private void QueryBound(IPointCollection pts, ITransformation displayTransform, out double minx, out double miny,
out double maxx, out double maxy)
{
IPoint point;
IPoint point1;
int i;
double x;
double y;
double num;
double num1;
double num2;
double num3;
double num4;
double num5 = 0;
List <double> nums = new List <double>();
for (i = 0; i < pts.PointCount - 1; i++)
{
point = pts.Point[i];
point1 = pts.Point[i + 1];
x = point.X - point1.X;
y = point.Y - point1.Y;
double num6 = Math.Sqrt(x * x + y * y);
num5 = num5 + num6;
nums.Add(num6);
}
double num7 = 1;
IEnvelope envelope = (pts as IGeometry).Envelope;
double map = this.PointsToMap(displayTransform, 50) * num7;
minx = envelope.XMin;
miny = envelope.YMin;
maxx = envelope.XMax;
maxy = envelope.YMax;
double item = num5;
for (i = 0; i < pts.PointCount - 1; i++)
{
point = pts.Point[i];
point1 = pts.Point[i + 1];
num = item / num5;
num1 = LabelSymbol.azimuth(point, point1);
num2 = num1 + 270;
num3 = map * Math.Cos(num2 / 180 * 3.14159265358979) * num;
num4 = map * Math.Sin(num2 / 180 * 3.14159265358979) * num;
maxx = (maxx > point.X + num3 ? maxx : point.X + num3);
maxy = (maxy > point.Y + num4 ? maxy : point.Y + num4);
minx = (minx < point.X + num3 ? minx : point.X + num3);
miny = (miny < point.Y + num4 ? miny : point.Y + num4);
num2 = num1 + 90;
num3 = map * Math.Cos(num2 / 180 * 3.14159265358979) * num;
num4 = map * Math.Sin(num2 / 180 * 3.14159265358979) * num;
maxx = (maxx > point.X + num3 ? maxx : point.X + num3);
maxy = (maxy > point.Y + num4 ? maxy : point.Y + num4);
minx = (minx < point.X + num3 ? minx : point.X + num3);
miny = (miny < point.Y + num4 ? miny : point.Y + num4);
item = item - nums[i];
}
int pointCount = pts.PointCount;
point = pts.Point[pointCount - 2];
point1 = pts.Point[pointCount - 1];
double num8 = LabelSymbol.azimuth(point, point1);
double map1 = this.PointsToMap(displayTransform, 60) * num7;
double num9 = map1 * Math.Cos(0.523598775598299);
if (num9 <= nums[pointCount - 2])
{
double item1 = nums[pointCount - 2] - num9;
x = point.X + item1 * Math.Cos(num8 / 180 * 3.14159265358979);
y = point.Y + item1 * Math.Sin(num8 / 180 * 3.14159265358979);
num = num9 / num5;
num1 = num8;
num2 = num1 + 270;
num3 = map * Math.Cos(num2 / 180 * 3.14159265358979) * num;
num4 = map * Math.Sin(num2 / 180 * 3.14159265358979) * num;
maxx = (maxx > x + num3 ? maxx : x + num3);
maxy = (maxy > y + num4 ? maxy : y + num4);
minx = (minx < x + num3 ? minx : x + num3);
miny = (miny < y + num4 ? miny : y + num4);
num2 = num1 + 90;
num3 = map * Math.Cos(num2 / 180 * 3.14159265358979) * num;
num4 = map * Math.Sin(num2 / 180 * 3.14159265358979) * num;
maxx = (maxx > x + num3 ? maxx : x + num3);
maxy = (maxy > y + num4 ? maxy : y + num4);
minx = (minx < x + num3 ? minx : x + num3);
miny = (miny < y + num4 ? miny : y + num4);
}
double num10 = num8 + 30 - 180;
double num11 = map1 * Math.Cos(num10 / 180 * 3.14159265358979);
double num12 = map1 * Math.Sin(num10 / 180 * 3.14159265358979);
maxx = (maxx > point1.X + num11 ? maxx : point1.X + num11);
maxy = (maxy > point1.Y + num12 ? maxy : point1.Y + num12);
minx = (minx < point1.X + num11 ? minx : point1.X + num11);
miny = (miny < point1.Y + num12 ? miny : point1.Y + num12);
num10 = num8 - 30 + 180;
num11 = map1 * Math.Cos(num10 / 180 * 3.14159265358979);
num12 = map1 * Math.Sin(num10 / 180 * 3.14159265358979);
maxx = (maxx > point1.X + num11 ? maxx : point1.X + num11);
maxy = (maxy > point1.Y + num12 ? maxy : point1.Y + num12);
