Python GeomVertexWriter.addData2f方法代码示例

# 需要导入模块: from pandac.PandaModules import GeomVertexWriter [as 别名]
# 或者: from pandac.PandaModules.GeomVertexWriter import addData2f [as 别名]
	def drawSquare(self, x1,y1,z1, x2,y2,z2):
		format=GeomVertexFormat.getV3n3cpt2()
		vdata=GeomVertexData('square', format, Geom.UHStatic)
		
		vertex=GeomVertexWriter(vdata, 'vertex')
		normal=GeomVertexWriter(vdata, 'normal')
		color=GeomVertexWriter(vdata, 'color')
		texcoord=GeomVertexWriter(vdata, 'texcoord')
		
		#make sure we draw the sqaure in the right plane
		#if x1!=x2:
		vertex.addData3f(x1, y1, z1)
		vertex.addData3f(x2, y1, z1)
		vertex.addData3f(x2, y2, z2)
		vertex.addData3f(x1, y2, z2)

		normal.addData3f(self.myNormalize(Vec3(2*x1-1, 2*y1-1, 2*z1-1)))
		normal.addData3f(self.myNormalize(Vec3(2*x2-1, 2*y1-1, 2*z1-1)))
		normal.addData3f(self.myNormalize(Vec3(2*x2-1, 2*y2-1, 2*z2-1)))
		normal.addData3f(self.myNormalize(Vec3(2*x1-1, 2*y2-1, 2*z2-1)))
		
		#adding different colors to the vertex for visibility
		color.addData4f(0.0,0.5,0.0,0.5)
		color.addData4f(0.0,0.5,0.0,0.5)
		color.addData4f(0.0,0.5,0.0,0.5)
		color.addData4f(0.0,0.5,0.0,0.5)
		
		texcoord.addData2f(0.0, 1.0)
		texcoord.addData2f(0.0, 0.0)
		texcoord.addData2f(1.0, 0.0)
		texcoord.addData2f(1.0, 1.0)

		#quads arent directly supported by the Geom interface
		#you might be interested in the CardMaker class if you are
		#interested in rectangle though
		tri1=GeomTriangles(Geom.UHStatic)
		tri2=GeomTriangles(Geom.UHStatic)
		
		tri1.addVertex(0)
		tri1.addVertex(1)
		tri1.addVertex(3)
		
		tri2.addConsecutiveVertices(1,3)
		
		tri1.closePrimitive()
		tri2.closePrimitive()
		
		square=Geom(vdata)
		square.addPrimitive(tri1)
		square.addPrimitive(tri2)
		#square.setIntoCollideMask(BitMask32.bit(1))
		
		squareNP = NodePath(GeomNode('square gnode')) 
		squareNP.node().addGeom(square)
		squareNP.setTransparency(1) 
		squareNP.setAlphaScale(.5) 
		squareNP.setTwoSided(True)
		squareNP.setCollideMask(BitMask32.bit(1))
		return squareNP

# 需要导入模块: from pandac.PandaModules import GeomVertexWriter [as 别名]
# 或者: from pandac.PandaModules.GeomVertexWriter import addData2f [as 别名]
def makeCircle(vdata, numVertices=40,offset=Vec3(0,0,0), direction=1):
	circleGeom=Geom(vdata)

	vertWriter=GeomVertexWriter(vdata, "vertex")
	normalWriter=GeomVertexWriter(vdata, "normal")
	colorWriter=GeomVertexWriter(vdata, "color")
	uvWriter=GeomVertexWriter(vdata, "texcoord")
	drawWriter=GeomVertexWriter(vdata, "drawFlag")

	#make sure we start at the end of the GeomVertexData so we dont overwrite anything
	#that might be there already
	startRow=vdata.getNumRows()

	vertWriter.setRow(startRow)
	colorWriter.setRow(startRow)
	uvWriter.setRow(startRow)
	normalWriter.setRow(startRow)
	drawWriter.setRow(startRow)

	angle=2*math.pi/numVertices
	currAngle=angle

	for i in range(numVertices):
		position=Vec3(math.cos(currAngle)+offset.getX(), math.sin(currAngle)+offset.getY(),offset.getZ())
		vertWriter.addData3f(position)
		uvWriter.addData2f(position.getX()/2.0+0.5,position.getY()/2.0+0.5)
		colorWriter.addData4f(1.0, 1.0, 1.0, 1.0)
		position.setZ(position.getZ()*direction)
		position.normalize()
		normalWriter.addData3f(position)
		
