100分 zedgraph横坐标问题

[ltmb118]

X轴为 时间 精确到秒

Y轴为数值，

现在发现 X轴 间距有问题

比如 12:30 12：40

13：00 13：50

这两个时间段，一个事 10分钟间距，一个事 50分钟间距，

但是在X轴上显示的时候， 间距间距几乎相等

[lzsh0622]

IsScaled 设置 X 轴标题字体显示大小是否根据图的比例放大缩小

[lzsh0622]

MajorGrid 大跨度的 X 轴表格虚线线显示信息

[lzsh0622]

IsFontsScaled 图比例变化时候图表上的文字是否跟着自动缩放

[ltmb118]

IsScaled 设置 X 轴标题字体显示大小是否根据图的比例放大缩小
--------------------------------------------
是组件的那个对象的属性呀

public static void zedG_FMT(ZedGraph.ZedGraphControl zdg,
System.Data.DataTable tabtmp_d,
string strtitle, string stry)
{

double dx = 0.00;
double dy = 0.00;

Application.DoEvents();

zdg.Refresh();

zdg.GraphPane.CurveList.Clear();



// 坐标列表
PointPairList list = new PointPairList();

// 坐标对象项目
LineItem myCurve;

zdg.GraphPane.Title.FontSpec.Size = 10;

zdg.GraphPane.Title.Text = strtitle;

zdg.GraphPane.XAxis.Title.Text = " 时间: ( 从 " +
tabtmp_d.Rows[tabtmp_d.Rows.Count - 1]["时间"].ToString() +
" 到 " +
tabtmp_d.Rows[0]["时间"].ToString() + " ) ";
//this.zdG_ll.GraphPane.XAxis.Title.FontSpec.Fill = new Fill(Color.Red);


//IsScaled
zdg.GraphPane.YAxis.Title.Text = stry;
zdg.GraphPane.YAxis.Title.FontSpec.Angle = 0;
//this.zdG_ll.GraphPane.YAxis.Title.FontSpec.Fill = new Fill(Color.Red);

zdg.GraphPane.XAxis.Type = ZedGraph.AxisType.Date;
zdg.GraphPane.XAxis.Color = Color.Red;

double ddd = (double)new XDate(Convert.ToDateTime(tabtmp_d.Rows[0]["时间"]));
double ddx = (double)new XDate(Convert.ToDateTime(tabtmp_d.Rows[tabtmp_d.Rows.Count - 1]["时间"]));

zdg.GraphPane.XAxis.Scale.MinorStep = 0.0500;
zdg.GraphPane.XAxis.Scale.Max = ddd + 1.5000;
zdg.GraphPane.XAxis.Scale.Min = ddx - 0.5000;
//zdg.GraphPane.XAxis.Scale.MaxAuto = false;
//zdg.GraphPane.XAxis.Scale.MinAuto = false;



// X 轴标题字符 角度
//this.zdG_ll.GraphPane.XAxis.Title.FontSpec.Angle = 90;

// X 轴 大值划线
zdg.GraphPane.XAxis.MajorGrid.IsVisible = true;
zdg.GraphPane.XAxis.MajorGrid.Color = Color.Red;



// Y 轴 大值划线
zdg.GraphPane.YAxis.MajorGrid.IsVisible = true;
zdg.GraphPane.YAxis.MajorGrid.Color = Color.Red;

zdg.GraphPane.YAxis.Color = Color.Red;

zdg.GraphPane.XAxis.Type = AxisType.DateAsOrdinal;

zdg.GraphPane.XAxis.Scale.Format = "yyyy-MM-dd HH:mm";


zdg.GraphPane.XAxis.Title.FontSpec.Size = 10;
zdg.GraphPane.YAxis.Title.FontSpec.Size = 10;


zdg.GraphPane.YAxis.Scale.IsUseTenPower = false;
zdg.GraphPane.YAxis.Title.IsOmitMag = true;
zdg.GraphPane.YAxis.Type = AxisType.Log;


for (int i = tabtmp_d.Rows.Count - 1; i >= 0; i--)
{
Application.DoEvents();

dx = (double)new XDate(Convert.ToDateTime(tabtmp_d.Rows[i]["时间"]));


dy = Convert.ToDouble(tabtmp_d.Rows[i][stry]);

list.Add(dx, dy);
}

zdg.GraphPane.XAxis.Scale.FontSpec.Size = 16;
zdg.GraphPane.YAxis.Scale.FontSpec.Size = 16;

string[] labs=new string[tabtmp_d.Rows.Count];
for (int y = 0; y <= tabtmp_d.Rows.Count -1; y++)
{
labs[y] = tabtmp_d.Rows[y]["时间"].ToString();
}
zdg.GraphPane.XAxis.Scale.TextLabels = labs;

