public void AddAlignmentLines()
{
SvgGroupElement alinmentLinesGroup = new SvgGroupElement("AlignmentLines");
alinmentLinesGroup.Style = s_AlignmentLineStyle;
SvgLineElement line1 = new SvgLineElement(
GetSvgLength(this.Origin.X), GetSvgLength(0),
GetSvgLength(this.Origin.X), GetSvgLength(this.Page.Width));
alinmentLinesGroup.AddChild(line1);
SvgLineElement line2 = new SvgLineElement(
GetSvgLength(0), GetSvgLength(this.Origin.Y),
GetSvgLength(this.Page.Width), GetSvgLength(this.Origin.Y));
alinmentLinesGroup.AddChild(line2);
float radius = 65;
SvgEllipseElement cutOutCircle = new SvgEllipseElement(
GetSvgLength(this.Origin.X), GetSvgLength(this.Origin.Y),
GetSvgLength(radius), GetSvgLength(radius));
alinmentLinesGroup.AddChild(cutOutCircle);
this.Root.AddChild(alinmentLinesGroup);
}
public Geometry CreateGeometry(SvgEllipseElement element)
{
double _cx = Math.Round(element.Cx.AnimVal.Value, 4);
double _cy = Math.Round(element.Cy.AnimVal.Value, 4);
double _rx = Math.Round(element.Rx.AnimVal.Value, 4);
double _ry = Math.Round(element.Ry.AnimVal.Value, 4);
if (_rx <= 0 || _ry <= 0)
{
return(null);
}
/*if (_cx <= 1 && _cy <= 1 && _rx <= 1 && _ry <= 1)
* {
* gp.AddEllipse(_cx-_rx, _cy-_ry, _rx*2, _ry*2);
* }
* else
* {
* gp.AddEllipse(_cx-_rx, _cy-_ry, _rx*2 - 1, _ry*2 - 1);
* }*/
//gp.AddEllipse(_cx - _rx, _cy - _ry, _rx * 2, _ry * 2);
EllipseGeometry geometry = new EllipseGeometry(new Point(_cx, _cy),
_rx, _ry);
return(geometry);
}
private void AddCenteredCircle(SvgGroupElement group, float radius)
{
SvgEllipseElement circleElement = new SvgEllipseElement(
0, 0,
radius, radius);
group.AddChild(circleElement);
}
internal static SvgEllipseElement CreateCenteredCircle(double radius, SvgStyle style)
{
SvgEllipseElement circleElement = new SvgEllipseElement(
0, 0,
(float)radius, (float)radius);
circleElement.Style = style;
return(circleElement);
}
public override SvgPathSegList VisitEllipseElement(SvgEllipseElement element)
{
var cx = element.Cx?.Value ?? 0;
var cy = element.Cy?.Value ?? 0;
var rx = element.Rx?.Value ?? 0;
var ry = element.Ry?.Value ?? 0;
return(CreateEllipsePaths(cx, cy, ry, rx));
}
protected override void RenderEllipse(CanvasDrawingSession session, SvgEllipseElement element)
{
var centerX = this.LengthConverter.ConvertX(element.CenterX);
var centerY = this.LengthConverter.ConvertY(element.CenterY);
var radiusX = this.LengthConverter.ConvertX(element.RadiusX);
var radiusY = this.LengthConverter.ConvertY(element.RadiusY);
using (var geometry = CanvasGeometry.CreateEllipse(this.ResourceCreator, centerX, centerY, radiusX, radiusY))
{
this.RenderGeometory(session, geometry, element.Transform.Result, element.Style);
}
}
public static SvgEllipseElement CreateCircle(Point center, double radius, SvgStyle style)
{
SvgEllipseElement circleElement = new SvgEllipseElement(
center.X, center.Y,
radius, radius);
if (style != null)
{
circleElement.Style = style;
}
return(circleElement);
}
private IEnumerable <SvgStyledTransformedElement> GetCircles(float distance)
{
float maxRadius = (float)Math.Sqrt(this.Page.Width * this.Page.Width / 4 + (this.Page.Height - this.Origin.Y) * (this.Page.Height - this.Origin.Y));
int count = (int)(maxRadius / distance);
for (int i = 0; i <= count; i++)
{
float radius = i * distance;
SvgEllipseElement circleElement = new SvgEllipseElement(
GetSvgLength(this.Origin.X), GetSvgLength(this.Origin.Y),