		#at default Opengl only draws "front faces" (all shapes whose vertices are arranged CCW). We
		#need direction so we can specify which side we want to be the front face
		currAngle+=angle*direction

	circle=GeomTrifans(Geom.UHStatic)
	circle.addConsecutiveVertices(startRow, numVertices)
	circle.closePrimitive()

	circleGeom.addPrimitive(circle)
	
	return circleGeom

# 需要导入模块: from pandac.PandaModules import GeomVertexWriter [as 别名]
# 或者: from pandac.PandaModules.GeomVertexWriter import addData2f [as 别名]
def create_table_geom():
    format = GeomVertexFormat.getV3n3c4t2()
    # GeomVertexData. 
    vdata = GeomVertexData('table_vertex', format, Geom.UHStatic)
    
    vertex = GeomVertexWriter(vdata, 'vertex')
    normal = GeomVertexWriter(vdata, 'normal')
    color = GeomVertexWriter(vdata, 'color')
    texcoord = GeomVertexWriter(vdata, 'texcoord')

    vertex.addData3f(xmax, ymin, 0)
    normal.addData3f(0, 0, 1)
    color.addData4f(0, 0, 1, 1)
    texcoord.addData2f(1, 0)
    
    vertex.addData3f(xmax, ymax, 0)
    normal.addData3f(0, 0, 1)
    color.addData4f(0, 0, 1, 1)
    texcoord.addData2f(1, 1)
    
    vertex.addData3f(xmin, ymax, 0)
    normal.addData3f(0, 0, 1)
    color.addData4f(0, 0, 1, 1)
    texcoord.addData2f(0, 1)
    
    vertex.addData3f(xmin, ymin, 0)
    normal.addData3f(0, 0, 1)
    color.addData4f(0, 0, 1, 1)
    texcoord.addData2f(0, 0)
    
    prim = GeomTriangles(Geom.UHStatic)
    prim.addVertex(0)
    prim.addVertex(1)
    prim.addVertex(2)
    prim.closePrimitive()
    
    prim.addVertex(0)
    prim.addVertex(2)
    prim.addVertex(3)
    prim.closePrimitive()

    geom = Geom(vdata)
    geom.addPrimitive(prim)
    return geom

# 需要导入模块: from pandac.PandaModules import GeomVertexWriter [as 别名]
# 或者: from pandac.PandaModules.GeomVertexWriter import addData2f [as 别名]
 def addGeometry(self, geomData):
   debugGui = dict()
   
   format = GeomVertexFormat.getV3n3t2()
   vdata = GeomVertexData('name', format, Geom.UHStatic)
   vertex = GeomVertexWriter(vdata, 'vertex')
   normal = GeomVertexWriter(vdata, 'normal')
   texcoord = GeomVertexWriter(vdata, 'texcoord')
   prim = GeomTriangles(Geom.UHStatic)
   
   postphonedTriangles = list()
   vtxTargetId0 = vtxTargetId1 = vtxTargetId2 = None
   vtxDataCounter = 0
   for vtxSourceId0, vtxSourceId1, vtxSourceId2 in geomData.triangles:
     vx0,vy0,vz0 = v0 = geomData.getVertex(vtxSourceId0)
     vx1,vy1,vz1 = v1 = geomData.getVertex(vtxSourceId1)
     vx2,vy2,vz2 = v2 = geomData.getVertex(vtxSourceId2)
     # prepare the vertices
     uvx0, uvy0 = uv0 = geomData.getUv(vtxSourceId0)
     uvx1, uvy1 = uv1 = geomData.getUv(vtxSourceId1)
     uvx2, uvy2 = uv2 = geomData.getUv(vtxSourceId2)
     #
     n0 = geomData.getNormal(vtxSourceId0)
     n1 = geomData.getNormal(vtxSourceId1)
     n2 = geomData.getNormal(vtxSourceId2)
     
