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* 增加几个函数

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Sunny 2021-09-28 23:03:58 +08:00
parent 509d04193e
commit 768e8352e0
3 changed files with 45 additions and 4 deletions
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Bin/net40/SunnyUI.dll
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14
SunnyUI/Static/UGDI.cs
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@ -29,6 +29,20 @@ namespace Sunny.UI
{
public static class GDI
{
public static PointF AzRange(this PointF center, float range, float az, float xOffset = 0, float yOffset = 0)
{
float x = (float)(range * 1.0f * Math.Sin(az * Math.PI / 180));
float y = (float)(range * 1.0f * Math.Cos(az * Math.PI / 180));
return new PointF(center.X + xOffset + x, center.Y + yOffset - y);
}
public static PointF AzRange(this Point center, float range, float az, float xOffset = 0, float yOffset = 0)
{
float x = (float)(range * 1.0f * Math.Sin(az * Math.PI / 180));
float y = (float)(range * 1.0f * Math.Cos(az * Math.PI / 180));
return new PointF(center.X + xOffset + x, center.Y + yOffset - y);
}
/// <summary>
/// 点是否在区域内
/// </summary>

33
SunnyUI/Static/UGraphics.cs
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@ -929,11 +929,9 @@ namespace Sunny.UI
public static void DrawTwoPoints(this Graphics g, Color color, PointF pf1, PointF pf2, Rectangle rect, bool smooth = true, float penWidth = 1)
{
using (Pen pen = color.Pen(penWidth))
{
using Pen pen = color.Pen(penWidth);
DrawTwoPoints(g, pen, pf1, pf2, rect, smooth);
}
}
public static void DrawTwoPoints(this Graphics g, Pen pen, PointF pf1, PointF pf2, Rectangle rect, bool smooth = true)
{
@ -1072,5 +1070,34 @@ namespace Sunny.UI
TwoPoints.Clear();
}
/// <summary>
/// 以center为中心，绘制箭头，正北0°，顺时针0°到359°
/// </summary>
/// <param name="g">Graphics</param>
/// <param name="color">颜色</param>
/// <param name="center">中心点</param>
/// <param name="arrowSize">箭头尺寸</param>
/// <param name="arrowDir">箭头方向</param>
/// <param name="penWidth">笔宽</param>
public static void DrawArrow(this Graphics g, Color color, PointF center, float arrowSize, float arrowDir, float penWidth = 1)
{
using Pen pen = color.Pen(penWidth);
PointF pfStart = new PointF(Convert.ToSingle(center.X + arrowSize * Math.Sin(arrowDir.Rad()) / 2),
Convert.ToSingle(center.Y - arrowSize * Math.Cos(arrowDir.Rad()) / 2));
PointF pfEnd = new PointF(Convert.ToSingle(center.X - arrowSize * Math.Sin(arrowDir.Rad()) / 2),
Convert.ToSingle(center.Y + arrowSize * Math.Cos(arrowDir.Rad()) / 2));
double dAngle = arrowDir + 180 + 25;
PointF pfArrow1 = new PointF(Convert.ToSingle(pfStart.X + arrowSize * Math.Sin(dAngle.Rad()) / 2),
Convert.ToSingle(pfStart.Y - arrowSize * Math.Cos(dAngle.Rad()) / 2));
dAngle = arrowDir + 180 - 25;
PointF pfArrow2 = new PointF(Convert.ToSingle(pfStart.X + arrowSize * Math.Sin(dAngle.Rad()) / 2),
Convert.ToSingle(pfStart.Y - arrowSize * Math.Cos(dAngle.Rad()) / 2));
PointF[] pfPoints = { pfArrow1, pfStart, pfEnd, pfStart, pfArrow2 };
g.DrawLines(pen, pfPoints);
}
}
}