public void MustBePPMTypeThreeToImport()
{
var ppm = @"P32
1 1
255
0 0 0";
var action = new Action(() => PPM.Parse(ppm));
action.Should().Throw <FileLoadException>();
}
public void HandlesColorDataOnDifferentLines()
{
var ppm = @"P3
1 1
255
51
153
204";
var canvas = PPM.Parse(ppm);
canvas.PixelAt(0, 0).Should().Be(new Color(0.2f, 0.6f, 0.8f));
}
public void CreatesCanvasWithProperDimensions()
{
var ppm = @"P3
10 2
255
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0";
var canvas = PPM.Parse(ppm);
canvas.Width.Should().Be(10);
canvas.Height.Should().Be(2);
}
public void HandlesComments()
{
var ppm = @"P3
# this is a comment
2 1
# this, too
255
# another comment
255 255 255
# oh, no, comments in the pixel data!
255 0 255";
var canvas = PPM.Parse(ppm);
canvas.PixelAt(0, 0).Should().Be(new Color(1, 1, 1));
canvas.PixelAt(1, 0).Should().Be(new Color(1, 0, 1));
}
public void ProperlyScalesPixelColor()
{
var ppm = @"P3
4 3
255
255 127 0 0 127 255 127 255 0 255 255 255
0 0 0 255 0 0 0 255 0 0 0 255
255 255 0 0 255 255 255 0 255 127 127 127";
var canvas = PPM.Parse(ppm);
canvas.PixelAt(0, 0).Should().Be(new Color(1, 0.498f, 0));
canvas.PixelAt(3, 0).Should().Be(new Color(1, 1, 1));
canvas.PixelAt(2, 1).Should().Be(new Color(0, 1, 0));
canvas.PixelAt(0, 2).Should().Be(new Color(1, 1, 0));
canvas.PixelAt(3, 2).Should().Be(new Color(0.498f, 0.498f, 0.498f));
}
public void ReturnsColorByUV()
{
var ppm = @"P3
10 10
10
0 0 0 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9
1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 0 0 0
2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 0 0 0 1 1 1
3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 0 0 0 1 1 1 2 2 2
4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 0 0 0 1 1 1 2 2 2 3 3 3
5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4
6 6 6 7 7 7 8 8 8 9 9 9 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5
7 7 7 8 8 8 9 9 9 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6
8 8 8 9 9 9 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7
9 9 9 0 0 0 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8
";
var canvas = PPM.Parse(ppm);
var pattern = new UVImage(canvas);
pattern.ColorAt(new UVPoint(0f, 0f)).Should().Be(new Color(0.9f, 0.9f, 0.9f));
pattern.ColorAt(new UVPoint(0.3f, 0f)).Should().Be(new Color(0.2f, 0.2f, 0.2f));
pattern.ColorAt(new UVPoint(0.6f, 0.3f)).Should().Be(new Color(0.1f, 0.1f, 0.1f));
pattern.ColorAt(new UVPoint(1f, 1f)).Should().Be(new Color(0.9f, 0.9f, 0.9f));
}