     # make it wrap nicely
     if min(uvx0,uvx1,uvx2) < .25 and max(uvx0,uvx1,uvx2) > 0.75:
       if uvx0 < 0.25: uvx0 += 1.0
       if uvx1 < 0.25: uvx1 += 1.0
       if uvx2 < 0.25: uvx2 += 1.0
     
     vertex.addData3f(*v0)
     normal.addData3f(*n0)
     texcoord.addData2f(*uv0)
     vtxTargetId0 = vtxDataCounter
     vtxDataCounter += 1
   
     vertex.addData3f(*v1)
     normal.addData3f(*n1)
     texcoord.addData2f(*uv1)
     vtxTargetId1 = vtxDataCounter
     vtxDataCounter += 1
   
     vertex.addData3f(*v2)
     normal.addData3f(*n2)
     texcoord.addData2f(*uv2)
     vtxTargetId2 = vtxDataCounter
     vtxDataCounter += 1
     
     prim.addVertex(vtxTargetId0)
     prim.addVertex(vtxTargetId1)
     prim.addVertex(vtxTargetId2)
     prim.closePrimitive()
     
     if False:
       if vtxSourceId0 not in debugGui:
         i = InfoTextBillaboarded(render)
         i.setScale(0.05)
         i.billboardNodePath.setPos(Vec3(x0,y0,z0)*1.1)
         i.setText('%i: %.1f %.1f %.1f\n%.1f %.1f' % (vtxSourceId0, x0,y0,z0, nx0, ny0))
         debugGui[vtxSourceId0] = i
       if vtxSourceId1 not in debugGui:
         i = InfoTextBillaboarded(render)
         i.setScale(0.05)
         i.billboardNodePath.setPos(Vec3(x1,y1,z1)*1.1)
         i.setText('%i: %.1f %.1f %.1f\n%.1f %.1f' % (vtxSourceId1, x1,y1,z1, nx1, ny1))
         debugGui[vtxSourceId1] = i
       if vtxSourceId2 not in debugGui:
         i = InfoTextBillaboarded(render)
         i.setScale(0.05)
         i.billboardNodePath.setPos(Vec3(x2,y2,z2)*1.1)
         i.setText('%i: %.1f %.1f %.1f\n%.1f %.1f' % (vtxSourceId2, x2,y2,z2, nx2, ny2))
         debugGui[vtxSourceId2] = i
   
   geom = Geom(vdata)
   geom.addPrimitive(prim)
   
   node = GeomNode('gnode')
   node.addGeom(geom)
   
   nodePath = self.attachNewNode(node)
   return nodePath

# 需要导入模块: from pandac.PandaModules import GeomVertexWriter [as 别名]
# 或者: from pandac.PandaModules.GeomVertexWriter import addData2f [as 别名]
  def make_layer(self, i, a, b):
    # get data
    data = self.subdata[a][b]

    # set color + alpha of vertex texture
    def ap(n):
      alpha = 0
      if i == n:
        alpha = 1.0
      return alpha
    def tp(n):
      list = [0, 0, 0, 0]
      if i == n:
        list = [1, 1, 1, 0.75]
      return list

    # set vertex data
    vdata = GeomVertexData('plane', GeomVertexFormat.getV3n3c4t2(), Geom.UHStatic)
    vertex = GeomVertexWriter(vdata, 'vertex')
    normal = GeomVertexWriter(vdata, 'normal')
    color = GeomVertexWriter(vdata, 'color')
    uv = GeomVertexWriter(vdata, 'texcoord')

    # set vertices
    number = 0
    for x in range(0, len(data) - 1):
      for y in range(0, len(data[x]) - 1):
        # get vertex data
        v1 = Vec3(x, y, data[x][y]['h'])
        c1 = data[x][y]['c']
        t1 = data[x][y]['texnum']
        v2 = Vec3(x+1, y, data[x+1][y]['h'])
        c2 = data[x+1][y]['c']
        t2 = data[x+1][y]['texnum']
        v3 = Vec3(x+1, y+1, data[x+1][y+1]['h'])
        c3 = data[x+1][y+1]['c']
        t3 = data[x+1][y+1]['texnum']
        v4 = Vec3(x, y+1, data[x][y+1]['h'])
        c4 = data[x][y+1]['c']
        t4 = data[x][y+1]['texnum']
        n=(0, 0, 1) # normal

