public void DrawMarker()
{
const int markerSidePixels = 128;
const int columns = 4;
const int rows = 5;
const int margin = 20;
// If you want to save markers image, you must change the following values.
const string path = "C:\\markers_6x6_250.png";
int width = columns * markerSidePixels + margin * (columns + 1);
int height = rows * markerSidePixels + margin * (rows + 1);
var id = 0;
Rect roi = new Rect(0, 0, markerSidePixels, markerSidePixels);
using (var outputImage = new Mat(new Size(width, height), MatType.CV_8UC1, Scalar.White))
{
for (var y = 0; y < rows; y++)
{
roi.Top = y * markerSidePixels + margin * (y + 1);
for (var x = 0; x < columns; x++)
{
roi.Left = x * markerSidePixels + margin * (x + 1);
using (var roiMat = new Mat(outputImage, roi))
using (var markerImage = new Mat())
using (var dict = CvAruco.GetPredefinedDictionary(PredefinedDictionaryName.Dict6X6_250))
{
CvAruco.DrawMarker(dict, id++, markerSidePixels, markerImage, 1);
markerImage.CopyTo(roiMat);
}
}
}
if (Debugger.IsAttached)
{
Cv2.ImWrite(path, outputImage);
Process.Start(path);
}
}
}
public static void BuildRegistrationCube(string path, double cmWidth = 10.4)
{
var definition = CoordinateDefinition.Cube(11 * 2.5, cmWidth);
var dir = Path.GetDirectoryName(path);
var sides = new Dictionary <string, int>() //side, starting index id
{
{ "Side1", 0 },
{ "Side2", 4 },
{ "Side3", 8 },
{ "Side4", 12 },
{ "Side5", 16 },
{ "Side6", 20 },
};
var pixelsPerCM = 300 / 2.54;
//2 SQUARES WIDE, 2 SQUARES HIGH, 150 margin on width,
//100 margin on height
var paperPxWidth = pixelsPerCM * cmWidth; //11in - 1in margin *300px/in
var paperPxHeight = pixelsPerCM * cmWidth; //17in - 1in margin *300px/in
var markerPxWidth = (int)(pixelsPerCM * 4.5 / 10.4 * cmWidth);
var marginWidth = (int)((paperPxWidth - 2.0 * markerPxWidth) / 4);
var marginHeight = marginWidth;
var rows = 2;
var columns = 2;
var id = 0;
foreach (var side in sides)
{
Rect roi = new Rect(0, 0, markerPxWidth, markerPxWidth);
using (var outputImage = new Mat(new Size(paperPxWidth, paperPxHeight), MatType.CV_8UC1, Scalar.White))
{
for (var y = 0; y < rows; y++)
{
roi.Top = y * markerPxWidth + marginHeight * (y * 2 + 1);
for (var x = 0; x < columns; x++)
{
roi.Left = x * markerPxWidth + marginWidth * (x * 2 + 1);
using (var roiMat = new Mat(outputImage, roi))
using (var markerImage = new Mat())
using (var dict2 = CvAruco.GetPredefinedDictionary(PredefinedDictionaryName.Dict6X6_250))
{
CvAruco.DrawMarker(dict2, id++, markerPxWidth, markerImage, 1);
markerImage.CopyTo(roiMat);
}
}
}
var crossHairWidth = 1 * pixelsPerCM; // 1 cm
var crossHairColor = new Scalar(25, 25, 25);
Cv2.Line(outputImage, new Point((float)paperPxWidth / 2, (float)paperPxHeight / 2), new Point((float)paperPxWidth / 2, (float)(paperPxHeight / 2 - crossHairWidth)), crossHairColor);
Cv2.Line(outputImage, new Point((float)paperPxWidth / 2, (float)paperPxHeight / 2), new Point((float)paperPxWidth / 2, (float)(paperPxHeight / 2 + crossHairWidth)), crossHairColor);
Cv2.Line(outputImage, new Point((float)paperPxWidth / 2, (float)paperPxHeight / 2), new Point((float)(paperPxWidth / 2 - crossHairWidth), (float)(paperPxHeight / 2)), crossHairColor);
Cv2.Line(outputImage, new Point((float)paperPxWidth / 2, (float)paperPxHeight / 2), new Point((float)(paperPxWidth / 2 + crossHairWidth), (float)(paperPxHeight / 2)), crossHairColor);
Cv2.PutText(outputImage, side.Key, new Point((float)paperPxWidth / 2 - marginWidth / 1.3, (float)paperPxHeight), HersheyFonts.HersheyPlain, 1.5 / 10.4 * cmWidth, new Scalar(25, 25, 25), 1);
path = Path.Combine(dir, side.Key + ".png");
Cv2.ImWrite(path, outputImage);
}
}
}