High-speed Charting Control--MFC绘制图表（折线图、饼图、柱形(5)

some requirement for a nice feature that could be useful for others, please let me know and I’ll add it to my wishlist. However, as I’m working on this control in my spare time, my time is rather limited.

Finally, if you liked this control, do not hesitate to drop me a word in the discussion forum or to rate the article, this is much appreciated. Thank you.

History

08/05/2006: Release of version 1.0 19/08/2006: Release of version 1.1

Bug fix in ScreenToValue function (CChartAxis) Bug fix in RemoveAllSeries function (CChartCtrl) Added support for manual zoom Added support for mouse panning

Ability to specify a tick increment on the axis Added support for resizing the control 09/04/2007: Release of version 1.2 GDI leak corrected

Invisible series are not taken in account for auto axis and legend (thanks to jerminator-jp) Ability to change the text color of the axis

Ability to change the color of the border of the drawing area Surface series added

16/02/2008: Release of version 1.3 Added date/time axis

Bug fix in how the logarithmic labels are displayed (trailing 0) Ability to change the color of the zoom rectangle Removed compiler warnings for VC2005 Bug fix in the zoom

14/04/2008: Release of version 1.4 Added support for scrollbars Bar series added

Legend can be docked on any side or floating Support for legend in horizontal mode

Support for transparent background on the legend Support for shadow for several objects

RemovePointsFromBegin, RemovePointsFromEnd and AddPoints in the CChartSeries class Support for gradient background

EnableRefresh and UndoPanZoom functions added in CChartCtrl

Possibility to enable/disable the zoom for a specific axis and to set its limit Speed improvement on the series (min and max cached, ordering of the series) Series can be removed using their pointers Bug fix for invisible series in the legend

Bug fix for logarithmic axis (1 digit was not displayed)

Bug fix when removing series from the control

Bug fix if the pen width is bigger than 1 for line series Bug fix for automatic axis

20/08/2008: Release of version 1.5 Added support for UNICODE Added support for printing Auto-hide scrollbars

Baseline selection for bar series Performance patch

Scrollbar flickering removed (see here)

Bug fix: scrollbar is now updated when axis is panned Bug fix: calling AddPoint was not drawing the new point

Bug fix: tick labels for log axis were not always correct (rounding error) Bug fix: last point of ChartPointSerie was not displayed

Bug fix: moving the mouse outside the control doesn’t stop the zoom or pan operation (the button can be released outwww.hunanwang.netside the control)

13/04/2009: Release of version 2.0

The different axis types are now separated into different classes

Modified the way to add series to the control for improved flexibility Added cursors

Ability to display discrete axes

Ability to be notified about mouse events occurring on the control Added labels on points

Ability to display a smooth curve

Added ChartFont: allows for italic, bold or underlined fonts Added the SetReferenceTick function for date/time axis Ability to store user data for each point Series now have an Id

Removed the CChartObject class

Points are now stored in a standard array instead of a std::vector for efficiency

Binary search implemented for finding the first and last visible points (for efficiency) The line series now uses PolyLine instead of MoveTo/LineTo (efficiency) Bug fix when using date/time axis with a tick interval in years Bug fix: bar series were drawn from the wrong axis 11/06/2009: Release of version 2.0.1

Optimization: the pan feature has been smoothed

Optimization: points with the same X and Y values are not plotted anymore for the line series.

Bug fix: in some situations, the code was crashing when accessing points outside the valid range

Bug fix: when series were removed, the legend was accessing removed series (which crashed)

Bug fix: when a series was cleared, new points were not drawn properly

Bug fix: inserting a point for which the X value already existed in the series did not add the

point properly

Bug fix with the CChartFont class 07/08/2009: Release of version 2.0.2

Bug fix: the control was crashing when a series with no points and no ordering was added Bug fix: the shadow of the line was not drawn correctly

Bug fix: when an automatic date/time axis was used without any data, the code crashed 28/12/2009: Release of version 3.0.0

Series are now template classes with the template parameter being the point type. This allows the control to manipulate any type of points

Added candlestick and Gantt series

Added support to save the chart to an image file Bar series can be stacked

Added a new automatic mode for axes: the screen automatic mode

Listening for mouse events on a series has been moved to a CChartSeriesMouseListener class

Bug fix: when a point X or Y value is modified, the series is reordered

Bug fix: setting a tick increment on a standard axis did not show the digits properly 17/01/2010: Release of vewww.sm136.comrsion 3.0.1

Bug fix: when using labels with the points series, the border of the points was changing color. Fixed by providing a way to specify the border color.

Bug fix: the code was crashing when clicking on a series without having registered a mouse listener on the series.

Bug fix: detection of mouse events on certain series type was crashing Bug fix: CChartTitle::SetVisible was not implemented 13/07/2010: Release of version 3.0.2

Bug fix: the high-speed functionality has been removed by mistake Bug fix: …… 此处隐藏：4579字，全部文档内容请下载后查看。喜欢就下载吧 ……