private void button3_Click(object sender, EventArgs e)
{
double x = Convert.ToDouble(textBox1.Text);
double y = Convert.ToDouble(textBox2.Text);
GISVertex onevertex = new GISVertex(x, y);
polyvertexes.Add(onevertex);
GISPolygon onepoly = new GISPolygon(polyvertexes);
//获取属性信息
//string attribute = textBox3.Text;
//GISAttribute oneattribute = new GISAttribute();
//oneattribute.AddValue(attribute);
//新建一个GISFeature 并添加到features数组中
GISFeature onefeature = new GISFeature(onepoly, null);
features.Add(onefeature);
//画出这个GISFeature
Graphics graphics = this.CreateGraphics();
onefeature.draw(graphics, false, 0);
//参数分别是画笔 是否绘制属性 属性列表values的索引
}
private void button5_Click(object sender, EventArgs e)
{
//获取属性信息
string attribute = textBox3.Text;
GISAttribute oneattribute = new GISAttribute();
oneattribute.AddValue(attribute);
GISPolygon onepoly = new GISPolygon(polyvertexes);
Graphics graphics = this.CreateGraphics();
oneattribute.draw(graphics, onepoly.endNode(), 0);
}