private void WriteFootprintArc(BinaryWriter writer, PcbArc arc)
{
WriteBlock(writer, w =>
{
WriteFootprintCommon(w, arc, arc.Location);
w.Write(arc.Radius.ToInt32());
w.Write((double)arc.StartAngle);
w.Write((double)arc.EndAngle);
w.Write(arc.Width.ToInt32());
});
}
private void RenderArcPrimitive(Graphics g, PcbArc arc)
{
var penColor = arc.Layer.Color;
var penWidth = ScaleCoord(arc.Width);
using (var pen = CreatePen(penColor, penWidth))
{
var center = ScreenFromWorld(arc.Location.X, arc.Location.Y);
var radius = ScaleCoord(arc.Radius);
var startAngle = (float)-arc.StartAngle; // GDI+ uses clockwise angles and Altium counter-clockwise
var sweepAngle = -(float)Utils.NormalizeAngle(arc.EndAngle - arc.StartAngle);
g.DrawArc(pen,
center.X - radius, center.Y - radius, radius * 2.0f, radius * 2.0f,
startAngle, sweepAngle);
}
}
private PcbArc ReadFootprintArc(BinaryReader reader)
{
return(ReadBlock(reader, recordSize =>
{
CheckValue(nameof(recordSize), recordSize, 45, 56);
var arc = new PcbArc();
ReadFootprintCommon(reader, arc);
arc.Location = ReadCoordPoint(reader);
arc.Radius = reader.ReadInt32();
arc.StartAngle = reader.ReadDouble();
arc.EndAngle = reader.ReadDouble();
arc.Width = reader.ReadInt32();
if (recordSize >= 56)
{
reader.ReadUInt32(); // TODO: Unknown - ordering?
reader.ReadUInt16(); // TODO: Unknown
reader.ReadByte(); // TODO: Unknown
reader.ReadUInt32(); // TODO: Unknown
}
return arc;
}));
}
