Steema Central

Hello,

I have this problem where I cannot plot a Polygon inside WebChart, Can anyone please let me know what I am doing wrong here, this is a simple example with the default.aspx having the following code, I can see a empty chart but no Polygon

public partial class _Default : System.Web.UI.Page
{
Steema.TeeChart.Chart tchart;
protected void Page_Load(object sender, EventArgs e)
{

tchart=WebChart1.Chart;
Steema.TeeChart.Styles.Map map1 = new Steema.TeeChart.Styles.Map(tchart);
Steema.TeeChart.Styles.Polygon P1 = new Steema.TeeChart.Styles.Polygon(tchart);
P1.Add(100.2, 100.2);
P1.Add(200.2, 200.2);
P1.Add(300.2, 300.3);
P1.Add(150.5, 150.5);
P1.Add(100.2, 100.2);
map1.Shapes.Add(P1);
P1.ParentSeries = map1;
}
}

Also I am successfully using AddShape method in map series to draw polygons, but the limitation for AddShape method is it takes only integer values. I am trying to use Polygon series so that I can use floating point co-ordinates.

Thanks

Hi am,

You should use AddPolygon as in the example. You can also use AddPolygon with doubles ass the Add method used there also admits doubles,

Hello,

Can you post a small snippet of the code ? Which example are you talking about ?

Thanks

Hi am,

I thought you had already seen the example. It is the All Features\Welcome !\Chart styles\Extended\Map GIS example in the features demo, which is available at TeeChart's program group. The example already includes its sources.

Hello Narcis,

I try result is the same as am,but I use window form chart.
The Map GIS example is use z vale,you can try below code.
The shape only display integer value.

Steema.TeeChart.Styles.Map map1 = new Steema.TeeChart.Styles.Map(tchart);
Steema.TeeChart.Styles.Polygon P1 = new Steema.TeeChart.Styles.Polygon(tchart);
P1.Add(100.2, 100.2);
P1.Add(200.2, 200.2);
P1.Add(300.2, 300.3);
P1.Add(150.5, 150.5);
P1.Add(100.2, 100.2);
map1.Shapes.Add(P1);

Hi wilcohsu

Have you tried the suggestion I made in my first reply to this thread? Does it work fine for you?

Thanks in advance.

Hi,

That is not precise.
I think that will use integate value to replace double value.
Does it right?

Hi wilcohsu,

Yes, there's no problem on doing this.