minx = (minx < point1.X + num11 ? minx : point1.X + num11);
miny = (miny < point1.Y + num12 ? miny : point1.Y + num12);
}
private void Draw(Graphics g, Utility.POINTAPI[] ctrlpts)
{
int i;
double num = 0;
List <double> nums = new List <double>();
for (i = 0; i < (int)ctrlpts.Length - 1; i++)
{
double num1 = (double)(ctrlpts[i].x - ctrlpts[i + 1].x);
double num2 = (double)(ctrlpts[i].y - ctrlpts[i + 1].y);
double num3 = Math.Sqrt(num1 * num1 + num2 * num2);
num = num + num3;
nums.Add(num3);
}
double num4 = 50;
PointF[] pointFArray = new PointF[(int)ctrlpts.Length];
PointF[] pointFArray1 = new PointF[(int)ctrlpts.Length];
double item = num;
for (i = 0; i < (int)ctrlpts.Length - 1; i++)
{
double num5 = item / num;
double num6 = LabelSymbol.azimuth((double)ctrlpts[i].x, (double)ctrlpts[i].y,
(double)ctrlpts[i + 1].x, (double)ctrlpts[i + 1].y);
double num7 = num6 + 270;
double num8 = num4 * Math.Cos(num7 / 180 * 3.14159265358979) * num5;
double num9 = num4 * Math.Sin(num7 / 180 * 3.14159265358979) * num5;
PointF pointF = new PointF();
pointFArray[i].X = (float)((double)ctrlpts[i].x + num8);
pointFArray[i].Y = (float)((double)ctrlpts[i].y + num9);
num7 = num6 + 90;
num8 = num4 * Math.Cos(num7 / 180 * 3.14159265358979) * num5;
num9 = num4 * Math.Sin(num7 / 180 * 3.14159265358979) * num5;
pointFArray1[i].X = (float)((double)ctrlpts[i].x + num8);
pointFArray1[i].Y = (float)((double)ctrlpts[i].y + num9);
item = item - nums[i];
}
int length = (int)ctrlpts.Length;
double num10 = LabelSymbol.azimuth((double)ctrlpts[length - 2].x, (double)ctrlpts[length - 2].y,
(double)ctrlpts[length - 1].x, (double)ctrlpts[length - 1].y);
double num11 = 30;
double num12 = num10 + 30 - 180;
double num13 = num11 * Math.Cos(num12 / 180 * 3.14159265358979);
double num14 = num11 * Math.Sin(num12 / 180 * 3.14159265358979);
pointFArray[length - 1].X = (float)((double)ctrlpts[length - 1].x + num13);
pointFArray[length - 1].Y = (float)((double)ctrlpts[length - 1].y + num14);
double num15 = (double)ctrlpts[length - 1].x + num13 + num13;
double num16 = (double)ctrlpts[length - 1].y + num14 + num14;
num12 = num10 - 30 + 180;
num13 = num11 * Math.Cos(num12 / 180 * 3.14159265358979);
num14 = num11 * Math.Sin(num12 / 180 * 3.14159265358979);
pointFArray1[length - 1].X = (float)((double)ctrlpts[length - 1].x + num13);
pointFArray1[length - 1].Y = (float)((double)ctrlpts[length - 1].y + num14);
double num17 = (double)ctrlpts[length - 1].x + num13 + num13;
double num18 = (double)ctrlpts[length - 1].y + num14 + num14;
g.DrawLine(Pens.Black, (float)ctrlpts[length - 1].x, (float)ctrlpts[length - 1].y, (float)num15,
(float)num16);
g.DrawLine(Pens.Black, (float)ctrlpts[length - 1].x, (float)ctrlpts[length - 1].y, (float)num17,
(float)num18);
if (length <= 2)
{
g.DrawLines(Pens.Red, pointFArray);
g.DrawLines(Pens.Green, pointFArray1);
}
else
{
g.DrawCurve(Pens.Red, pointFArray);
g.DrawCurve(Pens.Green, pointFArray1);
}
}
private void Draw2(Graphics g, Utility.POINTAPI[] ctrlpts)
{
int i;
double num;
double num1;
double num2;
double num3;
double num4;
double num5;
double num6;
double num7 = 0;
List <double> nums = new List <double>();
for (i = 0; i < (int)ctrlpts.Length - 1; i++)
{
num = (double)(ctrlpts[i].x - ctrlpts[i + 1].x);
num1 = (double)(ctrlpts[i].y - ctrlpts[i + 1].y);
double num8 = Math.Sqrt(num * num + num1 * num1);
num7 = num7 + num8;
nums.Add(num8);
}
double referenceScale = 1;
