private static SvgCommand ScalePoint(SvgCommand point, double amount)
{
point.x *= amount;
point.y *= amount;
point.rx *= amount;
point.ry *= amount;
point.x1 *= amount;
point.y1 *= amount;
return(point);
}
private static SvgCommand TranslatePoint(SvgCommand point, double deltaX, double deltaY)
{
point.x += deltaX;
point.y += deltaY;
point.rx += deltaX;
point.ry += deltaY;
point.x1 += deltaX;
point.y1 += deltaY;
return(point);
}
private static SvgCommand DenormalizePoint(SvgCommand point, SvgCommand center)
{
point.x = point.x + center.x;
point.y = point.y + center.y;
point.x1 = point.x1 + center.x;
point.y1 = point.y1 + center.y;
point.rx = point.rx + center.x;
point.ry = point.ry + center.y;
return(point);
}
private static SvgCommand NormalizePoint(SvgCommand point, SvgCommand center)
{
point.x = point.x - center.x;
point.y = point.y - center.y;
point.x1 = point.x1 - center.x;
point.y1 = point.y1 - center.y;
point.rx = point.rx - center.x;
point.ry = point.ry - center.y;
return(point);
}
public SvgCommand lCmd(double x, double y)
{
SvgCommand returnValue = new SvgCommand();
InitPoint(returnValue);
returnValue.type = PointType.l;
returnValue.x = x;
returnValue.y = y;
return(returnValue);
}
private void InitPoint(SvgCommand point)
{
point.x = 0;
point.y = 0;
point.xAxisRotation = 0;
point.largeArc = 0;
point.sweep = 0;
point.rx = 0;
point.ry = 0;
point.x1 = 0;
point.y1 = 0;
}
public SvgCommand qCmd(double x, double y, double x1, double y1)
{
SvgCommand returnValue = new SvgCommand();
InitPoint(returnValue);
returnValue.type = PointType.q;
returnValue.x = x;
returnValue.y = y;
returnValue.x1 = x1;
returnValue.y1 = y1;
return(returnValue);
}
public SvgCommand aCmd(double x, double y, double rx, double ry, double xAxisRotation, double largeArc, double sweep)
{
SvgCommand returnValue = new SvgCommand();
InitPoint(returnValue);
returnValue.type = PointType.a;
returnValue.x = x;
returnValue.y = y;
returnValue.rx = rx;
returnValue.ry = ry;
returnValue.xAxisRotation = xAxisRotation;
returnValue.largeArc = largeArc;
returnValue.sweep = sweep;
return(returnValue);
}
public static void RotatePathToDegrees(ref SvgElement svg, double degrees, SvgCommand center)
{
for (var i = 0; i < svg.Path.Count; i++)
{
// Console.WriteLine("start" + svg.Path[i].x + ", " + svg.Path[i].y);
svg.Path[i] = NormalizePoint(svg.Path[i], center);
//Console.WriteLine("norm : " + svg.Path[i].x + ", " + svg.Path[i].y);
svg.Path[i] = RotatePointToDegrees(svg.Path[i], degrees, center);
//Console.WriteLine("rotate : " + svg.Path[i].x + ", " + svg.Path[i].y);
svg.Path[i] = DenormalizePoint(svg.Path[i], center);
//Console.WriteLine("denorm : " + svg.Path[i].x + ", " + svg.Path[i].y);
}
}
public SvgCommand DeepCopyPoint(ref SvgCommand toCopy)
{
SvgCommand returnValue = new SvgCommand();
InitPoint(returnValue);
returnValue.type = toCopy.type;
returnValue.x = toCopy.x;
returnValue.y = toCopy.y;
returnValue.xAxisRotation = toCopy.xAxisRotation;
returnValue.largeArc = toCopy.largeArc;
returnValue.sweep = toCopy.sweep;
returnValue.rx = toCopy.rx;
returnValue.ry = toCopy.ry;
returnValue.x1 = toCopy.x1;
returnValue.y1 = toCopy.y1;
return(returnValue);
}
private static SvgCommand RotatePointToDegrees(SvgCommand point, double degrees, SvgCommand center)
{
degrees = degrees * Math.PI / 180;
double oldVal;
oldVal = point.x;
point.x = Math.Round(point.x * Math.Cos(degrees), 2) - Math.Round(point.y * Math.Sin(degrees), 2);
point.y = Math.Round(oldVal * Math.Sin(degrees), 2) + Math.Round(point.y * Math.Cos(degrees), 2);
//Console.WriteLine(point);
point.x1 = point.x1 * Math.Cos(degrees) - point.y1 * Math.Sin(degrees + 180);
point.y1 = point.x1 * Math.Sin(degrees) + point.y1 * Math.Cos(degrees + 180);
point.rx = point.rx * Math.Cos(degrees) - point.ry * Math.Sin(degrees + 180);
point.ry = point.rx * Math.Sin(degrees) + point.ry * Math.Cos(degrees + 180);
return(point);
}
static void testrun1()
{
//
var a = new SvgDocumentParser();
SvgCommandFactory factory = new SvgCommandFactory();
SvgCommand p1 = factory.MCmd(0, 0);
SvgCommand p2 = factory.LCmd(70, 70);
//SvgCommand p3 = factory.LCmd(70, 60);
SvgElement line = new SvgElement();
line.Path.Add(p1);
line.Path.Add(p2);
//line.Path.Add(p3);
line.SetAttribute("stroke", "red");
line.SetAttribute("fill", "transparent");
//PathOperation.ScalePath(ref line, 0.5);
//PathOperation.TranslatePath(ref line, 250, 250);
SvgCommand d = new SvgCommand();
d.x = 35;
d.y = 35;
PathMatrixOperation.RotatePathToDegrees(ref line, 45, d);
SvgDocumentWriter writer = new SvgDocumentWriter();
SvgWrapper wrapper = new SvgWrapper();
wrapper.SetChild("one", line);
writer.WriteToFile("MySvg.svg", wrapper);
}
private static double CalculateAngleBetween(SvgCommand point, SvgCommand center)
{
point.x -= center.x;
point.y -= center.y;
int xSector = point.x < 0 ? -1 : 1;
int ySector = point.y < 0 ? -1 : 1;
point.x = Math.Abs(point.x);
point.y = Math.Abs(point.y);
double hypotenuse = Math.Sqrt(Math.Pow(point.x, 2) + Math.Pow(point.y, 2));
double angle = (180 / Math.PI) * Math.Asin(point.y / hypotenuse);
if (xSector < 1)
{
if (ySector < 1) // Sector 2
{
angle += 180;
}
else // Sector 2
{
angle += 90;
}
}
else
{
if (ySector < 1) // Sector 4
{
angle += 270;
}
}
Console.WriteLine($"Angle : {angle}");
return(angle);
}