GetSvgLength(radius), GetSvgLength(radius));
yield return(circleElement);
}
}
public static GraphicsPath CreatePath(SvgEllipseElement element)
{
GraphicsPath gp = new GraphicsPath();
float _cx = (float)element.Cx.AnimVal.Value;
float _cy = (float)element.Cy.AnimVal.Value;
float _rx = (float)element.Rx.AnimVal.Value;
float _ry = (float)element.Ry.AnimVal.Value;
if (_rx <= 0 || _ry <= 0)
{
return(null);
}
gp.AddEllipse(_cx - _rx, _cy - _ry, _rx * 2, _ry * 2);
return(gp);
}
public Geometry CreateGeometry(SvgEllipseElement element)
{
double _cx = Math.Round(element.Cx.AnimVal.Value, 4);
double _cy = Math.Round(element.Cy.AnimVal.Value, 4);
double _rx = Math.Round(element.Rx.AnimVal.Value, 4);
double _ry = Math.Round(element.Ry.AnimVal.Value, 4);
if (_rx <= 0 || _ry <= 0)
{
return(null);
}
EllipseGeometry geometry = new EllipseGeometry(new Point(_cx, _cy),
_rx, _ry);
return(geometry);
}
public static GraphicsPath CreatePath(SvgEllipseElement element)
{
GraphicsPath gp = new GraphicsPath();
float _cx = (float)element.Cx.AnimVal.Value;
float _cy = (float)element.Cy.AnimVal.Value;
float _rx = (float)element.Rx.AnimVal.Value;
float _ry = (float)element.Ry.AnimVal.Value;
/*if (_cx <= 1 && _cy <= 1 && _rx <= 1 && _ry <= 1)
* {
* gp.AddEllipse(_cx-_rx, _cy-_ry, _rx*2, _ry*2);
* }
* else
* {
* gp.AddEllipse(_cx-_rx, _cy-_ry, _rx*2 - 1, _ry*2 - 1);
* }*/
gp.AddEllipse(_cx - _rx, _cy - _ry, _rx * 2, _ry * 2);
return(gp);
}
public Geometry CreateGeometry(SvgEllipseElement element)
{
double _cx = Math.Round(element.Cx.AnimVal.Value, 4);
double _cy = Math.Round(element.Cy.AnimVal.Value, 4);
double _rx = Math.Round(element.Rx.AnimVal.Value, 4);
double _ry = Math.Round(element.Ry.AnimVal.Value, 4);
// New in SVG 2. The auto value for rx and ry was added to allow consistent parsing of these properties for both ellipses and rectangles.
// Previously, if either rx or ry was unspecified, the ellipse would not render.
double r = Math.Max(_rx, _ry);
if (_rx <= 0 || _ry <= 0)
{
if (r <= 0)
{
return(null);
}
else
{
if (_rx <= 0 && !element.HasAttribute("rx"))
{
_rx = r;
}
else if (_ry <= 0 && !element.HasAttribute("ry"))
{
_ry = r;
}
}
if (_rx <= 0 || _ry <= 0)
{
return(null);
}
}
EllipseGeometry geometry = new EllipseGeometry(new Point(_cx, _cy), _rx, _ry);
return(geometry);
}
private void button2_Click(object sender, System.EventArgs e)
{
var root = new SvgSvgElement("4in", "4in", "-10,-10 250,250");
//adding multiple children
root.AddChildren(
new SvgRectElement(5, 5, 5, 5),
new SvgEllipseElement(20, 20, 8, 12)
{
Style = "fill:yellow;stroke:red"
},
new SvgAElement("https://github.com/managed-commons/SvgNet").AddChildren(
new SvgTextElement("Textastic!", 30, 20)
{
Style = "fill:midnightblue;stroke:navy;stroke-width:1px;font-size:30px;font-family:Calibri"
})
);
//group and path
var grp = new SvgGroupElement("green_group")
{
Style = "fill:green;stroke:black;"
};
grp.AddChild(new SvgRectElement(30, 30, 5, 20));
var ell = new SvgEllipseElement
{
CX = 50,
CY = 50,
RX = 10,
RY = 20
};
var pathy = new SvgPathElement
{
D = "M 20,80 C 20,90 30,80 70,100 C 70,100 40,60 50,60 z",
Style = ell.Style
};
root.AddChild(grp);
//cloning and style arithmetic
grp.AddChildren(ell, pathy);
grp.Style.Set("fill", "blue");
var grp2 = (SvgGroupElement)SvgFactory.CloneElement(grp);
grp2.Id = "cloned_red_group";
grp2.Style.Set("fill", "red");
