private PointF getPicBoxOffset(Point mouseLocation, drawingProperties dS)
{ // backwards calculation to keep real coordinates on mouse-pos. on zoom-in -out
float ratioVisu = dS.rangeX / dS.rangeY;
float ratioPic = pictureBox1.Width / pictureBox1.Height;
float maxposY = dS.rangeY;
if (ratioVisu > ratioPic)
{
maxposY = dS.rangeX * pictureBox1.Height / pictureBox1.Width;
}
float relposX = (picAbsPos.X - dS.minX) / dS.rangeX;
float relposY = (maxposY - picAbsPos.Y + dS.minY) / dS.rangeY;
if (ratioVisu > ratioPic)
{
relposY = relposY * ratioPic / ratioVisu;
}
else
{
relposX = relposX * ratioVisu / ratioPic;
}
PointF picOffset = new PointF();
picOffset.X = mouseLocation.X - (relposX * zoomFactor * pictureBox1.Width);
picOffset.Y = mouseLocation.Y - (relposY * zoomFactor * pictureBox1.Height);
return(picOffset);
}
private void createGridView()
{
drawingProperties tmp = new drawingProperties();
PointF ul = getGraphicCoordinateFromPictureBox(new Point(0, 0));
PointF lr = getGraphicCoordinateFromPictureBox(new Point(pictureBox1.Width, pictureBox1.Height));
tmp.setX((float)Math.Round(ul.X), (float)Math.Round(lr.X));
tmp.setY((float)Math.Round(ul.Y), (float)Math.Round(lr.Y));
VisuGCode.createRuler(ruler, tmp);
createGrid(grid, tmp, (float)nUDRaster.Value);
}
private void createGrid(GraphicsPath path, drawingProperties dS, float raster)
{
path.Reset();
float minX = (float)Math.Round(dS.minX / raster) * raster;
float minY = (float)Math.Round(dS.minY / raster) * raster;
for (float x = minX; x < (dS.maxX); x += raster)
{
path.StartFigure();
path.AddLine(x, dS.minY, x, dS.maxY);
}
for (float y = minY; y < (dS.maxY); y += raster)
{
path.StartFigure();
path.AddLine(dS.minX, y, dS.maxX, y);
}
}
private void logDrawingSize(drawingProperties dS)
{
Logger.Trace("logDrawingSize {0} {1} {2} {3}", dS.minX, dS.minY, dS.maxX, dS.maxY);
}
