public void ShouldGetBitmapWithoutWritingIt()
{
// Arrange
var expectedWidth = 5;
var expectedHeight = 21;
var segy = new MockSegyFile(expectedWidth, expectedHeight);
// Act
Bitmap image = Subject.GetBitmap((ISegyFile)segy);
// Assert
Assert.AreEqual(expectedWidth, image.Width);
Assert.AreEqual(expectedHeight, image.Height);
image.Dispose();
}
public void ShouldHaveCorrectResolution()
{
// Arrange
var expectedWidth = 7;
var expectedHeight = 11;
var segy = new MockSegyFile(expectedWidth, expectedHeight);
var path = TestPath() + ".png";
// Act
Subject.Write(segy, path);
// Assert
using (var image = Bitmap.FromFile(path))
{
Assert.AreEqual(expectedWidth, image.Width);
Assert.AreEqual(expectedHeight, image.Height);
}
}
public void WhenDisabledNullSamplesShouldNotBeTransparent()
{
// Arrange
var trace = new MockTrace {
Values = new float[] { 0, 1, -1 }
};
var segy = new MockSegyFile {
Traces = new ITrace[] { trace }
};
var path = TestPath() + ".png";
// Act
Subject.SetNullValuesToTransparent = false;
Subject.Write(segy, path);
// Assert
Bitmap image = new Bitmap(path);
Assert.AreEqual(255, image.GetPixel(0, 0).A);
}
public void PixelValuesShouldBeBlackToWhite()
{
// Arrange
var traceValues = new float[] { 150, 175, 125, 200, 111, 100, 123 }; // Min: 100, Max: 200
var trace = new MockTrace {
Values = traceValues
};
var segy = new MockSegyFile {
Traces = new ITrace[] { trace }
};
var path = TestPath() + ".png";
// Act
Subject.Write(segy, path);
// Assert
Bitmap image = new Bitmap(path);
Assert.AreEqual(Color.FromArgb(0, 0, 0), image.GetPixel(0, 5));
Assert.AreEqual(Color.FromArgb(127, 127, 127), image.GetPixel(0, 0));
Assert.AreEqual(Color.FromArgb(255, 255, 255), image.GetPixel(0, 3));
}
public void ShouldCreateImageForEachInline()
{
// Arrange
var values = new float[] { 1, 2, 3 };
var trace12a = new MockTrace {
Header = new MockTraceHeader {
InlineNumber = 12, CrosslineNumber = 1
}, Values = values
};
var trace12b = new MockTrace {
Header = new MockTraceHeader {
InlineNumber = 12, CrosslineNumber = 2
}, Values = values
};
var trace14 = new MockTrace {
Header = new MockTraceHeader {
InlineNumber = 14
}, Values = values
};
var segy = new MockSegyFile {
Traces = new ITrace[] { trace12a, trace12b, trace14 }
};
var path = TestPath() + ".png";
// Act
Subject.Write(segy, path);
// Assert
var image12 = new Bitmap(TestPath() + " (12).png");
Assert.AreEqual(3, image12.Height);
Assert.AreEqual(2, image12.Width);
var image14 = new Bitmap(TestPath() + " (14).png");
Assert.AreEqual(3, image14.Height);
Assert.AreEqual(1, image14.Width);
}
public void NullSamplesShouldBeTransparent()
{
// Arrange: A sample value of exactly 0
var traceValues = new float[] { 0.00001f, 0, -0.00001f };
var trace = new MockTrace {
Values = traceValues
};
var segy = new MockSegyFile {
Traces = new ITrace[] { trace }
};
var path = TestPath() + ".png";
Subject.SetNullValuesToTransparent = true;
// Act
Subject.Write(segy, path);
// Assert
Bitmap image = new Bitmap(path);
Assert.AreEqual(255, image.GetPixel(0, 0).A);
Assert.AreEqual(0, image.GetPixel(0, 1).A);
Assert.AreEqual(255, image.GetPixel(0, 2).A);
}