How to fill each shape?

MapWinGIS
1

Hi.

I want to display RF received power to each cell with different color.
So, I have drawed 10*10 cells by shape, and add a field, like below.

        sf = new Shapefile();
        bool result = sf.CreateNewWithShapeID("", ShpfileType.SHP_POLYGON);

        if (!result)
        {
            MessageBox.Show(sf.ErrorMsg[sf.LastErrorCode]);
        }
        else
        {
            int fldArea = sf.EditAddField("received_power", FieldType.DOUBLE_FIELD, 9, 12);

            double xint = 1136340 + 90*100;
            double yint = 1667610 + 90*160;
            double w = 90;
            double h = 90;
            double x, y;


            // Make N*N rectangular
            int n = 10;
            for (int i = 0; i < n; i++)
            {
                x = xint + (w * i);

                for (int j = 0; j < n; j++)
                {
                    y = yint + (h * j);

                    // Create new shape
                    Shape shp = new Shape();
                    shp.Create(ShpfileType.SHP_POLYGON);

                    shp.AddPoint(x, y);
                    shp.AddPoint(x + w, y);
                    shp.AddPoint(x + w, y + h);
                    shp.AddPoint(x, y + h);
                    shp.AddPoint(x, y);

                    int index = i * 10 + j;
                    sf.EditInsertShape(shp, ref index);
                    sf.EditCellValue(fldArea, index, 100);
                }
            }

            sfhandle = axMap1.AddLayer(sf, true);

            BtnUnloadStation.Enabled = true;
            axMap1.ZoomToLayer(sfhandle);
        }

image
image624×510 12.4 KB

but I don’t know how to fill the cells with color.
Do you know any other way, let me know.
Please help me.

Thank you.

2

Hi.
I didn’t find fill the shape.
so, I tried to use drawlayer with circle.
Below image is the result.

image
image1145×951 116 KB

The result image has spaces, so it doesn’t conflied.
If I can change the circle to rectangle or polygon, the result image will be more clear.
But I don’t know, how to use the AxMap.DrawPolygon.
How can I set the AxMap.DrawPolygon’s arguement, ref object xPoints?

thank you

3

hi.
I found how to put array to object like below

double xPoints = new double[4];
double yPoints = new double[4];

xPoints[0] = x; yPoints[0] = y;
xPoints[1] = x + w; yPoints[1] = y;
xPoints[2] = x + w; yPoints[2] = y + h;
xPoints[3] = x; yPoints[3] = y + h;

object xObj = xPoints;
object yObj = yPoints;

axMap1.DrawPolygon(ref xObj, ref yObj, 4, color, true);

and the result image is

image