TChart的使用

TChart的使用

1.设置TChart的3d属性
Tchart.Aspect.View3D = true;

2.设置TChart y轴的Label显示样式
tChart.Axes.Left.Labels.Style = Steema.TeeChart.AxisLabelStyle.Auto;

3.设置TChart x轴的Label显示样式
tChart.Axes.Bottom.Labels.Style = Steema.TeeChart.AxisLabelStyle.Mark;

4.设置TChart Label的角度
tChart.Axes.Bottom.Labels.Angle = 45;

5.设置Tchart的Legend显示
TChart.Legend.Visible = true;

6.设置TChart Legend显示的位置
TChart.Legend.Alignment = Steema.TeeChart.LegendAlignments.Bottom;

7.设置Line的不同颜色显示
line1.ColorEach = true;

8.设置Bar的不同颜色显示
bar.ColorEach =true;

7.TChart的点击事件
ClickSeries(object sender, Steema.TeeChart.Styles.Series s, int valueIndex, MouseEventArgs e)
3D显示时，要设置好TChart.Aspect下的Chart3DPercent，Elevation等属性的值，否则点击视觉上看到的TChart的部分而无法触发该事件。造成这种情况的原因是3d投影的问题。在这里不详细讨论。

一个实现2D直线图，2D柱状图，2D饼图，3D直线图，3D柱状图，3D饼图切换的例子
思路是：先在TChart中添加3中类型的Series(line,bar,pie),然后通过控制TChart是否3D显示来实现
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            int type = comboBox1.SelectedIndex;
            if (type > 2)
            {
                type -= 3;
            }
            for (int k = 0; k < comboBox1.Items.Count / 2; k++)
            {
                tChart1[k].Clear();
            }
            if (this.comboBox1.SelectedIndex > 2)
            {
                //设置tChart13D显示
                tChart1.Aspect.View3D = true;
                switch (comboBox1.SelectedIndex)
                {
                    //设置3D饼图，该设置点击饼图的所有地方都能触发ClickSeries事件
                    case 5:
                        this.tChart1.Aspect.Elevation = 288;
                        this.tChart1.Aspect.Orthogonal = false;
                        this.tChart1.Aspect.Perspective = 0;
                        this.tChart1.Aspect.Rotation = 360;
                        break;

                    //设置3D直线图和3D柱状图，该设置点击线图，和柱状图的所有地方都能触发ClickSeries事件
                    default:
                        this.tChart1.Aspect.Chart3DPercent = 15;
                        this.tChart1.Aspect.Orthogonal = false;
                        this.tChart1.Aspect.Perspective = 15;
                        this.tChart1.Aspect.Rotation = 345;
                        this.tChart1.Aspect.Elevation = 345;
                        this.tChart1.Aspect.Orthogonal = true;
                        this.tChart1.Legend.TopLeftPos = 2;
                        break;

                }
            }
            else
            {
                tChart1.Aspect.View3D = false;
            }
            foreach (DataRow row in ConstructDataSource(GetDataTable()).Rows)
            {
                tChart1[type].Add(double.Parse(row["指标值"].ToString()), row["指标名"].ToString());
            }
            tChart1[type].CheckDataSource();
            tChart1.Legend.Series = tChart1[type];
            tChart1.Legend.Alignment = Steema.TeeChart.LegendAlignments.Bottom;
        }