public SdlOrthographicCamera DefaultCamera()
{
var camera = new SdlOrthographicCamera()
{
Location = SdlUtils.SdlVector(300, 100, 200),
LookAt = SdlUtils.SdlVector(0)
};
return(camera);
}
public SdlCsgObject Vector(double ox, double oy, double oz, double dx, double dy, double dz, double thickness)
{
var thicknessScalar = thickness.SdlScalar();
var vectorLength = dx * dx + dy * dy + dz * dz;
var arrowLength = thickness * 24;
var axisLength = vectorLength - arrowLength;
var axisToVectorRatio = axisLength / vectorLength;
var headToVectorRatio = arrowLength / vectorLength;
var axisStartPoint = SdlUtils.SdlVector(ox, oy, oz);
var axisEndPoint = axisStartPoint + axisToVectorRatio * SdlUtils.SdlVector(dx, dy, dz);
var arrowEndPoint = axisStartPoint + SdlUtils.SdlVector(dx, dy, dz);
var axis =
new SdlCylinder()
{
BasePoint = axisStartPoint,
CapPoint = axisEndPoint,
Radius = thicknessScalar
};
var axisStartSphere =
new SdlSphere()
{
Center = axisStartPoint,
Radius = thicknessScalar
};
var axisEndSphere =
new SdlSphere()
{
Center = axisEndPoint,
Radius = thicknessScalar
};
var arrow =
new SdlCone()
{
BasePoint = axisEndPoint,
BaseRadius = (arrowLength / 6).SdlScalar(),
CapPoint = arrowEndPoint,
CapRadius = SdlUtils.SdlScalar(0)
};
var vector = new SdlCsgObject()
{
CsgOperation = SdlCsgOperation.Union
};
vector.ChildObjects.Add(axis, axisStartSphere, axisEndSphere, arrow);
return(vector);
}