        # assign vertex colors + alpha
        a1, a2, a3, a4 = ap(t1), ap(t2), ap(t3), ap(t4)
        t1, t2, t3, t4 = tp(t1), tp(t2), tp(t3), tp(t4)

        if v1[2]==0:
          t1 = [data[x][y]['c'][0], data[x][y]['c'][1], data[x][y]['c'][2],
                a1]
        if v2[2]==0:
          t2 = [data[x+1][y]['c'][0], data[x+1][y]['c'][1],
                data[x+1][y]['c'][2], a2]
        if v3[2]==0:
          t3 = [data[x+1][y+1]['c'][0], data[x+1][y+1]['c'][1],
                data[x+1][y+1]['c'][2], a3]
        if v4[2]==0:
          t4 = [data[x][y+1]['c'][0], data[x][y+1]['c'][1],
                data[x][y+1]['c'][2], a4]

        if a1 == 0 and a2 == 0 and a3 == 0 and a4 == 0:
          continue

        # add vertices
        vertex.addData3f(v1)
        normal.addData3f(*n)
        color.addData4f(*t1)
        uv.addData2f(0,0)

        vertex.addData3f(v2)
        normal.addData3f(*n)
        color.addData4f(*t2)
        uv.addData2f(1,0)

        vertex.addData3f(v3)
        normal.addData3f(*n)
        color.addData4f(*t3)
        uv.addData2f(1,1)

        vertex.addData3f(v1)
        normal.addData3f(*n)
        color.addData4f(*t1)
        uv.addData2f(0,0)

        vertex.addData3f(v3)
        normal.addData3f(*n)
        color.addData4f(*t3)
        uv.addData2f(1,1)

        vertex.addData3f(v4)
        normal.addData3f(*n)
        color.addData4f(*t4)
        uv.addData2f(0,1)

        number = number + 2

    # add triangles
    prim = GeomTriangles(Geom.UHStatic)
    for n in range(number):
      prim.addVertices((n * 3) + 2, (n * 3) + 0, (n * 3) + 1)
    prim.closePrimitive()
#.........这里部分代码省略.........

# 需要导入模块: from pandac.PandaModules import GeomVertexWriter [as 别名]
# 或者: from pandac.PandaModules.GeomVertexWriter import addData2f [as 别名]
  def make_base(self, a, b):
    # get data
    data = self.subdata[a][b]
    # set vertex data
    vdata = GeomVertexData('plane', GeomVertexFormat.getV3n3c4t2(), Geom.UHStatic)
    vertex = GeomVertexWriter(vdata, 'vertex')
    normal = GeomVertexWriter(vdata, 'normal')
    color = GeomVertexWriter(vdata, 'color')
    uv = GeomVertexWriter(vdata, 'texcoord')

    # set vertices
    number = 0
    for x in range(0, len(data) - 1):
      for y in range(0, len(data[x]) - 1):
        # get vertex data
        v1 = Vec3(x, y, data[x][y]['h'])
        v2 = Vec3(x + 1, y, data[x+1][y]['h'])
        v3 = Vec3(x + 1, y + 1, data[x+1][y+1]['h'])
        v4 = Vec3(x, y + 1, data[x][y+1]['h'])
        n = (0, 0, 1) # normal

        # assign vertex colors + alpha
        option = 1 # black
        if option == 1:
          c = 0
          c1 = [c, c, c, 1]
          c2 = [c, c, c, 1]
          c3 = [c, c, c, 1]
          c4 = [c, c, c, 1]
        # option2: color vertices
        if option == 2:
          alpha = 1.0
          c1 = [data[x][y]['c'][0], data[x][y]['c'][1],
                data[x][y]['c'][2], alpha]
          c2 = [data[x+1][y]['c'][0], data[x+1][y]['c'][1],
                data[x+1][y]['c'][2], alpha]
          c3 = [data[x+1][y+1]['c'][0], data[x+1][y+1]['c'][1],
                data[x+1][y+1]['c'][2], alpha]
          c4 = [data[x][y+1]['c'][0], data[x][y+1]['c'][1],
                data[x][y+1]['c'][2], alpha]