Application.DoEvents();
myCurve = zdg.GraphPane.AddCurve("My Curve",
list, Color.Lime, SymbolType.Circle);

Application.DoEvents();

// 图例标题
//myCurve.Label.Text = " 图例 ";
myCurve.Label.IsVisible = false;


//zdG_ll.GraphPane.Fill = new Fill(Color.Black);
zdg.GraphPane.Chart.Fill = new Fill(Color.Black);

Application.DoEvents();

myCurve.Line.IsAntiAlias = true; //抗锯齿效果


// 在数据变化时绘制图形
zdg.AxisChange();

zdg.Invalidate(); // 修改图标



Application.DoEvents();

zdg.Refresh();

Application.DoEvents();

}

--------------
主要代码

[lzsh0622]

IsPreventLabelOverlap
坐标值显示是否允许重叠，如果False的话，控件会根据坐标值长度自动消除部分坐标值的显示状态

[lzsh0622]

给你个例子:ZedGraph控件的使用
http://tsunzhang.javaeye.com/blog/429601

[ltmb118]

IsPreventLabelOverlap
坐标值显示是否允许重叠，如果False的话，控件会根据坐标值长度自动消除部分坐标值的显示状态
-------------------------
没有找到这个属性

[ltmb118]

急

[ltmb118]

有人能解决这个问题吗 ？

急呀

[lzsh0622]

[Quote=引用 7 楼 ltmb118 的回复:]
IsPreventLabelOverlap
坐标值显示是否允许重叠，如果False的话，控件会根据坐标值长度自动消除部分坐标值的显示状态
-------------------------
没有找到这个属性
[/Quote]

private void button2_Click(object sender, EventArgs e)
{
    this.zedGraphControl1.GraphPane.Title.Text = "动态折线图";
    this.zedGraphControl1.GraphPane.XAxis.Title.Text = "时间";
    this.zedGraphControl1.GraphPane.YAxis.Title.Text = "数量";

    GraphPane myPane = new GraphPane(new Rectangle(40, 40, 600, 400),
        "My Test Graphn(For CodeProject Sample)",
        "My X Axis",
        "My Y Axis");
    myPane.XAxis.Scale.IsPreventLabelOverlap = true; //坐标值显示是否允许重叠，如果False的话，控件会根据坐标值长度自动消除部分坐标值的显示状态 
}

[wuyq11]

MinorGrid 小跨度的X轴表格虚线显示信息
MinorTic 小跨度的x轴刻度信息
MinSpace 刻度和轴之间的距离
IsScaled 设置X轴标题字体显示大小是否根据图的比例放大缩小
IsPreventLabelOverlap 坐标值显示是否允许重叠，如果False的话，控件会根据坐标值长度自动消除部分坐标值的显示状态
myPane.XAxis.Scale.Min = 1；//最小值
myPane.XAxis.Scale.Max = 100；//最大值
myPane.XAxis.Scale.MinorStep = 1;//步长

[ltmb118]

感谢大家，
问题解决了。

两个方案：

zdg.GraphPane.XAxis.Type = AxisType.Date;

// 这样就不行，变成等分了 zdg.GraphPane.XAxis.Type = AxisType.DateAsOrdinal;

zdg.GraphPane.XAxis.Scale.Format = "yyyy-MM-dd HH:mm";
----------------------------------------------------------------------

VS2008 +　ＭＳＣｈａｒｔ

　DateTime d1,d2,d3,d4;
d1 = DateTime.Now.Date ;



d2 = d1.AddMinutes(5);


d3 = d1.AddMinutes(10);

d4 = d1.AddMinutes(25);

string str1, str2, str3, str4, str5;

str1 = "2009-09-22 14:30:00";

str2 = "2009-09-22 14:35:00";

str3 = "2009-09-22 14:40:00";

str4 = "2009-09-22 15:30:00";


chart1.Series[0].Points.AddXY(d1 ,200000000);




chart1.Series[0].Points.AddXY(d2, 300000000);

chart1.Series[0].Points.AddXY(d3, 400000000);

chart1.Series[0].Points.AddXY(d4, 500000000);

chart1.Series[0].XValueType = ChartValueType.DateTime;

chart1.Series[0].Points[0].AxisLabel = "2009-09-22 14:30:00";




// 等分时间点
//chart1.Series[0].IsXValueIndexed = true;

// chart1.Series[0].IsValueShownAsLabel = true;



// Set series chart type
chart1.Series["Series1"].ChartType = SeriesChartType.Line;
//chart1.Series["Series2"].ChartType = SeriesChartType.Spline;

// Set point labels
chart1.Series["Series1"].IsValueShownAsLabel = true;
//chart1.Series["Series2"].IsValueShownAsLabel = true;

// Enable X axis margin
chart1.ChartAreas["ChartArea1"].AxisX.IsMarginVisible = true;

// Show as 3D
chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;

chart1.Invalidate();