EasyMatchLearn

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Required licenses

EasyMatch

Recommended images

Any image from the folder Sample Images\EasyMatch

Location

[…]C:\Users\Public\Documents\Euresys\Open eVision 24.02\Sample Programs
\[LANGUAGE] samples\Matching and Measurement\EasyMatchLearn

Purpose

This sample program demonstrates how to:

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Use the class EPolygonGauge of the EasyGauge library.

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Edit the geometry of the gauge and change the main parameters.

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Configure various display options.

Code highlights

Initialize a default polygon gauge on the loaded image.

m_PolygonGauge.SetCenterXY(m_Image.GetWidth() / 2.f, m_Image.GetHeight() / 2.f);
float half_size = m_Image.GetWidth() / 4.f;
m_PolygonGauge.AppendVertex(EPoint(half_size, half_size));
m_PolygonGauge.AppendVertex(EPoint(half_size, -half_size));
m_PolygonGauge.AppendVertex(EPoint(-half_size, -half_size));
m_PolygonGauge.AppendVertex(EPoint(-half_size, half_size));
m_PolygonGauge.SetTolerance(m_Image.GetHeight() / 20.f);

Draw the image and the nominal polygon gauge.

SourceImage.Draw(drawAdapter.GetHDC(), m_fZoomFactor, m_fZoomFactor, m_OrgX, m_OrgY);
gauge.SetZoom(m_fZoomFactor);
gauge.SetPan(m_OrgX, m_OrgY);
gauge.Draw(drawAdapter.GetHDC());

if (m_bViewPoints)
  gauge.Draw(drawAdapter.GetHDC(), EDrawingMode_SampledPoints);

Create a new vertex when you clikc on the left button.

if (PolygonGauge.GetHitHandle() == EDragHandle_NoHandle)
{
  PolygonGauge.AddVertexAtDisplayPosition(point.x, point.y);
}