        if option == 3:
          c1 = self.color_vertex(v1)
          c2 = self.color_vertex(v2)
          c3 = self.color_vertex(v3)
          c4 = self.color_vertex(v4)

        vertex.addData3f(v1)
        normal.addData3f(*n)
        color.addData4f(*c1)
        uv.addData2f(0,0)

        vertex.addData3f(v2)
        normal.addData3f(*n)
        color.addData4f(*c2)
        uv.addData2f(1,0)

        vertex.addData3f(v3)
        normal.addData3f(*n)
        color.addData4f(*c3)
        uv.addData2f(1,1)

        vertex.addData3f(v1)
        normal.addData3f(*n)
        color.addData4f(*c1)
        uv.addData2f(0,0)

        vertex.addData3f(v3)
        normal.addData3f(*n)
        color.addData4f(*c3)
        uv.addData2f(1,1)

        vertex.addData3f(v4)
        normal.addData3f(*n)
        color.addData4f(*c4)
        uv.addData2f(0,1)

#         # add vertex h
#         vertex.addData3f(v1)
#         # normal.addData3f(*n)
#         vertex.addData3f(v2)
#         # normal.addData3f(*n)
#         vertex.addData3f(v3)
#         # normal.addData3f(*n)
#         vertex.addData3f(v1)
#         # normal.addData3f(*n)
#         vertex.addData3f(v3)
#         # normal.addData3f(*n)
#         vertex.addData3f(v4)
#         # normal.addData3f(*n)
#         # add vertex color
#         color.addData4f(*c1)
#         color.addData4f(*c2)
#         color.addData4f(*c3)
#         color.addData4f(*c1)
#         color.addData4f(*c3)
#         color.addData4f(*c4)

        # iterate
        number = number + 2
#.........这里部分代码省略.........

# 需要导入模块: from pandac.PandaModules import GeomVertexWriter [as 别名]
# 或者: from pandac.PandaModules.GeomVertexWriter import addData2f [as 别名]
def generate_sphere(name, radius, resolution):
    """
    Generates a sphere with the provided resolution.

    @type name: string
    @param name: Name of this sphere.

    @type radius: number
    @param radius: Radius of sphere in kilometers.

    @type resolution: number
    @param resolution: Resolution of sphere (minimum 2)

    @rtype: GeomNode
    @return: A GeomNode with the given sphere.
    """

    if resolution < 2:
        raise ValueError, "resolution must be >= 2"

    horizBands = resolution*2
    vertBands = horizBands*2

    vertexFormat = GeomVertexFormat.getV3n3c4t2()
    vdata = GeomVertexData('%s_vdata' % name, vertexFormat, Geom.UHDynamic)

    vertex = GeomVertexWriter(vdata, 'vertex')
    color = GeomVertexWriter(vdata, 'color')
    normal = GeomVertexWriter(vdata, 'normal')
    texcoord = GeomVertexWriter(vdata, 'texcoord')

    vertDelta = omath.TWOPI / vertBands
    horizDelta = omath.TWOPI / horizBands

    numVertices = 0

    for i in range(vertBands+1):
        lowTheta = i * vertDelta
        highTheta = (i+1) * vertDelta

        cosLowTheta = math.cos(lowTheta)
        sinLowTheta = math.sin(lowTheta)
        cosHighTheta = math.cos(highTheta)
        sinHighTheta = math.sin(highTheta)

        for j in range(horizBands):
            horizTheta = j * horizDelta

            cosHorizTheta = math.cos(horizTheta)
            sinHorizTheta = math.sin(horizTheta)

            ex = cosLowTheta*cosHorizTheta
            ey = sinLowTheta
            ez = cosLowTheta*sinHorizTheta

            vertex.addData3f(ex*radius, ey*radius, ez*radius)
            normal.addData3f(ex, ey, ez)
            color.addData4f(.75, .75, .75, 1)
            texcoord.addData2f(i / vertBands, j / horizBands)

            ex = cosHighTheta*cosHorizTheta
            ey = sinHighTheta
            ez = cosHighTheta*sinHorizTheta

            vertex.addData3f(ex*radius, ey*radius, ez*radius)
            normal.addData3f(ex, ey, ez)
            color.addData4f(.75, .75, .75, 1)
            texcoord.addData2f(i / vertBands, j / horizBands)

            numVertices += 2

    prim = GeomTristrips(Geom.UHStatic)
    prim.addConsecutiveVertices(0, numVertices)
    prim.closePrimitive()

    geom = Geom(vdata)
    geom.addPrimitive(prim)

    geomNode = GeomNode(name)
    geomNode.addGeom(geom)

    return GeomScaler(geomNode)

