1 | // <developer>niklas@protocol7.com</developer>
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2 | // <developer>kevin@kevlindev.com</developer>
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3 | // <completed>100</completed>
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4 |
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5 | using System;
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6 |
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7 | namespace SharpVectors.Dom.Svg
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8 | {
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9 | /// <summary>
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10 | /// Many of the SVG DOM interfaces refer to objects of class SvgPoint.
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11 | /// An SvgPoint is an (x,y) coordinate pair. When used in matrix
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12 | /// operations, an SvgPoint is treated as a vector of the form:
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13 | /// [x]
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14 | /// [y]
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15 | /// [1]
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16 | /// </summary>
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17 | public sealed class SvgPoint : ISvgPoint
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18 | {
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19 | #region Fields
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20 |
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21 | private double x;
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22 | private double y;
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23 |
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24 | #endregion
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25 |
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26 | #region Constructor
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27 |
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28 | public SvgPoint(double x, double y)
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29 | {
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30 | this.x = x;
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31 | this.y = y;
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32 | }
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33 |
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34 | #endregion
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35 |
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36 | #region ISvgPoint Members
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37 |
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38 | public double X
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39 | {
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40 | get { return x; }
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41 | set { x = value; }
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42 | }
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43 |
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44 | public double Y
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45 | {
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46 | get { return y; }
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47 | set { y = value; }
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48 | }
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49 |
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50 | public ISvgPoint MatrixTransform(ISvgMatrix matrix)
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51 | {
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52 | return new SvgPoint(matrix.A*x + matrix.C*y + matrix.E,
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53 | matrix.B*x + matrix.D*y + matrix.F);
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54 | }
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55 |
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56 | #endregion
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57 |
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58 | #region Additional operators
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59 |
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60 | public SvgPoint lerp(SvgPoint that, double percent)
{
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61 | return new SvgPoint(
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62 | this.x + (that.x - this.x)*percent,
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63 | this.y + (that.y - this.y)*percent
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64 | );
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65 | }
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66 |
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67 | public static SvgPoint operator+(SvgPoint a, SvgPoint b)
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68 | {
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69 | return new SvgPoint(
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70 | a.x + b.x,
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71 | a.y + b.y
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72 | );
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73 | }
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74 |
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75 | public static SvgPoint operator-(SvgPoint a, SvgPoint b)
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76 | {
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77 | return new SvgPoint(
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78 | a.x - b.x,
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79 | a.y - b.y
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80 | );
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81 | }
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82 |
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83 | public static SvgPoint operator*(SvgPoint a, double scalar)
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84 | {
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85 | return new SvgPoint(
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86 | a.x * scalar,
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87 | a.y * scalar
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88 | );
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89 | }
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90 |
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91 | public static SvgPoint operator*(double scalar, SvgPoint a)
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92 | {
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93 | return new SvgPoint(
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94 | scalar * a.x,
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95 | scalar * a.y
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96 | );
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97 | }
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98 |
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99 | public static SvgPoint operator/(SvgPoint a, double scalar)
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100 | {
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101 | return new SvgPoint(
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102 | a.x / scalar,
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103 | a.y / scalar
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104 | );
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105 | }
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106 |
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107 | public static SvgPoint operator/(double scalar, SvgPoint a)
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108 | {
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109 | return new SvgPoint(
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110 | scalar / a.x,
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111 | scalar / a.y
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112 | );
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113 | }
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114 |
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115 | #endregion
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116 | }
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117 | } |
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