (open/close). A default color is taken from the ColorTable if the color attribute is set to "null".
The Width attribute defines the width of the vertical bar (hi/lo), while the TicLen attribute defines the length of the open/close tic marks. If TicLen is set to 0 then no tic marks will be displayed.
StockAxis = (XAxis1, YAxis1), (XAxis2, YAxis2), ...;
The XAxis and YAxis attributes define the specific axis to be used when mapping the X and Y values respectively. The XAxis attribute may be set to BOTTOM or TOP, while the YAxis may be set to LEFT or RIGHT.
StockData[1-50] = (stock tuple1), (stock tuple2),...;
Defines a list of stock values with the following attributes in each tuple:
hi - highest stock value (Number) lo - lowest stock value (Number) open - opening stock value (Number) close - closing stock value (Number)
If the <lo> value is not defined, then the <hi> value will be used. If the <open> or <close> values are not defined, then no tic mark will be drawn for that value.
StockLabels[1-50] = ("Label1", "URL1", "Target1"), ...;
This parameter can be used to override the default active labels generated for each data value and/or to specify a hyper-link to another document, in a given target window or frame.
The following HTML segment defines a Stock Chart containing one set of stock values, with a bar set showing the trading volume and a line set showing the S&P500. NOTE: All data sets use the same X-axis, but different Y-axes, depending on the data type.
<applet code=NFStockChartApp.class width=400 height=400> <param name=NFParamScript value = '
Background = (white);
Header = ("XYZ Stock \n(Last 10 Weeks)", white); HeaderBox = (darkGray, RECESS, 5);
Legend = ("", black, "TimesRoman", 12); LegendBox = (lightGray, SHADOW, 5);
BottomFormat = (INTEGER, "Week=%d"); BottomTics = ("ON", black, "TimesRoman", 12); BottomLabels = "May", "", "", "", "", "", "Jun", "", "", "", "", "Jul", "", "", "", "", "";
LeftTics = ("ON", blue, "TimesRoman", 12, 0); LeftColor = blue; LeftScale = (0, 75);
RightTics = ("ON", green, "TimesRoman", 12, 0); RightColor = green; RightScale = (0, 3000);
DwellLabel = ("ON", black, "Courier", 10); DwellBox = (yellow, SHADOW, 4);
StockSets = ("Value", blue, 2, 2); StockAxis = (BOTTOM, LEFT);
StockData1 = (47,33,35,33), (47,32,41,37), (49,43,46,48), (51,39,40,47), (60,40,46,53), (55,43,45,47), (54,33,40,51), (58,42,44,57), (54,38,43,52), (48,41,44,41);
DataSets = ("Volume", green); DataAxis = (TOP, RIGHT);
DataSet1 = 812, 520, 633, 913, 519, 562, 697, 763, 709, 528, 738;
LineSets = ("S&P500", red, NONE, 1, FILLED, SOLID, 1, red); LineAxis = (BOTTOM, LEFT);
LineSet1 = (0,35), (1,39), (2,37), (3,31), (4,31), (5,38), (6,39), (8,36), (9,38), (10,39), (11,39), (12,36), (13,40);
'> </applet>
Type | Name | Description | Default | ||||
public | NFStockChart | Underlying stock object | stock |