//构造偏转角交点法
private void button6_Click(object sender, EventArgs e)
{
delFeature("point");
IPoint fromPoint = new PointClass();
fromPoint.PutCoords(0, 0);
IPoint toPoint = new PointClass();
toPoint.PutCoords(1, 1);
ILine line = new LineClass();
line.PutCoords(fromPoint, toPoint);
double startAngle = Math.PI / 4;
double endAngle = Math.PI / 4;
IConstructPoint constructionPoint = new PointClass();
constructionPoint.ConstructDeflectionIntersection(line, startAngle, endAngle, false);
IPoint point = constructionPoint as IPoint;
addFeature("point", fromPoint);
addFeature("point", toPoint);
addFeature("point", point);
axMapControl1.Refresh();
}