if ((this.m_trans.ReferenceScale == 0 ? false : this.m_trans.Units != esriUnits.esriUnknownUnits))
{
try
{
referenceScale = this.m_trans.ReferenceScale / this.m_trans.ScaleRatio;
}
catch
{
}
}
double num9 = 50 * referenceScale;
PointF[] x = new PointF[(int)ctrlpts.Length];
PointF[] y = new PointF[(int)ctrlpts.Length];
double item = num7;
for (i = 0; i < (int)ctrlpts.Length - 1; i++)
{
num2 = item / num7;
num3 = LabelSymbol.azimuth((double)ctrlpts[i].x, (double)ctrlpts[i].y, (double)ctrlpts[i + 1].x,
(double)ctrlpts[i + 1].y);
num4 = num3 + 270;
num5 = num9 * Math.Cos(num4 / 180 * 3.14159265358979) * num2;
num6 = num9 * Math.Sin(num4 / 180 * 3.14159265358979) * num2;
x[i].X = (float)((double)ctrlpts[i].x + num5);
x[i].Y = (float)((double)ctrlpts[i].y + num6);
num4 = num3 + 90;
num5 = num9 * Math.Cos(num4 / 180 * 3.14159265358979) * num2;
num6 = num9 * Math.Sin(num4 / 180 * 3.14159265358979) * num2;
y[i].X = (float)((double)ctrlpts[i].x + num5);
y[i].Y = (float)((double)ctrlpts[i].y + num6);
item = item - nums[i];
}
int length = (int)ctrlpts.Length;
double num10 = LabelSymbol.azimuth((double)ctrlpts[length - 2].x, (double)ctrlpts[length - 2].y,
(double)ctrlpts[length - 1].x, (double)ctrlpts[length - 1].y);
double num11 = 60 * referenceScale;
double num12 = num11 * Math.Cos(0.523598775598299);
if (num12 > nums[length - 2])
{
x[length - 1].X = x[length - 2].X;
x[length - 1].Y = x[length - 2].Y;
y[length - 1].X = y[length - 2].X;
y[length - 1].Y = y[length - 2].Y;
}
else
{
double item1 = nums[length - 2] - num12;
num = (double)ctrlpts[length - 2].x + item1 * Math.Cos(num10 / 180 * 3.14159265358979);
num1 = (double)ctrlpts[length - 2].y + item1 * Math.Sin(num10 / 180 * 3.14159265358979);
num2 = num12 / num7;
num3 = num10;
num4 = num3 + 270;
num5 = num9 * Math.Cos(num4 / 180 * 3.14159265358979) * num2;
num6 = num9 * Math.Sin(num4 / 180 * 3.14159265358979) * num2;
x[length - 1].X = (float)(num + num5);
x[length - 1].Y = (float)(num1 + num6);
num4 = num3 + 90;
num5 = num9 * Math.Cos(num4 / 180 * 3.14159265358979) * num2;
num6 = num9 * Math.Sin(num4 / 180 * 3.14159265358979) * num2;
y[length - 1].X = (float)(num + num5);
y[length - 1].Y = (float)(num1 + num6);
}
double num13 = num10 + 30 - 180;
double num14 = num11 * Math.Cos(num13 / 180 * 3.14159265358979);
double num15 = num11 * Math.Sin(num13 / 180 * 3.14159265358979);
double num16 = (double)ctrlpts[length - 1].x + num14;
double num17 = (double)ctrlpts[length - 1].y + num15;
num13 = num10 - 30 + 180;
num14 = num11 * Math.Cos(num13 / 180 * 3.14159265358979);
num15 = num11 * Math.Sin(num13 / 180 * 3.14159265358979);
double num18 = (double)ctrlpts[length - 1].x + num14;
double num19 = (double)ctrlpts[length - 1].y + num15;
System.Drawing.Color color = ColorTranslator.FromOle(this.m_pColor.RGB);
Pen pen = new Pen(color, (float)this.m_widht);
g.DrawLine(pen, (float)ctrlpts[length - 1].x, (float)ctrlpts[length - 1].y, (float)num16, (float)num17);
g.DrawLine(pen, (float)ctrlpts[length - 1].x, (float)ctrlpts[length - 1].y, (float)num18, (float)num19);
g.DrawLine(pen, (float)x[length - 1].X, (float)x[length - 1].Y, (float)num16, (float)num17);
g.DrawLine(pen, (float)y[length - 1].X, (float)y[length - 1].Y, (float)num18, (float)num19);
if (length <= 2)
{
g.DrawLines(pen, x);
g.DrawLines(pen, y);
}
else
{
g.DrawCurve(pen, x);
g.DrawCurve(pen, y);
}
pen.Dispose();
}
public static double azimuth(IPoint pt1, IPoint pt2)
{
double num = LabelSymbol.azimuth(pt1.X, pt1.Y, pt2.X, pt2.Y);
return(num);
}