private static List <GridlineScreen> MakeGridTheta(NuGenScreenTranslate transform, CoordSettings coordSettings, GridMeshSettings gridMeshSettings)
{
int i;
int xStartS, yStartS, xStopS, yStopS;
double thetaG = gridMeshSettings.startX;
GridlineScreen gridline;
List <GridlineScreen> gridlines = new List <GridlineScreen>();
for (i = 0; i < gridMeshSettings.countX; i++)
{
transform.XThetaYRToScreen(coordSettings, thetaG, gridMeshSettings.startY, out xStartS, out yStartS);
transform.XThetaYRToScreen(coordSettings, thetaG, gridMeshSettings.stopY, out xStopS, out yStopS);
gridline.Start.X = xStartS;
gridline.Start.Y = yStartS;
gridline.Stop.X = xStopS;
gridline.Stop.Y = yStopS;
gridline.R = false;
thetaG += gridMeshSettings.stepX;
gridlines.Add(gridline); //Maybe not?
}
return(gridlines);
}
private static List <GridlineScreen> MakeGridX(NuGenScreenTranslate transform, CoordSettings coordSettings, GridMeshSettings gridMeshSettings)
{
int i;
int xStartS, yStartS, xStopS, yStopS;
double xG = gridMeshSettings.startX;
GridlineScreen gridline;
List <GridlineScreen> gridlines = new List <GridlineScreen>();
for (i = 0; i < gridMeshSettings.countX; i++)
{
gridline = new GridlineScreen();
transform.XThetaYRToScreen(coordSettings, xG, gridMeshSettings.startY, out xStartS, out yStartS);
transform.XThetaYRToScreen(coordSettings, xG, gridMeshSettings.stopY, out xStopS, out yStopS);
gridline.Start.X = xStartS;
gridline.Start.Y = yStartS;
gridline.Stop.X = xStopS;
gridline.Stop.Y = yStopS;
gridline.R = false;
gridlines.Add(gridline);
if (coordSettings.xThetaScale == Scale.Linear)
{
xG += gridMeshSettings.stepX;
}
else
{
xG *= gridMeshSettings.stepX;
}
}
return(gridlines);
}
private static List <GridlineScreen> MakeGridR(NuGenScreenTranslate transform, CoordSettings coordSettings, GridMeshSettings gridMeshSettings)
{
int i;
int xStartS = 0, yStartS = 0, xStopS = 1, yStopS = 1;
double rG = gridMeshSettings.startY;
GridlineScreen gridline;
List <GridlineScreen> gridlines = new List <GridlineScreen>();
for (i = 0; i < gridMeshSettings.countY; i++)
{
gridline = new GridlineScreen();
// for polar coordinates we simply piecewise define the elliptical arc until motivated
// to implement a better drawing algorithm. segments will be evenly spaced in angle
// some pdf documents describing alternative algorithms are found in the doc directory.
// it would have been elegant to use QCanvasEllipses but those are axis-aligned.