# 需要导入模块: from pandac.PandaModules import GeomVertexWriter [as 别名]
# 或者: from pandac.PandaModules.GeomVertexWriter import addData2f [as 别名]

#.........这里部分代码省略.........
                            )
                    pass
                break  # Leave once we've found the appropriate frame

        # Prepare tracking list of consumed nodes.
        self.clearNodesForDrawing()
        # Make an identifier to tack onto primitive names in Panda3d's scene graph.
        frameIndexForName = 1

        # Loop through loaded frames that make up composite frame.
        for loadedFrame in frameList:
            # For debugging purposes, print the object.
            if False:
                loadedFrame.printAsString()

            # Set up place to store primitive 3d object; note: requires vertex data made by GeomVertexData
            squareMadeByTriangleStrips = GeomTristrips(Geom.UHDynamic)

            # Set up place to hold 3d data and for the following coordinates:
            #   square's points (V3: x, y, z),
            #   the colors at each point of the square (c4: r, g, b, a), and
            #   for the UV texture coordinates at each point of the square     (t2: S, T).
            vertexData = GeomVertexData(
                "square-" + str(frameIndexForName), GeomVertexFormat.getV3c4t2(), Geom.UHDynamic
            )
            vertex = GeomVertexWriter(vertexData, "vertex")
            color = GeomVertexWriter(vertexData, "color")
            texcoord = GeomVertexWriter(vertexData, "texcoord")

            # Add the square's data
            # Upper-Left corner of square
            vertex.addData3f(-loadedFrame.bound.Width / 2.0, 0, -loadedFrame.bound.Height / 2.0)
            color.addData4f(loadedFrame.color.R, loadedFrame.color.G, loadedFrame.color.B, loadedFrame.color.A)
            texcoord.addData2f(loadedFrame.s, loadedFrame.T)

            # Upper-Right corner of square
            vertex.addData3f(loadedFrame.bound.Width / 2.0, 0, -loadedFrame.bound.Height / 2.0)
            color.addData4f(loadedFrame.color.R, loadedFrame.color.G, loadedFrame.color.B, loadedFrame.color.A)
            texcoord.addData2f(loadedFrame.S, loadedFrame.T)

            # Lower-Left corner of square
            vertex.addData3f(-loadedFrame.bound.Width / 2.0, 0, loadedFrame.bound.Height / 2.0)
            color.addData4f(loadedFrame.color.R, loadedFrame.color.G, loadedFrame.color.B, loadedFrame.color.A)
            texcoord.addData2f(loadedFrame.s, loadedFrame.t)

            # Lower-Right corner of square
            vertex.addData3f(loadedFrame.bound.Width / 2.0, 0, loadedFrame.bound.Height / 2.0)
            color.addData4f(loadedFrame.color.R, loadedFrame.color.G, loadedFrame.color.B, loadedFrame.color.A)
            texcoord.addData2f(loadedFrame.S, loadedFrame.t)

            # Pass data to primitive
            squareMadeByTriangleStrips.addNextVertices(4)
            squareMadeByTriangleStrips.closePrimitive()
            square = Geom(vertexData)
            square.addPrimitive(squareMadeByTriangleStrips)
            # Pass primtive to drawing node
            drawPrimitiveNode = GeomNode("square-" + str(frameIndexForName))
            drawPrimitiveNode.addGeom(square)
            # Pass node to scene (effect camera)
            nodePath = self.effectCameraNodePath.attachNewNode(drawPrimitiveNode)
            # Linear dodge:
            if loadedFrame.blendMode == "darken":
                nodePath.setAttrib(
                    ColorBlendAttrib.make(
                        ColorBlendAttrib.MAdd,
                        ColorBlendAttrib.OOneMinusFbufferColor,