private void _viewer_MouseMove(object sender, MouseEventArgs e)
{
if (_annAutomation.Container != null)
{
AnnPoint physical = new AnnPoint(e.X, e.Y, AnnUnit.Pixel);
AnnTransformer transformer = new AnnTransformer(_annAutomation.Container.UnitConverter, _annAutomation.Container.Transform);
AnnPoint logical = transformer.PointToLogical(physical);
}
}
private void _viewer_MouseMove(object sender, MouseEventArgs e)
{
if (_annAutomation.Container != null)
{
AnnPoint physical = new AnnPoint(e.X, e.Y, AnnUnit.Pixel);
AnnTransformer transformer = new AnnTransformer(_annAutomation.Container.UnitConverter, _annAutomation.Container.Transform);
AnnPoint logical = transformer.PointToLogical(physical);
}
}
public void RotateImageAndAnnotations(int angle, AnnContainer container)
{
// round the angle
angle %= 360;
if (angle == 0)
{
return; // nothing to do
}
// when we rotate an image, this is what happens:
// 1. the image is rotated around its center (width/2, height/2)
// 2. the image is translated so that its top,left position is at 0,0
// to calculate this translation, we:
// 1. find the 4 end points of the container
// 2. rotate these points
// 3. find the minimum/maximum "out of range" point
// 4. calculate the translation (amount to bring this "out of range" point back into view)
PointF[] pts =
{
new PointF(0, 0),
new PointF(viewer.Image.ImageWidth, 0),
new PointF(viewer.Image.ImageWidth, viewer.Image.ImageHeight),
new PointF(0, viewer.Image.ImageHeight)
};
PointF origin = new PointF(viewer.Image.ImageWidth / 2, viewer.Image.ImageHeight / 2);
using (Matrix m = new Matrix())
{
m.RotateAt(angle, origin);
m.TransformPoints(pts);
}
float xMin = pts[0].X;
float yMin = pts[0].Y;
for (int i = 1; i < pts.Length; i++)
{
if (pts[i].X < xMin)
{
xMin = pts[i].X;
}
if (pts[i].Y < yMin)
{
yMin = pts[i].Y;
}
}
float xTranslate = -xMin;
float yTranslate = -yMin;
// now, rotate the image
// Note, in this demo we will rotate only the view perspective, but you can use the RotateCommand to rotate
// the annotations and the image around angle angle
viewer.Image.RotateViewPerspective(angle);
AnnPoint annOrigin = new AnnPoint(origin, AnnUnit.Pixel);
// rotate and translate the annotations
foreach (AnnObject obj in container.Objects)
{
obj.Rotate(angle, annOrigin);
if (xTranslate != 0 || yTranslate != 0)
{
obj.Translate(xTranslate, yTranslate);
}
}
// re-set the container bounds
container.Bounds = new AnnRectangle(0, 0, viewer.Image.ImageWidth, viewer.Image.ImageHeight);
}
public void RotateImageAndAnnotations(int angle, AnnContainer container)
{
// round the angle
angle %= 360;
if (angle == 0)
return; // nothing to do
// when we rotate an image, this is what happens:
// 1. the image is rotated around its center (width/2, height/2)
// 2. the image is translated so that its top,left position is at 0,0
// to calculate this translation, we:
// 1. find the 4 end points of the container
// 2. rotate these points
// 3. find the minimum/maximum "out of range" point
// 4. calculate the translation (amount to bring this "out of range" point back into view)
PointF[] pts =
{
new PointF(0, 0),
new PointF(viewer.Image.ImageWidth, 0),
new PointF(viewer.Image.ImageWidth, viewer.Image.ImageHeight),
new PointF(0, viewer.Image.ImageHeight)
};
PointF origin = new PointF(viewer.Image.ImageWidth / 2, viewer.Image.ImageHeight / 2);
using (Matrix m = new Matrix())
{
m.RotateAt(angle, origin);
m.TransformPoints(pts);
}
float xMin = pts[0].X;
float yMin = pts[0].Y;
for (int i = 1; i < pts.Length; i++)
{
if (pts[i].X < xMin)
xMin = pts[i].X;
if (pts[i].Y < yMin)
yMin = pts[i].Y;
}
float xTranslate = -xMin;
float yTranslate = -yMin;
// now, rotate the image
// Note, in this demo we will rotate only the view perspective, but you can use the RotateCommand to rotate
// the annotations and the image around angle angle
viewer.Image.RotateViewPerspective(angle);
AnnPoint annOrigin = new AnnPoint(origin, AnnUnit.Pixel);
// rotate and translate the annotations
foreach (AnnObject obj in container.Objects)
{
obj.Rotate(angle, annOrigin);
if (xTranslate != 0 || yTranslate != 0)
obj.Translate(xTranslate, yTranslate);
}
// re-set the container bounds
container.Bounds = new AnnRectangle(0, 0, viewer.Image.ImageWidth, viewer.Image.ImageHeight);
}