private void OnMouseUp(object sender, MouseEventArgs e)
{
if (_band)
{
// clear the rubber band
_bandImage.Clear();
// re-calculate x axis
int l = _mouseDownAt.X;
int u = e.X;
if (l > u)
{
(l, u) = (u, l);
}
_axes.XAxis.Initialise(_vr.XCToV(l), _vr.XCToV(u), _origin.X, _noOfTicks);
_vr.SetXExtent(new RangeD(_axes.XAxis.Min, _axes.XAxis.Max));
// re-calculate y axis
l = _mouseDownAt.Y;
u = e.Y;
if (l > u)
{
(l, u) = (u, l);
}
_axes.YAxis.Initialise(_vr.YCToV(u), _vr.YCToV(l), _origin.Y, _noOfTicks);
_vr.SetYExtent(new RangeD(_axes.YAxis.Min, _axes.YAxis.Max));
// redraw
Replot();
_band = false;
}
else
{
if (_mapper != null && _mapper.Selected)
{
_mapperImage.Clear();
PlotterGraphics pg = new PlotterGraphics(_vr, _mapperImage.Graphics);
_mapper.Deselect(pg);
DisplayImage();
if (_plotter != null)
{
_plotter.PlotPoints(_mapper.Values(_vr));
}
}
}
}
public override List <PointDO> Values(ViewReckoner vr)
{
const int n = 50;
List <PointDO> values = new List <PointDO>();
double x0 = vr.XCToV(_p0.X);
double x1 = vr.XCToV(_p1.X);
double y0 = vr.YCToV(_p0.Y);
double y1 = vr.YCToV(_p1.Y);
double xd = (x1 - x0) / (double)n;
double yd = (y1 - y0) / (double)n;
for (int i = 0; i <= n; ++i)
{
values.Add(new PointDO(x0 + (double)i * xd, y0 + (double)i * yd, _color));
}
return(values);
}