private void Button1_Click(object sender, EventArgs e)
{
double x = Convert.ToDouble(textBox1.Text);
double y = Convert.ToDouble(textBox2.Text);
GISVertex onevertex = new GISVertex(x, y);
GISPoint onepoint = new GISPoint(onevertex);
//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(onepoint, oneattribute);
features.Add(onefeature);
//画出这个GISFeature
Graphics graphics = this.CreateGraphics();
onefeature.draw(graphics, true, 0);
//参数分别是画笔 是否绘制属性 属性列表values的索引
}
private void Button1_Click(object sender, EventArgs e)
{
double x = Convert.ToDouble(textBox1.Text);
double y = Convert.ToDouble(textBox2.Text);
string attribute = textBox3.Text;
GISVertex onevertex = new GISVertex(x, y);
GISPoint onepoint = new GISPoint(onevertex, attribute);
Graphics graphics = this.CreateGraphics();
onepoint.DrawPoint(graphics);
onepoint.DrawAttribute(graphics); //绘制属性
points.Add(onepoint); //保存点到已建好的列表
}
private void button1_Click(object sender, EventArgs e)
{
double x = Convert.ToDouble(textBox1.Text);
double y = Convert.ToDouble(textBox2.Text);
string attribute = textBox3.Text;
GISPoint onepoint = new GISPoint(new GISVertex(x, y));
GISAttribute attributeset = new GISAttribute();
attributeset.AddValue(attribute);
GISFeature onefeasure = new GISFeature(onepoint, attributeset);
features.Add(onefeasure);
Graphics graphics = CreateGraphics();
onefeasure.draw(graphics, view, true, 0);
}
private List <GISFeature> GetRandomFeature(Random randobj, List <GISFeature> randgisfeature, int number)
{
//根据指定数量创造随机gisfeature对象
for (int i = 0; i < number; i++)
{
double lon = 360 * randobj.NextDouble() - 180;
double lat = 170 * randobj.NextDouble() - 85;
GISVertex onevertex = new GISVertex(lon, lat);
GISPoint onepoint = new GISPoint(onevertex);
//获取属性信息
string attribute1 = lon.ToString() + "," + lat.ToString();
string attribute2 = "地理坐标为：" + onevertex.mercatorx.ToString() + "," + onevertex.mercatory.ToString();
GISAttribute oneattribute = new GISAttribute();
oneattribute.AddValue(attribute1);
oneattribute.AddValue(attribute2);
//新建一个GISFeature 并添加到features数组中
GISFeature onefeature = new GISFeature(onepoint, oneattribute);
randgisfeature.Add(onefeature);
}
return(randgisfeature);
}