grp2.Style += "opacity:0.5";
grp2.Transform = "scale (1.2, 1.2) translate(10)";
root.AddChild(grp2);
//output
string s = root.WriteSVGString(true);
tbOut.Text = s;
string tempFile = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "foo.svg");
using (var tw = new StreamWriter(tempFile, false))
tw.Write(s);
svgOut.Navigate(new Uri(tempFile));
svgOut.Refresh(WebBrowserRefreshOption.Completely);
}
protected abstract void RenderEllipse(TSession session, SvgEllipseElement element);
public override void VisitEllipseElement(SvgEllipseElement element)
{
this.RenderShapeToCanvas(element, new EllipsePolygon(element.Cx.Value.Value, element.Cy.Value.Value, element.Rx.Value.Value * 2, element.Ry.Value.Value * 2));
}
private void button2_Click(object sender, System.EventArgs e)
{
SvgSvgElement root = new SvgSvgElement("4in", "4in", "0,0 100,100");
//adding multiple children
root.AddChildren(
new SvgRectElement(5, 5, 5, 5),
new SvgEllipseElement(30, 10, 8, 12),
new SvgTextElement("Textastic!", 3, 20)
);
//group and path
SvgGroupElement grp = new SvgGroupElement("green_group")
{
Style = "fill:green;stroke:black;"
};
SvgEllipseElement ell = new SvgEllipseElement {
CX = 50,
CY = 50,
RX = 10,
RY = 20
};
SvgPathElement pathy = new SvgPathElement {
D = "M 20,80 C 20,90 30,80 70,100 C 70,100 40,60 50,60 z",
Style = ell.Style
};
root.AddChild(grp);
//cloning and style arithmetic
grp.AddChildren(ell, pathy);
grp.Style.Set("fill", "blue");
SvgGroupElement grp2 = (SvgGroupElement)SvgFactory.CloneElement(grp);
grp2.Id = "cloned_red_group";
grp2.Style.Set("fill", "red");
grp2.Style += "opacity:0.5";
grp2.Transform = "scale (1.2, 1.2) translate(10)";
root.AddChild(grp2);
//output
string s = root.WriteSVGString(true);
tbOut.Text = s;
string tempFile = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "foo.svg");
StreamWriter tw = new StreamWriter(tempFile, false);
tw.Write(s);
tw.Close();
svgOut.Navigate(new Uri(tempFile));
svgOut.Refresh(WebBrowserRefreshOption.Completely);
}
private void button2_Click(object sender, System.EventArgs e)
{
SvgSvgElement root = new SvgSvgElement("4in", "4in", "0,0 100,100");
//adding multiple children
root.AddChildren(
new SvgRectElement(5, 5, 5, 5),
new SvgEllipseElement(30, 10, 8, 12),
new SvgTextElement("Textastic!", 3, 20)
);
//group and path
SvgGroupElement grp = new SvgGroupElement("green_group");
grp.Style = "fill:green;stroke:black;";
SvgEllipseElement ell = new SvgEllipseElement();
ell.CX = 50;
ell.CY = 50;
ell.RX = 10;
ell.RY = 20;
SvgPathElement pathy = new SvgPathElement();
pathy.D = "M 20,80 C 20,90 30,80 70,100 C 70,100 40,60 50,60 z";
pathy.Style = ell.Style;
root.AddChild(grp);
//cloning and style arithmetic
grp.AddChildren(ell, pathy);
grp.Style.Set("fill", "blue");
SvgGroupElement grp2 = (SvgGroupElement)SvgFactory.CloneElement(grp);
grp2.Id = "cloned_red_group";
grp2.Style.Set("fill", "red");
grp2.Style += "opacity:0.5";
grp2.Transform = "scale (1.2, 1.2) translate(10)";
root.AddChild(grp2);
//output
string s = root.WriteSVGString(true);
tbOut.Text = s;
StreamWriter tw = new StreamWriter("c:\\temp\\foo.svg", false);
tw.Write(s);
tw.Close();
svgOut.SRC = "c:\\temp\\foo.svg";
}
public virtual void VisitEllipseElement(SvgEllipseElement element) => DefaultVisit(element);
public override void VisitEllipseElement(SvgEllipseElement element) => VisitPathSegList(element, element.ConvertToPathSegList());