double delta = AngleSpacing(coordSettings.thetaUnits);
bool first = true;
for (double angle = gridMeshSettings.startX; angle < gridMeshSettings.stopX; angle += delta)
{
transform.XThetaYRToScreen(coordSettings, angle, rG, out xStopS, out yStopS);
if (first)
{
xStartS = xStopS;
yStartS = yStopS;
}
else
{
if (NuGenMath.VectorMagnitude(xStopS - xStartS, yStopS - yStartS, 0.0) >= pixelSpacing)
{
gridline.Start.X = xStartS;
gridline.Start.Y = yStartS;
gridline.Stop.X = xStopS;
gridline.Stop.Y = yStopS;
gridline.R = true;
xStartS = xStopS;
yStartS = yStopS;
}
}
first = false;
}
if (coordSettings.yRScale == Scale.Linear)
{
rG += gridMeshSettings.stepY;
}
else
{
rG *= gridMeshSettings.stepY;
}
}
return(gridlines);
}
private static List<GridlineScreen> MakeGridTheta(NuGenScreenTranslate transform, CoordSettings coordSettings, GridMeshSettings gridMeshSettings)
{
int i;
int xStartS, yStartS, xStopS, yStopS;
double thetaG = gridMeshSettings.startX;
GridlineScreen gridline;
List<GridlineScreen> gridlines = new List<GridlineScreen>();
for (i = 0; i < gridMeshSettings.countX; i++)
{
transform.XThetaYRToScreen(coordSettings, thetaG, gridMeshSettings.startY, out xStartS, out yStartS);
transform.XThetaYRToScreen(coordSettings, thetaG, gridMeshSettings.stopY, out xStopS, out yStopS);
gridline.Start.X = xStartS;
gridline.Start.Y = yStartS;
gridline.Stop.X = xStopS;
gridline.Stop.Y = yStopS;
gridline.R = false;
thetaG += gridMeshSettings.stepX;
gridlines.Add(gridline); //Maybe not?
}
return gridlines;
}
private static List<GridlineScreen> MakeGridR(NuGenScreenTranslate transform, CoordSettings coordSettings, GridMeshSettings gridMeshSettings)
{
int i;
int xStartS = 0, yStartS = 0, xStopS = 1, yStopS = 1;
double rG = gridMeshSettings.startY;
GridlineScreen gridline;
List<GridlineScreen> gridlines = new List<GridlineScreen>();
for (i = 0; i < gridMeshSettings.countY; i++)
{
gridline = new GridlineScreen();
// for polar coordinates we simply piecewise define the elliptical arc until motivated
// to implement a better drawing algorithm. segments will be evenly spaced in angle
// some pdf documents describing alternative algorithms are found in the doc directory.
// it would have been elegant to use QCanvasEllipses but those are axis-aligned.
double delta = AngleSpacing(coordSettings.thetaUnits);
bool first = true;
for (double angle = gridMeshSettings.startX; angle < gridMeshSettings.stopX; angle += delta)
{
transform.XThetaYRToScreen(coordSettings, angle, rG, out xStopS, out yStopS);
if (first)
{
xStartS = xStopS;
yStartS = yStopS;
}
else
{
if (NuGenMath.VectorMagnitude(xStopS - xStartS, yStopS - yStartS, 0.0) >= pixelSpacing)
{
gridline.Start.X = xStartS;
gridline.Start.Y = yStartS;
gridline.Stop.X = xStopS;
gridline.Stop.Y = yStopS;
gridline.R = true;
xStartS = xStopS;
yStartS = yStopS;
}
}
first = false;
}
if (coordSettings.yRScale == Scale.Linear)
rG += gridMeshSettings.stepY;
else
rG *= gridMeshSettings.stepY;
}
return gridlines;
}
private static List<GridlineScreen> MakeGridX(NuGenScreenTranslate transform, CoordSettings coordSettings, GridMeshSettings gridMeshSettings)
{
int i;
int xStartS, yStartS, xStopS, yStopS;
double xG = gridMeshSettings.startX;
GridlineScreen gridline;
List<GridlineScreen> gridlines = new List<GridlineScreen>();
for (i = 0; i < gridMeshSettings.countX; i++)
{
gridline = new GridlineScreen();
transform.XThetaYRToScreen(coordSettings, xG, gridMeshSettings.startY, out xStartS, out yStartS);
transform.XThetaYRToScreen(coordSettings, xG, gridMeshSettings.stopY, out xStopS, out yStopS);
gridline.Start.X = xStartS;
gridline.Start.Y = yStartS;
gridline.Stop.X = xStopS;
gridline.Stop.Y = yStopS;
gridline.R = false;
gridlines.Add(gridline);
if (coordSettings.xThetaScale == Scale.Linear)
xG += gridMeshSettings.stepX;
else
xG *= gridMeshSettings.stepX;
}
return gridlines;
}