internal static SvgTransform CreateRotate(SvgAngle angle, float cx, float cy)
{
var rad = angle.ValueAsRadian;
var cos = Math.Cos(rad);
var sin = Math.Sin(rad);
return new SvgTransform(SvgTransformType.Rotate, new SvgMatrix(cos, sin, -sin, cos, -cx * cos + cy * sin + cx, -cx * sin - cy * cos + cy));
}
internal static SvgTransform CreateRotate(SvgAngle angle)
{
var rad = angle.ValueAsRadian;
var cos = Math.Cos(rad);
var sin = Math.Sin(rad);
return new SvgTransform(SvgTransformType.Rotate, new SvgMatrix(cos, sin, -sin, cos, 0.0, 0.0));
}
public void TestRadValues()
{
angle = new SvgAngle("2rad", null, false);
Assert.AreEqual(2 * 180 / Math.PI, angle.Value);
Assert.AreEqual(2, angle.ValueInSpecifiedUnits);
Assert.AreEqual("2rad", angle.ValueAsString);
Assert.AreEqual(SvgAngleType.Rad, angle.UnitType);
}
public void TestGradValues()
{
angle = new SvgAngle("200grad", null, false);
Assert.AreEqual(180, angle.Value);
Assert.AreEqual(200, angle.ValueInSpecifiedUnits);
Assert.AreEqual("200grad", angle.ValueAsString);
Assert.AreEqual(SvgAngleType.Grad, angle.UnitType);
}
public void TestDegValues()
{
angle = new SvgAngle("90deg", null, false);
Assert.AreEqual(90, angle.Value);
Assert.AreEqual(90, angle.ValueInSpecifiedUnits);
Assert.AreEqual("90deg", angle.ValueAsString);
Assert.AreEqual(SvgAngleType.Deg, angle.UnitType);
}
public void TestSettingValues()
{
angle = new SvgAngle("100grad", null, false);
Assert.AreEqual(90, angle.Value);
angle.Value = 45;
Assert.AreEqual(45, angle.Value);
Assert.AreEqual("50grad", angle.ValueAsString);
Assert.AreEqual(50, angle.ValueInSpecifiedUnits);
Assert.AreEqual(SvgAngleType.Grad, angle.UnitType);
angle.ValueInSpecifiedUnits = 300;
Assert.AreEqual(270, angle.Value);
Assert.AreEqual("300grad", angle.ValueAsString);
Assert.AreEqual(300, angle.ValueInSpecifiedUnits);
Assert.AreEqual(SvgAngleType.Grad, angle.UnitType);
angle.ValueAsString = "180deg";
Assert.AreEqual(180, angle.Value);
angle.NewValueSpecifiedUnits(SvgAngleType.Rad, Math.PI);
Assert.AreEqual(180, angle.Value);
Assert.AreEqual(Math.PI.ToString(SvgNumber.Format) + "rad", angle.ValueAsString);
angle.NewValueSpecifiedUnits(SvgAngleType.Unspecified, 270);
Assert.AreEqual(270, angle.Value);
Assert.AreEqual("270", angle.ValueAsString);
angle.ConvertToSpecifiedUnits(SvgAngleType.Grad);
Assert.AreEqual(270, angle.Value);
Assert.AreEqual(300, angle.ValueInSpecifiedUnits);
Assert.AreEqual("300grad", angle.ValueAsString);
// test default value
angle = new SvgAngle("", "90deg", false);
Assert.AreEqual(90, angle.Value);
}
internal static SvgTransform CreateSkewY(SvgAngle angle) => new SvgTransform(SvgTransformType.SkewY, new SvgMatrix(1.0, Math.Tan(angle.ValueAsRadian), 0.0, 1.0, 0.0, 0.0));
internal SvgTransform(SvgTransformType type, SvgMatrix matrix, SvgAngle angle)
{
this.Type = type;
this.Matrix = matrix;
this.Angle = angle;
}
