ZedGraph教程：C# ASP.NET中实现高级图表定制

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ZedGraph教程深入讲解了如何在C#和ASP.NET环境中利用这个优秀的开源绘图控件进行图表制作。首先，让我们来理解ZedGraph的核心概念： 1. **集成到Visual Studio (VS)**: ZedGraph易于在Microsoft Visual Studio中集成，提供了丰富的API和组件，使得开发人员能够快速地在C#项目中添加图表功能。 2. **关键属性设置**: - `RenderedImagePath`属性用于设置图片的保存路径，确保应用程序对该目录具有写入和修改权限，这对于保存绘制的图表至关重要。 - `OutputFormat`属性决定图片的输出格式，推荐使用PNG，因为它提供较高的图像质量。 3. **基础元素与控制**: - `Chart`: 是ZedGraph的核心，定义了图表的基本结构，包括图形类型（如折线图、柱状图等）。 - `ChartBorder` 和 `ChartFill`: 分别用于设置图表区域的边框样式和背景填充，可以定制图表的外观。 - `Legend`: 控制图表的注释标签，通过颜色对应不同的数据系列。 4. **轴与标签管理**: - `IsHStack`: 如果有多组数据，可以设置Y轴数据是否叠加显示。 - `Xaxis`: 用于配置X轴的细节，如颜色、原点设置、字体、角度等。 - `AxisColor` 和 `Cross`: 调整坐标轴的颜色和原点位置。 - `FontSpec`, `Angle`, `Fill`, `ColorOpacity`, `IsScaled`: 配置X轴标题的字体样式，包括大小、倾斜度、透明度以及是否随比例缩放。 5. **高级特性**: - `IsOmitMag` 和 `IsUseTenPower`: 控制是否显示指数表示法（10的幂）。 - `IsZeroLine`: 对于饼状图，决定0值是否显示。 - `IsVisible`: 显示或隐藏X轴。 - `MajorGrid` 和 `MinorGrid`: 定义X轴的大跨度和小跨度网格线的显示设置。 6. **调整坐标标签**: - `IsPreventLabelOverlap`: 避免坐标值重叠，自动调整标签显示。 - `IsShowTitle` 和 `IsTicsBetweenLabels`: 分别控制X轴标题的显示和刻度标签间的间隔。 - `IsInside`, `IsOutSide`, `IsOpposite`: 决定网格线在图表内的位置和对称性。 ZedGraph教程提供了一套全面的工具，帮助C#开发者在ASP.NET项目中创建专业水准的图表，并通过各种属性灵活地调整和定制图表的细节。通过理解和熟练运用这些设置，你可以创建出满足需求的各种复杂图形。

ScrollProgressEvent ->> Subscribe to this event to be notified when the

GraphPane is scrolled by the user using the scrollbars.

SelectAppendModifierKeys ->> Gets or sets a value that determines which

Modifier keys will be used to append a CurveItem to the selection list.

SelectButtons ->> Gets or sets a value that determines which Mouse button

will be used to select CurveItem's.

Selection ->> Readonly property that gets the list of selected CurveItems

SelectModifierKeys ->> Gets or sets a value that determines which Modifier

keys will be used to select CurveItem's.

SetScrollRangeFromData()() ->> Sets the value of the scroll range

properties (see ScrollMinX, ScrollMaxX, YScrollRangeList, and

Y2ScrollRangeList based on the actual range of the data for each

corresponding Axis.

Y2ScrollRangeList ->> Access the ScrollRangeList for the Y2 axes.

YScrollRangeList ->> Access the ScrollRangeList for the Y axes.

ZoomButtons ->> Gets or sets a value that determines which mouse button

will be used as a primary option to trigger a zoom event.

ZoomButtons2 ->> Gets or sets a value that determines which mouse button

will be used as the secondary option to trigger a zoom event.

ZoomEvent ->> Subscribe to this event to be notified when the GraphPane

is zoomed or panned by the user, either via a mouse drag operation or by

the context menu commands.

ZoomModifierKeys ->> Gets or sets a value that determines which modifier

keys will be used as a primary option to trigger a zoom event.

ZoomModifierKeys2 ->> Gets or sets a value that determines which modifier

keys will be used as a secondary option to trigger a zoom event.

ZoomOut(GraphPane) ->> Handler for the "UnZoom/UnPan" context menu item.

Restores the scale ranges to the values before the last zoom, pan, or

scroll operation.

ZoomOutAll(GraphPane) ->> Handler for the "Undo All Zoom/Pan" context

menu item. Restores the scale ranges to the values before all zoom and

pan operations

ZoomPane(GraphPane, Double, PointF, Boolean) ->> Zoom a specified pane

in or out according to the specified zoom fraction.

ZoomStepFraction ->> Gets or sets the step size fraction for zooming with

the mouse wheel. A value of 0.1 will result in a 10% zoom step for each

mouse wheel movement.

Axis Class 坐标轴信息

Member ->> Description

AxisGap ->> The size of the gap between multiple axes (see YAxisList and

Y2AxisList).

CalcSpace(Graphics, GraphPane, Single, Single%) ->> Calculate the space

required (pixels) for this Axis object.

Color ->> The color to use for drawing this Axis.

Cross ->> Gets or sets the scale value at which this axis should cross

the "other" axis.

CrossAuto ->> Gets or sets a value that determines whether or not the Cross

value is set automatically.

Draw(Graphics, GraphPane, Single, Single) ->> Do all rendering associated

with this Axis to the specified Graphics device.

DrawMinorTics(Graphics, GraphPane, Double, Single, Single, Single) ->>

Draw the minor tic marks as required for this Axis.

DrawTitle(Graphics, GraphPane, Single, Single) ->> Draw the title for

this Axis.

GetCrossAxis(GraphPane) ->> Gets the "Cross" axis that corresponds to

this axis.

GetObjectData(SerializationInfo, StreamingContext) ->> Populates a

SerializationInfoinstance with the data needed to serialize the target

object

IsAxisSegmentVisible ->> Gets or sets a property that determines whether

or not the axis segment (the line that represents the axis itself) is drawn.

IsVisible ->> 是否可见。

MajorGrid ->> 见下面相关内容。

MajorTic ->> 见下面相关内容。

MinorGrid ->> 见下面相关内容。

MinorTic ->> 见下面相关内容。

MinSpace ->> Gets or sets the minimum axis space allocation.

ResetAutoScale(GraphPane, Graphics) ->> Restore the scale ranging to

automatic mode, and recalculate the Axis scale ranges

Scale ->> Gets the Scale instance associated with this Axis.

ScaleFormatEvent ->> Subscribe to this event to handle custom formatting

of the scale labels.

ScaleTitleEvent ->> Allow customization of the title when the scale is

very large Subscribe to this event to handle custom formatting of the scale

axis label.

SetMinSpaceBuffer(Graphics, GraphPane, Single, Boolean) ->> This method

will set the MinSpace property for this Axis using the currently required

space multiplied by a fraction ().

SetTransformMatrix(Graphics, GraphPane, Single) ->> Setup the Transform

Matrix to handle drawing of this Axis

ICloneable..::Clone()()

Implement the ICloneableinterface in a typesafe manner by just calling

the typed version of Clone.

Tag

A tag object for use by the user. This can be used to store additional

information associated with the Axis. ZedGraph does not use this value

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