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import numpy
from UM.Math.Color import Color
from UM.Math.Vector import Vector
from UM.Mesh.MeshBuilder import MeshBuilder
from UM.Mesh.MeshData import MeshType
def test_addVertexWithNormal():
builder = MeshBuilder()
builder.addVertexWithNormal(10, 20, 30, -1, -2, -3)
assert builder.getVertex(0)[0] == 10
assert builder.getVertex(0)[1] == 20
assert builder.getVertex(0)[2] == 30
assert builder.hasNormals() # We just added a vert with a normal, so we should have em
assert builder.getNormals()[0][0] == -1
assert builder.getNormals()[0][1] == -2
assert builder.getNormals()[0][2] == -3
assert builder.getVertexCount() == 1
# There is only one vertex, so we should get None back
assert builder.getVertex(22) is None
def test_addFace():
builder = MeshBuilder()
builder.addFaceByPoints(0, 0, 0, 10, 0, 0, 10, 10, 0)
assert builder.getVertexCount() == 3
assert builder.getFaceCount() == 1
assert not builder.hasNormals()
# Check if all the data ended up where it should be
assert builder.getVertex(0)[0] == 0
assert builder.getVertex(0)[1] == 0
assert builder.getVertex(0)[2] == 0
assert builder.getVertex(1)[0] == 10
assert builder.getVertex(1)[1] == 0
assert builder.getVertex(1)[2] == 0
assert builder.getVertex(2)[0] == 10
assert builder.getVertex(2)[1] == 10
assert builder.getVertex(2)[2] == 0
def test_addFaceWithNormals():
builder = MeshBuilder()
builder.addFaceWithNormals(0, 0, 0, 1, 0, 0, 10, 0, 0, 0, 1, 0, 10, 10, 0, 0, 0, 1)
assert builder.getVertexCount() == 3
assert builder.getFaceCount() == 1
assert builder.hasNormals()
def test_setVertexColor():
builder = MeshBuilder()
builder.addVertex(1, 2, 3)
builder.setVertexColor(0, Color(1.0, 0.5, 0.2))
assert builder.hasColors()
assert builder.getColors()[0][0] == 1.0
def test_calculateNormals():
builder = MeshBuilder()
# Builder shouldn't start off with normals
assert not builder.hasNormals()
# Ensure that if there are no vertices / faces that calling the calculate doesn't break anything.
builder.calculateNormals()
assert not builder.hasNormals()
builder.addFaceByPoints(0, 0, 0, 10, 0, 0, 10, 10, 0)
builder.calculateNormals()
assert builder.hasNormals()
assert numpy.array_equal(builder.getNormals(), numpy.array([[0., 0., 1.], [0., 0., 1.], [0., 0., 1.]]))
builder2 = MeshBuilder()
builder2.addFaceByPoints(0, 0, 0, 0, 10, 0, 0, 10, 10)
builder2.calculateNormals(fast = True)
assert numpy.array_equal(builder2.getNormals(), numpy.array([[1., 0., 0], [1., 0., 0.], [1., 0., 0.]]))
def test_addLine():
builder = MeshBuilder()
builder.addLine(Vector(0, 0, 0), Vector(10, 11, 12))
assert builder.getVertexCount() == 2
assert builder.getVertex(1)[0] == 10
assert builder.getVertex(1)[1] == 11
assert builder.getVertex(1)[2] == 12
def test_addLineWithColor():
builder = MeshBuilder()
builder.addLine(Vector(0, 0, 0), Vector(10, 11, 12), Color(1.0, 0.5, 0.25))
assert builder.getColors()[0][0] == 1.0
assert builder.getColors()[0][1] == 0.5
assert builder.getColors()[0][2] == 0.25
assert builder.getColors()[1][0] == 1.0
assert builder.getColors()[1][1] == 0.5
assert builder.getColors()[1][2] == 0.25
def test_reserveFaceCount():
builder = MeshBuilder()
builder.addVertex(1, 2, 3)
builder.reserveFaceCount(200)
# Reserving face count should reset the verts
assert builder.getVertexCount() == 0
def test_reserveFaceAndVertexCount():
builder = MeshBuilder()
builder.addVertex(1, 2, 3)
builder.reserveFaceAndVertexCount(200, 20)
# Reserving face count should reset the verts
assert builder.getVertexCount() == 0
def test_reserveVertexCount():
builder = MeshBuilder()
assert builder.getVertices() is None
builder.addVertex(1, 2, 3)
builder.reserveVertexCount(10)
# Reserving face count should reset the verts
assert builder.getVertexCount() == 0
def test_getSetCenterPosition():
builder = MeshBuilder()
builder.setCenterPosition(Vector(100, 200, 300))
assert builder.getCenterPosition() == Vector(100, 200, 300)
def test_getSetType():
builder = MeshBuilder()
builder.setType(MeshType.faces)
assert builder.getType() == MeshType.faces
# Should have no effect
builder.setType("ZOMG")
assert builder.getType() == MeshType.faces
def test_setVertices():
builder = MeshBuilder()
builder.setVertices(numpy.zeros(3))
assert builder.getVertexCount() == 1
assert builder.getVertices()[0] == 0
def test_setIndices():
builder = MeshBuilder()
builder.setIndices(numpy.zeros(3))
assert builder.getFaceCount() == 1
assert builder.getIndices()[0] == 0
def test_addIndices():
builder = MeshBuilder()
builder.addIndices(numpy.zeros(3))
assert builder.getFaceCount() == 3
assert builder.getIndices()[0] == 0
builder.addIndices(numpy.zeros(3))
assert builder.getFaceCount() == 6
def test_addVertices():
builder = MeshBuilder()
builder.addVertices(numpy.zeros(3))
assert builder.getVertexCount() == 3
builder.addVertices(numpy.zeros(3))
assert builder.getVertexCount() == 6
def test_setUVCoordinates():
builder = MeshBuilder()
builder.setVertices(numpy.zeros((10 * 3, 3), dtype=numpy.float32))
builder.setVertexUVCoordinates(5, 20, 22)
assert builder.hasUVCoordinates()
assert builder.getUVCoordinates()[5, 0] == 20
assert builder.getUVCoordinates()[5, 1] == 22
def test_getSetFilename():
builder = MeshBuilder()
builder.setFileName("HERPDERP")
assert builder.getFileName() == "HERPDERP"
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